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:

    Service Publications Ordering Information
    Service Manuals Service Manuals have the diagnosis and repair information on engines, transmission, axle suspension, brakes, electrical, steering, body, etc. Service Bulletins Service Bulletins ...

    How to Reset the Engine Oil Life System
    Reset the system whenever the engine oil is changed so that the system can calculate the next engine oil change. To reset the system: 1. Turn the ignition to ON/RUN with the engine off. 2. ...

    Rolling Ding Factory
    I noticed another anomaly that didn't stand out in previous tests: a flawed interior handle design. Doors usually have an unlatch handle and a separate grab handle nearby for closing the door. The ...