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:
Cruise Control Messages
APPLY BRAKE BEFORE CRUISE
If this message displays when attempting to activate cruise control, apply the
brake pedal and try again.
CRUISE SET TO XXX
This message displays when the cruise control ...
Fuel Additives
To provide cleaner air, all gasolines in the United States are now required to contain additives that help prevent engine and fuel system deposits from forming, allowing the emission control system to ...
Vehicle Messages
Messages are displayed on the DIC to notify the driver that the status of the
vehicle has changed and that some action may be needed by the driver to correct
the condition. Multiple messages may a ...