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Old 03-30-2015, 11:17 PM   #29
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The tow/haul on my 2012 Jeep Grand Cherokee with the Hemi V8 is great, especially on downhill applications. With the trailer on the back, go down a long Western 6 to 8% grade, touch the brakes to slow to the speed you want to go, and then let off the brake. The transmission then downshifts to hold that speed with very very little additional braking.
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Old 03-31-2015, 06:18 AM   #30
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Tow/Haul reconfigures the shifting points of the transmission and avoids torque-converter lockups in overdrive, according to the Ram service-center I use.
In ours, it also seems to switch to a different style of shifting - that is, shifts are smooth in normal mode, but in Tow/Haul the shifts are much firmer. You can really feel them, especially when slowing down.

We use Tow/Haul whenever we're towing the trailer. With the B190 I used to turn off the overdrive lockout on level ground, but eventually I decided it wasn't worth it. The last thing you want to do is forget to reengage it and overheat the transmission...that'll cost a LOT more than the fuel you might save.
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Old 04-18-2015, 03:30 AM   #31
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Headed out to southern Indiana this morning. After reading this info, I will try to remember to keep my '09 Ram 1500 in tow/haul mode. To manually downshift, I just use the "plus minus" button on the shifter handle? Never really used this mode until I starting towing my Airstream.
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Old 04-18-2015, 06:35 AM   #32
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Yes, the manual shift mode works if you are in tow/haul or not.
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Old 04-18-2015, 06:36 AM   #33
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To manually downshift, I just use the "plus minus" button on the shifter handle?

Yes, but the only time you should is if it is hunting between gears as you climb a hill.
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Old 04-18-2015, 07:25 AM   #34
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Actually, I find the manual shifting option beneficial when going down grades as well.

The system won't let you do anything stupid, but it will within reason, manually hold in a gear that you want.
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Old 04-18-2015, 11:50 AM   #35
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Actually, I find the manual shifting option beneficial when going down grades as well.

To maintain speed, I assume?
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Old 04-18-2015, 12:07 PM   #36
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To maintain speed, I assume?
Yes, to let the engine exhaust brake hold the speed.
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Old 04-18-2015, 12:44 PM   #37
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I never use the tow mode on my dodge as I don't like the down shifting when in the tow mode with the exhaust brake on , and you touch the brake and the transmission starts down shifting, so I just leave mine in regular mode,
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Old 04-18-2015, 12:55 PM   #38
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I never use the tow mode on my dodge as I don't like the down shifting when in the tow mode with the exhaust brake on , and you touch the brake and the transmission starts down shifting, so I just leave mine in regular mode,
Yea, in flat country many times I forget to put it in tow/haul, and in those conditions don't really notice a difference, but I always activate it in the mountains.
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Old 04-18-2015, 02:01 PM   #39
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Yea, in flat country many times I forget to put it in tow/haul, and in those conditions don't really notice a difference, but I always activate it in the mountains.
I used it all the way today. There are some pretty steep grades in western pa
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Old 04-18-2015, 03:11 PM   #40
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I never use the tow mode on my dodge as I don't like the down shifting when in the tow mode with the exhaust brake on , and you touch the brake and the transmission starts down shifting, so I just leave mine in regular mode,
As SteveH said, in flatland or even minor hills, no problem. But I know first hand that transmissions are expensive, and a failure is hard on a vacation.
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Old 04-18-2015, 03:18 PM   #41
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We really should be using it any time we are towing, but I forget. And, I don't like that you have to turn it on every time you start the engine. Why can't the stupid computer leave it like you had it set? Stupid computers...........
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Old 04-18-2015, 03:56 PM   #42
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Perhaps I'm naive, but after reading all the stuff in the owner's manual when I got my truck, I made an assumption that there were some engineers involved in the design of my RAM (who know much more about the dynamics of towing than I do), that justified the cost involved in both an integrated braking system (and the ability to select electric/electric over hydraulic, etc) as well as a variation in transmission shift points -- and who knows what else -- into the innards of my truck. So, when I tow my Airstream I push the Tow/Haul button before I put it in drive. AND, depending on the terrain, I also push the exhaust brake button. While this may not work for everyone, I'm at 21,000 miles with a '14 truck. 19,210 of those miles are towing -- I know, because the truck keeps track of that IF the "Tow/Haul" button has been selected. I LOVE my Ram 2500 and that big honking' Cummins!
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