TTY Users

OnStar has the ability to communicate to the deaf, hard–of–hearing, or speech–impaired customers while in the vehicle.

The available dealer–installed TTY system can provide in-vehicle access to all of the OnStar services, except Virtual Advisor and OnStar Turn–by–Turn Navigation.

    See also:

    Windows
    Premium Trim Shown, Up-Level Similar The driver door has switches that control all windows, the passengers door switch only control that window. The power windows work when the ignition is in ON/ ...

    Airbag System Messages
    SERVICE AIR BAG This message displays when there is a problem with the airbag system. Have the vehicle serviced by your dealer immediately. See Airbag Readiness Light for more information. ...

    Anti-theft Alarm System Messages
    SERVICE THEFT DETERRENT SYSTEM This message displays when there is a problem with the theft-deterrent system programmed in the key. A fault has been detected in the system which means that t ...