Home » Hummer Manuals » 2008 Hummer H3 » Manual Viewer

2008 Hummer H3 Owner's Manual - Page 254

2008 Hummer H3 Manual

Get 2008 Hummer H3 PDF manuals and user guides

View all 2008 Hummer H3 manuals

Page 254 highlights

Driving On Grades Reduce speed and shift to a lower gear before you start down a long or steep downgrade. If you don't shift down, you might have to use your brakes so much that they would get hot and no longer work well. If you have an automatic transmission, you can tow in DRIVE (D). You may want to shift the transmission to THIRD (3) or, if necessary, a lower gear selection if the transmission shifts too often under heavy loads and/or hilly conditions. If you have a manual transmission and you are towing a trailer, it is better not to use the highest gear. When towing at high altitude on steep uphill grades, consider the following: Engine coolant will boil at a lower temperature than at normal altitudes. If you turn your engine off immediately after towing at high altitude on steep uphill grades, your vehicle may show signs similar to engine overheating. To avoid this, let the engine run while parked, preferably on level ground, with the automatic transmission in PARK (P) for a few minutes before turning the engine off. For manual transmissions, let the engine run while parked, preferably on level ground, with the transmission out of gear and the parking brake applied, for a few minutes before turning the engine off. If you do get the overheat warning, see Engine Overheating on page 5-29. Parking on Hills {CAUTION: You really should not park your vehicle, with a trailer attached, on a hill. If something goes wrong, your rig could start to move. People can be injured, 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 facing downhill or into traffic if facing uphill. 2. Have someone place chocks under the trailer wheels. 3. When the wheel chocks are in place, release the regular brakes until the chocks absorb the load. 4. Reapply the regular brakes. Then apply your parking brake and shift into PARK (P) for an automatic transmission or into gear for a manual transmission. 5. Release the regular brakes. 4-58

