GMC 2014 Yukon/Yukon XL Owner's Manual page 210

Turn to select tracks on
the disc that is currently playing.
Press to go to the start of
the current track, if more than
five seconds on the CD have
played.
Press to go to the previous track if
less than five seconds on the CD
have played.
Press and hold, or press multiple
times, to continue moving backward
through the tracks on the CD.
Press to go to the next
track.
Press and hold, or press multiple
times, to continue moving forward
through the tracks on the CD.
and hold to reverse playback quickly
within a track.
and hold to advance playback
quickly within a track.
tracks in random, rather than
sequential order. To use random:
1. Press the softkey under the
RDM tab until Random Current
Disc displays.
2. Press the softkey again to turn
off random play.
The radio can play .mp3 or .wma
files that were recorded onto a
CD-R or CD-RW disc.
The radio plays discs that contain
both uncompressed CD audio and
Press
MP3/WMA files depending on which
slot the disc is loaded into.
The DVD player only reads
Press
uncompressed audio and ignores
MP3/WMA files on a mixed
mode disc.
Press to listen to The CD player reads both
uncompressed audio and MP3/
WMA files on a mixed mode disc.
Uncompressd audio is played
before MP3/WMA files. Press the
CAT (category) button to toggle
between uncompressed audio and
MP3/WMA files.
The DVD player supports:
The CD player supports:
Up to 255 folders.
Up to eight folders in depth.
Up to 15 playlists.
Up to 40 sessions.
Playlists with an .m3u or .wpl
extension.
Files with an .mp3, .wma, or .cda
file extension.
Up to 512 files and folders.
Up to 8 folders in depth.