See also:

How OnStar Service Works
Automatic Crash Response, Emergency Services, Crisis Assist, Stolen Vehicle Assistance, Vehicle Diagnostics, Remote Door Unlock, Roadside Assistance, Turn-by-Turn Navigation, and Hands-Free ...

Passenger Compartment Air Filter
The filter removes dust, pollen, and other airborne irritants from outside air that is pulled into the vehicle. The filter should be replaced as part of routine scheduled maintenance. See Scheduled ...

Exterior Lighting
The exterior lamp control is located on the instrument panel on the outboard side of the steering wheel. : Turns off the exterior lamps. The knob returns to the AUTO position after it is released ...