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:
Roadside Assistance Program
In the U.S. call 1-800-252-1112.
In Canada call 1-800-268-6800.
Service available 24 hours a day, 365 days a year.
As the proud owner of a new Buick vehicle, you
are automatically enrolled in th ...
Vehicle Data Recording and
Privacy
Your GM vehicle has a number of sophisticated
computers that record information about the vehicle’s
performance and how it is driven. For example, your
vehicle uses computer modules to monitor ...
Brake System Warning Light
The vehicle brake system consists of two hydraulic circuits. If one circuit is
not working, the remaining circuit can still work to stop the vehicle. For normal
braking performance, both circuits ...