Mott

I have a 2020 At4 2500. First time I started towing my boat trailer it was all good. Set up my profile in app was easy. Now last week, went to pull the boat and message came up recalled brake gain. Diagram of diagnosis showed prong was not connecting in plug so was causing my trailer electric brakes on passenger side to stick. Called dealer and they said my module was bad, ordered and replaced. Went to tow boat yesterday and same message came up along with no trailer connected. To see if it was my trailer hooked up to some friends trailers. Still, the same with no trailer connected. At this point, I’m very frustrated but will try dealer again today.