2009 GMC Acadia Owner's Manual - Page 136

3-14 Instrument Panel Dome Lamps The dome lamps automatically come on when a door is opened, unless the dome lamp override button is pressed in. The lamps can also be turned on and off by turning the instrument panel brightness control clockwise to the farthest position. Entry Lighting For vehicles with courtesy lamps, they come on and stay on for a set time whenever the unlock symbol is pressed on the Remote Keyless Entry (RKE) transmitter, if the vehicle has one. If a door is opened, the lamps stay on while it is open and then turn off automatically about 20 seconds after the door is closed. If the unlock symbol is pressed and no door is opened, the lamps turn off after about 20 seconds. Entry lighting includes a feature called theater dimming. With theater dimming, the lamps do not turn off at the end of the delay time. Instead, they slowly dim and then go out. The delay time is canceled if the ignition key is turned to ON/RUN or the power door lock switch is pressed. The lamps will dim right away. When the ignition is on, illuminated entry is inactive, which means the courtesy lamps will not come on unless a door is opened. Delayed Entry Lighting Delayed entry lighting illuminates the interior for a period of time after all the doors have been closed. The ignition must be off for delayed entry lighting to work. Immediately after all the doors have been closed, the delayed entry lighting feature continues to work until one of the following occurs: Dome Lamp Override The dome lamp override button is located next to the exterior lamps control. The dome lamp override sets the dome lamps to remain off or come on automatically when a door is opened. • The ignition is in ON/RUN. • The doors are locked. • An illumination period of about 25 seconds has elapsed. If during the illumination period a door is opened, the timed illumination period is canceled and the interior lamps remain on. E (Dome Lamp Override): Press the button in and the dome lamps remain off when a door is opened. Press the button again to return it to the extended position so that the dome lamps come on when a door is opened.