GMC 2005 Envoy Owner's Manual page 258

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.
3-122
Recommended Action
Check the auxiliary input
connections at both
devices.
Change the Video Format
to PAL or NTSC. See
"Stereo RCA Jacks"
previously for how to
change the video format.
Check the audio or
language selection in
the main DVD menu.
Check to make sure there
is no obstruction between
the remote control and the
transmitter window.
Check the batteries to
make sure they are not
dead or installed
incorrectly.
The parental control
button might have been
turned on. The power
indicator light will flash.
Problem
After stopping the
player, I push Play but
sometimes the DVD
starts where I left off
and sometimes at the
beginning.
The auxiliary source is
running but there is no
picture or sound.
My disc is stuck in the
player. The Load/Eject
button does not work.
Recommended Action
If the stop button was
pressed one time, the
DVD player will resume
playing where the DVD
was stopped. If the stop
button was pressed two
times the DVD player will
begin to play from the
beginning of the DVD.
Check that the DVD
player is in the auxiliary
source mode.
Check the auxiliary input
connections at both
devices.
Turn the DVD power off,
then on, then press the
load/eject button on the
DVD player.
Do not attempt to forcibly
remove the disc from the
DVD player. This could
permanently damage the
disc and DVD player.