See also:

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. ...

Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five ...

OnStar® Destination Download (US and Canada)
OnStar Destination Download (if equipped) is a service available for OnStar subscribers that makes operating your navigation system much simpler. It allows subscribers to request and receive navig ...