Hummer 2004 H2 User Manual download pdf (Page 253)

100

101

Brake and Throttle Operation

Techniques for Off-Road Driving

For logs, walls, rocks, severe ditches, hills, sand, etc.

1. Bring the vehicle to a complete stop. Do not

overspeed the engine.

2. Select the proper transmission and transfer case

gear range; usually FIRST (1) gear, 4LO LOCK for

such obstacles.

3. If wheel spin is experienced, maintain steady

throttle, with your foot off the brake pedal, to

allow the TCS to control the wheel spin. TCS will

not operate if the brakes are applied, even slightly.

4. If wheel spin can not be controlled by the system,

fully press the brake pedal with your left foot so all

wheel spin is halted.

5. Back away from the obstacle such that a new

approach can be tried.

6. As the ﬁrst wheel crosses the obstacle, be prepared

to modulate the brake and throttle to maintain

control and avoid tire drop-off from obstacles.

Repeat the controlled process for the other wheels.

For mounds, washouts, loose up-hill slopes,

ditches, etc.

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Hummer 2004 H2 User Manual Page 253

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