GM Service Manual Online
For 1990-2009 cars only

This vehicle has a feature to help prevent the battery from being drained. The trunk lamp and reading lamps automatically turn off 10 minutes after the key is turned to LOCK/OFF.

The lamps are reactivated if any of the following occur:

    • The ignition is turned on.
    • The vehicle is unlocked.
    • The trunk is opened.
    • The reading lamps are turned on.