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
To sound the horn, press the center pad on the steering wheel. ...
Map Adjustments
The system lets you adjust the scale of view on the map. Also, as you drive,
the map scrolls automatically based on the direction of travel. ...
Transmission Messages
MANUAL SHIFT
This message displays when the automatic transmission is in manual mode. See
Manual Mode for more information.
TRANSMISSION HOT IDLE ENGINE
Notice: Do not drive the vehic ...






