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:

    SBZA Detection Zones
    The SBZA sensor covers a zone of approximately one lane over from both sides of the vehicle, 3.5 m (11 ft). This zone starts at each side mirror and goes back approximately 5 m (16 ft). The hei ...

    XM™ Satellite Radio Service
    For vehicles equipped with the MyLink or IntelliLink infotainment system, see the separate MyLink/IntelliLink Features and Functions Guide for more information. Vehicles with an XM satellite ra ...

    Other Warning Devices
    If you carry reflective triangles, you can set them up at the side of the road about 300 feet (100 m) behind your vehicle. ...