GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-11349177) - 2018 - crc - 5/11/17
Infotainment System
191
Audio Players
Avoiding Untrusted Media
Devices
When using media devices such as
CDs, DVDs, Blu-ray Discs, SD
cards, USB devices, and mobile
devices, consider the source.
Untrusted media devices could
contain files that affect system
operation or performance. Avoid use
if the content or origin cannot be
trusted.
CD Player
If the vehicle is equipped with a CD
player, it can be used for CD and
MP3 audio.
With the vehicle on, insert a disc
into the slot, label side up. Press the
MEDIA button to select CD as a
source.
The system is capable of
playing most:
.
Audio CDs
.
CD-R
.
CD-RW
.
MP3 or unprotected WMA
formats
When playing any compatible
recordable disc, the sound quality
can be reduced due to disc quality,
the method of recording, the quality
of the music that has been
recorded, or the way the disc has
been handled.
There can be increased skipping,
difficulty in finding tracks, and/or
difficulty in loading and ejecting.
If these problems occur, check the
disc for damage or try a known
good disc.
To avoid damage to the CD player:
.
Do not use scratched or
damaged discs.
.
Do not apply labels to discs. The
labels could get caught in the
player.
.
Insert only one disc at a time.
.
Keep the loading slot free of
foreign materials, liquids, and
debris.
.
Use a marking pen to label the
top of the disc.
Loading and Ejecting Discs
To load a disc:
1. Turn the vehicle on.
2. Insert a disc into the slot, label
side up. The player pulls it in
the rest of the way. If the disc
is damaged or improperly
loaded, there is an error and
the disc ejects.
Playing an Audio CD
Press the MEDIA button on the
faceplate until CD is selected.
On the CD main page, either a track
number displays at the beginning of
each track, or Song, Artist, and
Album information displays when
available.
Use the following screen controls to
play the disc:
t
:
While on the CD main page:
.
Press to seek to the beginning of
the current or previous track.
If the track has been playing for
less than five seconds, it seeks
