GM Service Manual Online
For 1990-2009 cars only

Object Number: 807060  Size: A2

The Traction Control System (TCS) Warning light comes on briefly while starting the engine.

If it does not, have the vehicle serviced by your dealer/retailer. If the system is working normally the indicator light then goes off.

If the light stays on, or comes on while driving and a SERVICE TRACTION SYSTEM message displays in the Driver Information Center (DIC), the vehicle needs service.

This light comes on when the TCS is turned off and a TRACTION SYSTEM OFF message displays on the DIC. When this light is on, the TCS system does not limit wheel spin.

This light turns off when the TCS is turned back on and a TRACTION SYSTEM ON message displays on the DIC

See Traction Control System (TCS) and DIC Warnings and Messages for more information.

This light also comes on while the vehicle is in the Competitive Mode. See Active Handling System.