2001 Pontiac Grand Am Owner's Manual - Page 131

D The warning light will come on when you set your Enhanced Traction System Active Light When your Enhanced Traction System is limiting wheel spin, this light will come on. parking brake with the engine running, and it will stay on if your parking brake doesn't release fully. If the system is turned on and the warning light stays on after your parking brake is fully released, it means there's a problem with the system. D If the traction control system is affected by an engine-related problem, the system will turn off and the warning light will come on. D If the vehicle is driven on a severely rough road, the warning light may come on momentarily but will go off again when the vehicle leaves the rough surface. Slippery road conditions may exist if the Enhanced Traction System active light comes on, so adjust your driving accordingly. The light will stay on for a few seconds after the Enhanced Traction System stops limiting wheel spin. This light will also come on when the anti-lock brake system is active. The Enhanced Traction System active light also comes on briefly when you turn the ignition key to ON. If the light doesn't come on then, have it fixed so it will be there to tell you when the system is active. If the Enhanced Traction System warning light comes on and stays on for an extended period of time when the system is turned on and the parking brake is fully released, your vehicle needs service. 2-61