The vehicle has a Traction Control System (TCS) that limits wheel spin.
On a front-wheel-drive vehicle, the system operates if it senses that one or both of the front wheels are spinning or beginning to lose traction. When this happens, the system brakes the spinning wheel(s), and/or reduces engine power to limit wheel spin.
The system may be heard or felt while it is working, but this is normal.
TCS is on whenever the vehicle is started. To limit wheel spin, especially in slippery road conditions, the system should always be left on. But, TCS can be turned off if needed.

TCS/StabiliTrak Light
flashes to indicate that the traction
control system is active.
If there is a problem detected with TCS, SERVICE TRACTION CONTROL and SERVICE STABILITRAK may be displayed on the Driver Information Center (DIC).
When this message is displayed and d comes on and stays on, the vehicle is safe to drive but the system is not operational.
Driving should be adjusted accordingly.
If
comes on and stays on, reset the
system:
1. Stop the vehicle.
2. Turn the engine off and wait 15 seconds.
3. Start the engine.
If
still comes on and stays on at
a speed above 20 km/h (13 mph), see your dealer for service.
A chime may also sound when the light comes on steady.
Notice: Do not repeatedly brake or accelerate heavily when TCS is off. The vehicle's driveline could be damaged.

TCS/StabiliTrak Button
is located on the console.

TCS Off Light
TCS can be turned off by pressing and releasing
. When TCS is turned off,
comes on and the system will not limit
wheel spin.
Driving should be adjusted accordingly. Press and release
again to turn the system back on.
It may be necessary to turn the system off if the vehicle gets stuck in sand, mud, or snow and rocking the vehicle is required. If cruise control is being used when TCS activates, cruise control will automatically disengage. Press the cruise control button to reengage when road conditions allow.Adding non-GM accessories can affect the vehicle's performance.
StabiliTrak® SystemInstallation Procedure
Cut the body lock pillar outer panel in corresponding locations to fit
the remaining original panel. The sectioning joint should be
trimmed to allow a gap of one-and-one-half-times the metal thickness at the
sectioning joint
Create a 50 mm (2 in) backing plate from the unused portio ...
Courtesy/Illuminated Entry Lamps
The following lamps may be manually turned ON by placing the interior lamp
switch in the ON position, or by opening a door while the
switch is in the AUTO position.
The dome lamp
The liftgate lamps
Courtesy lamps
The courtesy lamp supply voltage circuit of the body control module (BCM) ...
Installation Procedure
Cut the front hinge pillar body in corresponding locations to fit the
remaining original panel. The sectioning joint should be trimmed
to allow a gap of one-and-one-half-times the metal thickness at the
sectioning joint.
Create a 50 mm (2 in) backing plate from the unused portion of ...