See also:

Languages
The vehicle supports English, French (Canadian), and Spanish. The default language is English. Turn the TUNE/MENU knob to highlight the language. Press TUNE/MENU to change the display language. ...

Your Responsibility
Increase the volume of the radio if the OnStar advisor cannot be heard. If the light next to the OnStar buttons is red, the system may not be functioning properly. Press and request a vehicle ...

Transportation Options
Warranty service can generally be completed while you wait. However, if you are unable to wait, GM helps to minimize inconvenience by providing several transportation options. Depending on t ...