2001 Buick Century Owner's Manual - Page 136

Enhanced Traction System Warning Light (3100 V6 Engine) D 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. 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. The Enhanced Traction System warning light may come on for the following reasons: When this warning light is on, the system will not limit wheel spin. Adjust your driving accordingly. D If you turn the system off by shifting to SECOND (2) or FIRST (1), the warning light will come on and stay on. To turn the system back on, shift to THIRD (3) or AUTOMATIC OVERDRIVE ( ). See "Enhanced Traction System" in the Index. Enhanced Traction System Active Light The light will come on when your Enhanced Traction System is limiting wheel spin. You may feel or hear the system working, but this is normal. Slippery road conditions may exist if this light comes on, so adjust your driving accordingly. B D 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. 2-66