OnStar Mobile App
With an iPhone® or Android™-based mobile device, an OnStar mobile app can be downloaded. The vehicle can be remote started, if equipped, or the doors can be unlocked from anywhere there is cell phone service. It can also check the fuel level, tire pressure, and oil life.
It can connect to an OnStar Advisor anytime. For OnStar mobile app compatibility or further information, see www.onstar.com.
See also:
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 p ...
Other Information
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SERVICE POWER STEERING
This message displays if a problem
is detected with the speed variable
assist steering system. When this
message is displayed, you may
notice that the effort required to
steer the vehicle in ...






