2008 Hummer H3 Owner's Manual - Page 216
2008 Hummer H3 Manual
Page 216 highlights
Because you will be on an unpaved surface, 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 from driving on paved roads and highways. There are no road signs, posted speed limits, or signal lights. You have to use your own good judgment about what is safe and what is not. Drinking and driving can be very dangerous on any road. And this is certainly true for off-road driving. At the very time you need special alertness and driving skills, your reflexes, perceptions, and judgment can be affected by even a small amount of alcohol. You could have a serious - or even fatal - accident if you drink and drive or ride with a driver who has been drinking. See Drunk Driving on page 4-2. Crossing Obstacles Approach Angle - a Key to Mobility If you encounter a large dip in the terrain, do not enter straight on; enter at an angle - 15 degrees minimum approach (A), 75 degrees maximum approach angle (B). For very large dips, ditches, or small washes, coast in, using the engine as a brake (transmission and transfer case lowest gears). Then, use the low ranges in the transmission and transfer case to power out. 4-20