I have a 12 month old 2021 F250 with 33,000 miles on the odometer. The Passenger side mirror self adjusts down (towards the road surface) about on average every 150 miles of driving. I have brought it back to the dealer 3 times and called Ford customer service once. I can never reproduce the problem when at the dealer. Ford says that they won't attempt a repair if they can not reproduce the problem. The downward self adjustment sometimes occurs after the mirrors are folded in and out. I have tried reproducing the problem by driving over extremely bumpy roads to no avail. It is a very annoying problem. Has anyone ever heard of this problem? Ford seems to believe that I am the only person with this issue.