1998 GMC Suburban Owner's Manual - Page 121

Reading Lamps If your vehicle has reading lamps, press the button next to the lamp to turn the lamp on. The lamps can be adjusted to point in the direction you want. Press the button again to turn the lamp off. If your vehicle has an overhead console with reading lamps, press the button next to the lamp to turn the lamp on. The lamps can be adjusted to point in the direction you want. Press the button again to turn the lamp off. You can use the DOME OVERRIDE button, located below the parking/headlamp knob, toset the dome lamps to come on automatically when the doors are opened, or remain off. To turn the lamps off, press the switch button once. With the switch button in this position. the dome lamps will remain off when the doors are open. To return the lamps to automatic operation, press the switch button again and return it to the "out" position. With the button in this position, the dome lamps will come on when you open the door. 2-43