Pontiac 2005 Grand Prix - Manual (Page 251)

Traction Control System (TCS)
If the vehicle has the 3800 Supercharged V6 engine, it
has a Traction Control System (TCS) that limits wheel
spin. This is especially useful in slippery road conditions.
The system operates only if it senses that one or both of
the front wheels are spinning or beginning to lose
traction. When this happens, the system works the front
brakes and reduces engine power to limit wheel spin.
This symbol, along
with the TRACTION
CONTROL ACTIVE
message, comes on the
DIC screen when the
system is active.
You may feel or hear the system working, but this
is normal.
When the traction control
system is not working, this
symbol will come on the
instrument panel cluster.
This symbol, along with
the message TRACTION
CONTROL OFF will
display in the DIC for
three seconds when the
traction control system
is disabled.
If there is a problem with the system, the service
traction system will also appear on the DIC. When these
symbols and messages appear on the instrument
panel and the DIC, the system will not limit wheel spin.
Adjust driving accordingly.
The traction control system automatically comes on
whenever the vehicle is started. To limit wheel spin,
especially in slippery road conditions, always leave the
system on. But the traction control system can be turned
off if needed. The system should be turned off if the
vehicle ever gets stuck in sand, mud, or snow and rocking
the vehicle is required. See Rocking Your Vehicle to Get
It Out on page 4-33 and If You Are Stuck: In Sand, Mud,
Ice or Snow on page 4-32 for more information.
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