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:

    Airbag Readiness Light
    This light shows if there is an electrical problem. The system check includes the airbag sensor, the pretensioners, the airbag modules, the wiring, and the crash sensing and diagnostic module. For mo ...

    Hazard Warning Flashers
    (Hazard Warning Flasher): Press and momentarily hold this button located on the instrument panel above the climate control system, to make the front and rear turn signal lamps flash on and off. ...

    Customization Menu Items
    (Customization): Press this button to enter the feature settings menu. This display allows you to customize the feature settings on your vehicle. See DIC Vehicle Customization for more info ...