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:

    Video Screen
    The video screen is located in the overhead console. To use the video screen, push forward on the release latch and the screen will fold down. Adjust the screen’s position as desired. When the ...

    Tire Pressure Light
    For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. ...

    Using the Digit Store Command
    The digit store command allows a phone number to be stored by entering the digits individually. 1. Press . ► For vehicles without a navigation system, the system responds “Ready,” followe ...