lariate

got a 2015, here is a small problem i have,on the 2013 that i traded in i had a led brake lite on the rear bumper(about 12 in long plug and play) now on the 15 model when i plug it in ,it auto takes me to the dash screen sayingi have a trailer and everything is ok, on the 13 modle never did see that mag and it had brake controls the 15 does not have the brake control,is there any way to go around the mag on the dash??