Np hopefully that's fixes it. I wasn't happy when mine didn't work and like an idiot I hoisted up my trailer and redid all the wiring. Because the trailer dealer had just retro fitted brakes on one of the axles. It was a newer trailer. I assumed they screwed up. Instead of just going to my office and trying different trailer lol.
I tow two different trailers often. One w/brakes, one without. I get the same message when I hookup the no brakes trailer. I click the dismiss button and go on my way w/no issues. Guess I don't understand why you are not able to do the same.
Gotcha. I miss interrupted that your trailer has no brakes as in not equipped w/electric brakes but you get the error message. I am at 10K with lots of towing and varied driving conditions. A couple days ago was climbing (10-20 mph) up a narrow (single "lane") inclined snow/icey mountain road (gravel) towing a trailer and it kicked out of 4 low (has occurred before), stopping progress and unable to move an inch forward (only sliding backwards) after re engaging 4x4.. Luckily had a set of chains and was able to continue or would have had a long and puckering reverse. Love the truck but also have some issues that need addressed (scheduled service).
