Tow/Haul Button
I have a 2010 f150 with the tow pkg. When I press the tow/haul button, nothing appears to happen. On my former truck (dodge) i could feel the transmission go into a "lower gear range" when I did that. How do you check to insure the tow/haul function works?
The tow/haul button does not change the available gears. It simply changes the torque management/shifting strategies (different shift points, lock up points, and shift delays). In short, it's a completely different shifting strategy. It also provides engine braking.
The manual provides a lot of good information.
The manual provides a lot of good information.
Another interesting thing I think I read in the manual is that while in tow/haul mode tapping the breaks will make the rig downshift. I think you can downshift 2 gears by tapping the break after the first shift.
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You must have never driven a manual transmission before. If you remove your foot from the gas you'll just keep coasting. You have to down shift in order to get that lower gear to slow you down.

Tow/Haul delays upshifts to reduce frequency of transmission shifting.
Tow/Haul also provides engine braking in all forward gears when the
transmission is in the D (Overdrive) position; this engine braking will
slow the vehicle and assist the driver in controlling the vehicle when
descending a grade. Depending on driving conditions and load
conditions, the transmission may downshift, slow the vehicle and control
the vehicle speed when descending a hill, without the accelerator pedal
being pressed. The amount of downshift braking provided will vary based
upon the amount the brake pedal is depressed.Tow/Haul also provides engine braking in all forward gears when the
transmission is in the D (Overdrive) position; this engine braking will
slow the vehicle and assist the driver in controlling the vehicle when
descending a grade. Depending on driving conditions and load
conditions, the transmission may downshift, slow the vehicle and control
the vehicle speed when descending a hill, without the accelerator pedal
being pressed. The amount of downshift braking provided will vary based

