The vehicle may have a Traction Control System (TCS) that limits wheel slip. The system operates if it senses that one or both of the front wheels are slipping or beginning to lose traction. When this happens, the system reduces engine power and/or applies brake pressure to the slipping wheel(s).

The system may be heard or felt while it is working, but this is normal.

TCS automatically comes on whenever the vehicle is started.

To limit wheel slip, especially in slippery road conditions, the system should always be left on. But, TCS can be turned off if needed.

flashes to indicate that TCS is active. See Traction Control System (TCS)/StabiliTrak® Light  for more information.

If there is a problem detected with TCS, SERVICE TRACTION CONTROL is displayed on the Driver Information Center (DIC).

See Ride Control System Messages . When this message is displayed and 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.

To reset:

1. Stop the vehicle.
2. Turn the engine off and waiting 15 seconds.
3. Start the engine.

If still comes on and stays on, the vehicle needs service.

Notice: Do not repeatedly brake or accelerate heavily when TCS is off. The vehicle's driveline could be damaged.

With Interactive Drive Control System

Without Interactive Drive Control System

TCS can be turned off by pressing and releasing the TCS/StabiliTrak button. When TCS is turned off, comes on, and the appropriate DIC message also displays. See Ride Control System Messages . With TCS turned off, the system does not limit wheel slip.

Driving should be adjusted accordingly. See Traction Off Light  for more information.

Press and release the TCS/StabiliTrak button 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. See If the Vehicle Is Stuck  for more information. See also Winter Driving  for information on using TCS when driving in snowy or icy conditions.

Adding non-GM accessories can affect the vehicle performance.

See Accessories and Modifications  for more information.