Three problems related to wiper have been reported for the 2012 Ford F-250. The most recently reported issues are listed below.
My rear window shattered on a cold morning with no impact. I suspect the rear defroster was faulty. Glass guy said he replaced this window all the time with that complaint.
Defrost mode acuator faulty.
Windshield wipers were locked on when the vehicle was on. Independent of weather. No way to turn off until electronic switches that control the wipers, blinkers, and high beams were replaced. Problem started on the highway in motion. Rt 89 n vermont. Continued untilled repaired. Part number was sw-6874.