Traction Control Operation - Chevrolet 2005 Uplander Owner's Manual

If either message appears on the DIC, and your vehicle
has not gone through hard acceleration, braking or
multiple turns in the first two miles of driving, your
vehicle should be taken in for service.
The STABILITY CONTROL ACTIVE message will appear
on the DIC only when the system is both on and
activated. It means that an advanced computer-controlled
system has come on to help your vehicle continue to go
in the direction in which you are steering. StabiliTrak
activates when the computer senses that your vehicle is
just starting to spin, as it might if you hit a patch of ice or
other slippery spot on the road. When the system
activates, you may hear a noise or feel a vibration in the
brake pedal. This is normal. When the STABILITY
CONTROL ACTIVE message is on, you should continue
to steer in the direction you want to go. The system is
designed to help you in bad weather or other difficult
driving situations by making the most of whatever road
conditions will permit. For more information on the
stability messages, see Driver Information Center (DIC)
on page 3-46.
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If the StabiliTrak system turns off, the traction control
system warning light will illuminate, and the STABILITY
CONTROL OFF message will appear on the DIC to
warn the driver that StabiliTrak
to assist you with directional control of the vehicle.
Adjust your driving accordingly.
4-10
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is no longer available
To limit wheel spin and realize the full benefits of the
stability enhancement system, you should normally
leave traction control on, but it may be necessary to turn
the system off if your vehicle is stuck in sand, mud,
ice or snow, and you want to "rock" your vehicle
to attempt to free it. See Rocking Your Vehicle to Get It
Out on page 4-30 and If Your Vehicle is Stuck in
Sand, Mud, Ice or Snow on page 4-29.

Traction Control Operation

The traction control system is part of the StabiliTrak
system. Traction control limits wheel spin by reducing
engine power to the wheels (engine speed
management) and by applying brakes.
The traction control system is enabled automatically
when you start your vehicle. It will activate and display
the TRACTION CONTROL ACTIVE message in the
DIC if it senses that one or both of the front wheels are
spinning or beginning to lose traction while driving.
If the brake traction-control system activates constantly or
if the brakes have heated up due to high-speed braking,
brake traction-control will be disabled and the TRACTION
CONTROL ACTIVE message will be displayed.
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