Tow haul button
I have a 04.5 duramax 3500 and I'm not sure when to use the tow/haul button on my gear shift also using this will it help my MPG? Thanks.
Forum Discussion
Just push the dang button and see how it reacts!
It will change the shift points.....stay in each gear longer before up shifting so that you can accelerate better when towing (trailer) or hauling (load in bed of truck)
It will downshift when decelerating adding some transmission braking.
It will actually lower mpg (slightly) due to longer shift points.
I use it when towing and non-towing in city stop/go traffic.
Can be selected at any speed.
PUSH the button......:B
It will change the shift points.....stay in each gear longer before up shifting so that you can accelerate better when towing (trailer) or hauling (load in bed of truck)
It will downshift when decelerating adding some transmission braking.
It will actually lower mpg (slightly) due to longer shift points.
I use it when towing and non-towing in city stop/go traffic.
Can be selected at any speed.
PUSH the button......:B
