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:

    Interior Lighting
    Dome Lamps The interior lamps control located in the overhead console controls both the front and rear interior lamps. : Turns the lamps off. : Turns the lamps on when any door is opened. : Keeps ...

    Antilock Brake System (ABS) Warning Light
    The Antilock Brake System (ABS) light comes on briefly when the engine is started. If the light does not come on, have the vehicle serviced by your dealer. If the ABS light comes on and stays on w ...

    Inflation - Tire Pressure
    Tires need the correct amount of air pressure to operate effectively. Notice: Do not let anyone tell you that under-inflation or over-inflation is all right. It is not. If your tires do not have e ...