2003 Chevrolet Venture Owner's Manual - Page 226

Traction Control System (TCS) Warning Light If there's a brake system problem that is specifically related to traction control, the traction control system will turn off and the warning light will come on. If your brakes begin to overheat, the traction control system will turn off and the warning light will come on until your brakes cool down. e TRAC OFF United States Canada If the traction control system is affected by an engine-related problem, the system will turn off and the warning light will come on. If the traction control system warning light comes on and stays on for an extended period of time when the system is turned on, your vehicle needs service. Your vehicle may have a traction control system warning light. The traction control system warning light may come on for the following reasons: If you turn the system off by pressing the TCS button located in the instrument panel switchbank the warning light will come on and stay on. To turn the system back on, press the button again. The warning light should go off. See Traction Control System (TCS) on page 4-8 for more information. 3-43