My A/C started acting up after the update, but I didn't put the two things together until your posts. Sure as can be, I too had a plug hanging around, disconnected. Although I am not technical enough to name the connector, I could tell that it lead to the cooling fan. It was however a different...
Update to my trailer issues: I had the update completed and have not experienced the same issue. It does however take some time for the system to recognize that the trailer is no longer attached. Driving forward for a bit seems to do the trick.
Same thing on my 2024 TRD Pro! So frustrating. It continued to happen for over 1000 miles, then suddenly corrected itself. I have towed a trailer since then and it functioned properly. No recall performed yet. I don't have any answers for this.