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:
High-Beam On Light
The high-beam on light comes on when the high-beam headlamps are in use.
See Headlamp High/Low-Beam Changer for more information. ...
Driver Information Center (DIC)
The Driver Information Center (DIC) displays information about the vehicle. It also displays warning messages if a system problem is detected. See Vehicle Messages for more information.
All mes ...
Maintenance when Trailer
Towing
The vehicle needs service more
often when pulling a trailer. See the
Maintenance Schedule. Things that are
especially important in trailer
operation are automatic
transmission fluid, engine ...