GM Service Manual Online
For 1990-2009 cars only

Object Number: 814429  Size: A1

If the vehicle has the Traction Control System (TCS), this light may come on for the following reasons:

    • The traction control button, located on the center console, is pressed, turning the system off. The light will stay on. To turn the system back on, press the button again and the warning light should go out. See Traction Control System (TCS) for more information.
    • If there is a brake system problem that is specifically related to traction control, the TCS will turn off and the warning light will come on.
    • If the brakes begin to overheat, the TCS will turn off and the warning light will come on until the brakes cool down.

If the TCS warning light comes on and stays on for an extended period of time when the system is turned on, the vehicle needs service.