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:

    Engine Compartment Overview
    A. Radiator Pressure Cap. See Cooling System on page 10‑14. B. Engine Coolant Recovery Cap. See Cooling System on page 10‑14. C. Remote Negative (−) Terminal. See Jump Starting o ...

    Tips and Troubleshooting Chart
    Problem Recommended Action There is no power. The ignition might not be turned to ON/RUN or ACC/ACCESSORY. The picture does not fill the screen. There are black bord ...

    Tire Pressure Monitor Operation
    This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS is designed to warn the driver when a low tire pressure condition exists. TPMS sensors are mounted onto each tire and wheel as ...