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:

    Voice Pass-Thru
    Voice pass-thru allows access to the voice recognition commands on the cell phone. See the cell phone manufacturer's user guide to see if the cell phone supports this feature. To access contacts stor ...

    Content Theft-Deterrent
    Your vehicle may have the optional content theft-deterrent alarm system. To activate the theft-deterrent system: 1. Open the door. 2. Lock the door with the power door lock switch or the Remote ...

    Emissions Inspection and Maintenance Programs
    Some state/provincial and local governments have or may begin programs to inspect the emission control equipment on your vehicle. Failure to pass this inspection could prevent you from getting a v ...