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:
Fog Lamps
To turn on the fog lamps, the ignition and the headlamps or parking lamps must be on.
If the fog lamps are turned on while the exterior lamp switch is in the AUTO position, the headlamps come on ...
Engine Cooling When Trailer Towing
The cooling system may temporarily overheat during severe operating
conditions. See Engine Overheating . ...
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
it impossible to steal. ...