Pontiac 2004 Montana Owner's Manual page 286

Playing a Disc
To play a disc, gently insert the disc with the label side
up into the loading slot until it stops. The DVD player
will continue loading the disc and the player will
automatically start.
If a disc is already in the player, press the play/pause
button on the face of the player or on the remote control.
Some DVDs will not allow you to fast forward or skip
the copyright information or previews. Some DVDs will
begin playing the movie automatically after the
previews have finished (although there may be a delay
of up to 30 seconds). If the DVD does not begin
playing the movie automatically, press the play/pause
button on the face of the DVD player or the remote
control. If the DVD still does not play, refer to the
on-screen instructions.
3-104
Stopping and Resuming Playback
To stop a disc, press the stop/eject button on the DVD
player. To resume playback, press the play/pause
button. As long as you have not ejected the disc, it will
resume playback from the point where it was stopped.
If the disc has been ejected, the player will start playing
at the beginning of the disc.
Ejecting a Disc
Press the stop/eject button on the DVD player once to
stop and a second time to eject the disc.
If a disc is ejected from the player, but not removed,
the DVD player will reload the disc after a short period
of time.