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:

    Active Fuel Management®
    Vehicles with V8 engines may have Active Fuel Management™. This system allows the engine to operate on either all or half of its cylinders, depending on the driving conditions. When less power is ...

    TIRE LOW ADD AIR TO TIRE
    On vehicles with the Tire Pressure Monitor System (TPMS), this message displays when the pressure in one or more of the vehicle’s tires is low. This message also displays LEFT FRONT, RIGHT ...

    Door Unlock Options
    This allows selection of which doors will unlock when pressing the unlock button on the RKE transmitter. Press the MENU/SELECT knob when Door Unlock Options is highlighted. Turn the knob to selec ...