NHTSA Complaint #11623119 — 2022 FORD F-450 SD

The tailgate has opened randomly on about 4 or 5 occasions most recently the tailgate opened making a right turn while the horse trailer was connected to it and damaged the tailgate. It seems to open on right turns or when washed or been raining. The key is kept in the console and i always apply the parking brake. It is very random. There was a recall/ owner satisfaction program 21m01 but this truck is out of the production date and was advised this was fixed in production so either the repair the "fix" did not work or maybe mine got old stock. the truck has been out of service for this for over 6 weeks and is still at the dealer. two engineers have looked at it and no answers as of today 11-1-2024. We have another 2022 f350 with different production date and that one has open 21m01 on it which was allegedly fixed.