2008 Hummer H3 Owner's Manual
2008 Hummer H3 Manual
2008 Hummer H3 manual content summary:
- 2008 Hummer H3 | Owner's Manual - Page 1
Vehicle ...4-2 Towing ...4-48 Service and Appearance Care ...5-1 Service ...5-3 Fuel ...5-5 Checking Things Under the Hood ...5-11 Rear Axle ...5-45 Four-Wheel Drive ...5-46 Front Axle ...5-46 Headlamp Aiming ...5-46 Bulb Replacement ...5-49 Windshield Wiper Blade Replacement ...5-52 Tires ...5-54 - 2008 Hummer H3 | Owner's Manual - Page 2
first sold in Canada, substitute the name "General Motors of Canada Limited" for HUMMER whenever it appears in this manual. This manual describes features that may be available in this model, but your vehicle may not have all of them. For example, more than one entertainment system may be offered - 2008 Hummer H3 | Owner's Manual - Page 3
Many people read the owner manual from beginning to end when they first receive their new vehicle to learn about the vehicle's features and controls. Pictures and words work together to explain things. {CAUTION: These mean there is something that could hurt you or other people. We tell you what - 2008 Hummer H3 | Owner's Manual - Page 4
. Many times, this damage would not be covered by your vehicle's warranty, and it could be costly. The notice tells what to do to help avoid the damage. When you read other manuals, you might see CAUTION and NOTICE warnings in different colors or in different words. There are also warning labels on - 2008 Hummer H3 | Owner's Manual - Page 5
Restraint in the Center Rear Seat Position Servicing Your Airbag-Equipped Vehicle ...1-67 Adding Equipment to Your Airbag-Equipped Vehicle ...1-68 Restraint System Check ...1-69 Checking the Restraint Systems ...1-69 Replacing Restraint System Parts After a Crash ...1-70 Front Seats ...1-2 Manual - 2008 Hummer H3 | Owner's Manual - Page 6
to unlock the seat. 2. Slide the seat to the desired position and release the bar. {CAUTION: You can lose control of the vehicle if you try to adjust a manual driver's seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a pedal when you do not want - 2008 Hummer H3 | Owner's Manual - Page 7
forward or rearward. Press and hold the front of the control until you have the desired lumbar support. To decrease lumbar support, press and hold the rear of the control. • Raise or lower the front part of the seat cushion by moving the front of the control up or down. • Raise or lower the rear - 2008 Hummer H3 | Owner's Manual - Page 8
fastened for the heated seat feature to work on the passenger's seat. Reclining Seatbacks {CAUTION: You can lose control of the vehicle if you try to adjust a manual driver's seat while the vehicle is moving. The sudden movement could startle and confuse you, or make you push a pedal when you do - 2008 Hummer H3 | Owner's Manual - Page 9
. That could cause injury to the person sitting there. Always push and pull on the seatback to be sure it is locked. The seats have manual reclining seatbacks. The lever used to operate them is located on the outboard side of the seats. To recline the seatback: 1. Lift the recline lever - 2008 Hummer H3 | Owner's Manual - Page 10
vehicle is in motion can be dangerous. Even if you buckle up, your safety belts cannot do their job when you are reclined like this. The shoulder belt cannot do its job because it will not be against your body injuries. For proper protection when the vehicle is in motion, have the seatback upright - 2008 Hummer H3 | Owner's Manual - Page 11
Head Restraints Pull the head restraint up to raise it. To lower the head restraint, press the button, located on the top of the seatback, and push the head restraint down. Adjust the head restraint so that the top of the restraint is at the same height as the occupant's head. This position - 2008 Hummer H3 | Owner's Manual - Page 12
Rear Seats 60/40 Split Bench Seat The 60/40 split bench seats can be folded to give you more cargo space. 2. Place your hand under the front of the Make sure that nothing is on, under, or in front of the seat. There is a label below the seat cushion with instructions to aid in seat operation. 1-8 - 2008 Hummer H3 | Owner's Manual - Page 13
moving the front seat forward and/or moving the front seatback more upright. 6. Repeat the steps for the other half of the 60/40 split bench seat. 1-9 - 2008 Hummer H3 | Owner's Manual - Page 14
sitting there. Always push and pull on the seatback to be sure it is locked. Safety Belts Safety Belts: They Are for Everyone This part of the manual tells you how to use safety belts properly. It also tells you some things you should not do with safety belts. {CAUTION: A safety belt - 2008 Hummer H3 | Owner's Manual - Page 15
can survive and sometimes walk away. Without belts they could have been badly hurt or killed. After more than 40 years of safety belts in vehicles, the facts are clear. In most crashes buckling up does matter...a lot! {CAUTION: It is extremely dangerous to ride in a cargo area, inside or outside - 2008 Hummer H3 | Owner's Manual - Page 16
Why Safety Belts Work When you ride in or on anything, you go as fast as it goes. Put someone on it. Take the simplest vehicle. Suppose it is just a seat on wheels. 1-12 - 2008 Hummer H3 | Owner's Manual - Page 17
Get it up to speed. Then stop the vehicle. The rider does not stop. The person keeps going until stopped by something. In a real vehicle, it could be the windshield... 1-13 - 2008 Hummer H3 | Owner's Manual - Page 18
or the instrument panel... or the safety belts! With safety belts, you slow down as the vehicle does. You get more time to stop. You stop over more distance, and your strongest bones take the forces. That is why safety belts make such good sense. 1-14 - 2008 Hummer H3 | Owner's Manual - Page 19
hurt. Being a good driver does not protect you from things beyond your control, such as bad drivers. Most accidents occur within 25 miles (40 km) can unbuckle a safety belt, even if you are upside down. Q: If my vehicle has airbags, why should I have to wear safety belts? A: Airbags are - 2008 Hummer H3 | Owner's Manual - Page 20
size. Be aware that there are special things to know about safety belts and children. And there are different rules for smaller children and babies. If a child will be riding in your vehicle the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. The - 2008 Hummer H3 | Owner's Manual - Page 21
your shoulder belt is too loose. In a crash, you would move forward too much, which could increase injury. The shoulder belt should fit snugly against your body. A: The shoulder belt is too loose. It will not give nearly as much protection this way. 1-17 - 2008 Hummer H3 | Owner's Manual - Page 22
Q: What is wrong with this? {CAUTION: You can be seriously hurt if your lap belt is too loose. In a crash, you could slide under the lap belt and apply force on your abdomen. This could cause serious or even fatal injuries. The lap belt should be worn low and snug on the hips, just touching the - 2008 Hummer H3 | Owner's Manual - Page 23
Q: What is wrong with this? {CAUTION: You can be seriously injured if your belt is buckled in the wrong place like this. In a crash, the belt would go up over your abdomen. The belt forces would be there, not on the pelvic bones. This could cause serious internal injuries. Always buckle your belt - 2008 Hummer H3 | Owner's Manual - Page 24
Q: What is wrong with this? {CAUTION: You can be seriously injured if your belt goes over an armrest like this. The belt would be much too high. In a crash, you can slide under the belt. The belt force would then be applied on the abdomen, not on the pelvic bones, and that could cause serious or - 2008 Hummer H3 | Owner's Manual - Page 25
Q: What is wrong with this? {CAUTION: You can be seriously injured if you wear the shoulder belt under your arm. In a crash, your body would move too far forward, which would increase the chance of head and neck injury. Also, the belt would apply too much force to the - 2008 Hummer H3 | Owner's Manual - Page 26
wearing the lap-shoulder belt properly. In a crash, you would not be restrained by the shoulder belt. Your body could move too far forward increasing the chance of head and neck injury. You might also slide under the lap over the shoulder and across the chest. A: The belt is behind the body. 1-22 - 2008 Hummer H3 | Owner's Manual - Page 27
. If a belt is twisted, make it straight so it can work properly, or ask your dealer/retailer to fix it. A: The belt is twisted across the body. 1-23 - 2008 Hummer H3 | Owner's Manual - Page 28
Lap-Shoulder Belt All seating positions in your vehicle have a lap-shoulder belt. Here is how to wear a lap-shoulder belt properly. 1. Adjust the seat, if the seat is adjustable, so you can sit - 2008 Hummer H3 | Owner's Manual - Page 29
5. To make the lap part tight, pull up on the shoulder belt. It may be necessary to pull stitching plate up the safety belt webbing. The latch plate should rest on the stitching on the safety belt, near the guide loop on the side wall. Before you close a door, be sure the belt is out of the way. If - 2008 Hummer H3 | Owner's Manual - Page 30
can move the height adjuster up just by pushing up on the shoulder belt guide. Safety Belt Pretensioners Your vehicle has safety belt pretensioners for front outboard occupants. Although you cannot see them, they are part of the safety belt assembly. They can help tighten the safety belts during - 2008 Hummer H3 | Owner's Manual - Page 31
each outboard passenger position in the rear seat. Here is how to install a comfort guide to the safety belt: 2. Place the guide over the belt and insert the two edges of the belt into the slots of the guide. 1. Pull the elastic cord out from between the edge of the seatback and the - 2008 Hummer H3 | Owner's Manual - Page 32
in a crash. The person wearing the belt could be seriously injured. The shoulder belt should go over the shoulder and across the chest. These parts of the body are best able to take belt restraining forces. 3. Be sure that the belt is not twisted and it lies flat. The elastic cord must - 2008 Hummer H3 | Owner's Manual - Page 33
together so that you can take them out of the guide. Pull the guide upward to expose its storage clip, and then slide the guide onto the clip. Turn the guide and clip inward and slide them in between the seatback and the interior body, leaving only the loop of the elastic cord exposed. A pregnant - 2008 Hummer H3 | Owner's Manual - Page 34
Safety Belt Extender If the vehicle's safety belt will fasten around you, you should use it. But if wear it, attach it to the regular safety belt. For more information, see the instruction sheet that comes with the extender. Child Restraints Older Children Older children who have outgrown booster seats - 2008 Hummer H3 | Owner's Manual - Page 35
's instructions that other people who are buckled up, or can be thrown out of the vehicle. Older children need to use safety belts properly. • Sit all the . If no, try using the rear safety belt comfort guide. See "Rear Safety Belt Comfort Guides" under Lap-Shoulder Belt on page 1-24 for more - 2008 Hummer H3 | Owner's Manual - Page 36
used by only one person at a time. {CAUTION: Never do this. Here a child is sitting in a seat that has a lap-shoulder belt, but the shoulder part is behind the child. In a crash, the child would not be restrained by the shoulder belt. The child might slide under the lap belt. The - 2008 Hummer H3 | Owner's Manual - Page 37
belts alone; they need to use a child restraint. Infants and Young Children Everyone in a vehicle needs protection! This includes infants and all other children. Neither the distance traveled nor the age and size of the traveler changes the need, for everyone, to use safety restraints. In fact, the - 2008 Hummer H3 | Owner's Manual - Page 38
{CAUTION: People should never hold an infant in their arms while riding in a vehicle. An infant does not weigh much - until a crash. During a crash an infant will become so heavy it is not possible to hold it. For example, - 2008 Hummer H3 | Owner's Manual - Page 39
or killed. Airbags plus lap-shoulder belts offer protection for adults and older children, but not for young children and infants. Neither the vehicle's safety belt system nor its airbag system is designed for them. Young children and infants need the protection that a child restraint system can - 2008 Hummer H3 | Owner's Manual - Page 40
, there are many different models available. When purchasing a child restraint, be sure it is designed to be used in a motor vehicle. If it is, the restraint will have a label saying that it meets federal motor vehicle safety standards. The restraint manufacturer's instructions that come with the - 2008 Hummer H3 | Owner's Manual - Page 41
child's hip bones are still so small that the vehicle's regular safety belt may not remain low on the hip bones, as it should. Instead, it may settle up around the child's abdomen. In a crash, the belt would apply force on a body area that is unprotected by any bony structure. This alone - 2008 Hummer H3 | Owner's Manual - Page 42
A forward-facing child seat (B) provides restraint for the child's body with the harness. A booster seat (C-D) is a child restraint designed to improve the fit of the vehicle's safety belt system. A booster seat can also help a child to see out the window. 1-38 - 2008 Hummer H3 | Owner's Manual - Page 43
. Make sure the child restraint is properly installed in the vehicle using the vehicle's safety belt or LATCH system, following the instructions that came with that restraint, and also the instructions in this manual. To help reduce the chance of injury, the child restraint must be secured in - 2008 Hummer H3 | Owner's Manual - Page 44
in a crash if the child is not properly secured in the child restraint. Because there are different systems, it is important to refer to the instructions that come with the restraint. Make sure the child is properly secured, following the - 2008 Hummer H3 | Owner's Manual - Page 45
1-62 for additional information. When securing a child restraint in a rear seating position, study the instructions that came with your child restraint to make sure it is compatible with this vehicle. Wherever you install a child restraint, be sure to secure the child restraint properly. Keep in - 2008 Hummer H3 | Owner's Manual - Page 46
-compatible child restraint is properly installed using the anchors, or use the vehicle's safety belts to secure the restraint, following the instructions that came with that restraint, and also the instructions in this manual. When installing a child restraint with a top tether, you must also use - 2008 Hummer H3 | Owner's Manual - Page 47
, and that the tether be attached. Be sure to read and follow the instructions for your child restraint. If the child restraint does not have a top tether anchors the top of the child restraint to the vehicle. A top tether anchor is built into the vehicle. The top tether attachment (B) on the child - 2008 Hummer H3 | Owner's Manual - Page 48
seatbacks. Be sure to use an anchor located on the same side of the vehicle as the seating position where the child restraint will be placed. Do not or local law requires that the top tether be attached, or if the instructions that come with the child restraint say that the top tether must be - 2008 Hummer H3 | Owner's Manual - Page 49
, the child could be seriously injured or killed. Make sure that a LATCH-type child restraint is properly installed using the anchors, or use the vehicle's safety belts to secure the restraint, following the instructions that came with that restraint, and also the instructions in this manual. 1-45 - 2008 Hummer H3 | Owner's Manual - Page 50
instructions of the child restraint manufacturer. Notice: Contact between the child restraint LATCH attachment parts and the vehicle's safety belt assembly may cause damage to these parts to your child restraint manufacturer instructions and the instructions in this manual. 1.1. Find the lower - 2008 Hummer H3 | Owner's Manual - Page 51
and the following steps: 2.1. Find the top tether anchor. 2.2. Route, attach and tighten the top tether according to your child restraint instructions and the following instructions: If the position you are using does not have a headrest or head restraint and you are using a single tether, route the - 2008 Hummer H3 | Owner's Manual - Page 52
the child restraint on the seat. 2. Pick up the latch plate, and run the lap and shoulder portions of the vehicle's safety belt through or around the restraint. The child restraint instructions will show you how. 3. Push and pull the child restraint in different directions to be sure it is secure - 2008 Hummer H3 | Owner's Manual - Page 53
3. Push the latch plate into the buckle until it clicks. Make sure the release button is positioned so you would be able to unbuckle the safety belt quickly if necessary. 4. Pull the rest of the shoulder belt all the way out of the retractor to set the lock. 1-49 - 2008 Hummer H3 | Owner's Manual - Page 54
is secure. To remove the child restraint, unbuckle the vehicle's safety belt and let it go back all the way. center seat position is too narrow for your child restraint, secure it in a rear outside seat position. If you secure a child restraint in the center seat position, follow the instructions - 2008 Hummer H3 | Owner's Manual - Page 55
rear seat is a safer place to secure a forward-facing child restraint. See Where to Put the Restraint on page 1-40. In addition, your vehicle has a passenger sensing system which is designed to turn off the right front passenger's frontal airbag under certain conditions. See Passenger Sensing System - 2008 Hummer H3 | Owner's Manual - Page 56
