GM Service Manual Online
For 1990-2009 cars only

Object Number: 812700  Size: A1

This light comes on briefly when the ignition key is turned to START, but the engine is not running, as a check to show it is working.

If it does not, have the vehicle serviced by your dealer/retailer.

The light should go out once the engine starts. If it stays on, or comes on while driving, there could be a problem with the charging system. A charging system message in the Driver Information Center (DIC) can also appear. See DIC Warnings and Messages for more information. This light could indicate that there are problems with a generator drive belt, or that there is an electrical problem. Have it checked right away. If the vehicle must be driven a short distance with the light on, turn off accessories, such as the radio and air conditioner.


Object Number: 812700  Size: A1

This light will come on briefly when the ignition is turned to ON/RUN, but the engine is not running, as a check to show it is working.

It should go out once the engine has been started. If it stays on, or comes on while driving, there could be a problem with the charging system. A charging system Driver Information Center (DIC) message may also appear. See DIC Warnings and Messages for more information. This light could indicate that there are electrical problems. Have it checked right away. If a short distance must be driven with the light on, be certain to turn off all the accessories, such as the radio and air conditioner.