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Bednarski1's avatar
Bednarski1
Explorer
Jun 01, 2014

Tow/Haul Feature

I have a 2014 E450 Sunseeker and I have some questions regarding the tow/haul feature. I kn ow it works like it's supposed to going up and down long grades but can I use it while in the cruise control mode.
  • I have a BT Cruiser on an E450 and I use it with the tow/haul on all the time since it is always loaded close to the max.
  • What is best-leave in tow haul ALL the time, or to click into it when hitting a hill or coming down from one? I try to leave in D the whole time, but when I feel a down shift for the hill, I hit tow haul....then click out when not needed any more. Am I doing damage to the tranny????
  • oldkeywest91 wrote:
    Yes,all it does is change the shift points in the trans.


    And enables automatic grade braking (i.e. auto downshifting).

    I have found it can sometimes be too aggressive when cruising in the flats (it downshifts when it really doesn't need to) but its great up and down hills.