Chevrolet 2003 Avalanche Owner's Manual page 258

Problem
No power.
Disc will not play.
The picture does not fill
the screen. There are
black borders on the top
and bottom or on both
sides or it looks stretched
out.
The disc was ejected, but
it was pulled back into
the DVD player.
3-98
Recommended Action
The ignition might not be
in on or accessory.
The parental control
button might have been
pressed. (The power
indicator light will flash.)
The system might be off.
The parental control
button might have been
pressed. (The power
indicator light will flash.)
The system might be in
auxiliary source mode.
Press the SRCE button
to toggle between the
DVD player and the
auxiliary source.
The disc is upside down
or is not compatible.
Press the Display button
on the DVD player or on
the remote control.
Change the display
mode.
The disc is being stored
in the DVD player. Press
the eject button again to
eject the disc.
Problem
In auxiliary mode, the
picture moves or scrolls.
The language in the
audio or on the screen is
wrong.
The remote control does
not work.
Recommended Action
Check the signal coming
from the auxiliary device
and make sure that the
connection and the signal
is good.
Change the Video
Format to PAL or NTSC.
See "Stereo RCA Jacks"
previously for how to
change the video format.
Press the Menu button
on the DVD player or on
the remote control and
change the audio or
language selection on the
DVD menu.
Point the remote control
directly at the infrared
window below the video
screen while using.
Check that the batteries
are not dead or put in
wrong.
The parental control
button might have been
pressed. (The power
indicator light will flash.)