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:

    Instrument Cluster
    English Shown, Metric Similar ...

    Service Vehicle Messages
    SERVICE AC SYSTEM This message is displayed if there is a problem with the air conditioning system. Take the vehicle to your dealer for service. SERVICE POWER STEERING This message is displa ...

    Steering Wheel Controls
    If equipped, some audio controls can be adjusted at the steering wheel. (Next): Press to go to the next favorite radio station, track on a CD, or folder on an iPod® or USB device. (Previous/En ...