Buick LaCrosse Owner's Manual page 235

No power.
The picture does not fill the screen. There are black
borders on the top and bottom or both sides, or it looks
stretched out.
In auxiliary mode, the picture moves or scrolls.
The remote control does not work.
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.
Tips and Troubleshooting Chart
Problem
Infotainment System
Recommended Action
The ignition might not be turned to ON/RUN or ACC/
ACCESSORY.
Check the display mode settings in the setup menu by
pressing the display menu button on the remote control.
Check the auxiliary input connections at both devices.
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.
If the Stop button was pressed one time, the DVD player
resumes playing where the DVD was stopped. If the
Stop button was pressed two times the DVD player
begins to play from the beginning of the DVD.
Check that the RSE video screen is in the auxiliary
source mode by pressing the AUX button on the remote
control.
Check the auxiliary input connections at both devices.
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