2021 FORD F-250 Exterior Lighting Problems

All of my rear lights stopped working with no warning. My blind spot monitoring and cross traffic detection also stopped working. This is a serious issue as the light go out intermittenly without warning. Especially dangerous at night. Dealership thinks it might be a faulty harness. Dealership thought they fixed it by cleaning contacts but the very next day they went out again while driving in a snow storm. Luckily no one was behind me because they would not have been able to see me.

The contact owns a 2021 Ford F-250. The contact stated while driving at an undisclosed speed at night, the headlights failed to illuminate as intended. The vehicle was taken to a local dealer where it was diagnosed and determined that the headlights might have been damaged due to heat exposure or chemicals. In addition, upon inspection, the contact noticed an abnormal fuel consumption. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 17,000.

My F250 was in service for fuel system replacement and to fix both side mirrors which wouldn’t go down after going up. Shortly afterwards I noticed the rapid turn signal you get when tail lights are out. This happened while using a trailer. The trucks rear lights weren’t working at all but trailer lights were. Also was getting the blinds spot and cross traffic alert faults on instrument panel. Dropped off for service. They found a loose trailer plug and reset some things and got it all working again. Soon after the blinkers would flash fast again meaning lights were out, but would quickly stop and back to normal. Later they stayed blinking fast and tail lights out again after stopping starting several times. I tried plugging in my trailer wire harness and it tail lights started working again on truck?? 2 days later Im using trailer again, truck tail...

Head light housing retains moisture on the inside of the lens both headlights on truck. May be causing shortage of the wires

Headlights are blinding on F-250s seems all late model Ford F-250, all models seems they always are on bright when at intersectionn across from one it's blinding to see anything else even when driving and the F-250 are coming at you blinding