2005 Pontiac Grand Prix Owner's Manual - Page 148

Traction Control System (TCS) Warning Light If the traction control system warning light comes on and stays on for an extended period of time when the system is turned on, the vehicle needs service. Enhanced Traction System Warning Light If the vehicle has a 3800 supercharged V6 engine and the Traction Control System (TCS), one of these lights 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) on page 4-9 for more information. If the vehicle has the 3800 V6 engine and the Enhanced Traction System (ETS), one of these lights may come on for the following reasons. • If the Traction Control button located on the center console is pressed, turning the system off. This light will come on and stay on. To turn the system back on, press the button again and the warning light should turn off. See Enhanced Traction System (ETS) on page 4-10. • 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 system is affected by an engine-related problem, the system will turn off and the warning light will come on. 3-42