Portable Audio Devices
This vehicle may have an auxiliary input located on the radio faceplate and a USB port located in the instrument panel storage area.
External devices such as iPods™, laptop computers, MP3 players, CD changers, USB storage devices, etc. can be connected to the auxiliary port using a 3.5mm (1/8 in) input jack or the USB port depending on the audio system.
See Auxiliary Devices on page 7‑36.
See also:
Roadside Assistance Program
U.S.: 1-888-881-3302
TTY Users (U.S.): 1-888-889-2438
Canada: 1-800-268-6800
Mexico: 01-800-466-0801
As the owner of a new GMC, you are automatically enrolled in the Roadside Assistance program.
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Trailer Brake DIC Display Page
The ITBC system displays messages on the vehicle’s Driver Information Center (DIC). See Driver Information Center (DIC) on page 5‑33 for more information.
The display page indicates Trailer G ...
Order of Play
Compressed audio files are accessed in the following order:
• Playlists (Px).
• Files stored in the root directory.
• Files stored in folders in the root directory.
Tracks are played in the ...





