2003 Buick Century Owner's Manual - Page 142

The anti-lock brake system warning light will come on briefly when you turn the ignition key to RUN. This is normal. If the light doesn't come on then, have it fixed so it will be ready to warn you if there is a problem. 0 If the Enhanced Traction System warning light comes on and stays on for an extended period of time when the system is turned on, your vehicle needs service. Adjust your driving accordingly. The warning light will come on when you set your parking brake with the engine running, and it will stay on if your parking brake doesn't release fully. If the transaxle shift lever is in any position other than FIRST (1) or SECOND (2) and the warning light stays on after your parking brake is fully released, it means there's a problem with the system. Enhanced Traction System Warning Light If your vehicle has the Enhanced Traction System, the warning light may come on for the following reasons: 0 TRAC OFF ' If You turn the system Off by shifting to or FIRST ( l ) , the warning light will come on and stay on. To turn the system back on, shift to (1 ' If the traction control system is affected by an engine-related problem, the system will turn off and the warning light will come on. When this warning light is on, the system will not limit wheel spin. Adjust your driving accordingly. 0 3-33