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 from hea ...

    Transmission Messages
    ALL WHEEL DRIVE OFF If your vehicle has the All-Wheel Drive (AWD) system, this message displays when there is a compact spare tire on the vehicle, when the Antilock Brake System (ABS) warning light c ...

    Arming the System
    To arm the system, do one of the following: ○ Press on the RKE transmitter. ○ Lock the vehicle using the key in the driver door. The alarm automatically arms after about 30 seconds. Th ...