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Old 03-26-2020, 11:50 PM   #1
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Towing selection

On the shift on steering column, of my 2018 Vegas, there is a button to press for use when towing. I was told to use it when I purchased my RV, and I do.Whenever it is engaged and I am slowing down, going down or up a hill, the engine roars and RPMs increase higher than I would like. I prefer to keep my RPMs between 2000 and 3000. Is there any distinct advantage to using the towing selector? There have been times when I forget to engage it, and drive a distance with no problems.
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Old 03-27-2020, 12:08 AM   #2
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The Tow/Haul mode engaged by the button you referenced changes the shift points in your transmission to help minimize hunting between gears, especially the highest gears. It also helps slow the RV down by downshifting the transmission when slowing down and you can force a downshift by tapping the brakes.

In practical use I don't engage my T/H mode unless I am decelerating. I find it holds the lower gears too long when accelerating (causing the high RPMs) and I never have any hunting while cruising. YMMV.
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Old 03-27-2020, 12:10 AM   #3
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You can safely drive with Tow/Haul disengaged. I almost always drive with it off--even when pulling a car.

When it is on; going down a hill you can tap the brake to cause the coach to downshift--which is why you see the RPM's jump. It also changes the shift points for more power.
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Old 03-27-2020, 12:34 AM   #4
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I always drive with tow/haul engaged. I am always hauling the motorhome and sometimes towing the CR-V. I notice no difference in MPG and no difference in shift point or noise in the cab. The Ford V10 is noisey, end of discussion. I do like that the transmission assists in vehicle braking. I have also read somewhere that the tow/haul programming increases transmission life expectancy.
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Old 03-27-2020, 01:41 AM   #5
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A quick search will show you previous threads about the Tow/Haul switch. We tow a car, and I leave it off until we have a down grade where engine braking is needed. It really saves the brakes in those situations.
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Old 03-27-2020, 03:25 AM   #6
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Old 03-27-2020, 05:04 AM   #7
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If L am towing my trailer it is on. and the trans is in lock 5th gear of 6. Better gas mileage.
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Old 03-27-2020, 09:59 PM   #8
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I pretty much do what all of you have suggested. I drive with it on, but disengage when I have slowed down enough and now need to accelerate.
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