Bought the 2015 Denali w/ all the bells and whistles in October 2014. At that time, the new body style was very hard to find, because it was so new. I have owned for over 2 years & have 49,000 miles on it. Have major problems when going 65 to 70-75 mph on freeway with the transmission-- while driving and increasing the speed on highway, it feels like the car "jerks" as it accelerates. Its horrible! Have taken to dealership 3X's complaining about it & they look @ me like I am crazy. I am getting ready to trade it in due to high mileage...other complaint is the usb ports--always tearing up my iphone cords. Miserable! When you plug your phone in into the usb, it automatically connects phone to vehicle...if you aren't paying attention, end up missing texts, phone calls, directions. I do love that you can use OnStar w/ directions, & remote start from your iphone...great little perk. Love the 3rd row seats and cargo...haul kids & dogs
Got my SLT April 2014. In the heat of summer, started having problems with AC. As time went by, the AC was taking longer and longer to cool. Took to dealership and was told there was no known defects and sent on my merry way without any action. Short time later, AC gave out completely. By the time I went the second time they finally did have instructions. Apparently it had too much freon, factory defect. Flushed and refilled freon. AC working fine now, but I still feel there's something wrong with it. When it's on full blast the vehicle shakes, almost like it wants to turn off, but RPM'S don't change and it stops when AC is off. Have taken it a couple of times and they insist it's normal. The platform in rear is a bummer, takes up too much space, very stupid idea. In spite of everything, I still love driving it, enjoy taking road trips.
Yukon is comfortable and exactly what I wanted. Tons of room, drives great, exactly like a $75,000 SUV should. But I have had constant issues since I purchased it. Most recent was the full replacement of the engine at 22,500 miles and 10 months of ownership. I've had seat issues, popping in steering wheel, loud wind noise coming from the sun roof. The 4 wheel drive system has had 3 issues and a recall since I owned it. The gauges stopped working, the steps get stuck. GM hasn't taken ownership that I have a lemon and this car needs to be bought back or replaced. I've owned 2 other Yukon Denali's and this has been the only one that I've ever had problems with.
The NEW, GM 2015 model Full-size SUVs indeed set new standards in this segment. I ordered out my Yukon Denali, which currently has about 8000 miles. I have had flawless performance and ZERO recalls or issues. The 6.2L/420HP V-8 is incredible. The fit and finish of this truck is amazing and the list of features is endless. The interior comfort and quietness at highway speed rivals any luxury sedan. I compared the new GM's against the other domestic and import brands in this market. Without any doubts, the structural integrity, interior materials, options and engines were were far superior in the GM lineup. As many predict, I agree that GM will continue to dominate the full-size SUV market!
Almost all 2015 Yukons/Denalis with AWD are having severe problems with the transmission.
Basically, if you used the AUTO setting on the drive selector the trans will lock into 4WD and never come out. GM has no fix for this problem yet. Driving the vehicle like this is unsafe and makes a horrible racket. It might also damage the vehicle.
Avoid any Yukon or Tahoe until the fix is found.
You can google this problem to read more about it
July - 2016 update: I owned this vehicle through January of 2016. traded it in on a 2016 Sierra Denali with 62xxx miles. Got good trade in, new vehicle cost $5K out of pocket. The only maintenance, other than oil changes was I replaced the tires at about 53,000 miles going into winter. Was a great vehicle and miss the adaptive cruise control (not available on the trucks).
Have had a new Yukon SLT for about a week - hardest part was finding one - much better looking than the Chevy Tahoe.
Truck has been great to date.
Driving home from the dealer (35-miles) at 71-MPH on cruise, the unbroken in truck did 21.3 MPG with air on (has towing package).
The only thing I miss is my magnetic ride from my Tahoe LTZ.
Other than that, far superior comfortand features.
A couple of years late, it's finally here.
It was definitely worth waiting for - it's a totally different car than the previous model.
I've had the car for 2-1/2 months now and have 5100 miles on it, most of them highway miles.
80 - 85 mph is no problem, and it feels like 60.
Smoothest and quietest vehicle I've ever owned.
Magnetic Ride Control, improved insulation and active sound management really do work in this one. Highway mileage is impressive even at high speed.
Best is 25 mpg so far (over a 50 mile distance driving with the wind).
With no wind mpg is around 20.
In town mpg is about 14, but average city/hwy so far is 17.2 mpg.
Factory Continental tires get high ratings.
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