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:

    Compass
    The vehicle may have a compass display on the Driver Information Center (DIC). The compass receives its heading and other information from the Global Positioning System (GPS) antenna, StabiliTrak, a ...

    2013 Cadillac ATS drive review
    It's a great job, if you like the work. Performance engineer Kevin Zelenka gets paid to drive in what he calls the "nonlinear zone"--a marginal-grip region of time and space where he kee ...

    Ride & Handling
    Our test CTS had the optional performance suspension, and the car felt as firm as one of the high-performance V-Series versions that Cadillac sells, with harsh, jarring responses over bumps. It's ...