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:

    Power Outlets
    Accessory power outlets can be used to plug in electrical equipment, such as a cell phone or MP3 player. There are three accessory power outlets. The power outlets located below the climate c ...

    Manual Operation
    (Power): Press to turn the climate control system on or off. When the climate control system is turned off the air inlet defaults to outside air. (Fan Control): Press the buttons to increa ...

    Battery
    Refer to the replacement number shown on the original battery label when a new battery is needed. See Engine Compartment Overview for battery location. WARNING Battery posts, terminals, and r ...