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:

    Memory Features
    On vehicles with the memory package, memory buttons 1 and 2 on the driver door are used to save and recall memory settings for the driver seat cushion and seatback, outside mirrors, and th ...

    Jump Starting
    For more information about the vehicle battery, see Battery  . If the vehicle is a hybrid, see the hybrid supplement for more information. If the vehicle's battery has run down, you may wan ...

    Seat Position
    To adjust the seat: - Move the seat forward or rearward by moving the horizontal control forward or rearward. - Raise or lower the front or rear part of the seat cushion by moving the fr ...