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:
Customer Assistance for
Text Telephone (TTY)
Users (U.S. and Canada)
To assist customers who are deaf,
hard of hearing, or speech-impaired
and who use Text Telephones
(TTYs), Cadillac has TTY equipment
available at its Customer Assistance
Center. Any TTY user ...
Map Database Information
Use the Map Database Information/ Remove Map Data screen button to view the coverage
areas of the map database or to replace the map database.
1. Press the Map Database Information/Remove Map Dat ...
Address Entry
Address Entry: Enter either a city
or street to use the address entry destination method.
To enter a destination by inputting the city name first:
1. Press DEST.
2. Select (Address Entry).
3. ...