OnStar

See also:

Fuel System Messages
FUEL LEVEL LOW This message displays when the vehicle is low on fuel. Refuel as soon as possible TIGHTEN GAS CAP This message displays when the fuel cap is not on tight. Tighten the fuel ca ...

Online Owner Center
Manage your vehicle (U.S.) at cadillac.com. Click on “Owners,” then “Manage my Cadillac/Owners Login.” Information and services customized for your specific vehicle — all in one convenient place. ...

Roadside Service
U.S.: 1-800-224-1400 Canada: 1-800-882-1112 TTY Users (U.S. only): 1-888-889-2438 Mexico: 01-800-466-0805 As the owner of a new Cadillac, you are automatically enrolled in the Roadside Service ...