2015 Cadillac XTS Owner Manual - Page 184

Lighting The brightness of the displays automatically adjusts based on outdoor lighting. The instrument panel illumination control will set the lowest level to which the displays will automatically be adjusted. 6-7 Dome Lamps The dome lamp is in the overhead console. Reading Lamps There are reading lamps on the overhead console and over the rear passenger doors. These lamps come on automatically when any door is opened. To manually turn the reading lamps on or off: Courtesy Lamps The courtesy lamps come on when any door is opened and the dome lamp is in the door position. To change the dome lamp settings, press: OFF: Turns the lamp off, even when a door is open. DOOR: The lamp comes on when a door is opened. ON: Turns the lamp on. Press m or n next to each overhead console reading lamp.