a couple weeks ago i was driving around and came to a hill, pressed the tow haul button on the shifter to stay in gear while headed up the hill and.... nothing, the light on my guage panel didnt even come on. No big deal i thought figured it was just a fuse. Well I've looked all over and cant figure out which fuse it could be, checked both fuse boxes. Am i just over looking it or what, can anyone help steer me in the right directioin to getting this thing fixed.