There is no Tow/Haul button in the JL. The transmission in "D" will take care of changing the shift points based on engine load demand. It does it all on its own. I believe the manual says to use Manual Mode is you feel the Jeep shifting too much or you have excessive RPM for an extended amount of time.
Sorry what the off road button does??
When activated, Off Road+ is designed to improve the user experience when using specific Off Road driving modes. To activate Off Road+, push the Off Road+ switch in the switch bank. The vehicle’s performance will improve depending on which Four-Wheel Drive (4WD) mode is activated.
You can read the manual for Off Road + but I don't think it provides a good explanation of when and why you would activate it. It's for higher speed off-road driving best suited for dry or sandy terrain. It's a carry-over from the Mojave and its Desert Rated badge, so think careening through the desert. It will adjust your shift points (auto trans) to keep engine RPMs higher, increases the responsiveness of the throttle and adjusts traction control for desert sand. It also allows you to drive at higher speeds with the rear locker engaged.
