GM Service Manual Online
For 1990-2009 cars only

Fasten Safety Belt Warning Lamp

The safety belt lamp on the instrument cluster will light when the ignition switch turns to the ON position. A timer in the instrument cluster controls the lamp. After a predetermined time, (approximately 5 seconds) the timer turns off and the lamp will remain off until the next ignition cycle.

Lamps-On Warning Alarm

The lamps-on warning alarm turns on if the headlamps or the park lamps remain on when the driver's door opens. The alarm remains displayed until the lights turn off or the driver's door closes.