Onstar.com

The website provides access to account information, manages the OnStar subscription, and allows viewing of videos of each service.

Get subscription plan pricing and sign up for OnStar Vehicle Diagnostics. Click on the “My Account” tab on the home page.

    See also:

    Object Detection System Messages
    PARK ASST BLOCKED SEE OWNERS MANUAL This message displays if there is something interfering with the park assist system. See Ultrasonic Parking Assist on page 9‑66 for more information. PARK A ...

    All-Wheel Drive
    Vehicles with this feature always send engine power to all four wheels. It is fully automatic, and adjusts itself as needed for road conditions. When using a compact spare tire on an AWD vehicle, t ...

    TPMS Sensor Matching Process
    Each TPMS sensor has a unique identification code. The identification code needs to be matched to a new tire/wheel position after rotating the tires or replacing one or more of the TPMS sensors. T ...