Tow/Haul ???

I use Tow/Haul full time and have really come to respect it. It can tell the difference between light braking and moderate or harder braking. A light tap seems to not engage it, but a somewhat harder tap will. It increases the length of time between shifts going uphill, and engages engine transmission downshift going downhill. The overall effect is to greatly reduce transmission temperatures, but also save your brakes and rotors from overheating. Many of us remember the old overdrive lockout button, so we have to adjust our thinking. Tow/haul is much more sophisticated.