the child restraint on the seat. 3. Pick up the latch plate, and run the lap and shoulder portions of the vehicle's safety belt through or around the restraint. The child restraint instructions will show you how. 4. Push the latch plate into the buckle until it clicks. Make sure the release button - 2008 Hummer H3 | Owner's Manual - Page 57
it is secure. If the airbag is off, the off indicator in the passenger airbag status indicator will come on and stay on when the vehicle is started. 1-53 - 2008 Hummer H3 | Owner's Manual - Page 58
seated directly behind the right front passenger. All of the airbags in your vehicle will have the word AIRBAG embossed in the trim or on an attached For frontal airbags, the word AIRBAG will appear on the middle part of the steering wheel for the driver and on the instrument panel for the right - 2008 Hummer H3 | Owner's Manual - Page 59
wearing your safety belt - even if you have airbags. Wearing your safety belt during a crash helps reduce your chance of hitting things inside the vehicle or being ejected from it. Airbags are "supplemental restraints" to the safety belts. All airbags are designed to work with safety belts, but do - 2008 Hummer H3 | Owner's Manual - Page 60
with airbags. The driver should sit as far back as possible while still maintaining control of the vehicle. Occupants should not lean on or sleep against the door or side windows in tells you if there is an electrical problem. See Airbag Readiness Light on page 3-29 for more information. 1-56 - 2008 Hummer H3 | Owner's Manual - Page 61
Where Are the Airbags? The right front passenger's frontal airbag is in the instrument panel on the passenger's side. The driver's frontal airbag is in the middle of the steering wheel. 1-57 - 2008 Hummer H3 | Owner's Manual - Page 62
and an airbag, and do not attach or put anything on the steering wheel hub or on or near any other airbag covering. If your vehicle has roof-rail airbags, never secure anything to the roof of your vehicle by routing the rope or tie down through any door or window opening. If - 2008 Hummer H3 | Owner's Manual - Page 63
to be in time for the airbags to inflate and help restrain the occupants. Whether your frontal airbags will or should deploy is not based on how fast your vehicle is traveling. It depends largely on what you hit, the direction of the impact, and how quickly your - 2008 Hummer H3 | Owner's Manual - Page 64
are all part of the airbag module. Frontal airbag modules are located inside the steering wheel and instrument panel. For vehicles with vehicle. Airbags supplement the protection provided by safety belts. Frontal airbags distribute the force of the impact more evenly over the occupant's upper body - 2008 Hummer H3 | Owner's Manual - Page 65
second rows windshield or being able to steer the vehicle, nor does it prevent people from leaving the vehicle. {CAUTION: When an airbag inflates, there may be dust in the air. This dust could cause breathing problems for people with a history of asthma or other breathing trouble 60. The parts of the - 2008 Hummer H3 | Owner's Manual - Page 66
windshields are broken by vehicle deformation. Additional windshield breakage may also occur from the right front passenger airbag. Passenger Sensing System Your vehicle and possibly other parts. The service manual for your vehicle covers the need to replace other parts. • Your vehicle has a crash - 2008 Hummer H3 | Owner's Manual - Page 67
turn off the right front passenger's frontal airbag under certain conditions. The driver's airbags are not part of the passenger sensing system. The passenger sensing system works with sensors that are part of the right front passenger's seat and safety belt. The sensors are designed to detect the - 2008 Hummer H3 | Owner's Manual - Page 68
installed and the on indicator is lit, turn the vehicle off. Remove the child restraint from the vehicle and reinstall the child restraint following the child restraint manufacturer child restraints. • Or, if there is a critical problem with the airbag system or the passenger sensing system. 1-64 - 2008 Hummer H3 | Owner's Manual - Page 69
the system senses that a person of adult size is sitting properly in the right front the person's seating posture and body build. Everyone in your vehicle who has outgrown child restraints seat, centered on the seat cushion, with the person's legs comfortably extended. Restart the vehicle and have - 2008 Hummer H3 | Owner's Manual - Page 70
ever comes on and stays on, it means that something may be wrong with the airbag system. If this ever happens, have the vehicle serviced promptly, because an adult-size person sitting in the right front passenger's seat may not have the protection of the airbag(s). See Airbag Readiness Light on page - 2008 Hummer H3 | Owner's Manual - Page 71
affect how your vehicle should be serviced. There are parts of the airbag system in several places around your vehicle. Your dealer/retailer and the service manual have information about servicing your vehicle and the airbag system. To purchase a service manual, see Service Publications Ordering - 2008 Hummer H3 | Owner's Manual - Page 72
, see Different Size Tires and Wheels on page 5-73 for additional important information. A: Yes. If you add things that change your vehicle's frame, bumper system, height, front end or side sheet metal, they may keep the airbag system from working properly. Changing or moving any parts of the front - 2008 Hummer H3 | Owner's Manual - Page 73
, latch plates, retractors and anchorages are working properly. Look for any other loose or damaged safety belt system parts. If you see anything that might keep a safety belt system from doing its job, have it repaired. an Airbag Inflate? on page 1-60. See your dealer/retailer for service. 1-69 - 2008 Hummer H3 | Owner's Manual - Page 74
damaged. See your dealer/retailer to have your safety belt assemblies inspected or replaced. If your vehicle has the LATCH system and it was being used during a crash, you may need new LATCH system parts. New parts and repairs may be necessary even if the belt or LATCH system (if equipped), was not - 2008 Hummer H3 | Owner's Manual - Page 75
Vehicle ...2-18 New Vehicle Break-In ...2-18 Ignition Positions ...2-18 Retained Accessory Power (RAP) ...2-20 Starting the Engine ...2-20 Engine Coolant Heater ...2-22 Automatic Transmission Operation ...2-23 Manual Transmission Operation ...2-26 Full-Time Four-Wheel Drive ...2-27 Parking Brake - 2008 Hummer H3 | Owner's Manual - Page 76
Section 2 Features and Controls Storage Areas ...2-56 Glove Box ...2-56 Cupholder(s) ...2-56 Front Seat Storage Net ...2-57 Front Armrest Storage Area ...2-57 Luggage Carrier ...2-57 Rear Storage Area ...2-59 - 2008 Hummer H3 | Owner's Manual - Page 77
. They could operate the power windows or other controls or even make the vehicle move. The windows will function with the keys in a vehicle with children. Use the double-sided key for the ignition and driver's door lock. When a new vehicle is delivered, the dealer/retailer provides the owner with - 2008 Hummer H3 | Owner's Manual - Page 78
. Take a few steps to the left or right, hold the transmitter higher, and try again. • Check to determine if battery replacement is necessary. See "Battery Replacement" later in this section. • If you are still having trouble, see your dealer/retailer or a qualified technician for service. 2-4 - 2008 Hummer H3 | Owner's Manual - Page 79
feedback modes can be programmed through the Driver Information Center (DIC). See "Remote Keyless Entry Feedback" under seconds. To turn them off, do one of these three things: wait for 30 seconds; press the panic button again; or start the vehicle. Press the unlock button again within three seconds - 2008 Hummer H3 | Owner's Manual - Page 80
location. If you have to get close to your vehicle before the transmitter works, it is probably time to change the battery. Notice: When replacing the battery, use care not to touch any of the circuitry. Static from your body transferred to these surfaces may damage the transmitter. 1. Insert a coin - 2008 Hummer H3 | Owner's Manual - Page 81
even death from heat stroke. Always lock your vehicle whenever you leave it. • Outsiders can easily enter through an unlocked door when you slow down or stop your vehicle. Locking your doors can help prevent this from happening. From the inside, use the manual lock levers or power door lock switch - 2008 Hummer H3 | Owner's Manual - Page 82
of PARK (P). All the doors will unlock when the shift lever is moved back into PARK (P). If your vehicle has a manual transmission, it is programmed from the factory to lock the doors automatically when the vehicle speed is greater than 15 mph (24 km/h). The doors will unlock when the key is removed - 2008 Hummer H3 | Owner's Manual - Page 83
vertical position. 3. Close the door. 4. Repeat these steps on the other rear door. Lockout Protection This feature protects you from locking your key in the vehicle when the key is in the ignition and a door is open. To engage the security locks, do the following: 1. Open one of the rear doors - 2008 Hummer H3 | Owner's Manual - Page 84
remote keyless entry transmitter. {CAUTION: Make sure the swing-gate is completely closed. Driving with the swing-gate open could injure pedestrians or damage the vehicle. To open the swing-gate, pull the door handle. Pull the swing-gate rearward slightly and it will automatically open. 2-10 - 2008 Hummer H3 | Owner's Manual - Page 85
children, helpless adults, or pets in a vehicle with the windows closed is dangerous. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke. Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm - 2008 Hummer H3 | Owner's Manual - Page 86
in the path of a closing window. Do not leave keys in a vehicle with children. When there are children in the rear seat use the window ACC (Accessory) or ON, or when Retained Accessory Power (RAP) is active. See Retained Accessory Power (RAP) on page 2-20. Pull up the front edge of the control to - 2008 Hummer H3 | Owner's Manual - Page 87
block glare, pull the visor down. It can also be detached from the center mount and moved to the side to block glare from that direction. There that can be pulled out for further coverage. Visor Vanity Mirror Your vehicle has a vanity mirror located on the driver's and passenger's visor. Window - 2008 Hummer H3 | Owner's Manual - Page 88
will sound the horn at reduced intensity for 10 seconds. Then, the front turn signal lamps will fl will then turn off to save battery power. Starting the engine with the correct key will shut arm the theft-deterrent system, the vehicle should be locked with the manual door lock lever, the power door - 2008 Hummer H3 | Owner's Manual - Page 89
you turn the engine off. However, your Passlock® system is not working properly and must be serviced by your dealer/retailer. Your vehicle is not protected by Passlock® at this time. See your dealer/retailer for service. In an emergency, call the Roadside Assistance Center. See Roadside Assistance - 2008 Hummer H3 | Owner's Manual - Page 90
with Part 15 service facility control unit in your vehicle. Only the correct key will start the vehicle. If the key is ever damaged, you may not be able to start your vehicle. When trying to start the vehicle, if the engine does not start and the security light comes on, there may be a problem - 2008 Hummer H3 | Owner's Manual - Page 91
to LOCK/OFF, and remove the key. 4. Insert the second current driver's key in the ignition and start the engine within ten seconds of removing the previous key. If the engine will not start see your dealer/retailer for service. 5. After the engine has started, turn the key to LOCK/OFF, and remove - 2008 Hummer H3 | Owner's Manual - Page 92
steering wheel on manual transmission vehicles when the key is removed. It is a theft-deterrent feature. You will only be able to remove your key when the ignition is turned to LOCK/OFF. • Do not tow a trailer during break-in. See Towing a Trailer on page 4-50 for the trailer towing capabilities - 2008 Hummer H3 | Owner's Manual - Page 93
or items plugged into the accessory power outlets. On automatic transmission vehicles, this position unlocks the ignition. On manual transmission vehicles, it unlocks the ignition and steering wheel. Use this position if your vehicle must be pushed or towed. (C) ON/RUN: This is the position - 2008 Hummer H3 | Owner's Manual - Page 94
PARK (P) only when your vehicle is stopped. These features will work when the key is in ON/RUN or ACC/ACCESSORY. Once the key is Manual Transmission The shift lever should be in neutral position and the parking brake engaged. Hold the clutch pedal down to the floor and start the engine. Your vehicle - 2008 Hummer H3 | Owner's Manual - Page 95
in your vehicle. If you add electrical parts or accessories, you could change the way the engine operates. Before adding electrical equipment, check with your dealer/retailer. If you do not, your engine might not perform properly. Any resulting damage would not be covered by your vehicle's warranty - 2008 Hummer H3 | Owner's Manual - Page 96
particular area. To Use the Engine Coolant Heater 1. Turn off the engine. 2. Open the hood and unwrap the electrical cord. The cord is located in the engine compartment behind the underhood fuse block on the driver's side of the vehicle. 3. Plug it into a normal, grounded 110-volt AC outlet. 2-22 - 2008 Hummer H3 | Owner's Manual - Page 97
trailer, see Towing a Trailer on page 4-50. Make sure the shift lever is fully in PARK (P) before starting the engine. Your vehicle has an automatic transmission shift lock control system. You must fully apply your regular brakes drain on your battery which could discharge your battery over a period - 2008 Hummer H3 | Owner's Manual - Page 98
with the wheels. To restart when you are already moving, use NEUTRAL (N) only. {CAUTION: Shifting into a drive gear while the engine is running at high speed is dangerous. Unless your foot is firmly on the brake pedal, your vehicle could move very rapidly. You could lose control and hit people - 2008 Hummer H3 | Owner's Manual - Page 99
on hilly, winding roads, when towing a trailer, so there is less shifting between gears and when going down a steep hill. SECOND (2): This position reduces vehicle speed even more than THIRD (3) without using your brakes. You can use SECOND (2) on hills. It can help control your speed as you go - 2008 Hummer H3 | Owner's Manual - Page 100
warranty. Shift to REVERSE (R) only after your vehicle is stopped. Use REVERSE (R), along with the parking brake, for parking your vehicle. Here is how to operate your manual into FIRST (1). SECOND (2): Press the clutch pedal as you let up on the accelerator pedal and shift into SECOND (2). Then, - 2008 Hummer H3 | Owner's Manual - Page 101
could lose control of your vehicle. You vehicle has four-wheel drive and has a manual transmission, disregard the shift light when the transfer case is in four-wheel low. For more information, see Up-Shift Light on page 3-32. Full-Time Four-Wheel Drive Full-Time Four-Wheel Drive sends your engine - 2008 Hummer H3 | Owner's Manual - Page 102
or variable off-road conditions. N (NEUTRAL): Shift the vehicle's transfer case to NEUTRAL only when towing your vehicle. See Recreational Vehicle Towing on page 4-48 or Towing Your Vehicle on page 4-48 for more information. Notice: Operating your vehicle in Four-Wheel-Low Lock above 30 mph (48 km - 2008 Hummer H3 | Owner's Manual - Page 103
is complete. If for some reason the transfer case cannot make a requested shift, it will return to the last chosen setting. If the SERV 4WD message on the Driver Information Center (DIC) stays on, you should take your vehicle to your dealer for service. See Service 4WD message under DIC Warnings and - 2008 Hummer H3 | Owner's Manual - Page 104
: 1. Set the parking brake. 2. Start the vehicle by turning the ignition to START. 3. Put the transmission in NEUTRAL (N). If your vehicle has a manual transmission, press and hold the clutch pedal down while you perform Steps 5 through 9. 4. Shift the transfer case to Four-Wheel High. 2-30 - 2008 Hummer H3 | Owner's Manual - Page 105
brake pedal. 2. Shift the transmission to NEUTRAL (N) for an automatic transmission, or press the clutch pedal for vehicles that have a manual transmission. Then turn the ignition to ON with the engine off. 3. Press the button for the desired transfer case shift position (Four-Wheel High, Four-Wheel - 2008 Hummer H3 | Owner's Manual - Page 106
go off. Notice: Driving with the parking brake on can overheat the brake system and cause premature wear or damage to brake system parts. Make sure that the parking brake is fully released and the brake warning light is off before driving. If you are towing a trailer and are parking on any hill, see - 2008 Hummer H3 | Owner's Manual - Page 107
have left the engine running, the vehicle can move suddenly. You or others could be injured. To be sure your vehicle will not move, even when you are on fairly level ground, use the steps that follow. If you are pulling a trailer, see Towing a Trailer on page 4-50. 1. Hold the brake pedal down with - 2008 Hummer H3 | Owner's Manual - Page 108
and even catch fire. You or others could be injured. Do not leave your vehicle with the engine running. If you have to leave your vehicle with the engine running, be sure your vehicle is in PARK (P) and your parking brake is firmly set before you leave it. After you have moved the shift lever into - 2008 Hummer H3 | Owner's Manual - Page 109
the ignition is in ON/RUN and the regular brake pedal is applied. The shift lock control system is always functional except in the case of a dead battery or low voltage (less than 9 V) battery. If your vehicle has an uncharged battery or a battery with low voltage, try charging or jump starting the - 2008 Hummer H3 | Owner's Manual - Page 110
