Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Additional Program
Information
All program options, such as shuttle
service, may not be available at
every dealer. Please contact your
dealer for specific information
about availability. All Courtesy
Transportation arrang ...
Setting the Clock (Radio with CD and Touchscreen)
The clock menu can be only be used with the radio on while in ON/RUN or ACC/ACCESSORY.
To set the time:
1. Press the CONFIG button to enter the menu options or press H. Turn the TUNE/MENU
knob to ...
Roadside Assistance Program
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 a year.
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