Potential Issues

Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.

    See also:

    Rear Window Defogger
    The rear window defogger uses a warming grid to remove fog from the rear window. (Rear): Press this button to turn the rear window defogger on or off. An indicator light in the button will co ...

    Traction Off Light
    This light comes on briefly while starting the engine. If it does not, have the vehicle serviced by your dealer. If the system is working normally, the indicator light then goes off. The traction ...

    Horn
    Press near or on the horn symbols on the steering wheel pad to sound the horn. ...