Section	Page
2008 HUMMER H3 BookTOC	1
Seats and Restraint Systems	5
Front Seats	6
Manual Seats	6
Power Seats	7
Power Lumbar	7
Heated Seats	8
Reclining Seatbacks	8
Head Restraints	11
Rear Seats	12
	60
Where Are the Airbags?	61
When Should an Airbag Inflate?	63
What Makes an Airbag Inflate?	64
How Does an Airbag Restrain?	64
What Will You See After an Airbag Inflates?	65
Passenger Sensing System	66
Servicing Your Airbag-Equipped Vehicle	71
Adding Equipment to Your Airbag-Equipped Vehicle	72
Restraint System Check	73
Checking the Restraint Systems	73
Replacing Restraint System Parts After a Crash	74
Features and Controls	75
Keys	77
Remote Keyless Entry (RKE) System	78
Remote Keyless Entry (RKE) System Operation	79
Doors and Locks	81
Door Locks	81
Power Door Locks	82
Programmable Automatic Door Locks	82
Rear Door Security Locks	83
Lockout Protection	83
Swing-gate	84
Windows	85
Power Windows	86
Sun Visors	87
Theft-Deterrent Systems	88
Content Theft-Deterrent	88
Passlock® (U. S. Only)	89
PASS-Key® III+	90
PASS-Key® III+ Operation (Canada Only)	90
Starting and Operating Your Vehicle	92
New Vehicle Break-In	92
Ignition Positions	92
Retained Accessory Power (RAP)	94
Starting the Engine	94
Engine Coolant Heater	96
Automatic Transmission Operation	97
Manual Transmission Operation	100
Full-Time Four-Wheel Drive	101
Parking Brake	106
Shifting Into PARK (P) (Automatic Transmission)	107
Shifting Out of PARK (P) (Automatic Transmission)	109
Parking Your Vehicle (Manual Transmission)	109
Parking Over Things That Burn	110
Engine Exhaust	110
Running the Engine While Parked	111
Mirrors	112
Automatic Dimming Rearview Mirror with OnStar®, Compass and Temperature Display	112
Automatic Dimming Rearview Mirror with Compass and Temperature Display	115
Outside Power Mirrors	117
Outside Convex Mirror	118
Object Detection Systems	118
Rear Vision Camera	118
OnStar® System	122
Universal Home Remote System	125
Universal Home Remote System Operation (With One Triangular LED)	126
Storage Areas	130
Glove Box	130
Cupholder(s)	130
Front Seat Storage Net	131
Front Armrest Storage Area	131
Luggage Carrier	131
Rear Storage Area	133
Convenience Net	133
Cargo Cover	133
Cargo Tie Downs	133
Sunroof	134
Instrument Panel	135
Instrument Panel Overview	138
Hazard Warning Flashers	140
Other Warning Devices	140
Horn	140
Tilt Wheel	141
Turn Signal/Multifunction Lever	141
Turn and Lane-Change Signals	142
Headlamp High/Low-Beam Changer	143
Flash-to-Pass	143
Windshield Wipers	144
Windshield Washer	144
Rear Window Wiper/Washer	145
Cruise Control	145
Exterior Lamps	149
Headlamps on Reminder	150
Daytime Running Lamps (DRL)	151
Automatic Headlamp System	151
Off-Road Lamps	152
Fog Lamps	153
Instrument Panel Brightness	153
Dome Lamp	153
Dome Lamp Override	154
Exit Lighting	154
Reading Lamps	154
Electric Power Management	154
Battery Run-Down Protection	154
Accessory Power Outlet(s)	155
Ashtray(s) and Cigarette Lighter	156
Climate Controls	156
Climate Control System	156
Outlet Adjustment	158
Warning Lights, Gages, and Indicators	159
Instrument Panel Cluster	160
Speedometer and Odometer	161
Trip Odometer	161
Tachometer	161
Safety Belt Reminders	162
Airbag Readiness Light	163
Passenger Airbag Status Indicator	164
Charging System Light	166
Up-Shift Light	166
Brake System Warning Light	167
Antilock Brake System Warning Light	168
Traction Off Light	168
StabiliTrak® Not Ready Light	168
Engine Coolant Temperature Gage	169
Tire Pressure Light	169
Malfunction Indicator Lamp	170
Oil Pressure Light	172
Security Light	173
Cruise Control Light	173
Highbeam On Light	173
Fuel Gage	174
Driver Information Center (DIC)	174
DIC Operation and Displays	174
DIC Warnings and Messages	177
Audio System(s)	182
Setting the Time	182
Radio(s)	183
XM Radio Messages	194
Navigation/Radio System	195
Theft-Deterrent Feature	195
Radio Reception	195
Fixed Mast Antenna	196
XM™ Satellite Radio Antenna System	196
Driving Your Vehicle	197
Your Driving, the Road, and Your Vehicle	198
Defensive Driving	198
Drunk Driving	198
Control of a Vehicle	199
Braking	199
Antilock Brake System (ABS)	200
Braking in Emergencies	201
Traction Control System (TCS)	201
Locking Rear Axle	202
StabiliTrak® System	203
Steering	204
Off-Road Recovery	206
Passing	206
Loss of Control	206
Off-Road Driving	208
Assist Steps	227
Driving at Night	228
Driving in Rain and on Wet Roads	229
Before Leaving on a Long Trip	230
Highway Hypnosis	230
Hill and Mountain Roads	230
Winter Driving	231
If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow	235
Rocking Your Vehicle to Get It Out	236
Recovery Loops	236
Loading Your Vehicle	238
Towing	244
Towing Your Vehicle	244
Recreational Vehicle Towing	244
Towing a Trailer	246
Trailer Recommendations	258
Service and Appearance Care	259
Service	261
Accessories and Modifications	261
California Proposition 65 Warning	262
California Perchlorate Materials Requirements	262
Doing Your Own Service Work	262
Adding Equipment to the Outside of Your Vehicle	263
Fuel	263
Gasoline Octane	263
Gasoline Specifications	263
California Fuel	264
Additives	264
Fuels in Foreign Countries	265
Filling the Tank	266
Filling a Portable Fuel Container	268
Checking Things Under the Hood	269
Hood Release	269
Engine Compartment Overview	270
Engine Oil	273
Engine Oil Life System	276
Engine Air Cleaner/Filter	278
Automatic Transmission Fluid	279
Manual Transmission Fluid	282
Hydraulic Clutch	284
Engine Coolant	285
Radiator Pressure Cap	287
Engine Overheating	287
Cooling System	289
Engine Fan Noise	294
Power Steering Fluid	294
Windshield Washer Fluid	295
Brakes	296
Battery	299
Jump Starting	300
Rear Axle	303
Four-Wheel Drive	304
Front Axle	304
Headlamp Aiming	304
Bulb Replacement	307
Halogen Bulbs	307
Headlamps	307
Taillamps, Turn Signal, Stoplamps and Back-up Lamps	308
License Plate Lamp	309
Replacement Bulbs	310
Windshield Wiper Blade Replacement	310
Tires	312
Tire Sidewall Labeling	313
Tire Terminology and Definitions	317
Inflation - Tire Pressure	320
Tire Pressure Monitor System	321
Tire Pressure Monitor Operation	323
Tire Inspection and Rotation	326
When It Is Time for New Tires	328
Buying New Tires	329
Different Size Tires and Wheels	331
Uniform Tire Quality Grading	332
Wheel Alignment and Tire Balance	333
Wheel Replacement	333
Tire Chains	335
If a Tire Goes Flat	336
Changing a Flat Tire	337
Removing the Spare Tire and Tools	339
Removing the Flat Tire and Installing the Spare Tire	341
Storing a Flat or Spare Tire and Tools	347
Spare Tire	349
Appearance Care	349
Interior Cleaning	349
Fabric/Carpet	351
Leather	351
Instrument Panel, Vinyl, and Other Plastic Surfaces	352
Care of Safety Belts	352
Weatherstrips	352
Washing Your Vehicle	353
Cleaning Exterior Lamps/Lenses	353
Finish Care	354
Windshield, Backglass, and Wiper Blades	355
Aluminum or Chrome-Plated Wheels and Trim	355
Tires	356
Sheet Metal Damage	356
Finish Damage	356
Underbody Maintenance	356
Chemical Paint Spotting	357
Vehicle Care/Appearance Materials	357
Vehicle Identification	358
Vehicle Identification Number (VIN)	358
Service Parts Identification Label	359
Electrical System	359
Add-On Electrical Equipment	359
Windshield Wiper Fuses	359
Power Windows and Other Power Options	360
Fuses and Circuit Breakers	360
Engine Compartment Fuse Block	361
Capacities and Specifications	365
Capacities and Specifications	365
Maintenance Schedule	367
Maintenance Schedule	368
Introduction	368
Maintenance Requirements	368
Your Vehicle and the Environment	368
Using the Maintenance Schedule	368
Scheduled Maintenance	370
Additional Required Services	372
Maintenance Footnotes	373
Owner Checks and Services	375
At Each Fuel Fill	375
At Least Once a Month	375
At Least Once a Year	376
Recommended Fluids and Lubricants	378
Normal Maintenance Replacement Parts	380
Engine Drive Belt Routing	381
Maintenance Record	382
Customer Assistance Information	385
Customer Assistance and Information	386
Customer Satisfaction Procedure	386
Online Owner Center	388
Customer Assistance for Text Telephone (TTY) Users	389
Customer Assistance Offices	389
GM Mobility Reimbursement Program	390
Roadside Assistance Program	390
Scheduling Service Appointments	393
Courtesy Transportation	393
Collision Damage Repair	395
Reporting Safety Defects	398
Reporting Safety Defects to the United States Government	398
Reporting Safety Defects to the Canadian Government	399
Reporting Safety Defects to General Motors	399
Service Publications Ordering Information	399
Vehicle Data Recording and Privacy	400
Event Data Recorders	401
OnStar®	402
Navigation System	402
Radio Frequency Identification (RFID)	402