Exhaust {CAUTION: Things that can burn could touch hot exhaust parts under your vehicle and ignite. Do not park over papers, leaves, dry grass, or other things that can burn. {CAUTION: Engine exhaust can kill. It contains the gas carbon monoxide (CO), which you cannot see or smell. It can cause - 2008 Hummer H3 | Owner's Manual - Page 111
Into PARK (P) (Automatic Transmission) on page 2-33 and Parking Your Vehicle (Manual Transmission) on page 2-35. If you are pulling a trailer with your vehicle, see Towing a Trailer on page 4-50. {CAUTION: Idling the engine with the climate control system off could allow dangerous exhaust into your - 2008 Hummer H3 | Owner's Manual - Page 112
reading and the outside temperature. Control buttons for the OnStar system are at the the services OnStar® provides. ® Slide-Out Video Feature Enable Press and hold Y for three seconds to briefly or wait 30 seconds to end cleaning. The screen will then retract. Your vehicle may also have a Rear - 2008 Hummer H3 | Owner's Manual - Page 113
next to the OnStar® control buttons to turn the compass/temperature display on or off. If CAL is not displayed, press and hold Y for 15 seconds, or until CAL each time the ignition goes through its cycle. • At start up, if the vehicle has been off for less than two and a half hours, and the last - 2008 Hummer H3 | Owner's Manual - Page 114
be necessary to adjust the compass to compensate for compass variance if the vehicle is outside of zone eight. Under certain circumstances, as during a zone number on the following zone map. 2. Press and hold Y for 12 seconds until a zone number appears in the display. The compass is now in zone - 2008 Hummer H3 | Owner's Manual - Page 115
F and C. After approximately five seconds of inactivity, the display will stop blinking and display the last selection made. If an abnormal reading is displayed, see your dealer/retailer. Automatic Dimming Rearview Mirror with Compass and Temperature Display Your vehicle may have this mirror. When - 2008 Hummer H3 | Owner's Manual - Page 116
Compass Calibration The compass may need calibration if one of the following occurs: • If CAL is displayed while driving in the vehicle. • After approximately five seconds, the display does not show a compass heading, N for North, for example, there may be a strong magnetic field interfering with the - 2008 Hummer H3 | Owner's Manual - Page 117
will show a compass direction within a few seconds. To adjust the power mirrors, do direction using the control pad. The mirrors can be manually folded inward to prevent damage when going through an automatic car wash or confined space. Pull the mirror toward the vehicle - 2008 Hummer H3 | Owner's Manual - Page 118
when backing into a parking spot. To turn off the rear vision camera system, do the following: 1. Place the vehicle shift lever in PARK (P). 2. Turn the ignition key to the ACCESSORY position. 3. Press the right mirror button briefly; the right green light indicator will turn off. The rear camera - 2008 Hummer H3 | Owner's Manual - Page 119
manually slide out the rear camera screen for cleaning, do the following: 1. Place the vehicle shift lever in PARK (P). 2. Turn the ignition key to the ACCESSORY button momentarily while the rear camera screen is out or wait 30 seconds for screen to slide back into the mirror. For more information - 2008 Hummer H3 | Owner's Manual - Page 120
. The area displayed on the screen may vary according to vehicle orientation or road conditions. Notice: The spare tire extends farther away from rear of the vehicle than the trailer hitch shown on rear vision camera display. Your spare tire could hit an object even though there appears to be enough - 2008 Hummer H3 | Owner's Manual - Page 121
else builds up on the camera lens. Clean the lens, rinse it with water, and wipe it with a soft cloth. • If the back of the vehicle is in an accident, the position and mounting angle of the camera may change or the camera may be affected. Be sure to have the - 2008 Hummer H3 | Owner's Manual - Page 122
, 7 days a week. Not all OnStar features are available on all vehicles. To check if your vehicle is equipped to provide the services described below, or for a full description of OnStar services and system limitations, see the OnStar Owner's Guide in your glove box or visit onstar.com. OnStar uses - 2008 Hummer H3 | Owner's Manual - Page 123
Minute Packages. Hands-Free Calling may also be linked to a Verizon Wireless service plan in the U.S. or a Bell Mobility service plan in Canada, depending on eligibility. To find out more, refer to the OnStar Owner's Guide in the vehicle's glove box, visit www.onstar.com or www.onstar.ca, or speak - 2008 Hummer H3 | Owner's Manual - Page 124
system (including adequate battery power) for the OnStar equipment to operate. There are other problems OnStar cannot control that may prevent OnStar from providing OnStar service to you at any particular time or place. Some examples are damage to important parts of your vehicle in an accident - 2008 Hummer H3 | Owner's Manual - Page 125
. You can always press the blue OnStar button to confirm that your OnStar equipment is active. This device complies with Part 15 of the FCC Rules. or modifications to this system by other than an authorized service facility could void authorization to use this equipment. Universal Home Remote - 2008 Hummer H3 | Owner's Manual - Page 126
It is also recommended that upon the sale of the vehicle, the programmed Universal Home Remote buttons the instructions below. This system provides a way to replace up to three remote control transmitters is recommended that a new battery be installed in your hand-held transmitter for quicker and more - 2008 Hummer H3 | Owner's Manual - Page 127
Do not hold down the buttons for longer than 30 seconds and do not repeat this step to program the remaining Home Remote button that you would like to use to control the garage door and the hand-held transmitter button. both buttons. 1. From inside the vehicle, press and hold down the two outside - 2008 Hummer H3 | Owner's Manual - Page 128
through 8 and can stop here. If the Universal Home Remote indicator light blinks rapidly for two seconds and then turns to a constant light, continue with the programming Steps 6 through 8. It ). Locate the "Learn" or "Smart" button. The name and color of the button may vary by manufacturer. 2-54 - 2008 Hummer H3 | Owner's Manual - Page 129
"Smart" button. After you press this button, you will have 30 seconds to complete Step 8. 8. Immediately return to the vehicle. Firmly press and hold the Universal Home Remote button, chosen in Step 3 to control the garage door, for two seconds, and then release it. If the garage door does not move - 2008 Hummer H3 | Owner's Manual - Page 130
outside buttons until the indicator light begins to flash, after 20 seconds. 2. Release both buttons. Your vehicle may have two cupholders in front of the front armrest storage area. You may also have a cupholder in the center of the rear bench seat. Pull down on the lid to open the cupholder. 2-56 - 2008 Hummer H3 | Owner's Manual - Page 131
to accommodate various cargo sizes. Notice: Loading cargo on the luggage carrier that weighs more than 250 lbs. (113 kg) or hangs over the rear or sides of the vehicle may damage your vehicle. Load cargo only on top of the crossrails and tie the cargo down to the crossrail support cargo tie-down - 2008 Hummer H3 | Owner's Manual - Page 132
2. Remove the end cap. 3. Pull the lever labeled "PULL" from left to right to loosen the crossrail. 4. Repeat "PULL" from right to left to lock the crossrail in place. 7. Reinstall end cap and lock by turning the key clockwise. 8. Repeat Steps 5 through 7 to the opposite end of the crossrail. 2- - 2008 Hummer H3 | Owner's Manual - Page 133
past the opening of the sunroof and loading cargo too far forward. Your vehicle may have cargo tie downs. Once you load the cargo onto the crossrails, The repairs would not be covered by your warranty. Never put anything on top of the cargo cover. If your vehicle has a cargo cover, you can use it - 2008 Hummer H3 | Owner's Manual - Page 134
must be on, or Retained Accessory Power (RAP) must be active. See Retained Accessory Power (RAP) on page 2- sunshade automatically opens with the sunroof, but can be manually pulled shut after the sunroof is closed. To adjust of the switch. An air deflector raises when the sunroof is fully opened. Press - 2008 Hummer H3 | Owner's Manual - Page 135
...3-33 Antilock Brake System Warning Light ...3-34 Traction Off Light ...3-34 StabiliTrak® Not Ready Light ...3-34 Engine Coolant Temperature Gage ...3-35 Tire Pressure Light ...3-35 Instrument Panel Overview ...3-4 Hazard Warning Flashers ...3-6 Other Warning Devices ...3-6 Horn ...3-6 Tilt Wheel - 2008 Hummer H3 | Owner's Manual - Page 136
Antenna System ...3-62 Malfunction Indicator Lamp ...3-36 Oil Pressure Light ...3-38 Security Light ...3-39 Cruise Control Light ...3-39 Highbeam On Light ...3-39 Fuel Gage ...3-40 Driver Information Center (DIC) ...3-40 DIC Operation and Displays ...3-40 DIC Warnings and Messages ...3-43 3-2 - 2008 Hummer H3 | Owner's Manual - Page 137
✍ NOTES 3-3 - 2008 Hummer H3 | Owner's Manual - Page 138
Instrument Panel Overview Automatic Transmission shown, Manual Transmission similar 3-4 - 2008 Hummer H3 | Owner's Manual - Page 139
Windshield Washer on page 3-10. Cruise Controls. See Cruise Control on page 3-11. C. Horn. See Horn on page 3-6. D. Instrument Panel Cluster. See Instrument Panel Cluster on page 3-26. E. Hazard Warning Flasher Button. See Hazard Warning Flashers on page 3-6. F. All-Wheel Drive, Passenger Air Bag - 2008 Hummer H3 | Owner's Manual - Page 140
you have a problem. The front and rear turn signal lamps will flash on and off. The hazard warning flasher button is located towards the center of the instrument up at the side of the road about 300 feet (100 m) behind your vehicle. Horn Press the button to make the front and rear turn signal lamps fl - 2008 Hummer H3 | Owner's Manual - Page 141
Wheel A tilt wheel allows the steering wheel to be adjusted before driving. It can be raised to allow more room for the driver to enter and exit the vehicle Windshield Wipers. See Windshield Wipers on • L Windshield Washer. See Windshield Washer on page 3-10. • J Cruise Control. See Cruise Control - 2008 Hummer H3 | Owner's Manual - Page 142
a turn or a lane change, if the arrows flash more quickly than normal, a signal bulb may be burned out and other drivers will not see your vehicle's turn signal. If a bulb is burned out, replace it to help avoid an accident. If the arrows do not go on at all when signaling - 2008 Hummer H3 | Owner's Manual - Page 143
Headlamp High/Low-Beam Changer 53 (Headlamp High/Low Beam Changer): To change the headlamps from low to high beam, push the lever toward the instrument panel. To return to low-beam headlamps, pull the multifunction lever toward you. Then release it. When the high beams are on, this indicator light - 2008 Hummer H3 | Owner's Manual - Page 144
Wipers You control the windshield wipers by turning the band with the wiper symbol on it. Windshield wipers work in all power modes, except when set to LOCK. After the engine is turned off, wipers will work in Retained Accessory Power (RAP) mode until a door is opened. See Retained Accessory Power - 2008 Hummer H3 | Owner's Manual - Page 145
can really help on long trips. Cruise control does not work at speeds below about windshield washer. If the windshield can be washed, but not the rear windows, check the fluid level. R (On): This position activates the system. + (Resume/Accelerate): Move the lever to this symbol to make the vehicle - 2008 Hummer H3 | Owner's Manual - Page 146
roads, fast changes in tire traction can cause excessive wheel slip, and you could lose control. Do not use cruise control on slippery roads. The cruise control disengages, if the vehicle has the Traction Control System (TCS) and it begins to limit wheel spin. See Traction Control System (TCS) on - 2008 Hummer H3 | Owner's Manual - Page 147
apply the brake. Do not hold the switch at resume/ accelerate, unless you want the vehicle to go faster. Increasing Speed While Using Cruise Control There are higher speed. If the accelerator pedal is held longer than 60 seconds, cruise control will turn off. • Move the cruise switch from on to - 2008 Hummer H3 | Owner's Manual - Page 148
then release it. When going downhill, you might have to brake or shift to a lower gear to keep the vehicle speed down. Of course, applying the brake turns off the cruise control. Many drivers find this to be too much trouble and do not use cruise control on steep hills. • To slow down in very small - 2008 Hummer H3 | Owner's Manual - Page 149
of the following: O (Off): Turn the knob to this position to turn off all exterior lamps, including the Daytime Running Lamps (DRL). This is a momentary control that springs back to AUTO when released. Vehicles first sold in Canada do not have the DRL disable feature available. • Turn the headlamp - 2008 Hummer H3 | Owner's Manual - Page 150
gear position is in PARK (P) and the headlamp switch is turned to the Off position. Vehicles first sold in Canada with a manual transmission can turn off the automatic headlamps with the headlamp control; however, the parking lamps will remain on. Headlamps on Reminder A headlamp reminder chime will - 2008 Hummer H3 | Owner's Manual - Page 151
longer than the delay. 3-17 • The ignition is on. • The exterior lamps control is in AUTO. • The transmission is not in PARK (P) if you have an The instrument panel will not be lit up either. For vehicles first sold in Canada, if parking lamps are manually turned on, DRL will stay on. When it begins - 2008 Hummer H3 | Owner's Manual - Page 152
. In some states it may be necessary to remove the roof lamps when operating the vehicle on the highway. The switches for the off-road lamps are located in the center of the instrument panel below the climate controls. One switch is used for the front lower-grille mounted off-road lamps, if - 2008 Hummer H3 | Owner's Manual - Page 153
door is opened. The dome lamps are located in the cargo and front area of the vehicle. The dome and footwell lamps can be turned on by turning the thumbwheel, located next to the exterior lamps control, all the way up. In this position, the lamps remain on whether a door is opened - 2008 Hummer H3 | Owner's Manual - Page 154
vehicle has a voltmeter gage, you may see the voltage move up or down. This is normal. If there is a problem, an alert will be displayed. The battery defogger, climate control fan at high speed, heated seats, engine cooling fans, trailer loads, and loads plugged into accessory power outlets. Exit - 2008 Hummer H3 | Owner's Manual - Page 155
cellular telephone or CB radio. Your vehicle has two accessory power outlets located on the lower part of the instrument panel below the climate control system and there may be one located in the rear cargo area. A small cap must be pulled down to access an accessory power outlet. When not using an - 2008 Hummer H3 | Owner's Manual - Page 156
the left knob on the control panel to adjust the temperature of the air in the vehicle. Turn the knob clockwise or counterclockwise to increase or decrease the temperature. # (Air Conditioning): Press the center of the left knob on the control panel to turn the air conditioning system on or off - 2008 Hummer H3 | Owner's Manual - Page 157
times and then turns off. A slight change in engine performance may occur when the air conditioning compressor shuts off and turns on again. This is this airflow from occurring. @ (Recirculation): Press the center of the fan control knob to recirculate air inside the vehicle and prevent outside air - 2008 Hummer H3 | Owner's Manual - Page 158
if the climate control system is used properly. There are two modes to clear fog or frost from the windshield and side windows. warranty. Do not attach a temporary vehicle license, tape, a decal or anything similar to the defogger grid. Outlet Adjustment Use the air outlets located in the center - 2008 Hummer H3 | Owner's Manual - Page 159
with the warning lights and gages. See Driver Information Center (DIC) on page 3-40 for more information. • Clear away any ice, snow or leaves from the air • • inlets at the base of the windshield that may block the flow of air into your vehicle. Use of non-GM approved hood deflectors may adversely - 2008 Hummer H3 | Owner's Manual - Page 160
Instrument Panel Cluster Your instrument panel cluster is designed to let you know at a glance how your vehicle is running. You will know how fast you are going, about how much fuel you have used, and many other things you will need to - 2008 Hummer H3 | Owner's Manual - Page 161
more information. 3.7L L5 Shown, 5.3L V8 Similar Notice: If you operate the engine with the tachometer in the shaded warning area, your vehicle could be damaged, and the damages would not be covered by your warranty. Do not operate the engine with the tachometer in the shaded warning area. 3-27 - 2008 Hummer H3 | Owner's Manual - Page 162
seconds, then it will flash for several more. Passenger Safety Belt Reminder Light Several seconds after the engine is started, a chime will sound for several seconds unbuckled and the vehicle is in motion. This chime and light is repeated if the driver remains unbuckled and the vehicle is in motion - 2008 Hummer H3 | Owner's Manual - Page 163
others, have your vehicle serviced right away if the airbag readiness light stays on after you start your vehicle. The airbag readiness light should flash for a few seconds when you start the engine. If the light does not come on then, have it fixed immediately. If there is a problem with the airbag - 2008 Hummer H3 | Owner's Manual - Page 164
