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:

    Checking Coolant
    The vehicle must be on a level surface when checking the coolant level. The engine coolant reservoir is located in the engine compartment on the driver side of the vehicle. See Engine Compar ...

    PARK BRAKE RELEASED
    For vehicles with the electric parking brake, this message displays when the parking brake has been released from the set position. See the electric parking brake information under Parking Br ...

    Trip/Fuel Menu Items
    (Trip/Fuel): Press to scroll through the following menu items: Odometer Press the trip/fuel button until ODOMETER displays. This display shows the distance the vehicle has been driven in either ...