GM Service Manual Online
For 1990-2009 cars only

The interior lights come on if the door is unlocked using the key or remote keyless entry transmitter and the ignition is in LOCK/OFF. The lights remain on for about 20 seconds and then goes out, except under the following conditions:

    • All the doors are locked using the key.
    • The lock is pressed on the power door lock switch.
    • The lock is pressed on the remote keyless entry transmitter.

The interior lights stay on while any door or the liftgate is open, and go out when all doors and the liftgate are closed. The entry lighting is cancelled when any door is opened

The lights may stay on for up to 25 seconds after all doors have been closed if they have not been locked. See Delayed Lighting.

To turn the entry lighting feature off or on, see DIC Vehicle Personalization.