GM Service Manual Online
For 1990-2009 cars only

Object Number: 868146  Size: A1

Your diesel engine has a glow plug system to aid in starting your vehicle.

For pickup models, this light shows that the system is functioning properly and tells you when the engine is ready to be started. For van models, an instrument panel WAIT TO START indicator light shows that the system is functioning properly and tells you when the engine is ready to be started.

Your vehicle has a fast warm-up glow plug system. The wait to start light will illuminate for a considerably shorter time than most diesel engines due to the rapid heating of the glow plug system.

For more information, see Starting the Diesel Engine .