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:

    Passenger Sensing System
    If the vehicle has the passenger airbag status indicator pictured in the following illustration, then the vehicle has a passenger sensing system for the right front passenger position. The passeng ...

    Cargo Management System (Wagon Only)
    Press the bottom of the load floor handle assembly to lift the top on the handle. Pull up on the handle to open the cargo management system. The cover can be opened to two positions to ...

    When to Check and Change Automatic Transmission Fluid
    It is usually not necessary to check the transmission fluid level. The only reason for fluid loss is a transmission leak or overheating the transmission. If a small leak is suspected, then use the ...