GMC 2010 Sierra 1500 Crew Cab Owner's Manual page 368

Sometimes the wireless
headphone audio cuts out
or buzzes.
I lost the remote and/or the
headphones.
The DVD is playing, but
there is no picture or
sound.
4-144
Check for obstructions, low
batteries, reception range,
and interference from
cellular telephone towers or
by using a cellular
telephone in the vehicle.
Check that the headphones
are on correctly using the
L (left) and R (right) on the
headphones.
See your dealer for
assistance.
Check that the RSE video
screen is sourced to the
DVD player.
The DVD display error message depends on the radio
that is in the vehicle. The video screen can display one
of the following:
there are disc load or eject problems.
This message displays, if the disc
is inserted with the disc label wrong side up, or if the
disc is damaged.
This message displays, if the disc
is not from a correct region.
This message displays, if no disc is
present when EJECT or DVD AUX is pressed on the
radio.
This message displays when