the airbag is turned on. United States Canada When you start the vehicle, the passenger airbag status indicator will light ON and OFF, or the symbol for on and off, for several seconds as a system check. Then, after several more seconds, the status indicator will light either ON or OFF, or either - 2008 Hummer H3 | Owner's Manual - Page 165
seconds, both status indicator lights remain on, or if there are no lights at all, there may be a problem with the lights or the passenger sensing system. See your dealer/retailer for service this ever happens, have the vehicle serviced promptly, because an adult-size person sitting in the right - 2008 Hummer H3 | Owner's Manual - Page 166
it is working. Up-Shift Light Your vehicle may have an up-shift light. It should go out once the engine is running. If it stays on, or comes on while you are driving, you may have a problem with the charging system. A charging system Driver Information Center (DIC) message may also appear. See DIC - 2008 Hummer H3 | Owner's Manual - Page 167
is a problem. Your brake system may not be working properly if the brake system warning light is on. Driving with the brake system warning light on can lead to an accident. If the light is still on after you have pulled off the road and stopped carefully, have the vehicle towed for service. 3-33 - 2008 Hummer H3 | Owner's Manual - Page 168
, but you do not have antilock brakes. If the regular brake system warning light is also on, you do not have antilock brakes and there is a problem with your regular brakes. See Brake System Warning Light on page 3-33 For vehicles with a Driver Information Center (DIC), see DIC Warnings and Messages - 2008 Hummer H3 | Owner's Manual - Page 169
. If a problem is detected with the Tire Pressure Monitor System, this light will flash for approximately 60 seconds and then stay on solid for the remainder of the ignition cycle. See Tire Pressure Monitor System on page 5-63 for more information. 3-35 This gage shows the engine coolant temperature - 2008 Hummer H3 | Owner's Manual - Page 170
OBD II problem and service is required. Notice: Modifications made to the engine, transmission, exhaust, intake, or fuel system of your vehicle or the replacement of the original tires with other than those of the same Tire Performance Criteria (TPC) can affect your vehicle's emission controls and - 2008 Hummer H3 | Owner's Manual - Page 171
problems that might have developed. 3-37 Reduce vehicle speed. Avoid hard accelerations. Avoid steep uphill grades. If you are towing a trailer do so, stop the vehicle. Find a safe place to park the vehicle. Turn the ignition off, wait at least 10 seconds, and restart the engine. If the light - 2008 Hummer H3 | Owner's Manual - Page 172
your oil as soon as possible and have your vehicle serviced. Notice: Lack of proper engine oil maintenance may damage the engine. The repairs would not be covered by your warranty. Always follow the maintenance schedule in this manual for changing engine oil. This light will come on briefly when you - 2008 Hummer H3 | Owner's Manual - Page 173
For information regarding this light and the vehicle's security system, see Content Theft-Deterrent on page 2-14. Highbeam On Light This light comes on when the high-beam headlamps are in use. Cruise Control Light This light comes on whenever you set the cruise control. See Headlamp High/Low-Beam - 2008 Hummer H3 | Owner's Manual - Page 174
Center (DIC) comes on when the ignition is on. If a problem is detected, a warning message appears on the display. Pressing and releasing the trip odometer reset stem on the DIC acknowledges some current warnings or service that some owners ask about. None of these indicate a problem with your - 2008 Hummer H3 | Owner's Manual - Page 175
shows the total distance the vehicle has been driven in either miles for the United States or kilometers for Canada. In addition to the engine oil life system monitoring the oil life, additional maintenance is recommended in the Maintenance Schedule in this manual. See Engine Oil on page 5-15 and - 2008 Hummer H3 | Owner's Manual - Page 176
preferred setting. To set your choice for this feature: 1. With the engine off, turn the key to LOCK/OFF. Do not remove the key driver's door when the vehicle is shifted into PARK (P). On vehicles with a manual transmission, this mode locks all of the doors when the vehicle speed is greater than - 2008 Hummer H3 | Owner's Manual - Page 177
DIC to notify the driver that the status of the vehicle has changed and that some action may be needed by one after another. The messages are displayed for several seconds each. Some messages may not require immediate action, not correct the problem. The following are the possible messages that can - 2008 Hummer H3 | Owner's Manual - Page 178
AC (Air Conditioning) OFF This message displays when the engine coolant temperature is too high and the air conditioning in your vehicle needs to be turned off. See Engine Overheating on page 5-29 and Climate Control System on page 3-22 for more information. This message displays along with the ENG - 2008 Hummer H3 | Owner's Manual - Page 179
fluid as soon as possible and have your vehicle serviced by your dealer/retailer. See Brakes on page 5-38 for more information. Press and release the reset stem to acknowledge the message and clear it from the display. LOW TIRE This message displays if a low tire pressure is detected in any of the - 2008 Hummer H3 | Owner's Manual - Page 180
if your vehicle needs service. Have your vehicle serviced by your dealer/retailer as soon as possible. SERV (Service) 4WD (Four-Wheel Drive) This message displays when there is a problem with the transfer case control system. Check the transfer case on your vehicle and have it serviced by your - 2008 Hummer H3 | Owner's Manual - Page 181
The battery will not be charging at an optimal rate and the vehicle will lose the ability to enter the fuel economy mode. The vehicle is safe problem with the Traction Control System (TCS). Check the TCS as soon as possible and have your vehicle serviced by your dealer/retailer. See Traction Control - 2008 Hummer H3 | Owner's Manual - Page 182
, when driving conditions permit, you can tune to your favorite radio stations using the presets and steering wheel controls if the vehicle has them. Notice: Before adding any sound equipment to your vehicle, such as an audio system, CD player, CB radio, mobile telephone, or two-way radio, make sure - 2008 Hummer H3 | Owner's Manual - Page 183
Radio(s) Radio with Six-Disc CD Player Radio with Single CD Your vehicle has one of these radios as its audio system. 3-49 - 2008 Hummer H3 | Owner's Manual - Page 184
until you see the desired display, then hold this knob for two seconds. The radio produces one beep and the selected display becomes the more volume compensation at faster vehicle speeds. Then as you drive, automatic volume increases the volume, as necessary, to overcome noise at any 3-50 Press - 2008 Hummer H3 | Owner's Manual - Page 185
™ Satellite Radio Service): If the current station has a message, the information symbol displays. Press to see the message. The message can display the artist, song title, call in phone numbers, etc. If the entire message is not displayed, parts of the message appears every three seconds. To scroll - 2008 Hummer H3 | Owner's Manual - Page 186
controls to the middle position, press and hold when no tone or speaker control is displayed. CEN or ALL CENTERED manual mode, press and release the e knob until MANUAL displays. For the Radio with Six-Disc CD Player, the equalization one through seven options are included only if your vehicle - 2008 Hummer H3 | Owner's Manual - Page 187
again for two seconds. AF OFF displays. The radio does not switch to other stations. This function does not apply for XM™ Satellite Radio Service. • For the when the THEFTLOCK® system has locked up. Take your vehicle to your dealer/retailer for service. If any error occurs repeatedly or if an error - 2008 Hummer H3 | Owner's Manual - Page 188
Service XM™ is a satellite radio service that is based your vehicle. A service fee is required to receive the XM™ service. an adapter ring. Full-size CDs and the smaller CDs their original cases or other protective cases and away from wiping process starts from the center to the edge. Radio Messages - 2008 Hummer H3 | Owner's Manual - Page 189
If an error displays, see "CD Messages" later in this section. For vehicles that have a radio with a Six-Disc CD player, see the following: following: 1. Turn the ignition on. 2. Press and hold the LOAD button for two seconds. A beep sounds and the indicator light, located to the right of the slot, - 2008 Hummer H3 | Owner's Manual - Page 190
eject a CD after you have tried to push it in manually. The player's 25-second eject timer resets at each press of the eject button, causing button. To eject multiple CDs, do the following: 1. Press and hold for five seconds. A beep sounds and the indicator light, located to the right of the slot, begins - 2008 Hummer H3 | Owner's Manual - Page 191
displays. Press again to turn off repeat play. RPT OFFdisplays. • To repeat the CD you are listening to, press and hold this button for two seconds. RPT ON displays. Press again to turn off repeat play. RPT OFF displays. 4 y (Random) (Radio with Single CD): Press to hear the tracks in random - 2008 Hummer H3 | Owner's Manual - Page 192
, press until you see the desired display, then hold for two seconds. The radio produces one beep and the selected display becomes the default track into memory. When this button is pressed, one beep sounds. After two seconds of continuously pressing this button, two beeps sounds to confirm the track - 2008 Hummer H3 | Owner's Manual - Page 193
3. Press either SEEK arrow to select the desired track to be deleted. 4. Press and hold the R button for two seconds. When this button is pressed, one beep sounds. After two seconds of continuously pressing this button, two beeps sound to confirm that the track has been deleted. After a track has - 2008 Hummer H3 | Owner's Manual - Page 194
vehicle is moved into an open area, the signal should return. Loading XM: The audio system is acquiring and processing audio and text data. No action is needed. This message should disappear shortly. CH Off Air: This channel is not currently in service could have been a problem while burning the CD. - 2008 Hummer H3 | Owner's Manual - Page 195
vehicle may have previously been in another vehicle. For security purposes, XM™ receivers cannot be swapped between vehicles. If this message is received after having your vehicle serviced chargers, vehicle convenience accessories, and external electronic devices are plugged into the accessory power - 2008 Hummer H3 | Owner's Manual - Page 196
occasionally to make sure the mast is still tightened to its base. If tightening is required, tighten by hand, then with vehicle can interfere with the performance of the XM™ system. Make sure the XM™ Satellite Radio antenna is not obstructed. XM™ Satellite Radio Service XM™ Satellite Radio Service - 2008 Hummer H3 | Owner's Manual - Page 197
42 Towing ...4-48 Towing Your Vehicle ...4-48 Recreational Vehicle Towing ...4-48 Towing a Trailer ...4-50 Trailer Recommendations ...4-62 Your Driving, the Road, and Your Vehicle ...4-2 Defensive Driving ...4-2 Drunk Driving ...4-2 Control of a Vehicle ...4-3 Braking ...4-3 Antilock Brake System - 2008 Hummer H3 | Owner's Manual - Page 198
. Police records show that almost 40 percent of all motor vehicle-related deaths involve alcohol. In most cases, these deaths are the result of someone who was drinking and driving. In recent years, more than 17,000 annual motor vehicle-related deaths have been associated with the use of alcohol - 2008 Hummer H3 | Owner's Manual - Page 199
- brakes, steering, and accelerator. At times, as when driving on snow or ice, it is easy to ask more of those control systems than the tires and road can provide. Meaning, you can lose control of your vehicle. See Traction Control System (TCS) on page 4-5. Adding non-dealer/non-retailer accessories - 2008 Hummer H3 | Owner's Manual - Page 200
(ABS), an advanced electronic braking system that will help prevent a braking skid. When you start the engine and begin to drive away, ABS will check itself. You might hear a momentary motor or clicking noise while this test is going on. This is normal. If there is a problem with ABS, this warning - 2008 Hummer H3 | Owner's Manual - Page 201
re-engage the cruise control. See Cruise Control on page 3-11. If your vehicle has a Driver information Center (DIC), a TRACTION FAULT message will appear when a Traction Control System or Anti-Lock Brake System problem has been detected and the vehicle needs service. See DIC Warnings and Messages - 2008 Hummer H3 | Owner's Manual - Page 202
steep hills and uneven terrain. This light will come on steady when the traction control system has been turned off. This light flashes when TCS is active. The button used to turn this feature on or off is located to the right of the transfer case buttons on the center of the instrument panel. 4-6 - 2008 Hummer H3 | Owner's Manual - Page 203
the wheel speed is greater than 20 mph (32 km/h), if the vehicle's battery is low and/or the transfer case is shifted out of 4LO Lock mode. Notice: If you lock the rear axle while driving on pavement, you could damage your vehicle's drivetrain. The repairs would not be covered by your warranty. Do - 2008 Hummer H3 | Owner's Manual - Page 204
whenever you start your vehicle. However, when the transfer case is placed in Four-Wheel-Low Lock mode, StabiliTrak® is automatically disabled. See Full-Time Four-Wheel Drive on page 2-27 for more information. To help assist you with directional control of the vehicle, you should always leave - 2008 Hummer H3 | Owner's Manual - Page 205
. Adding non-dealer/non-retailer accessories can affect your vehicle's performance. See Accessories and Modifications on page 5-3. Steering in Emergencies There are times when steering can be more effective than braking. For example, you come over a hill and find a truck stopped in your lane, or - 2008 Hummer H3 | Owner's Manual - Page 206
to one-quarter turn until the right front tire contacts the pavement edge. Then turn the steering wheel to go straight down the roadway. Loss of Control Let us review what driving experts say about what happens when the three control systems - brakes, steering, and acceleration - do not have enough - 2008 Hummer H3 | Owner's Manual - Page 207
are always possible. The three types of skids correspond to your vehicle's three control systems. In the braking skid, the wheels are not rolling. In the steering or cornering skid, too much speed or steering in a curve causes tires to slip and lose cornering force. And in the acceleration skid - 2008 Hummer H3 | Owner's Manual - Page 208
guide is meant to provide advice for when you drive your vehicle off paved roads. Also, see Braking have all necessary maintenance and service work done. Check to vehicle. Be sure you read all the information about your four-wheel-drive vehicle in this manual. Is there enough fuel? Is the spare tire - 2008 Hummer H3 | Owner's Manual - Page 209
loads on the roof raise the vehicle's center of gravity, making it more likely to roll over. You can be seriously or fatally injured if the vehicle rolls over. Put heavy loads inside other important information in this manual. See Loading Your Vehicle on page 4-42 and Tires on page 5-54. • • 4-13 - 2008 Hummer H3 | Owner's Manual - Page 210
vehicle. If something happens to one of them, the other can help quickly. Does your vehicle have a winch? If so, be sure to read the winch instructions wheel-spinning center of gravity. • Take extreme care with open fires (where permitted), camp stoves, and lanterns. • Never park your vehicle - 2008 Hummer H3 | Owner's Manual - Page 211
Your vehicle has an approximate approach angle (A) of 37.5 degrees and a departure angle (B) of 35.5 degrees, depending on suspension packages. 4-15 - 2008 Hummer H3 | Owner's Manual - Page 212
gradeability of 60% (31 degrees) slope, with the vehicle fully loaded, on high friction surfaces with maximum vehicle speed not to exceed 6 mph (9.7 km/h). The vehicle is expected to traverse this grade only for short durations. Never stop and idle the vehicle or park it on this grade. Also, your - 2008 Hummer H3 | Owner's Manual - Page 213
the engine. 2. Select the proper transmission and transfer case gear range; usually FIRST (1) gear, Four-Wheel-Low Lock for such obstacles. 3. If wheel spin is experienced, maintain steady throttle, with your foot off the brake pedal, to allow the Traction Control System (TCS) to control the wheel - 2008 Hummer H3 | Owner's Manual - Page 214
brakes. 2. Assess the terrain properly and adjust vehicle speed and gear ranges accordingly: Four-Wheel High position for higher speeds and Four-Wheel- tire or engine sounds. With your arms, hands, feet, and body, you will need to respond to vibrations and vehicle bounce. Controlling your vehicle - 2008 Hummer H3 | Owner's Manual - Page 215
Each of these surfaces affects the steering, acceleration, and braking of your vehicle in different ways. Depending upon the kind of surface you are on, , the wheels can leave the ground. If this happens, even with one or two wheels, you cannot control the vehicle as well or at all. 4- - 2008 Hummer H3 | Owner's Manual - Page 216
it is especially important to avoid sudden acceleration, sudden turns, or sudden braking. In a way, off-road driving requires a different kind of alertness washes, coast in, using the engine as a brake (transmission and transfer case lowest gears). Then, use the low ranges in the transmission and - 2008 Hummer H3 | Owner's Manual - Page 217
25.4 cm) in diameter. Approach the log at approximately a 15 degree angle (A) with the transmission in FIRST (1) and the transfer case in Four-Wheel-Low Lock and "walk" your vehicle over, one tire at a time. It may be necessary to modulate your brake pedal and accelerator to avoid spin-out. Ease the - 2008 Hummer H3 | Owner's Manual - Page 218
