If Your Vehicle Is Stuck In Sand, Mud, Ice, Or Snow; Rocking Your Vehicle To Get It Out - GMC Sierra 2008 Owner's Manual

Then, shut the engine off and close the window almost
all the way to preserve the heat. Start the engine again
and repeat this only when you feel really uncomfortable
from the cold. But do it as little as possible. Preserve
the fuel as long as you can. To help keep warm, you
can get out of the vehicle and do some fairly vigorous
exercises every half hour or so until help comes.
If Your Vehicle is Stuck in Sand,
Mud, Ice, or Snow
Slowly and cautiously spin the wheels to free your
vehicle when stuck in sand, mud, ice, or snow.
See Rocking Your Vehicle to Get It Out on page 4-34.
If your vehicle has a traction system, it can often help
to free a stuck vehicle. Refer to your vehicle's traction
system in the Index. If the stuck condition is too
severe for the traction system to free the vehicle, turn
the traction system off and use the rocking method.
4-34
CAUTION:
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If you let your vehicle's tires spin at high
speed, they can explode, and you or others
could be injured. The vehicle can overheat,
causing an engine compartment fire or other
damage. Spin the wheels as little as possible
and avoid going above 35 mph (55 km/h) as
shown on the speedometer.
For information about using tire chains on your vehicle,
see Tire Chains on page 5-91.

Rocking Your Vehicle to Get It Out

First, turn the steering wheel left and right to clear
the area around the front wheels. For four-wheel-drive
vehicles, shift into Four-Wheel High. For vehicles
®
with StabiliTrak , turn the traction control part of the
system off. See StabiliTrak
Then shift back and forth between REVERSE (R) and a
forward gear, spinning the wheels as little as possible.
®
System on page 4-6.