Match case Limit results 1 per page

Driving On Grades

Reduce speed and shift to a lower gear

before

you start

down a long or steep downgrade. If you don’t shift

down, you might have to use your brakes so much

that they would get hot and no longer work well.

If you have an automatic transmission, you can tow

in DRIVE (D). You may want to shift the transmission to

THIRD (3) or, if necessary, a lower gear selection if

the transmission shifts too often under heavy loads

and/or hilly conditions.

If you have a manual transmission and you are towing a

trailer, it is better not to use the highest gear.

When towing at high altitude on steep uphill grades,

consider the following: Engine coolant will boil at a lower

temperature than at normal altitudes. If you turn your

engine off immediately after towing at high altitude on

steep uphill grades, your vehicle may show signs similar

to engine overheating. To avoid this, let the engine run

while parked, preferably on level ground, with the

automatic transmission in PARK (P) for a few minutes

before turning the engine off. For manual transmissions,

let the engine run while parked, preferably on level

ground, with the transmission out of gear and the parking

brake applied, for a few minutes before turning the engine

off. If you do get the overheat warning, see

Engine

Overheating on page 5-29

Parking on Hills

{

CAUTION:

You really should not park your vehicle, with a

trailer attached, on a hill. If something goes

wrong, your rig could start to move. People

can be injured, 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 facing downhill or into traffic if facing

uphill.

2. Have someone place chocks under the trailer

wheels.

3. When the wheel chocks are in place, release the

regular brakes until the chocks absorb the load.

4. Reapply the regular brakes. Then apply your

parking brake and shift into PARK (P) for an

automatic transmission or into gear for a manual

transmission.

5. Release the regular brakes.

4-58