Getting Familiar With Off-Road Driving - GMC Hummer H3 2008 Owner's Handbook Manual

For mounds, wash-outs, loose
up-hill slopes, ditches, etc.
When wheel spin occurs as the
vehicle is moving, the driver may
notice a slight shaking or shudder-
ing of the vehicle. This indicates
that the vehicle is losing traction
on this terrain. This should be
stopped as soon as possible to
prevent vehicle component
damage.
The driver should do the
following:
1. Reduce throttle.
2. Assess the terrain properly and
adjust the vehicle speed and
gear ranges accordingly. Use
first gear and Four-Wheel High
for higher speeds or Four-
Wheel Low Lock for more
torque and lower speeds.
3. When you feel the shaking or
shuddering sensation, apply
slight pressure to the brake
and keep the vehicle moving
in a controlled manner.
4. Be prepared to alternate
between the brake and throt-
tle through the adverse
terrain.
Section 3
GETTING FAMILIAR WITH
OFF-ROAD DRIVING
It's a good idea to practise in an
area that's safe and close to home
before you go into the wilderness.
Off-road driving does require
some new and different driving
skills. Here's what we mean:
Tune your senses to different kinds
of signals. Your eyes, for example,
need to constantly sweep the
terrain for unexpected obstacles.
Your ears need to listen for unusual
tyre or engine sounds. With your
arms, hands, feet and body, you'll
need to respond to vibrations and
vehicle bounce.
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