2004 Pontiac Grand Am Owner's Manual - Page 188

This light will come on when your Enhanced Traction System is limiting wheel spin. See Enhanced Traction System Active Light on page 3-29. The Enhanced Traction System operates in all transaxle shift lever positions. But the system can upshift the transaxle only as high as the shift lever position you've chosen, so you should use the lower gears only when necessary. See Automatic Transaxle Operation on page 2-24. When the system is on and the parking brake is fully released, this warning light will come on to let you know if there's a problem. You may feel or hear the system working, but this is normal. This light will also come on when the anti-lock brake system is working. If your vehicle is in cruise control when the enhanced traction system begins to limit wheel spin, the cruise control will automatically disengage. When road conditions allow you to safely use it again, you may re-engage the cruise control. See Cruise Control on page 3-10. See Enhanced Traction System Warning Light on page 3-28. When this warning light is on, the system will not limit wheel spin. Adjust your driving accordingly. 4-10