GM Service Manual Online
For 1990-2009 cars only

Object Number: 806884  Size: A1

This light will come on briefly when the engine is started.

If this light comes on and stays on while you are driving. It means that either the engine coolant temperature gage or the engine oil pressure gage may be showing a reading in the warning zone.

When the check gages light comes on, you will also hear a warning tone. The tone and the light will stay activated until the problem is corrected.

This light may also come on if your vehicle is has automatic engine shutdown system and engine shutdown has begun. See Engine Alarm and Automatic Shutdown.