in places? • Is there good traction on the hillside, or will the surface cause tire slipping? • Is there a straight path up or down the hill so you will not are simply too steep for any vehicle. If you drive up them, you will stall. If you drive down them, you cannot control your speed. If you drive - 2008 Hummer H3 | Owner's Manual - Page 219
always try to go straight up. • Use transmission and transfer case low gear and get a firm grip on the steering wheel. • Get a smooth start up the hill and try covered by your vehicle warranty. • Ease up on your speed as you approach the top of the hill. • Attach a flag to the vehicle to make you - 2008 Hummer H3 | Owner's Manual - Page 220
: • Use your headlamps even during the day. They make your vehicle more visible to oncoming traffic. • Push the brake pedal to stop the vehicle and keep it from rolling backwards. Also, apply the parking brake. • If your engine is still running, shift the transmission to {CAUTION: Driving to the - 2008 Hummer H3 | Owner's Manual - Page 221
are going to leave your vehicle, set the parking brake and shift the transmission to PARK (P), or, put the manual transmission in FIRST (1). But do not shift the transfer case to NEUTRAL. Leave the transfer case in the Four-Wheel High, Four-Wheel-High Lock, or Four-Wheel-Low Lock position. • Never - 2008 Hummer H3 | Owner's Manual - Page 222
things: • How steep is the downhill? Will I be able to maintain vehicle control? If you decide you can go down a hill safely, then try to keep your vehicle headed straight down, and use a low gear. This way, engine drag can help your brakes and they will not have to do all the work. Descend slowly - 2008 Hummer H3 | Owner's Manual - Page 223
you ignore them, you could lose control and have a serious accident: Driving -wheeling." Your brakes will have to do all the work and could overheat and fade. Your vehicle is of the wheel base - the distance from the front wheels to the rear wheels - reduces the likelihood the vehicle will tumble - 2008 Hummer H3 | Owner's Manual - Page 224
be a problem when you drive across a hill. Loose gravel, muddy spots, or even wet grass can cause your tires to slip sideways, downhill. If the vehicle slips across a rock with the uphill wheels, or if the downhill wheels drop into a rut or depression, your vehicle can tilt even more. For reasons - 2008 Hummer H3 | Owner's Manual - Page 225
loosely packed sand, such as on beaches or sand dunes, your tires will tend to sink into the sand. This has an effect on steering, accelerating, and braking. Drive at a reduced speed and avoid sharp turns or abrupt maneuvers. If your vehicle stalls when you are crossing an incline, be sure you, and - 2008 Hummer H3 | Owner's Manual - Page 226
you drive through it. If it is deep enough to cover your wheel hubs, axles, or exhaust pipe, do not try it - you probably will not get through. Also, water that deep can damage your axle and other vehicle parts. Your vehicle is capable of depths up to 20 inches (50 cm). Know how - 2008 Hummer H3 | Owner's Manual - Page 227
wheels, tires, and exhaust system for damage. Also, check the fuel lines and cooling system for any leakage. Your vehicle will require more frequent service by your vehicle's warranty. Always brake linings cleaned and checked. These substances can cause glazing and uneven braking. Check the engine - 2008 Hummer H3 | Owner's Manual - Page 228
alcohol or drugs, with night vision problems, or by fatigue. Night driving tips include: Watch for animals. When tired, pull off the road. Do not wear sunglasses. Avoid staring directly into approaching headlamps. Keep the windshield and all glass on your vehicle clean - inside and out. curves - 2008 Hummer H3 | Owner's Manual - Page 229
could lose control of the vehicle. After driving through a large puddle of water or a car/vehicle wash, lightly apply the brake pedal until the brakes work windshield wiping equipment in good shape. Keep the windshield washer fluid reservoir filled. Have good tires with proper tread depth. See Tires - 2008 Hummer H3 | Owner's Manual - Page 230
tired or sleepy, find a safe place to park your vehicle and rest. Other driving tips include: • Windshield Washer Fluid: Reservoir full? Windows clean - inside and outside? Wiper Blades: In good shape? Fuel, Engine vehicle serviced and in good shape. • Check all fluid levels and brakes, tires, - 2008 Hummer H3 | Owner's Manual - Page 231
poor braking or even none going down a hill. You could crash. Always have the engine running and your vehicle in gear when you go downhill. • Have your vehicle these items in your vehicle. Also see Tires on page 5-54. • Stay in your own lane. Do not swing wide or cut across the center of the road. - 2008 Hummer H3 | Owner's Manual - Page 232
if there is snow or ice between the tires and the road, you can have a very and hard to drive on. But wet ice can be even more trouble because it can offer the least traction of all. You can to help maintain vehicle motion at lower speeds. See Traction Control System (TCS) on page 4-5 and StabiliTrak® - 2008 Hummer H3 | Owner's Manual - Page 233
stopping sooner than you would on dry pavement. See Antilock Brake System (ABS) on page 4-4. If You Are Caught in a Blizzard If you are stopped by heavy snow, you could be in a serious situation. You should probably stay with your vehicle unless you know for sure that you are near help and - 2008 Hummer H3 | Owner's Manual - Page 234
saves fuel. When you run the engine, make it go a little faster than just idle. That is, push the accelerator slightly. This uses less fuel for the heat that you get and it keeps the battery charged. You will need a well-charged battery to restart the vehicle, and possibly for signaling later on - 2008 Hummer H3 | Owner's Manual - Page 235
hour or so until help comes. {CAUTION: If you let your vehicle's tires spin at high speed, they can explode, and you or others could be injured. The vehicle can overheat, causing an engine compartment fire or other damage. Spin the wheels as little as possible and avoid going above 35 mph (55 km - 2008 Hummer H3 | Owner's Manual - Page 236
when the transmission is in gear. By slowly spinning the wheels in the forward and reverse directions, you will cause a rocking motion that could free your vehicle. If that does not get your vehicle out after a few tries, it might need to be towed out. Or, you can use the recovery loops. If your - 2008 Hummer H3 | Owner's Manual - Page 237
Your vehicle has two recovery loops at the front of the vehicle and one at the rear of the vehicle. Rear of Vehicle You may need to use them if you are stuck off-road and need to be pulled to some place where you can continue driving. Front of Vehicle 4-41 - 2008 Hummer H3 | Owner's Manual - Page 238
of all occupants, cargo and all nonfactory-installed options. Two labels on your vehicle show how much weight it may properly carry, the Tire and Loading Information label and the Certification/Tire label. {CAUTION: If your vehicle has a brush guard, never tow or apply any loads onto the brush guard - 2008 Hummer H3 | Owner's Manual - Page 239
size of your vehicle's original equipment tires (C) and the recommended cold tire inflation pressures (D). For more information on tires and inflation see Tires on page 5-54 and Inflation - Tire Example A vehicle specific Tire and Loading Information label is attached to the vehicle's center pillar (B- - 2008 Hummer H3 | Owner's Manual - Page 240
not safely exceed the available cargo and luggage load capacity calculated in Step 4. 6. If your vehicle will be towing a trailer, the load from your trailer will be transferred to your vehicle. Consult this manual to determine how this reduces the available cargo and luggage load capacity of your - 2008 Hummer H3 | Owner's Manual - Page 241
Weight 150 lbs (68 kg) x 5 = Available Cargo Weight = Total 1,000 lbs (453 kg) 750 lbs (340 kg) 250 lbs (113 kg) Item A B C Description Vehicle Capacity Weight for Example 3 = Subtract Occupant Weight 200 lbs (91 kg) x 5 = Available Cargo Weight = Total 1,000 lbs (453 kg) 1,000 lbs (453 kg - 2008 Hummer H3 | Owner's Manual - Page 242
weight of the driver, passengers, cargo and any accessories or equipment added to your vehicle after it left the factory should never exceed your vehicle's capacity weight. Certification/Tire Label Label Example The label shows the Gross Vehicle Weight Rating (GVWR). The GVWR includes the weight - 2008 Hummer H3 | Owner's Manual - Page 243
rear Gross Axle Weight Rating (GAWR). If you do, parts on your vehicle can break, and it can change the way your vehicle handles. These could cause you to lose control and crash. Also, overloading can shorten the life of your vehicle. Using heavier suspension components to get added durability might - 2008 Hummer H3 | Owner's Manual - Page 244
towing are known as "dinghy towing" (towing your vehicle with all four wheels on the ground) and "dolly towing" (towing your vehicle with two wheels on the ground and two wheels up on a device known as a "dolly"). • Do you have the proper towing equipment? See your dealer/retailer or trailering - 2008 Hummer H3 | Owner's Manual - Page 245
the parking brake only after the vehicle being towed is firmly attached to the towing vehicle. 8. Turn the ignition off. After towing, see "Shifting Out of NEUTRAL" under Full-Time Four-Wheel Drive on page 2-27. {CAUTION: Shifting a full-time four-wheel-drive vehicle's transfer case into NEUTRAL - 2008 Hummer H3 | Owner's Manual - Page 246
result in costly repairs not covered by your warranty. To pull a trailer correctly, follow the advice in this part, and see your dealer for important information about towing a trailer with your vehicle. To identify the trailering capacity of your vehicle, you should read the information in "Weight - 2008 Hummer H3 | Owner's Manual - Page 247
sway control. See "Hitches" later in this section. • Don't tow a trailer at all during the first 500 miles (800 km) your new vehicle is driven. Your engine, axle or other parts could be damaged. • The weight of the trailer • The weight of the trailer tongue • And the weight on your vehicle's tires - 2008 Hummer H3 | Owner's Manual - Page 248
. The weight of additional optional equipment, passengers and cargo in the tow vehicle must be subtracted from the maximum trailer weight. Use the following chart to determine how much your vehicle can weigh, based upon your vehicle model and options. Maximum Trailer Weight 4,500 lbs (2 041 - 2008 Hummer H3 | Owner's Manual - Page 249
people who will be riding in the vehicle. If you have a lot of options, equipment, passengers or cargo in your vehicle, it will reduce the tongue weight your vehicle can carry, which will also reduce the trailer weight your vehicle can tow. If you will tow a trailer, you must add the tongue load to - 2008 Hummer H3 | Owner's Manual - Page 250
trucks going by and rough roads are a few reasons why you'll need the right hitch. (A) Body-to-Ground Distance (B) Front of Vehicle When using a weight-distributing hitch, the hitch must be adjusted so that the distance (A) remains the same both before and after coupling the trailer to the tow - 2008 Hummer H3 | Owner's Manual - Page 251
: A vehicle model base weight is 5,500 lbs (2 495 kg); 2,800 lbs (1 270 kg) at the front axle and 2,700 lbs (1 225 kg) at the rear axle. It has a GVWR of 7,200 lbs (3 266 kg), a RGAWR of 4,000 lbs (1 814 kg) and a GCWR (Gross Combination Weight Rating) of 14,000 lbs (6 350 kg). The trailer - 2008 Hummer H3 | Owner's Manual - Page 252
you start, check all trailer hitch parts and attachments, safety chains, electrical connector, lamps, tires and mirror adjustment. If the trailer has electric brakes, start your vehicle and trailer moving and then apply the trailer brake controller by hand to be sure the brakes are working. This - 2008 Hummer H3 | Owner's Manual - Page 253
You'll need more passing distance up ahead when you're towing a trailer. Because you're a good deal longer, you'll need to go much farther beyond the passed vehicle before you can return to your lane. Turn Signals When Towing a Trailer The arrows on your instrument panel will flash whenever you - 2008 Hummer H3 | Owner's Manual - Page 254
, and both your vehicle and the trailer can be damaged. But if you ever have to park your rig on a hill, here's how to do it: 1. Apply your regular brakes, but don't shift into PARK (P) yet for an automatic transmission, or into gear for a manual transmission. Turn your wheels into the curb if - 2008 Hummer H3 | Owner's Manual - Page 255
a Hill 1. Apply your regular brakes and hold the pedal down while you: Trailer Wiring Harness Light-Duty Trailer Wiring Package If your vehicle is not equipped with a trailer towing package, the chassis harness will contain the following blunt cut circuits: • start your engine, • shift into a gear - 2008 Hummer H3 | Owner's Manual - Page 256
Yellow: Left Stop/Turn Signal Dark Green: Right Stop/Turn Signal Brown: Taillamps White: Ground Light Green: Back-up Lamps Red: Battery Feed Dark Blue: Trailer Brake If you are charging a remote (non-vehicle) battery, turn on the headlamps to boost the vehicle system voltage to properly charge the - 2008 Hummer H3 | Owner's Manual - Page 257
need to tow a light-duty trailer with a standard four-way, flat pin connector, an adapter is available from your dealer/retailer. Use this adapter to connect a standard four-way pin connector to the seven-wire harness on your vehicle. Connect the adapter with the tab pointing up. The flip cap on the - 2008 Hummer H3 | Owner's Manual - Page 258
vehicle without the spring bars in place. You'll get the best performance if you spread out the weight of your load the right way, and if you choose the correct hitch and trailer brakes. For more information see Towing a Trailer on page 4-50. Red Wire: AUX B+ Black Wire: Ground Light Blue Wire - 2008 Hummer H3 | Owner's Manual - Page 259
Service and Appearance Care Engine Coolant ...5-27 Radiator Pressure Cap ...5-29 Engine Overheating ...5-29 Cooling System ...5-31 Engine Fan Noise ...5-36 Power Steering Fluid ...5-36 Windshield Washer Fluid ...5-37 Brakes ...5-38 Battery ...5-41 Jump Starting ...5-42 Rear Axle ...5-45 Four-Wheel - 2008 Hummer H3 | Owner's Manual - Page 260
...5-100 Vehicle Identification Number (VIN) ...5-100 Service Parts Identification Label ...5-101 Electrical System ...5-101 Add-On Electrical Equipment ...5-101 Windshield Wiper Fuses ...5-101 Power Windows and Other Power Options ...5-102 Fuses and Circuit Breakers ...5-102 Engine Compartment Fuse - 2008 Hummer H3 | Owner's Manual - Page 261
/retailer. You will receive genuine GM parts and GM-trained and supported service people. Genuine GM parts have one of these marks: Accessories and Modifications When non-dealer/non-retailer accessories are added to your vehicle they can affect your vehicle's performance and safety, including such - 2008 Hummer H3 | Owner's Manual - Page 262
fasteners, parts can later break or fall off. You could be hurt. If you want to do some of your own service work, you should use the proper service manual. It tells you much more about how to service your vehicle than this manual can. To order the proper service manual, see Service Publications - 2008 Hummer H3 | Owner's Manual - Page 263
and you hear heavy knocking, the engine needs service. Adding Equipment to the Outside of Your Vehicle Things you might add to the outside of your vehicle can affect the airflow around it. This can cause wind noise and can affect fuel economy and windshield washer performance. Check with your dealer - 2008 Hummer H3 | Owner's Manual - Page 264
not be covered by your warranty. Additives To provide cleaner air, all gasolines in the United States are now required to contain additives that help prevent engine and fuel system deposits from forming, allowing the emission control system to work properly. In most cases, you should not have to - 2008 Hummer H3 | Owner's Manual - Page 265
for those fuels. Notice: Your vehicle was not designed for fuel that contains methanol. Do not use fuel containing methanol. It can corrode metal parts in the fuel system and also damage plastic and rubber parts. That damage would not be covered under your warranty. Some gasolines that are not - 2008 Hummer H3 | Owner's Manual - Page 266
the instructions on the pump island. Turn off your engine when you are refueling. Do not smoke if you are near fuel or refueling your vehicle. Do fuel pump unattended when refueling your vehicle. This is against the law in some places. Do not re-enter the vehicle while pumping fuel. Keep children - 2008 Hummer H3 | Owner's Manual - Page 267
any hiss noise to stop. Then unscrew the cap all the way. Be careful not to spill fuel. Do not top off or overfill the tank and wait a few seconds after you have finished pumping before removing the nozzle. Clean fuel from painted surfaces as soon as possible. See Washing Your Vehicle on - 2008 Hummer H3 | Owner's Manual - Page 268
occurs. To help avoid injury to you and others: • Dispense fuel only into approved containers. • Do not fill a container while it is inside a vehicle, in a vehicle's trunk, pickup bed, or on any surface other than the ground. CAUTION: (Continued) • Bring the fill nozzle in contact with the inside of - 2008 Hummer H3 | Owner's Manual - Page 269
inside the vehicle on the engine parts and start a fire. These include liquids like fuel, oil, coolant, brake fluid, windshield engine. 2. Release the secondary latch on the hood. It is located below the front center of the hood. 3. Lift the hood. Before closing the hood, be sure all the filler caps - 2008 Hummer H3 | Owner's Manual - Page 270
