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:

    When the Light Flashes First and Then Is On Steady
    If the light flashes for about a minute and then stays on, there may be a problem with the TPMS. If the problem is not corrected, the light will come on at every ignition cycle. See Tire Pres ...

    Engine Power Messages
    ENGINE POWER IS REDUCED This message displays and a chime sounds when the cooling system temperature gets too hot and the engine further enters the engine coolant protection mode. See Engine Over ...

    Engine Air Cleaner/Filter
    See Engine Compartment Overview   for the location of the engine air cleaner/filter. Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oi ...