Radios with CD and DVD Audio Output
Only one audio source can be heard through the speakers at one time.
An audio source is defined as DVD slot, CD slot, XM, FM/AM, Front Auxiliary Jack, or Rear Auxiliary Jack.
Press 
to turn the radio on.
The radio can be heard through all of the vehicle speakers.
Front seat passengers can listen to the radio (AM, FM, or XM) by pressing BAND or DVD/CD AUX to select the CD slot, DVD slot, front or rear auxiliary input (if available).
If a playback device is plugged into the radio’s front auxiliary input jack or the rear auxiliary jack, the front seat passengers are able to listen to playback from this source through the vehicle speakers.
See Auxiliary Devices on page 7‑36 or “Audio/Video (A/V) Jacks” under, Rear Seat Entertainment (RSE) System on page 7‑38 for more information.
In some vehicles, depending on audio options, the rear speakers can be muted when the RSA power is turned on. See Rear Seat Audio (RSA) System on page 7‑47 for more information.
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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Object Detection System Messages
PARK ASST BLOCKED SEE OWNERS MANUAL
This message displays if there is something interfering with the park assist system. See Ultrasonic Parking Assist on page 9‑66 for more information.
PARK A ...
Finish Damage
Quickly repair minor chips and scratches with touch-up materials available from your dealer to avoid corrosion. Larger areas of finish damage can be corrected in your dealer's body and paint shop. ...