I've ranted on the shift point thing in the past, and I concur there IS a technology problem in there somewhere. You can't tell me the 6100 doesn't put out enough torque to push uphill slightly at 65 without a downshift. My 2 previous Tahoes and Suburbans, all with 5700's, never had the problem.
The tow/haul did help quite a bit. But what got me was that towing a 3500 lb. vehicle with the family, luggage, and a dog in the back, I also thought there was ample power: the shifting was the same without the T/H. I'd like to see them address it so I'll call Hummer.
-Jack
Yellow H2 adv. Warn winch
Can't go traveling yet
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