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:
Horn
Press near or on the horn symbols on the steering
wheel pad to sound the horn. ...
Pulling A Trailer
Here are some important points:
• There are many different laws, including speed limit
restrictions, having to do with trailering. Make sure
the rig will be legal, not only where you live but
...
Languages
The vehicle supports English,
French (Canadian), and Spanish.
The default language is English.
To change the display language,
see Vehicle Personalization for more information. ...