2003 Pontiac Bonneville Owner's Manual - Page 159

The traction control system warning light may come on for the following reasons: If you turn the system off by pressing the TRACTION CONTROL button located on the center console, 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 4-9 for more information. Low Traction Active Light Your LOW TRAC (Low Traction Active) light may come on for one of the following reasons: LOW TRAC 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. If the traction control system is affected by an engine-related problem, the system will turn off and the warning light will come on. I f 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. An advanced computer-controlledsystem called Stabilitrak@ equipped) has come on to help (if your vehicle continue to go in the direction in which you're steering. This stability enhancement system activates when the computer senses that your vehicle is just starting to spin, as it might if you hit a patch of ice or other slippery spot on the road. When the system is on, you may hear a noise or feel a vibration in the brake pedal. This is normal. In these situations when the LOW TRAC light is on and the system is engaged, you should continue to steer in the direction you want to go. The system is designed to help you in bad weather or other difficult driving situations by making the most of whatever road conditions will permit. 3-44