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:

    Rear Window Wiper/Washer
    The rear wiper control is located on the turn and lane-change lever. To turn the rear wiper on, slide the lever to a wiper position. (Off): Turns the wiper off. (Rear Wiper Delay): Turns on the ...

    Malfunction Indicator Lamp
    A computer system called OBD II (On-Board Diagnostics-Second Generation) monitors the operation of the vehicle to ensure emissions are at acceptable levels, to produce a cleaner environment. This ...

    Safety
    Standard safety items include four-wheel-disc antilock brakes and an electronic stability system. The system has rollover mitigation technology that senses imminent rollovers and applies individua ...