I feel your pain. My 2021 Big Horn's Trailer Reverse Steering Control has never worked. While not as severe as your problem, it is a disappointment. We bought the truck to tow a travel trailer.
It's been going to the dealer about once a month since May, as Stellantis/Ram tries different things, seemingly random things, to fix it. And it's going in again on Friday, this time the rear camera is going to be replaced. So far the dealer has reset the computer, then it was reprogrammed, then it was replaced. The rear camera software recall was done next. Ram technicians then had a Zoom conference with my dealer as they drove it around with my trailer in their lot. Then Ram sent a technician to my dealer. He couldn't figure out why it didn't work either. Then that afternoon the dealer called me and told me that Ram says the problem is the rear camera itself, supposedly the only sensor involved in the system (and one that appears to work just fine). My dealer's service manager, whose got 25 years of experience, finds it difficult to believe that the only sensor used is the rear camera. So he has asked (several times) for a complete list of all the parts used in the system. Apparently this is something Ram is not willing to give to him. It seems that the system was purchased from a third party vendor. Ramcares has mentioned that if they can't get it to work, they will hand me a check for $900, which was the cost of the towing option package. Frankly, I don't need the money, I'd rather have the system work. I had considered buying a Ford which has a similar system. However, the Ram seemed to be a better truck overall.