I bought a used 2014 Pathfinder S with 18k miles three years ago. It has 71k miles now...no CVT issues. We have bought a 3500 lb camper. Added trailer brakes . On our first short trip there were no problems. My only concern is the transmission. I think there is a transmission cooler from the factory. I am having the trans serviced next week.
Does anyone have experience towing a similar weight trailer on a long trip?