See also:

Language — English/Metric
To change the language of the navigation screens or to change the navigation screens from English or metric, see Driver Information Center (DIC)   for more information. ...

Roadside Service (U.S. and Canada)
U.S.: 1-800-224-1400 Canada: 1-800-882-1112. Text Telephone (TTY) Users (U.S. Only): 1-888-889-2438. Service is available 24 hours a day, 365 days a year. ...

Buying New Tires
GM has developed and matched specific tires for the vehicle. The original equipment tires installed were designed to meet General Motors Tire Performance Criteria Specification (TPC Spec) system r ...