OnStar Services

See also:

Front Turn Signal/Parking/Side Marker Lamps (Base and Up-Level)
To replace the front turn signal, parking lamp, or sidemarker lamp: 1. For the driver side bulb, remove the windshield washer bottle filler neck by firmly pulling it straight up and out of the bottle ...

Instrument Panel Brightness
Press the knob located next to the exterior lamps knob to extend it. Turn the knob to adjust the instrument panel lights. Turn the knob all the way up to turn on the interior lamps. Press the k ...

Courtesy Lamps
The courtesy lamps come on automatically when any door is opened and the dome lamp is in the door position. ...