GM Service Manual Online
For 1990-2009 cars only

The dome lamps, located in the front and cargo area of the vehicle, come on when any door is opened.

Turn the dome lamps on by turning the thumbwheel, located next to the exterior lamps control, all the way up. In this position, the lamps remain on whether a door is opened or closed.

Reading Lamps

Press the lens on the lamps to turn each reading lamp on or off.

These lamps will not come on with the dome lamps.