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:

    Trailer Towing
    Before pulling a trailer, there are three important considerations that have to do with weight: ○ The weight of the trailer ○ The weight of the trailer tongue ○ The total weight ...

    Vehicle and Power Issues
    OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if ...

    Climate Control Systems (with Heater Only)
    With this system the heating and ventilation can be controlled. A. Fan Control B. Temperature Control C. Air Delivery Mode Control Temperature Control: Turn clockwise or counterclockwise to incre ...