Hummer 2006 H3 Owner's Manual page 231

CAUTION:
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Driving through rushing water can be
dangerous. Deep water can sweep your vehicle
downstream and you and your passengers
could drown. If it is only shallow water, it can
still wash away the ground from under your
tires, and you could lose traction and roll
the vehicle over. Do not drive through
rushing water.
See Driving in Rain and on Wet Roads on page 4-37 for
more information on driving through water.
After Off-Road Driving
Remove any brush or debris that has collected on the
underbody, chassis, or under the hood. These
accumulations can be a fire hazard.
After operation in mud or sand, have the brake
linings cleaned and checked. These substances can
cause glazing and uneven braking. Check the engine
and oil coolers for mud accumulation. Thoroughly
and carefully clean these devices to allow proper
cooling. Check the body structure, steering, suspension,
underbody shields, wheels, tires, and exhaust system
for damage. Also, check the fuel lines and cooling
system for any leakage.
Your vehicle will require more frequent service due to
off-road use. Refer to the Maintenance Schedule
for additional information.
4-35