Owners manual info GMC
I bought a 2018 GMC 2500 dsl a couple days ago and today was reading the owners manual. In it about towing it said not to use tow/haul unless you were at 75% or more of gcwr. It said it was of no bene...
Forum Discussion
I understand what your manual says but I note no difference in mileage towing with or without T/H. I do notice a difference in performance however and use T/H when going up, down or against a headwind.
My 2015 Tahoe manual says: “The Tow/Haul Mode adjusts the transmission shift pattern to reduce shift cycling. This provides increased performance, vehicle control, and enhanced transmission and engine cooling when driving down steep hills or mountain grades, towing, or hauling heavy loads.”
You do as you wish. I’ll use T/H.
My 2015 Tahoe manual says: “The Tow/Haul Mode adjusts the transmission shift pattern to reduce shift cycling. This provides increased performance, vehicle control, and enhanced transmission and engine cooling when driving down steep hills or mountain grades, towing, or hauling heavy loads.”
You do as you wish. I’ll use T/H.
