Moving path is blocked
Press OPEN key to restart monitor movement

Improper aspect ratio setup
Use correct aspect ratio setting

DVD is not compatible with current TV system settings
Change setup to accommodate disc

Improper Video signal connections
Check wiring and correct

Incorrect connection to parking brake wire
Check wiring and correct

PRK SW is activated and parking brake is not engaged
Stop vehicle in safe place and apply parking brake

TFT Auto Open is turned off
Turn TFT Auto Open on