Hummer 2010 H3 - Manual (Page 195)

Driving and Operating 9-11
The vehicle can climb a 40.6 cm
(16 inch) vertical step. Step climbing
is best done by approaching the
step at an angle rather than
straight on.
Brake and Accelerator
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 rev the engine.
2. Select the proper transmission
and transfer case gear
range; usually 1 (First) 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 spin. TCS might not
operate if the brakes are
applied.
4. If wheel spin cannot be
controlled by the TCS system,
fully press the brake pedal with
your left foot so all wheel spin is
stopped.
5. Back away from the obstacle so
that a new approach can be
tried.
6. As the first wheel crosses
the obstacle, be prepared to
alternate the brake and
accelerator pedal to maintain
control and avoid tire drop-off
from obstacles. Repeat this
process for the other wheels.