GM Service Manual Online
For 1990-2009 cars only

Object Number: 808241  Size: A1

The engine coolant temperature warning light will come on when the engine has overheated.

If this happens you should pull over and see Engine Overheating for more information.

Notice: Driving with the engine coolant temperature warning light on could cause the vehicle to overheat. See Engine Overheating. The vehicle's engine could be damaged, and it might not be covered by the vehicle warranty. Never drive with the engine coolant temperature warning light on.

This light will come on and flash when the temperature of the automatic transmission fluid is too high. If this happens you should pull over, shift into PARK (P) and let the engine idle until the light goes out.

This light will also come on when starting your vehicle. If it doesn't, have your vehicle serviced.