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:

    Mobile Apps
    Mobile apps are available for download through iTunes® to then access the iPhone® App Store and Google™ Marketplace for Android™. Search for the apps to download. The apps are free of charge; howe ...

    Map Adjustments
    The system lets you adjust the scale of view on the map. Also, as you drive, the map scrolls automatically based on the direction of travel. ...

    Cooling System
    The cooling system allows the engine to maintain the correct working temperature. A. Coolant Surge Tank B. Coolant Surge Tank Pressure Cap C. Engine Cooling Fan(s) (Out of View) WARNING An ...