Engine Compartment Overview When you open the hood on the 3.7L engine, this is what you will see: 5-12 - 2008 Hummer H3 | Owner's Manual - Page 271
Washer Fluid Reservoir. See "Adding Washer Fluid" under Windshield Washer Fluid on page 5-37. B. Engine Coolant Recovery Tank. See Engine Coolant on page 5-27. C. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter on page 5-20. D. Power Steering Fluid Reservoir. See Power Steering Fluid - 2008 Hummer H3 | Owner's Manual - Page 272
When you open the hood on the 5.3L engine, this is what you will see: 5-14 - 2008 Hummer H3 | Owner's Manual - Page 273
A. Engine Air Cleaner/Filter. See Engine Air Cleaner/Filter on page 5-20. B. Air Filter Restriction Indicator (If Equipped). See Engine Air Cleaner/Filter on page 5-20. C. Windshield Washer Fluid Reservoir. See "Adding Washer Fluid" under Windshield Washer Fluid on page 5-37. D. Engine Coolant - 2008 Hummer H3 | Owner's Manual - Page 274
Compartment Overview on page 5-12 for the location of the engine oil fill cap. If the oil is below the cross-hatched area (L), add at least one quart/liter of the recommended oil. This section explains what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications on - 2008 Hummer H3 | Owner's Manual - Page 275
Standard GM6094M and showing the American Petroleum Institute Certified For Gasoline Engines starburst symbol. Failure to use the recommended oil can result in engine damage not covered by your warranty. • GM6094M Your vehicle's engine requires oil meeting GM Standard GM6094M. Look for and use only - 2008 Hummer H3 | Owner's Manual - Page 276
will perform this work using genuine parts and reset the system. It is Engine Oil Life System When to Change Engine Oil Your vehicle has a computer system that lets you know when to change the engine oil and filter. This is based on engine revolutions and engine temperature, and not on mileage. Based - 2008 Hummer H3 | Owner's Manual - Page 277
comes back on when you start your vehicle, the engine oil life system has not reset. bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of used oil, ask your dealer/retailer, a service station, or a local recycling center - 2008 Hummer H3 | Owner's Manual - Page 278
the Engine Air Cleaner/Filter To inspect or replace the engine air cleaner/filter, do the following: 1. Unfasten the clips that hold the cover on and remove the cover. The engine air cleaner/filter is located in the engine compartment on the passenger's side of the vehicle. See Engine Compartment - 2008 Hummer H3 | Owner's Manual - Page 279
have the air cleaner/filter in place when you are driving. When to Check and Change Automatic Transmission Fluid A good time to check your automatic transmission fluid level is when the engine oil is changed. Change the fluid and filter at the intervals listed in Additional Required Services on page - 2008 Hummer H3 | Owner's Manual - Page 280
as follows: 1. Park your vehicle on a level place. Keep the engine running. 2. With the parking brake applied, place the shift lever in PARK (P). 3. With your foot on the brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, position the - 2008 Hummer H3 | Owner's Manual - Page 281
transmission dipstick handle with this symbol on it is located in the engine compartment on the passenger's side of the vehicle. 3. Check both sides of the dipstick, and read the to lock the dipstick in place. See Engine Compartment Overview on page 5-12 for more information on location. 2. Push it back in - 2008 Hummer H3 | Owner's Manual - Page 282
fluid may damage your vehicle, and the damages may not be covered by your warranty. Always use the automatic transmission fluid listed in Recommended Fluids and Lubricants on page 6-12. Manual Transmission Fluid When to Check A good time to have it checked is when the engine oil is changed. However - 2008 Hummer H3 | Owner's Manual - Page 283
Then, follow these steps: How to Add Fluid Here is how to add fluid. Refer to the Maintenance Schedule to determine what kind of fluid to use. See Recommended Fluids and Lubricants on page 6-12. 1. Remove the filler plug. 2. Add fluid at the filler plug hole. Add only enough fluid to bring the fluid level - 2008 Hummer H3 | Owner's Manual - Page 284
Hydraulic Clutch The hydraulic clutch linkage in your vehicle is self-adjusting. The clutch master cylinder reservoir is filled with hydraulic clutch fluid. The hydraulic clutch fluid reservoir cap has this symbol on it. See Engine Compartment Overview on page 5-12 for reservoir location. When to - 2008 Hummer H3 | Owner's Manual - Page 285
the diaphragm when it is in place in the reservoir. See the instructions on the reservoir cap. A 50/50 mixture of clean, drinkable water and DEX-COOL® coolant will: Engine Coolant The cooling system in your vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in your - 2008 Hummer H3 | Owner's Manual - Page 286
repair cost would not be covered by your warranty. Too much water in the mixture can freeze and crack the engine, radiator, heater core, and other parts. 5-28 The coolant recovery tank cap has this symbol on it. It is located toward the rear of the engine compartment on the passenger's side of the - 2008 Hummer H3 | Owner's Manual - Page 287
pressure cap - even a little - when the engine and air conditioning might stop working if the engine is too hot. This is normal and helps cool the engine. {CAUTION: You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol, and it will burn if the engine parts - 2008 Hummer H3 | Owner's Manual - Page 288
Notice: If your engine catches fire because you keep driving with no coolant, your vehicle can be badly damaged. The costly repairs would not be covered by your warranty. Climb a long hill on a hot day. Stop after high-speed driving. Idle for long periods in traffic. Tow a trailer. See "Driving - 2008 Hummer H3 | Owner's Manual - Page 289
vehicle until it cools down. You may decide not to lift the hood but to get service help right away. Cooling System When you decide it is safe to lift the hood, here is what you will see: 3.7L Engine shown, 5.3L Engine similar A. Coolant Recovery Tank B. Engine Cooling Fan C. Radiator Pressure Cap - 2008 Hummer H3 | Owner's Manual - Page 290
increase when idle speed is doubled by pushing the accelerator pedal down. If it does not, your vehicle needs service. Turn off the engine. Notice: Engine damage from running the engine without coolant is not covered by the warranty. Notice: Using coolant other than DEX-COOL® may cause premature - 2008 Hummer H3 | Owner's Manual - Page 291
. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine. When the coolant in the coolant recovery tank is at the FULL COLD mark, start your vehicle. {CAUTION: Adding only plain water to the cooling system can be dangerous. Plain - 2008 Hummer H3 | Owner's Manual - Page 292
wait for that to stop. A hiss means there is still some pressure left. 2. Keep turning the cap to remove it. 3. Fill the radiator with the proper DEX-COOL® coolant mixture, up to the base of the filler neck. See Engine Coolant on page 5-27 for more information about the proper coolant mixture. 5-34 - 2008 Hummer H3 | Owner's Manual - Page 293
. If the level is lower, add more of the proper DEX-COOL® coolant mixture through the filler neck until the level reaches the base of the filler neck. 8. Then replace the pressure cap. At any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure - 2008 Hummer H3 | Owner's Manual - Page 294
clutch is engaged, the fan spins faster to provide more air to cool the engine. In most everyday driving conditions, the clutch is not engaged. This improves fuel economy and reduces fan noise. Under heavy vehicle loading, trailer towing and/or high outside temperatures, the fan speed increases when - 2008 Hummer H3 | Owner's Manual - Page 295
washer fluid tank and other parts of the washer system. Also, water does not clean as well as washer fluid. Windshield Washer Fluid What to Use When you need windshield washer fluid, be sure to read the manufacturer's instructions before use. If you will be operating your vehicle in an area where the - 2008 Hummer H3 | Owner's Manual - Page 296
: If you have too much brake fluid, it can spill on the engine. The fluid will burn if the engine is hot enough. You or others could be burned, and your vehicle could be damaged. Add brake fluid only when work is done on the brake hydraulic system. See "Checking Brake Fluid" in this section. Refer - 2008 Hummer H3 | Owner's Manual - Page 297
page 6-12. Always clean the brake fluid reservoir cap and the area around the cap before removing it. This helps keep dirt from entering the reservoir. • Using the wrong fluid can badly damage brake hydraulic system parts. For example, just a few drops of mineral-based oil, such as engine oil, in the - 2008 Hummer H3 | Owner's Manual - Page 298
or be heard all the time your vehicle is moving, except when you are pushing on the brake pedal firmly. Properly torqued wheel nuts are necessary to help prevent brake pulsation. When tires are rotated, inspect brake pads for wear and evenly tighten wheel nuts in the proper sequence to torque speci - 2008 Hummer H3 | Owner's Manual - Page 299
many other ways if someone puts in the wrong replacement brake parts. Vehicle Storage {CAUTION: Batteries have acid that can burn you and gas that can battery's label. See Engine Compartment Overview on page 5-12 for battery location. Warning: Battery posts, terminals, and related accessories - 2008 Hummer H3 | Owner's Manual - Page 300
Put an automatic transmission in PARK (P) or a manual transmission in NEUTRAL before setting the parking brake. If you have a four-wheel-drive vehicle, be sure the transfer case is not in NEUTRAL. Notice: If you leave your radio or other accessories on during the jump starting procedure, they could - 2008 Hummer H3 | Owner's Manual - Page 301
has one. Negative (−) will go to a heavy, unpainted metal engine part or to a remote negative (−) terminal if the vehicle has one. Do not connect positive (+) to negative (−) or you will get a short that would damage the battery and maybe other parts too. And do not connect the negative (−) cable to - 2008 Hummer H3 | Owner's Manual - Page 302
the next step. The other end of the negative (−) cable does not go to the dead battery. It goes to a heavy, unpainted metal engine part, or to a remote negative (−) terminal on the vehicle with the dead battery. 9. Connect the other end of the negative (−) cable at least 18 inches (45 cm) away from - 2008 Hummer H3 | Owner's Manual - Page 303
to regularly check rear axle fluid unless you suspect there is a leak or you hear an unusual noise. A fluid loss could indicate a problem. Have it inspected and repaired. To get an accurate reading, the vehicle should be on a level surface. The proper level is from 0 to 3/8 inch (0 mm to 10 mm) below - 2008 Hummer H3 | Owner's Manual - Page 304
that the four-wheel drive transfer case fluid be checked and filled by your dealer. It is recommended that the vehicle is taken to your dealer/retailer for service if the headlamps need to be re-aimed. It is possible however, to re-aim the headlamps as described. The vehicle should: Front Axle - 2008 Hummer H3 | Owner's Manual - Page 305
At a wall, measure from the ground upward the recorded distance from Step 2 and mark it. 5. Draw or tape a horizontal line the width of the vehicle at the wall where it was marked it Step 4. Notice: Do not cover a headlamp to improve beam cut-off when aiming. Covering a headlamp may cause - 2008 Hummer H3 | Owner's Manual - Page 306
Passenger's Side Shown 7. Locate the vertical headlamp aiming screws, which are under the hood near each headlamp assembly. The adjustment screw can be turned with an E8 Torx® socket or T15 Torx® screwdriver. 8. Turn the vertical aiming screw until the headlamp beam is aimed to the horizontal tape - 2008 Hummer H3 | Owner's Manual - Page 307
or others could be injured. Be sure to read and follow the instructions on the bulb package. 3. Turn the bulb socket counterclockwise to remove . 2. Reach in and access the headlamp bulb socket from inside the engine compartment. 4. Unplug the electrical connector by pushing the release tab and - 2008 Hummer H3 | Owner's Manual - Page 308
-gate on page 2-10 for more information. 2. Remove the two screws from the taillamp assembly. Passenger's Side Shown 3. Pull the taillamp assembly away from the vehicle. 5-50 - 2008 Hummer H3 | Owner's Manual - Page 309
the taillamp assembly and turn it clockwise to secure. 8. Reinstall the taillamp assembly by lining up the locator pins with the retainers in the vehicle's body. 9. Reinstall the two screws and tighten. 10. Close the swing-gate. License Plate Lamp To replace one of these bulbs: 1. Reach under the - 2008 Hummer H3 | Owner's Manual - Page 310
Blade Replacement Windshield wiper blades should be inspected for wear and cracking. See Scheduled Maintenance on page 6-4 for more information. Replacement blades come in different types and are removed in different ways. For proper type and length, see Normal Maintenance Replacement Parts on page - 2008 Hummer H3 | Owner's Manual - Page 311
wiper blade assembly do the following: 1. Lift the wiper arm away from the windshield. 2. Push the release lever (B) to disengage the hook and push the wiper arm (A) out of the blade (C). 3. Push the new wiper blade securely on the - 2008 Hummer H3 | Owner's Manual - Page 312
with high-quality tires made by a leading tire manufacturer. If you ever have questions about your tire warranty and where to obtain service, see your vehicle Warranty booklet for details. CAUTION: (Continued) • Underinflated tires pose the same danger as overloaded tires. The resulting accident - 2008 Hummer H3 | Owner's Manual - Page 313
tire sidewall. (A) Tire Size: The tire size code is a combination of letters and numbers used to define a particular tire's width, height, aspect ratio, construction type, and service description. See the "Tire Size" illustration later in this section for more detail. (B) TPC Spec (Tire Performance - 2008 Hummer H3 | Owner's Manual - Page 314
be carried and the maximum pressure needed to support that load. For information on recommended tire pressure see Inflation - Tire Pressure on page 5-62 and Loading Your Vehicle on page 4-42. Light Truck (LT-Metric) Tire (A) Tire Size: The tire size code is a combination of letters and numbers used - 2008 Hummer H3 | Owner's Manual - Page 315
load that can be carried and the maximum pressure needed to support that load when used in a dual configuration. For information on recommended tire pressure see Inflation - Tire Pressure on page 5-62 and Loading Your Vehicle on page 4-42. (D) DOT (Department of Transportation): The Department of - 2008 Hummer H3 | Owner's Manual - Page 316
parts of a tire size. (A) Passenger (P-Metric) Tire: The United States version of a metric tire sizing system. The letter P as the first character in the tire size means a passenger vehicle tire engineered to standards set by the U.S. Tire and Rim Association. (A) Light Truck (LT-Metric) Tire - 2008 Hummer H3 | Owner's Manual - Page 317
each square inch of the tire. Air pressure is expressed in pounds per square inch (psi) or kilopascal (kPa). Accessory Weight: This means the combined weight of optional accessories. Some examples of optional accessories are, automatic transmission, power steering, power brakes, power windows, power - 2008 Hummer H3 | Owner's Manual - Page 318
. The maximum air pressure is molded onto the sidewall. Maximum Load Rating: The load rating for a tire at the maximum permissible inflation pressure for that tire. 5-60 Maximum Loaded Vehicle Weight: The sum of curb weight, accessory weight, vehicle capacity weight, and production options weight - 2008 Hummer H3 | Owner's Manual - Page 319
Your Vehicle on page 4-42. Vehicle Maximum Load on the Tire: Load on an individual tire due to curb weight, accessory weight, occupant weight, and cargo weight. Vehicle Placard: A label permanently attached to a vehicle showing the vehicle's capacity weight and the original equipment tire size and - 2008 Hummer H3 | Owner's Manual - Page 320
the label, is the minimum amount of air pressure needed to support your vehicle's maximum load carrying capacity. For additional information regarding how much weight your vehicle can carry, and an example of the Tire and Loading Information label, see Loading Your Vehicle on page 4-42. How you load - 2008 Hummer H3 | Owner's Manual - Page 321
the inflation pressure is low, add air until you reach the recommended amount. If you overfill the tire, release air by pushing on the metal stem in the center of the tire valve. Recheck the tire pressure with the tire gage. Be sure to put the valve caps back on the valve stems. They help prevent - 2008 Hummer H3 | Owner's Manual - Page 322
or more tires or wheels on your vehicle to ensure that the replacement or alternate tires and wheels allow the TPMS to continue to function properly. See Tire Pressure Monitor Operation to this system by other than an authorized service facility could void authorization to use this equipment. 5-64 - 2008 Hummer H3 | Owner's Manual - Page 323
. TPMS sensors are mounted onto each tire and wheel assembly on your vehicle, excluding the spare tire. The TPMS sensors monitor the air pressure in your vehicle's tires and transmit the tire pressure readings to a receiver located in the vehicle. When a low tire pressure condition is detected, the - 2008 Hummer H3 | Owner's Manual - Page 324
displayed. The low tire warning light and DIC warning message come on at each ignition cycle until the problem is corrected. Some of service. • Replacement tires or wheels do not match your vehicle's original equipment tires or wheels. Tires and wheels other than those recommended for your vehicle - 2008 Hummer H3 | Owner's Manual - Page 325
