GMC Navigation System 2006 Yukon Manual page 63

Playing a CD (Six-Disc CD Changer)
Your vehicle may have a six-disc CD changer.
See "Radio with Six-Disc CD" in the Index of your
vehicles owner manual for more information.
There will be a 12 to 15 second delay while the CD is
read, before it begins to play. When the player begins to
read a CD, the Disc Check in Progress message will
appear briefly to remind you of the delay.
If the ignition or radio is turned off with a CD in the
player, it will stay in the player. When the ignition
or radio is turned on, the CD will start playing where it
stopped, if it was the last selected audio source.
If playing a CD-R the sound quality may be reduced
due to CD-R quality, the method of recording, the quality
of the music that has been recorded, and the way the
CD-R has been handled. There may be an increase
in skipping, difficulty in finding tracks, and/or difficulty in
loading and ejecting. If these problems occur, check
the bottom surface of the CD. If the surface of the CD is
damaged, such as cracked, broken, or scratched, the
CD will not play properly. If the surface of the CD
is soiled, see "Care of Your CDs" in the Index of your
vehicle's owner manual.
If there is no apparent damage, try a known good CD.
Notice: If you add any label to a CD, insert more
than one CD into the slot at a time, or attempt
to play scratched or damaged CDs, you could
damage the CD player. When using the CD player,
use only CDs in good condition without any
label, load one CD at a time, and keep the CD player
and the loading slot free of foreign materials,
liquids, and debris.
Do not add any label to a CD, it could get caught in the
CD player. If a CD is recorded on a personal computer
and a description label is needed, try labeling the top of
the recorded CD with a soft marker instead.
If an error appears on the display, see "CD Messages"
later in this section.
While playing a CD in the CD player, the navigation
system is not available. A message will display if
the NAV key is pressed. If your vehicle is equipped with
Rear Seat Entertainment (RSE), you can play an
audio CD while using the navigation system. See Rear
Seat Entertainment System on page 3-15 for more
information.
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