Radio Messages
Calibration Error: The audio system has been calibrated for the vehicle from the factory.
If Calibration Error displays, it means that the radio has not been configured properly for the vehicle and it must be returned to your dealer for service.
Locked or Loc: One of these messages will display when the THEFTLOCK® system has locked up the radio. Take the vehicle to your dealer for service.
If any error occurs repeatedly or if an error cannot be corrected, contact your dealer.
See also:
Fog Lamps
Fog Lamps
For vehicles with fog lamps, the control is located next to the exterior lamps control on the instrument panel, to the left of the steering column.
The ignition must be in the ON/RUN pos ...
Roadside Assistance Program
As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance
program. See Roadside Assistance Program (U.S. and Canada) on page 13‑7 or Roadside
Assistance Program (M ...
Order of Play
Compressed audio files are accessed in the following order:
• Playlists.
• Files stored in the root directory.
• Files stored in folders in the root directory.
Tracks are played in the follo ...





