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:

    Cooling System
    The cooling system allows the engine to maintain the correct working temperature. A. Engine Cooling Fan (Out of View) B. Engine Coolant Surge Tank and Pressure Cap WARNING An electric engine c ...

    Dinghy Towing
    Dinghy Towing Notice: If the vehicle is towed with all four wheels on the ground, the drivetrain components could be damaged. The repairs would not be covered by the vehicle warranty. Do ...

    Window Messages
    OPEN, THEN CLOSE DRIVER WINDOW This message is displayed when the window needs to be reprogrammed. If the vehicle's battery has been recharged or disconnected, you will need to reprogram each front ...