Should I Use Tow/Haul mode?

yamahas · March 15, 2012

I am pretty sure the manual says T/H mode is only really useful when towing 75% of the rated capacity? I think that is what I read.

MNDave · March 15, 2012

I am pretty sure the manual says T/H mode is only really useful when towing 75% of the rated capacity? I think that is what I read.

I guess that is kind of why/what I was wondering. There has to be a point at which it is beneficial and a point at which it doesn't really matter.

Thanks for the responses.

tanked_darren · March 16, 2012

Some of you guys are putting more thought than you should into this. If anything if your going to be going up any grades you definitely want to put it in "3" or "5" depending on your transmission.

BlackZ71Silverado · March 16, 2012

Your trailer is more than 2000 lbs heavier than what I towed. At 5500 lbs I'd probably run T/H too depending on how the truck behaived. My point is just that T/H as a blanket recommendation with any trailer is a bit silly.

Agree, it's a lot silly. No need to use T/H mode unless your truck feels like it's really getting a workout.

I don't understand why some people think that T/H mode needs to be used if something is connected to the truck, or if you have something in the bed, it doesn't make sense to me.

T/H mode is for pulling HEAVY loads. There is absolutely NO benefit of using it when you are not pulling or hauling a heavy load. GM actually recommends it's use ONLY when pulling heavy loads.

ChrisNJ · March 16, 2012

have a '11 Sierra Denali w.6.2. i towed 8K with my '07 SD/6.2 and didn't use TH because the engine braking was insane, it would literally put me hard into the seatbelts just touching the brake. my 11 doesn't do this now, as the crazy engine braking is fixed now, however my trailer got lighter to arounrd 6K, so I don't need TH at all now unless i'm in the mountians. as others have said here, use it if you want, or i you don't want to, doesn't matter much until you get to the upper ranges of max. towing limit.

jlr860 · March 16, 2012

Use it for a bit to see how it feels and if you get to the point where your truck keep shifting or you feel it works better in t/h, or you get to some good hills.

As far as flat interstate use it to get on the interstate but while cruising down it I doubt you will need it.

TRCM · March 19, 2012

I don't need to use it when I am towing my boat (~ 3500 lbs), but I choose to simply because it changes the 'tap to turn' from 3 blinks to 6, which gives ample time to change lanes with the trailer in tow.

It also makes taking off easier. I have towed my boat both with and without, and I can't tell a mpg difference, so I use it.

kstruckcountry · March 19, 2012

It does seem to help with takeoff. But I usually lock it down to 3, cause it's so hilly here it'll always be hunting if I don't.

bogeypro · April 4, 2012

My last boat (pictured below) had horrbile trailer brakes so I used T/H when in traffic to help with stopping. New boat has great brakes so i don't need it. I will use the T/H if I feel the truck is hunting for gears.