2013 Buick LaCrosse Owner Manual - Page 159

Lighting To turn on the fog lamps, the ignition and the headlamps or parking lamps must be on. If the fog lamps are turned on while the exterior lamp switch is in the AUTO position, the headlamps come on automatically. 6-5 Interior Lighting Instrument Panel Illumination Control Dome Lamps # (Fog Lamps): Press to turn on or off. An indicator light on the instrument cluster comes on when the fog lamps are on. Some localities have laws that require the headlamps to be on along with the fog lamps. The brightness of the instrument panel lighting and steering wheel controls can be adjusted. The interior lamps control located in the overhead console controls both the front and rear interior lamps. To operate: D (Instrument Panel Illumination): Move and hold the thumbwheel up or down to brighten or dim the lights. ( (Off): Turns the lamps off. H (Door): Turns the lamps on when any door is opened. ' (On): Keeps the lamps on all the time. The interior lamps turn on automatically if the airbags are deployed.