The contact owns a 2018 Ford F-150. The contact stated while driving at an undisclosed speed, the rear driver’s and passenger’s side doors latches independently unlocked and the driver’s and passenger’s rear doors swung open. The contact stated that the failure was intermittent at first but had become persistent. The contact stated that the failure occurred after the vehicle was taken through the car wash. The contact, who is an independent mechanic, diagnosed the cause of the failure as moisture inside the door wells. The contact used bungy cords to prevent the doors from swinging open. The dealer was made aware of the failure. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 42,000.