Laser 4000 telling the driver to pull forward and whether they do or not it then tells them to back up. Finally it starts and when the wash finishes the wash is still telling them to drive forward even after they have left the bay!
sounds like an issue with the "backup loading" eyes
As a car is loading watch lights #4(back up input) position 3 on the VT controller it should stay on unless something is blocking it ,then it will turn off.