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:

    Automatic Dimming Mirror
    If the vehicle has the automatic dimming mirror, the driver outside mirror automatically adjusts for the glare of the headlamps from behind. This feature is controlled by the on and off setting on th ...

    Jump Starting
    For more information about the vehicle battery, see Battery on page 10‑26. Jump starting can be used on vehicles with run&-down batteries by using jumper cables and another vehicle. WARN ...

    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. ...