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:

    Windows
    WARNING Leaving children, helpless adults, or pets in a vehicle with the windows closed is dangerous. They can be overcome by the extreme heat and suffer permanent injuries or even death fro ...

    Ride Control System Messages
    SERVICE REAR AXLE This message displays when there is a problem with the All-Wheel Drive (AWD) System. See your dealer for service. SERVICE STABILITRAK This message displays if there is a pr ...

    Retained Accessory Power (RAP)
    These accessories can be used after the engine is turned off: - Audio system (up to 10 minutes or driver door is opened). - Power windows, sunroof (if equipped), and power outlets (up to 10 minu ...