the matching procedure. The LOW TIRE message displays on the Driver Information Center (DIC). 4. Start with the driver side front tire. 5. Remove the valve cap from the valve cap stem. Activate the TPMS sensor by increasing or decreasing the tire's air pressure for 10 seconds, then stop and listen - 2008 Hummer H3 | Owner's Manual - Page 326
10. Set all four tires to the recommended air pressure level as indicated on the Tire and Loading Information label. 11. Put the valve caps back on the valve stems. Tire Inspection and Rotation We recommend that you regularly inspect your vehicle's tires, including the spare tire, for signs of wear - 2008 Hummer H3 | Owner's Manual - Page 327
places where the wheel attaches to the vehicle. In an emergency, you can use a cloth or a paper towel to do this; but be sure to use a scraper or wire brush later, if needed, to get all the rust or dirt off. See Changing a Flat Tire on page 5-79. When rotating your vehicle's tires, always use the - 2008 Hummer H3 | Owner's Manual - Page 328
, driving speeds, vehicle loading, and road conditions, influence when you need new tires. One way to tell when it is time for new tires is to check the treadwear indicators, which appear when your tires have only 1/16 inch (1.6 mm) or less of tread remaining. Some commercial truck tires may not have - 2008 Hummer H3 | Owner's Manual - Page 329
that impact the overall performance of your vehicle, including brake system performance, ride and handling, traction control, and tire pressure monitoring performance. GM's TPC Spec number is molded onto the tire's sidewall near the tire size. If the tires have an all-season tread design, the - 2008 Hummer H3 | Owner's Manual - Page 330
level you would get with TPC Spec rated tires. See Tire Pressure Monitor System on page 5-63. {CAUTION: Mixing tires could cause you to lose control while driving. If you mix tires of different sizes, brands, or types (radial and bias-belted tires) the vehicle may not handle properly, and you - 2008 Hummer H3 | Owner's Manual - Page 331
5-71 and Accessories and Modifications on page 5-3 for additional information. Different Size Tires and Wheels If you add wheels or tires that are a different size than your original equipment wheels and tires, this could affect the way your vehicle performs, including its braking, ride and handling - 2008 Hummer H3 | Owner's Manual - Page 332
to stop on wet pavement as measured under controlled conditions on specified government test surfaces of asphalt and concrete. A tire marked C may have poor traction performance. Warning: The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include - 2008 Hummer H3 | Owner's Manual - Page 333
heat buildup and possible tire failure. Wheel Alignment and Tire Balance The tires and wheels on your vehicle were aligned and balanced If wheel nuts keep coming loose, the wheel, wheel bolts, and wheel nuts should be replaced. If the wheel leaks air, replace it (except some aluminum wheels, - 2008 Hummer H3 | Owner's Manual - Page 334
the right wheel, wheel bolts, wheel nuts, and TPMS sensors for your vehicle. Notice: The wrong wheel can also cause problems with bearing life, brake cooling, speedometer or odometer calibration, headlamp aim, bumper height, vehicle ground clearance, and tire or tire chain clearance to the body and - 2008 Hummer H3 | Owner's Manual - Page 335
brakes, suspension, or other vehicle parts. The area damaged by the tire chains could cause you to lose control of your vehicle and you or others may be injured in a crash. Use another type of traction device only if its manufacturer recommends it for use on your vehicle and tire size combination - 2008 Hummer H3 | Owner's Manual - Page 336
what to expect and what to do: If a front tire fails, the flat tire creates a drag that pulls the vehicle toward that side. Take your foot off the accelerator pedal and grip the steering wheel firmly. Steer to maintain lane position, and then gently brake to a stop well out of the traffic lane. A rear - 2008 Hummer H3 | Owner's Manual - Page 337
injured or even killed. Find a level place to change your tire. To help prevent the vehicle from moving: 1. Set the parking brake firmly. 2. Put the shift lever in PARK (P). 3. If you have a four-wheel-drive vehicle, be sure the transfer case is in a drive gear - not in NEUTRAL. CAUTION: (Continued - 2008 Hummer H3 | Owner's Manual - Page 338
To use the wheel blocks, lift the wheel block and lock into place. Then, use the following as a guide to assist you in the placement of the wheel blocks. The following information will tell you next how to use the jack and change a tire. 5-80 - 2008 Hummer H3 | Owner's Manual - Page 339
Removing the Spare Tire and Tools The equipment you will need is located in the swing-gate, tool bag and you will find the following tools, which you will use to remove the spare tire and flat tire: 3. Turn the wing nut counterclockwise to release the jack tool bag and jack. 4. Remove the tool - 2008 Hummer H3 | Owner's Manual - Page 340
cover before opening the endgate to avoid possible damage. 2. Remove the center cap, if equipped, by placing the flat end of the wheel wrench in the slot on the wheel and gently pry the center cap out. 1. If your vehicle has a spare tire cover release the latch by pulling the latch straight back and - 2008 Hummer H3 | Owner's Manual - Page 341
1. Do a safety check before proceeding. See Changing a Flat Tire on page 5-79 for more information. 2. Remove the center cap by placing the flat end of the wheel wrench in the slot on the wheel and gently pry the center cap out. If your vehicle has locking lug nuts, the key is supplied in the tool - 2008 Hummer H3 | Owner's Manual - Page 342
remove them yet. If your vehicle has locking lug nuts, the key is supplied in the tool bag. Use the key along with the wheel wrench to remove the wheel nuts from the tire. Now jack up the vehicle. Jacking Locations (Overall View) A. Front Position - Lower Control Arm B. Rear Position - Lower Axle - 2008 Hummer H3 | Owner's Manual - Page 343
the jack on the front lower control arm along the bar that runs front to back. Turn the wheel wrench clockwise to raise the vehicle. Raise the vehicle far enough off the ground so there is enough room for the spare tire to clear the ground. Refer to the graphic above to locate the placement - 2008 Hummer H3 | Owner's Manual - Page 344
off the jack, you could be badly injured or killed. Never get under a vehicle when it is supported only by a jack. {CAUTION: Rear Tire Flat: You will need to use the jack handle and both jack handle extensions. Attach the wheel wrench to the jack extensions. Attach the jack handle to the jack. From - 2008 Hummer H3 | Owner's Manual - Page 345
this; but be sure to use a scraper or wire brush later, if needed, to get all the rust or dirt off. See Changing a Flat Tire on page 5-79. {CAUTION: Never use oil or grease on studs or nuts. Because the nuts might come loose. The vehicle's wheel could fall off, causing a crash. 9. Put the - 2008 Hummer H3 | Owner's Manual - Page 346
with a torque wrench to the proper torque specification. See Capacities and Specifications on page 5-107 for wheel nut torque specification. 14. After installing the wheel and tire, you must reinstall the center cap. Place the cap on the wheel and tap it into place until it sits flush with the - 2008 Hummer H3 | Owner's Manual - Page 347
nut torque specification. 4. Use the wheel wrench to tighten the nuts firmly. Try to move the tire back and forth slightly to be sure it is secure. {CAUTION: Storing a jack, a tire, or other equipment in the passenger compartment of the vehicle could cause injury. In a sudden stop or collision, loose - 2008 Hummer H3 | Owner's Manual - Page 348
5. Reinstall the center tire cover onto the spare or flat tire. 6. If your vehicle has a spare tire cover close the cover and latch the swing-gate. When reinstalling the jack and jack tool bag, make sure the jack base is securely seated behind the tabs in the swing-gate. 5. Turn the wing nut retainer - 2008 Hummer H3 | Owner's Manual - Page 349
and installed back onto your vehicle. This way, a spare tire will be available in case you need it again. Do not mix tires and wheels of different sizes, because they will not fit. Keep your spare tire and its wheel together. Appearance Care Interior Cleaning Your vehicle's interior will continue to - 2008 Hummer H3 | Owner's Manual - Page 350
to all safety instructions on the label. While cleaning your vehicle's interior, maintain adequate ventilation by opening your vehicle's doors and 78 L) of water is a good guide. • Do not heavily saturate your upholstery while cleaning. • Damage to your vehicle's interior may result from the use - 2008 Hummer H3 | Owner's Manual - Page 351
or wax-based products, or those containing organic solvents to clean your vehicle's interior instructions: 1. Saturate a lint-free, clean white cloth with water or club soda. 2. Wring the cloth to remove excess moisture. 3. Start on the outside edge of the soil and gently rub toward the center - 2008 Hummer H3 | Owner's Manual - Page 352
. Do not use silicone or wax-based products, or those containing organic solvents to clean your vehicle's interior because they can alter the gloss may cause annoying reflections in the windshield and even make it difficult to see through the windshield under certain conditions. Care of Safety Belts - 2008 Hummer H3 | Owner's Manual - Page 353
cleaning product label. If it states that it should not be used on plastic parts, do not use it on your vehicle or damage may occur and it would not be covered by the warranty. Do not wash the vehicle in direct sunlight. Use a car washing soap. Do not use cleaning agents that are - 2008 Hummer H3 | Owner's Manual - Page 354
Vehicle Care/Appearance Materials on page 5-99. If your vehicle has a basecoat/clearcoat paint finish, the clearcoat gives more depth and gloss to the colored by keeping your vehicle garaged or covered whenever possible. Protecting Exterior Bright Metal Parts Bright metal parts should be cleaned - 2008 Hummer H3 | Owner's Manual - Page 355
on aluminum or chrome-plated wheels, you could damage the surface of the wheel(s). The repairs would not be covered by your warranty. Use only approved cleaners on aluminum or chrome-plated wheels. The surface of these wheels is similar to the painted surface of your vehicle. Do not use strong soaps - 2008 Hummer H3 | Owner's Manual - Page 356
aluminum or chrome-plated wheels through an automatic car wash that uses silicone carbide tire cleaning brushes. Sheet Metal Damage If the vehicle is damaged and requires sheet metal repair or replacement, make sure the body repair shop applies anti-corrosion material to parts repaired or replaced - 2008 Hummer H3 | Owner's Manual - Page 357
Vehicle Care/Appearance Materials Description Polishing Cloth Tar and Road Oil Remover Chrome Cleaner and Polish White Sidewall Tire Cleaner Vinyl Cleaner Glass Cleaner Chrome Wheel will repair, at no charge to the owner, the surfaces of new vehicles damaged by this fallout condition within 12 months - 2008 Hummer H3 | Owner's Manual - Page 358
is the legal identifier for your vehicle. It appears on a plate in the front corner of the instrument panel, on the driver side. You can see it if you look through the windshield from outside your vehicle. The VIN also appears on the Certification/Tire and Service Parts labels and the certificates of - 2008 Hummer H3 | Owner's Manual - Page 359
you ever need to order parts. The label has the following information: Vehicle Identification Number (VIN) Model designation Paint information Production options and special equipment Do not remove this label from the vehicle. Windshield Wiper Fuses The windshield wiper motor is protected by - 2008 Hummer H3 | Owner's Manual - Page 360
fixed or goes away. Fuses and Circuit Breakers The wiring circuits in your vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of fires caused by electrical problems. Look at the silver-colored band inside the fuse. If the band is - 2008 Hummer H3 | Owner's Manual - Page 361
fuse block is located on the driver side of the engine compartment. See Engine Compartment Overview on page 5-12 for more information on location. place. Notice: Spilling liquid on any electrical components on your vehicle may damage it. Always keep the covers on any electrical component. 5-103 - 2008 Hummer H3 | Owner's Manual - Page 362
Fuse 1 2 3 5-104 Usage Heated Seats Grille Guard Fuel Pump Fuse 4 5 6 Usage Roof Lamp Battery Ignition Switch Front Wiper - 2008 Hummer H3 | Owner's Manual - Page 363
Accessories (SPO) Air Compressor Transfer Case Control Module Radio, Heating, Ventilation, Air Conditioning Display Body Control Module Rear Wiper Motor Rear Wiper Pump Switch Air Injection Reactor (AIR Antilock Brakes, StabiliTrak® Rear Window Defogger Canister Vent Regulated Voltage Control VSense - 2008 Hummer H3 | Owner's Manual - Page 364
Power Sunroof Transfer Case Control Module Switch Climate Control Spare 8 Power Seats Air Pump Passenger Side Power Window Antilock Brakes, StabiliTrak® 2 Solenoid Antilock Brakes, StabiliTrak® 1 Motor Driver Side Power Window Climate Control Fan Electronic Brake Controller Trailer B+ Fuse Starter - 2008 Hummer H3 | Owner's Manual - Page 365
on page 6-12 for more information. Capacities and Specifications Capacities Application Air Conditioning Refrigerant R134a Cooling System 3.7L Engine 5.3L Engine Engine Oil with Filter 3.7L and 5.3L Engines Fuel Tank Transfer Case 6.0 qt 23.0 gal 1.6 qt 5.7 L 87.1 L 1.5 L 10.0 qt 14.3 qt 9.5 L 13 - 2008 Hummer H3 | Owner's Manual - Page 366
and Refill) 3.7L and 5.3L Automatic 3.7L Manual Wheel Nut Torque 5.0 qt 2.5 qt 100 lb ft 4.7 L 2.4 L 140 Y English Metric All capacities are approximate. When adding, be sure to fill to the appropriate level, as recommended in this manual. Engine Specifications Engine VORTEC™ 3.7L L5 5.3L V8 VIN Code - 2008 Hummer H3 | Owner's Manual - Page 367
Section 6 Maintenance Schedule Owner Checks and Services ...6-9 At Each Fuel Fill ...6-9 At Least Once a Month ...6-9 At Least Once a Year ...6-10 Recommended Fluids and Lubricants ...6-12 Normal Maintenance Replacement Parts ...6-14 Engine Drive Belt Routing ...6-15 Maintenance Record ...6-16 - 2008 Hummer H3 | Owner's Manual - Page 368
your new vehicle warranties. See your Warranty and Owner Assistance booklet or your dealer/retailer for details. We want to help you keep your vehicle in good inspections, replacement parts, and recommended fluids and lubricants as prescribed in this manual are necessary to keep your vehicle in good - 2008 Hummer H3 | Owner's Manual - Page 369
these limits on the Tire and Loading Information label. See Loading Your Vehicle on page 4-42. supported service technicians will perform the work using genuine parts. If you want to purchase service information, see Service Publications Ordering Information on page 7-15. Owner Checks and Services - 2008 Hummer H3 | Owner's Manual - Page 370
and at this time the system must be reset. Your dealer/retailer has trained service technicians who will perform this work using genuine parts and reset the system. If the engine oil life system is ever reset accidentally, you must service your vehicle within 3,000 miles (5 000 km) since your last - 2008 Hummer H3 | Owner's Manual - Page 371
lter. See Engine Air Cleaner/Filter on page 5-20. Rotate tires and check inflation pressures and wear. See Tire Inspection and Rotation on page 5-68 and "Tire Wear Inspection" in At Least Once a Month on page 6-9. Inspect brake system. See footnote (a). Check engine coolant and windshield washer fluid - 2008 Hummer H3 | Owner's Manual - Page 372
Engine Air Cleaner/Filter on page 5-20. Change automatic transmission fluid and filter (severe service). See footnote (h). Change automatic transmission fluid and filter (normal service). Change transfer case fluid. See footnote (g). Replace spark plugs and inspect spark plug wires. An Emission Control - 2008 Hummer H3 | Owner's Manual - Page 373
engine accessory drive belt. An Emission Control Service. See footnote (k). 25,000 (40 000) 50,000 (80 000) 75,000 (120 000) 100,000 (160 000) 125,000 (200 000) 150,000 (240 000) • • Maintenance Footnotes # Lubricate the front suspension, steering linkage, and parking brake cable guides. Control - 2008 Hummer H3 | Owner's Manual - Page 374
dealer/retailer perform this service. See Engine Coolant on page 5-27 for what to use. Inspect hoses. Clean radiator, condenser, pressure cap, and filler neck. Pressure test the cooling system and pressure cap. (j) A fluid loss in any vehicle system could indicate a problem. Have the system inspected - 2008 Hummer H3 | Owner's Manual - Page 375
not covered by your warranty. Check the engine oil level and add the proper oil if necessary. See Engine Oil on page 5-15. Tire Wear Inspection Tire rotation may be required for high mileage highway drivers prior to the Engine Oil Life System service notification. Check the tires for wear and, if - 2008 Hummer H3 | Owner's Manual - Page 376
if it starts. 3. On automatic transmission vehicles, try to start the engine in each gear. The vehicle should start only in PARK (P) or NEUTRAL (N). If the vehicle starts in any other position, contact your dealer/retailer for service. On manual transmission vehicles, put the shift lever in NEUTRAL - 2008 Hummer H3 | Owner's Manual - Page 377
pedal. Do this until the vehicle is held by the parking brake only. • With a manual transmission, the ignition key should come out only in LOCK/OFF. Contact your dealer/retailer if service is required. • To check the PARK (P) mechanism's holding ability: With the engine running, shift to PARK - 2008 Hummer H3 | Owner's Manual - Page 378
