One problem related to coolant leaking has been reported for the 2012 Ford F-250. The most recently reported issues are listed below.
The contact owns a 2012 Ford F-250 sd. The contact stated that the accelerator pedal failed to respond while the vehicle was in reverse. Prior to the failure, an unknown sensor was replaced by the dealer. The gear was shifted into drive and the vehicle was driven to the driveway. The vehicle was not diagnosed or repaired. In addition, coolant leaked from the reservoir into the valley of the engine and the four power door locks would intermittently unlock when driving. On a separate occasion, in extremely cold weather, the engine failed to start. The vehicle failed to restart and was towed to the dealer. The contact was uncertain of the repair that was performed. The manufacturer was notified of the failures. The approximate failure mileage was 20,000.