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:

    Engine Compartment Overview
    CTS 3.6L V6 Engine Shown, 3.0L V6 Engine Similar A. Windshield Washer Fluid Reservoir. See Washer Fluid. B. Engine Compartment Fuse Block (CTS V Wagon) or Engine Compartment Fuse Block (CT ...

    Unlocked Door Anti Lock Out
    When on, this feature will keep the driver door from locking when the door is open. If Off is selected, the Delayed Door Lock menu will be available and the door will lock as programmed through this ...

    Timer
    This display can be used as a timer. To start the timer, press SET/CLR while Timer is displayed. The display will show the amount of time that has passed since the timer was last reset. To stop t ...