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:

    PARK BRAKE RELEASED
    For vehicles with the electric parking brake, this message displays when the parking brake has been released from the set position. See the electric parking brake information under Parking Br ...

    Automatic Transmission
    The shift lever is located on the center console between the front seats. There are several different positions for the shift lever. P (Park): This position locks the rear wheels. Use this ...

    Using the System
    When the driver shifts the vehicle into R (Reverse), the video image automatically appears on the navigation screen, or on the inside rearview mirror. Once the driver shifts out of R (Revers ...