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:

    Meet the Wedge
    The CTS sedan's exterior is angular, but the new CTS coupe takes the design theme to a new level. There are creases everywhere, and while most meet and intersect to create a unique-looking coupe t ...

    Engine Compartment Fuse Block (CTS-V Wagon)
    The underhood fuse block is located on the left side of the engine compartment. Lift the fuse block cover to access the fuses. The vehicle may not be equipped with all of the fuses and rel ...

    Manual Seats
    To adjust a manual seat: 1. Pull the handle at the front of the seat cushion. 2. Move the seat forward or rearward to adjust the seat position. 3. Release the handle to stop the seat from mov ...