Usb Port (Base Radio) - GMC Sierra Denali 2017 Owner's Manual

Error Messages
If Disc Error displays and/or the disc
comes out, it could be for one of the
following reasons:
The disc has an invalid or
unknown format.
The disc is very hot. Try the disc
again when the temperature
returns to normal.
The road is very rough. Try the
disc again when the road is
smoother.
The disc is dirty, scratched, wet,
or upside down.
The air is very humid. Try the
disc again later.
There was a problem while
burning the disc.
The label is caught in the CD
player.
If Disc Player Error displays, it could
be for one of the following reasons:
The player temperature is
too high.
There are load or eject errors.
If the CD is not playing correctly for
any other reason, try a known
good CD.
If any error continues, contact your
dealer.
Playing an MP3 CD
To play an MP3 CD, follow the same
instructions as Playing an
Audio CD.
The following guidelines must be
met when creating an MP3 disc,
otherwise the CD might not play:
Sampling rate: 16 kHz,
22.05 kHz, 24 kHz, 32 kHz,
44.1 kHz, and 48 kHz.
Bit rates supported: 8, 16, 24,
32, 40, 48, 56, 64, 80, 96, 112,
128, 144, 160, 192, 224, 256,
and 320 kbps.
Maximum number of folders:
eight folders with 255 files per
folder.
Maximum of 1,000 files on
a disc.
Recorded on a CD-R or CD-RW.
Infotainment System
Root Directory
The root directory is treated as a
folder. All files contained directly
under the root directory are
accessed prior to any root directory
folders.
Empty Folders
If a root directory or folder is empty
or contains only folders, the player
advances to the next folder in the
file structure that contains a
compressed audio file. The empty
folder(s) are not displayed or
numbered.
No Folder
When the CD only contains
compressed audio files without any
folders, all files are under the root
folder.

USB Port (Base Radio)

Playing from a USB
A USB mass storage device or
Media Transfer Protocol (MTP)
device can be connected to the
USB port.
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