2007 GMC Yukon Owner's Manual - Page 204

Dome Lamp Override E (Dome Lamp Override): Press the dome override button, located next to the exterior lamps control, to keep the dome lamps off when a door is open. To set the lamps to the automatic operation, press the button again so that it is extended. With the button in this position, the dome lamps will come on when a door is opened. Reading Lamps If your vehicle has reading lamps they are located on the overhead console. To turn on the reading lamps, press the button located next to each lamp. To turn them off, press the button again. The lamps can be adjusted to point in the direction you want. Your vehicle may also have reading lamps in other locations. To turn the lamps on or off, press the button located next to the lamp. The lamps are fixed and cannot be adjusted. Entry Lighting Your vehicle has an illuminated entry feature. When the doors are opened, the dome lamps will come on if the dome override button is in the extended position. If the dome override button is pressed in, the lamps will not come on. Battery Run-Down Protection This feature shuts off the dome, and reading lamps if they are left on for more than 10 minutes when the ignition is off. This will keep the battery from running down. Exit Lighting With exit lighting, the interior lamps will come on when you remove the key from the ignition. They will turn off automatically in 20 seconds. The lights will not come on if the dome override button is pressed in. 204