2007 Buick Lucerne Owner's Manual - Page 174

Instrument Panel Brightness D (Instrument Panel Brightness): This feature controls the brightness of the instrument panel lights. The knob for this control is located next to the exterior lamps control. Push the knob in and release when it pops out. Turn the knob clockwise to increase the brightness of the instrument panel lights and counter clockwise to decrease the brightness. Turning the knob completely clockwise to the detent will turn on the courtesy lamps. Entry Lighting If it is dark enough outside when you press the unlock button on the remote keyless entry transmitter, the interior courtesy lamps will turn on and stay on for about 40 seconds. The lamps can be turned off immediately by pressing the lock button on the remote keyless entry transmitter, turning the ignition key to RUN or activating the power door locks. Delayed Entry Lighting The interior lamps will turn on if you open the door when it is dark enough outside. When you close the door with the ignition off, the interior lamps will stay on for up to 25 seconds or until the ignition is turned to an on position. When the lamps turn off as a result of the 25 second timer or the ignition switch being turned on, the lighting will deactivate by way of the theater dimming effect. Locking the doors will override the delayed entry lighting feature and the lamps will turn off right away. Courtesy Lamps When any door is opened, several lamps turn on making it easier for you to enter and exit the vehicle. Turn the instrument panel brightness control completely clockwise to manually turn on these lamps. 174