2007 GMC Yukon Owner's Manual - Page 203

Auxiliary Roof Mounted Lamp If your vehicle has this feature, this button includes wiring provisions for a dealer or a qualified service center to install an auxiliary roof lamp. This button is located on the overhead console. Instrument Panel Brightness D (Instrument Panel Brightness): This feature controls the brightness of the instrument panel lights. The knob for this feature is located next to the headlamp control. Turn the knob clockwise or counterclockwise to adjust the brightness of the instrument panel lights. Turn the knob clockwise to return the instrument panel cluster or radio display to full brightness when the headlamps or parking lamps are on. To turn on the dome lamps, turn the knob to the farthest clockwise position. When the wiring is connected to an auxiliary roof mounted lamp, pressing the button will activate the lamp and illuminate an indicator light near the button. Pressing the button again will turn off the roof mounted lamp. If your vehicle has this button, your vehicle may have the snow plow prep package. For further information see Adding a Snow Plow or Similar Equipment on page 396. Dome Lamps The dome lamps come on when a door is opened. The dome lamps can also be turned on by turning the knob, located next to the exterior lamps control, clockwise to the farthest position. In this position, the dome lamps will remain on whether a door is opened or closed. 203