The 8-speed transmission in the 2016 Yukon Denali is, in my opinion, a failure. The noise in the passenger seat never ceased. OnStar stopped working because of water infiltration into the antenna. The left-front suspension had to be replaced because of noise. I will miss the 6.2 litre V8, but I grew tired of the problems of the 2016 Yukon Denali. So I traded it in for a 2018 GMC Acadia Denali. It is hard to adjust to a smaller vehicle. But it does not have the 8-speed transmission. It has a simple six-speed transmission. So, goodbye, TahoeYukon forums!