2015 Buick Regal Owner Manual - Page 170

Lighting 6-5 Interior Lighting Instrument Panel Illumination Control Dome Lamps Reading Lamps There are front and rear reading lamps. The interior lamps control in the overhead console controls both the front and rear interior lamps. The brightness of the instrument panel lighting and steering wheel controls can be adjusted. To operate: The front reading lamps are in the overhead console. 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.