Due you mean by removing the ballast you were able to reconnect/screw the adjustment bolt (assumption that is what it is) back together? Did your solution require you to remove the assembly and by extension, the bumper?
Appreciate any further clarification, outside the warranty. Considering...
Hello, were you able to solve this problem or did you have to replace the whole assembly? I just purchased a 2016 Mustang with the same problem. I can move the ballast/square box up and down freely and assume it has some how disconnected from the adjustment set screw. Thanks to anyone that can...