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:
Special Application Services
Severe Commercial Use Vehicles Only: Lubricate chassis components every
5 000 km/ 3,000 mi.
Have underbody flushing service performed once a year.
...
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 can c ...
Safety Belts
This section of the manual
describes how to use safety belts
properly. It also describes some
things not to do with safety belts.
WARNING!
Do not let anyone ride where a
safety belt cannot b ...