Getting a Cross Traffic Fault on the dash on startup and have lost blindspot detection along with backup camera. Do I have to take off the rear bumper and check all the wiring harnesses or is there another fix for this?

You have too many miles for warranty?

This may sound dumb...but the fusions had this same issue when the speaker which alarmed went out (reverse warning alarm when too close to an object). You would hear it screech and then it was dead...and then those same faults would happen.

Maybe something to check although I don't know where it would be on a F250. For the fusions, it was in the rear deck next to one of the deck speakers.

I have 77k so definitely no warranty.

I thought it was the bumper sensors only cause they got pretty exposed to mud a few weeks ago. Live in south TX and we got 5in of rain so pastures were muddy as hell. I cleaned all I could but no dice.