for your vehicle's engine, see Engine Oil on page 5-15. 50/50 mixture of clean, drinkable ® Engine Coolant water and use only DEX-COOL Coolant. See Engine Coolant on page 5-27. Hydraulic Brake Delco® Supreme 11 Brake Fluid or System equivalent DOT-3 brake fluid. Usage Usage Windshield Washer Fluid - 2008 Hummer H3 | Owner's Manual - Page 379
No. U.S. 89021677, Axle in Canada 89021678) meeting GM Specification 9986115. Manual Transmission Fluid Transfer Case (GM Part No. U.S. 88861800, in Canada 88861801). Spline Lubricant, Special Lubricant Front Axle (GM Part No. U.S. 12345879, in Propshaft Canada 10953511) or lubricant Spline meeting - 2008 Hummer H3 | Owner's Manual - Page 380
number or specification can be obtained from your dealer/retailer. Part Engine Air Cleaner/Filter 3.7L and 5.3L Engine Engine Oil Filter 3.7L Engine 5.3L Engine Spark Plugs 3.7L Engine 5.3L Engine Wiper Blades Driver -16.7 inches (42.5 cm) Passenger-15.7 inches (40.0 cm) Rear -11.8 inches (30.0 cm - 2008 Hummer H3 | Owner's Manual - Page 381
Engine Drive Belt Routing 5.3L V8 Engine 3.7L L5 Engine 6-15 - 2008 Hummer H3 | Owner's Manual - Page 382
are performed, record the date, odometer reading, who performed the service, and the type of services performed in the boxes provided. See Maintenance Requirements on page 6-2. Any additional information from Owner Checks and Services on page 6-9 can be added on the following record pages. You - 2008 Hummer H3 | Owner's Manual - Page 383
Maintenance Record (cont'd) Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 6-17 - 2008 Hummer H3 | Owner's Manual - Page 384
Maintenance Record (cont'd) Date Odometer Reading Serviced By Maintenance I or Maintenance II Services Performed 6-18 - 2008 Hummer H3 | Owner's Manual - Page 385
Motors ...7-15 Service Publications Ordering Information ...7-15 Vehicle Data Recording and Owner Center ...7-4 Customer Assistance for Text Telephone (TTY) Users ...7-5 Customer Assistance Offices ...7-5 GM Mobility Reimbursement Program ...7-6 Roadside Assistance Program ...7-6 Scheduling Service - 2008 Hummer H3 | Owner's Manual - Page 386
If the matter has already been reviewed with the sales, service or parts manager, contact the owner of the dealership or the general and visible through the windshield. • Dealership name and location • Vehicle delivery date and present mileage When contacting HUMMER, please remember that your - 2008 Hummer H3 | Owner's Manual - Page 387
Vehicle Limited Warranty. Although you may be required to resort to this informal dispute resolution program prior to filing a court action, use of the program is free of charge and your case of owner disputes involving factory-related vehicle service claims. The program provides for the review of - 2008 Hummer H3 | Owner's Manual - Page 388
Canada section within www.gmcanada.com. • Get e-mail service reminders. • Access information about your specific vehicle, including tips and videos and an electronic version of this owner manual. • Keep track of your vehicle's service history and maintenance schedule. • Find GM dealers/retailers - 2008 Hummer H3 | Owner's Manual - Page 389
customers who are deaf, hard of hearing, or speech-impaired and who use Text Telephones (TTYs), HUMMER has TTY equipment available at its Customer Assistance Center. Any TTY user in the U.S. can communicate with HUMMER by dialing: 1-800-833-6537. (TTY users in Canada can dial 1-800-263-3830.) From - 2008 Hummer H3 | Owner's Manual - Page 390
Motors de Mexico, S. de R.L. de C.V. Customer Assistance Center Paseo de la Reforma # 2740 Col. Lomas de Bezares vehicles purchased in Canada, call 1-800-268-6800. Service is available 24 hours a day, 365 days a year. As the owner of a new HUMMER vehicle, you are automatically enrolled in the HUMMER - 2008 Hummer H3 | Owner's Manual - Page 391
to limit services or reimbursement to an owner or driver when, in their sole discretion, the claims become excessive in frequency or type of occurrence. • Emergency Tow from a Public Roadway or Highway: Tow to the nearest dealership for warranty service or in the event of a vehicle-disabling crash - 2008 Hummer H3 | Owner's Manual - Page 392
service vehicle complete with the necessary HUMMER parts and tools required to handle most roadside repairs. • Model, year, color, and license plate number of the vehicle • Odometer reading, Vehicle Identification Number (VIN), and delivery date of the vehicle • Description of the problem Towing - 2008 Hummer H3 | Owner's Manual - Page 393
. Courtesy Transportation is not a part of the New Vehicle Limited Warranty. A separate booklet entitled "Warranty and Owner Assistance Information" furnished with each new vehicle provides detailed warranty coverage information. Transportation Options Warranty service can generally be completed - 2008 Hummer H3 | Owner's Manual - Page 394
or Fuel Reimbursement If your vehicle requires warranty repairs, and public transportation is used instead of the dealer's shuttle service, the expense must be supported by original receipts and can only be up to the maximum amount allowed by GM for shuttle service. In addition, for U.S. customers - 2008 Hummer H3 | Owner's Manual - Page 395
. The use of Genuine GM parts can help maintain your GM New Vehicle Warranty. Recycled original equipment parts may also be used for repair. These parts are typically removed from vehicles that were total losses in prior crashes. In most cases, the parts being recycled are from undamaged sections - 2008 Hummer H3 | Owner's Manual - Page 396
call GM Roadside Assistance. See Roadside Assistance Program on page 7-6 for more information. • If your vehicle cannot be driven, know where the towing service will be taking it. Get a card from the tow truck operator or write down the driver's name, the service's name, and the phone number. 7-12 - 2008 Hummer H3 | Owner's Manual - Page 397
vehicle before it is towed away. Make sure this includes your insurance information and registration if you keep these items in your vehicle. • Choose a reputable collision repair facility for your vehicle number, vehicle license plate, vehicle make, model and model year, Vehicle Identification - 2008 Hummer H3 | Owner's Manual - Page 398
, take your vehicle there, or have it towed there. Specify to the facility that any required replacement collision parts be original equipment parts, either new Genuine GM parts or recycled original GM parts. Remember, recycled parts will not be covered by your GM vehicle warranty. Insurance pays - 2008 Hummer H3 | Owner's Manual - Page 399
Manuals Service Manuals have the diagnosis and repair information on engines, transmission, axle suspension, brakes, electrical, steering, body, etc. Service Bulletins Service Bulletins' give additional technical service information needed to knowledgeably service General Motors cars and trucks - 2008 Hummer H3 | Owner's Manual - Page 400
and control engine and transmission performance, to monitor the conditions for airbag deployment and deploy airbags in a crash and, if so equipped, to provide antilock braking to help the driver control the vehicle. These modules may store data to help your dealer/retailer technician service your - 2008 Hummer H3 | Owner's Manual - Page 401
data or share it with others except: with the consent of the vehicle owner or, if the vehicle is leased, with the consent of the lessee; in response to an official request of police or similar government office; as part of GM's defense of litigation through the discovery process; or, as required - 2008 Hummer H3 | Owner's Manual - Page 402
® services, please refer to the OnStar® Terms and Conditions for information on data collection and use. See also OnStar® System on page 2-48 in this manual for more information. ® Radio Frequency Identification (RFID) RFID technology is used in some vehicles for functions such as tire pressure - 2008 Hummer H3 | Owner's Manual - Page 403
A Accessories and Modifications ...5-3 Adding Equipment to Your Airbag-Equipped Vehicle ...1-68 Additives, Fuel ...5-6 Add-On Electrical Equipment ...5-101 Air Cleaner/Filter, Engine ...5-20 Air Conditioning ...3-22 Airbag Passenger Status Indicator ...3-30 Readiness Light ...3-29 Airbag System ...1- - 2008 Hummer H3 | Owner's Manual - Page 404
, Tire ...5-77 Charging System Light ...3-32 Check Engine Light ...3-36 Checking Things Under the Hood ...5-11 Chemical Paint Spotting ...5-99 B Battery ...5-41 Electric Power Management ...3-20 Run-Down Protection ...3-20 Bench Seat, Split (60/40) ...1-8 Brake Emergencies ...4-5 Brakes ...5-38 - 2008 Hummer H3 | Owner's Manual - Page 405
the Center Rear Seat Wheels ...Exterior Lamps/Lenses ...Fabric/Carpet ...Finish Care ...Instrument Panel, Vinyl, and Other Plastic Surfaces ...Interior ...Leather ...Tires ...Underbody Maintenance ...Washing Your Vehicle ...Weatherstrips ...Windshield, Backglass, and Wiper Blades ...Climate Control - 2008 Hummer H3 | Owner's Manual - Page 406
Options ...5-102 Windshield Wiper Fuses ...5-101 Engine Air Cleaner/Filter ...5-20 Check and Service Engine Soon Light ...3-36 Coolant ...5-27 Coolant Heater ...2-22 Coolant Temperature Gage ...3-35 Drive Belt Routing ...6-15 Engine Compartment Overview ...5-12 Exhaust ...2-36 Fan Noise ...5-36 - 2008 Hummer H3 | Owner's Manual - Page 407
F Filter Engine Air Cleaner ...5-20 Finish Damage ...5-98 Fixed Mast Antenna ...3-62 Flashers, Hazard Warning ...3-6 Flash-to-Pass ...3-9 Flat Tire ...5-78 Flat Tire, Changing ...5-79 Flat Tire, Storing ...5-89 Fluid ...5-21, 5-24 Power Steering ...5-36 Windshield Washer ...5-37 Fog Lamp Fog ...3-19 - 2008 Hummer H3 | Owner's Manual - Page 408
Belts Properly ...1-16 Hydraulic Clutch ...5-26 I Ignition Positions ...2-18 Infants and Young Children, Restraints ...1-33 Inflation - Tire Pressure ...5-62 Instrument Panel Overview ...3-4 Instrument Panel (I/P) Brightness ...3-19 Cluster ...3-26 J Jump Starting ...5-42 K Keyless Entry System - 2008 Hummer H3 | Owner's Manual - Page 409
L Labeling, Tire Sidewall ...Lamps Dome ...Dome Lamp Override ...Off-Road ...Reading ...Lap-Shoulder Belt ...LATCH System Child Restraints ...License Plate Lamps ...Light Airbag Readiness ...Antilock Brake System Warning ...Brake System Warning ...Charging System ...Cruise Control ...Highbeam On ... - 2008 Hummer H3 | Owner's Manual - Page 410
Replacement Parts ...6-14 Maintenance Requirements ...6-2 Owner Checks and Services ...6-9 Recommended Fluids and Lubricants ...6-12 Scheduled Maintenance ...6-4 Using ...6-2 Your Vehicle and the Environment ...6-2 Malfunction Indicator Light ...3-36 Manual Seats ...1-2 Manual Transmission - 2008 Hummer H3 | Owner's Manual - Page 411
Owner Center ...7-4 OnStar, Privacy ...7-18 OnStar® System, see OnStar® Manual ...2-48 Operation, Universal Home Remote System ...2-52 Other Warning Devices ...3-6 Outlet Adjustment ...3-24 Outlets Accessory Power ...3-21 Outside Convex Mirror ...2-44 Power Mirrors ...2-43 Owner Checks and Services - 2008 Hummer H3 | Owner's Manual - Page 412
Check Checking the Restraint Systems ...1-69 Replacing Restraint System Parts After a Crash ...1-70 Retained Accessory Power (RAP) ...2-20 Roadside Assistance Program ...7-6 Rocking Your Vehicle to Get it Out ...4-40 Routing, Engine Drive Belt ...6-15 Running the Engine While Parked ...2-37 10 - 2008 Hummer H3 | Owner's Manual - Page 413
...1-51 Security Light ...3-39 Service ...5-3 Accessories and Modifications ...5-3 Adding Equipment to the Outside of Your Vehicle ...5-5 California Pershlorate Materials Requirements ...5-4 California Proposition 65 Warning ...5-4 Doing Your Own Work ...5-4 Engine Soon Light ...3-36 Publications - 2008 Hummer H3 | Owner's Manual - Page 414
2-14 2-16 2-16 2-15 Tilt Wheel ...3-7 Time, Setting ...3-48 Tire Pressure Light ...3-35 Tires ...5-54 Aluminum or Chrome-Plated Wheels, Cleaning ...5-97 Buying New Tires ...5-71 Chains ...5-77 Changing a Flat Tire ...5-79 Cleaning ...5-98 Different Size ...5-73 If a Tire Goes Flat ...5-78 Inflation - 2008 Hummer H3 | Owner's Manual - Page 415
Up-Shift Light ...3-32 Using this Manual ...iii V Vehicle Control ...4-3 Damage Warnings ...iv Loading ...4-42 Parking Your ...2-35 Symbols ...iv Vehicle Data Recording and Privacy ...7-16 Vehicle Identification Number (VIN) ...5-100 Service Parts Identification Label ...5-101 Ventilation Adjustment - 2008 Hummer H3 | Owner's Manual - Page 416
...3-6 Other Warning Devices ...3-6 Safety and Symbols ...iii Vehicle Damage ...iv Wheels Alignment and Tire Balance ...5-75 Different Size ...5-73 Replacement ...5-75 Where to Put the Restraint ...1-40 Windows ...2-11 Power ...2-12 Windshield Backglass, and Wiper Blades, Cleaning ...5-97 Washer
-
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35
-
36
-
37
-
38
-
39
-
40
-
41
-
42
-
43
-
44
-
45
-
46
-
47
-
48
-
49
-
50
-
51
-
52
-
53
-
54
-
55
-
56
-
57
-
58
-
59
-
60
-
61
-
62
-
63
-
64
-
65
-
66
-
67
-
68
-
69
-
70
-
71
-
72
-
73
-
74
-
75
-
76
-
77
-
78
-
79
-
80
-
81
-
82
-
83
-
84
-
85
-
86
-
87
-
88
-
89
-
90
-
91
-
92
-
93
-
94
-
95
-
96
-
97
-
98
-
99
-
100
-
101
-
102
-
103
-
104
-
105
-
106
-
107
-
108
-
109
-
110
-
111
-
112
-
113
-
114
-
115
-
116
-
117
-
118
-
119
-
120
-
121
-
122
-
123
-
124
-
125
-
126
-
127
-
128
-
129
-
130
-
131
-
132
-
133
-
134
-
135
-
136
-
137
-
138
-
139
-
140
-
141
-
142
-
143
-
144
-
145
-
146
-
147
-
148
-
149
-
150
-
151
-
152
-
153
-
154
-
155
-
156
-
157
-
158
-
159
-
160
-
161
-
162
-
163
-
164
-
165
-
166
-
167
-
168
-
169
-
170
-
171
-
172
-
173
-
174
-
175
-
176
-
177
-
178
-
179
-
180
-
181
-
182
-
183
-
184
-
185
-
186
-
187
-
188
-
189
-
190
-
191
-
192
-
193
-
194
-
195
-
196
-
197
-
198
-
199
-
200
-
201
-
202
-
203
-
204
-
205
-
206
-
207
-
208
-
209
-
210
-
211
-
212
-
213
-
214
-
215
-
216
-
217
-
218
-
219
-
220
-
221
-
222
-
223
-
224
-
225
-
226
-
227
-
228
-
229
-
230
-
231
-
232
-
233
-
234
-
235
-
236
-
237
-
238
-
239
-
240
-
241
-
242
-
243
-
244
-
245
-
246
-
247
-
248
-
249
-
250
-
251
-
252
-
253
-
254
-
255
-
256
-
257
-
258
-
259
-
260
-
261
-
262
-
263
-
264
-
265
-
266
-
267
-
268
-
269
-
270
-
271
-
272
-
273
-
274
-
275
-
276
-
277
-
278
-
279
-
280
-
281
-
282
-
283
-
284
-
285
-
286
-
287
-
288
-
289
-
290
-
291
-
292
-
293
-
294
-
295
-
296
-
297
-
298
-
299
-
300
-
301
-
302
-
303
-
304
-
305
-
306
-
307
-
308
-
309
-
310
-
311
-
312
-
313
-
314
-
315
-
316
-
317
-
318
-
319
-
320
-
321
-
322
-
323
-
324
-
325
-
326
-
327
-
328
-
329
-
330
-
331
-
332
-
333
-
334
-
335
-
336
-
337
-
338
-
339
-
340
-
341
-
342
-
343
-
344
-
345
-
346
-
347
-
348
-
349
-
350
-
351
-
352
-
353
-
354
-
355
-
356
-
357
-
358
-
359
-
360
-
361
-
362
-
363
-
364
-
365
-
366
-
367
-
368
-
369
-
370
-
371
-
372
-
373
-
374
-
375
-
376
-
377
-
378
-
379
-
380
-
381
-
382
-
383
-
384
-
385
-
386
-
387
-
388
-
389
-
390
-
391
-
392
-
393
-
394
-
395
-
396
-
397
-
398
-
399
-
400
-
401
-
402
-
403
-
404
-
405
-
406
-
407
-
408
-
409
-
410
-
411
-
412
-
413
-
414
-
415
-
416
 |
 |
Seats and Restraint Systems
...........................
1-1
Front Seats
...............................................
1-2
Rear Seats
...............................................
1-8
Safety Belts
.............................................
1-10
Child Restraints
.......................................
1-30
Airbag System
.........................................
1-54
Restraint System Check
............................
1-69
Features and Controls
.....................................
2-1
Keys
........................................................
2-3
Doors and Locks
.......................................
2-7
Windows
.................................................
2-11
Theft-Deterrent Systems
............................
2-14
Starting and Operating Your Vehicle
...........
2-18
Mirrors
....................................................
2-38
Object Detection Systems
..........................
2-44
OnStar
®
System
......................................
2-48
Universal Home Remote System
................
2-51
Storage Areas
.........................................
2-56
Sunroof
..................................................
2-60
Instrument Panel
.............................................
3-1
Instrument Panel Overview
..........................
3-4
Climate Controls
......................................
3-22
Warning Lights, Gages, and Indicators
........
3-25
Driver Information Center (DIC)
..................
3-40
Audio System(s)
.......................................
3-48
Driving Your Vehicle
.......................................
4-1
Your Driving, the Road, and Your Vehicle
.....
4-2
Towing
...................................................
4-48
Service and Appearance Care
..........................
5-1
Service
.....................................................
5-3
Fuel
.........................................................
5-5
Checking Things Under the Hood
...............
5-11
Rear Axle
...............................................
5-45
Four-Wheel Drive
.....................................
5-46
Front Axle
...............................................
5-46
Headlamp Aiming
.....................................
5-46
Bulb Replacement
....................................
5-49
Windshield Wiper Blade Replacement
.........
5-52
Tires
......................................................
5-54
Appearance Care
.....................................
5-91
Vehicle Identification
...............................
5-100
Electrical System
....................................
5-101
Capacities and Specifications
...................
5-107
Maintenance Schedule
.....................................
6-1
Maintenance Schedule
................................
6-2
Customer Assistance Information
....................
7-1
Customer Assistance and Information
...........
7-2
Reporting Safety Defects
...........................
7-14
Vehicle Data Recording and Privacy
...........
7-16
Index
.................................................................
1
2008 HUMMER H3 Owner Manual
M