Fuel pump left us stranded 700 mls from home$1000, abs module replaced $1000, it has since gone out again and dealer has no record of fixing it the first time. Brakes wear unevenly, cuts out at stop light, multiple visits to dealer never corrected. Doors make terrible noise, no amount of oil, wd 40 helps. Window motors stopped working. Not a dependable vehicle at all. Cheap interior coming to pieces
Bought it brand new. 3 days after driving off the power windows failed and dealer said they already knew of the problem. 6k miles, front tires wore out, 4 sets of tires by 20k miles before warranty replaced the entire front end and steering column, 1st year - fuel pump failed, starter failed, elect system shorted - 4 sets of ball joints, 3 sets of tie rods and transmission failed within 97k miles, rear end is failing now at 202k, great gas mileage though and comfortable when it's running - dealer service abysmal, 1st answer from them on tires was "that is a big vehicle and you're going to have some tire wear", warranty on transmission was GMC's own and poor - never again for GMC
Ordered truck new when 3/4 tons became avaialble. Ordered the 40/20/40 front seating, a big help when using the truck as a P/U filling the entire back, which is why I bought a truck and not a soccer mom SUV. rdered with 3.73 gears and put taller LT235/85/R16 tires. With the combo I get 17 mpg on the highway, with 2000 lbs of stuff and cruising at 70 mph. Has been very reliable, not to say that I have not had to have repairs done, most expensive was replacement of the exhaust manifold bolts, 3 broke off, mechanic said it was a design fault. New bolts were much beefier. Can tow 10K lbs with ease. If you are looking for economy, by a Prius, but I would not want to drive it for 16 hours.
Interior size, reliability, mileage for size and use, carry 9 people, pull hefty weight for hours on end, comfortable ineterior, 4 wheel drive when needed.
3rd seat a little lighter or put the double seat in back to ease removal. Nothing else. Have 90K on it and it runs like a top!
This is one of the most comfortable trucks I've ever owned. It pulls a 7500lb travel trailer with no problems. The only repair I've needed since purchasing it new is the front hub assembly which wasn't difficult to replace. I did replace the OEM hitch because of failures on other GM trucks. This has been a great truck to own and I will buy another when the time comes. I hope they will put a diesel in the Suburban/Yukon XL line.
Seats and ease of driving. Good layout on the controls.
Put a bigger engine than the 6.0 on the future trucks or give a optional diesel.