GMC 2004 Sierra 1500 Pickup Owner's Manual page 251

DISPL (Display): Press this knob to see how long the
current track has been playing. ET and the elapsed
time of the track will appear on the display. To change
the default on the display (track or elapsed time),
press this knob until you see the display you want, then
hold the knob for two seconds. The radio will produce
one beep and the selected display will now be the
default.
BAND: Press this button to listen to the radio when a
CD is playing. The inactive CD will remain safely
inside the radio for future listening
CD AUX (Auxiliary): Press this button to play a CD
when listening to the radio.
Z
(Eject): Press this button to stop a CD when it is
playing or to eject a CD when it is not playing. Eject
may be activated with either the ignition or radio off. CDs
may be loaded with the radio and ignition off if this
button is pressed first.
CD Messages
If the CD comes out, it could be for one of the following
reasons:
•
It is very hot. When the temperature returns to
normal, the CD should play.
•
You are driving on a very rough road. When the
road becomes smoother, the CD should play.
•
The CD is dirty, scratched, wet, or upside down.
•
The air is very humid. If so, wait about an hour and
try again.
•
There may have been a problem while burning
the CD.
•
The label may be caught in the CD player.
If the CD is not playing correctly, for any other reason,
try a known good CD.
If any error occurs repeatedly or if an error cannot be
corrected, contact your dealer. If your radio displays an
error message, write it down and provide it to your
dealer when reporting the problem.
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