See also:

Roadside Assistance Program (U.S. and Canada)
For U.S.-purchased vehicles, call 1-800-252-1112; (Text Telephone (TTY): 1-888-889-2438). For Canadian-purchased vehicles, call 1-800-268-6800. Service is available 24 hours a day, 365 days ...

Tire Pressure Light
This light will come on briefly when you turn the ignition to RUN. This light will also come on when one or more of your tires are significantly underinflated. A CHECK TIRE PRESSURE DIC mes ...

Connections
OnStar Hands-Free Calling allows calls to be made and received from the vehicle. The vehicle can also be controlled from a cell phone through the OnStar mobile app. See www.onstar.com for coverage ...