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:

    Trunk Release
    The trunk may be opened by pressing on the Remote Keyless Entry (RKE) transmitter or the touch pad located on the rear of the trunk above the license plate. See Trunk for more information. ...

    Gasoline Octane
    If the vehicle has the 3.9L V6 engine (VIN Code 1) or the 3.9L V6 engine (VIN Code M), use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less tha ...

    Parking/Turn Signal Lamp
    1. Open the hood. See Hood . 2. Remove the parking/turn signal lamp bulb socket from the headlamp assembly by turning counterclockwise. 3. Remove the bulb from the bulb socket by pulling it straig ...