I have a 2020 2500 HD that has the trailer recognition option (when you hook up a trailer it asks you which trailer). When I hooked up my boat trailer I found out it had some bad wiring and thus blew the fuse that operates the recognition feature. I have been searching the fuses in the fuse box under the hood with no luck, does anyone have an idea which fuse number it is? I hate to pull every fuse trying to find a bad one and the fuse legend isn't much help.
Thanks

 

I see this is old but just in case you are still wondering, you have a couple fuse blocks inside the truck one on each side. The one I think you are looking for is a small panel that pops off, you have to open the driver door and its on the end of the dash. Good luck