Traction Control Operation - Buick 2005 Terraza Owner's Manual

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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 3-45.
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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.
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 4-32 and If Your Vehicle is Stuck in Sand,
Mud, Ice or Snow on page 4-31.
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is no longer available

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 to each individual
wheel (brake-traction control) as necessary.
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 any of the wheels are spinning or
beginning to lose traction while driving an all-wheel-drive
vehicle, or if one or both of the front wheels are
spinning or beginning to lose traction while driving a
front-wheel-drive vehicle.
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. In the limited mode, the traction control
system will only use engine traction-control and is limited
in its ability to provide optimal performance since the
system will not utilize brake traction-control to control
slip on the drive wheels. The system will return to normal
operation after the brakes have cooled. This can take
up to two minutes or longer depending on brake usage.
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