cltsig

I saw your earlier post but couldn't quite make out the dampers. Was this something the stealership whipped up? Could it be DIY? I'd love to eliminate the booming. I think the first step is to rid myself of those made-from-stone Continental tires.

If some people are more sensitive than others to these issues, I'm curious if those who've noticed it have ever driven in one that doesn't do it? I drove probably 10 Tahoes and Yukons before I bought the one I own, which is the only one that didn't exhibit the really obnoxious noises. It still booms (flick a woofer) at low speed but that seems inherit in all of them.

Ateam_burb: Any idea what the TSB is? My 2016 Denali rides like a potato wagon, stiffer than any car I've ever owned or driven in 30 years of driving.

A new story on the vibration/buffeting issue, but mostly focused on pickups with vibrations. Any news is good. http://www.autoguide.com/auto-news/2016/03/the-mysterious-chevy-shake-is-affecting-pickup-trucks-now-too.html

Yes, Continental ContactPlus LX20 if my 2 minute short term memory is correct. It vibrates from 55mph at least through 70 but haven't analyzed a peak. It has just started with ~1600 miles on the odometer. Low speed booming has been present from day 1 but was deemed acceptable compared to the buffeting and vibrations felt on others we test drove. I would love to hear more about the exhaust dampers. It sounds like the dampers absorb or dissipate the boom and thus, the factory dampers are too stiff? I wonder if others have had success eliminating the boom with new dampers.

Agreed. The low speed booming is annoying. My 2016 Yukon Denali 2wd 20" has also developed a vibration at highway speeds. Just don't have time to take to dealer yet but will soon. Hopefully they play ball.

Just throwing a few things out there. -I had some wood in the back of my 2016 Yukon Denail and had the rear lift gate open while driving home. The exhaust noise coming in from the open hatch was almost unbearable, especially when it dropped into V4 mode. I was absolutely shocked how loud it was. Maybe the ANC can't cancel this out in some cars which causes the buffetting? Or maybe vibration plus this noise is too much? -I was testing the video with my son (setting up headphones, etc.). The drivers side door was open with the keys in the ignition, so I stopped the dinging by closing the door. I believe the rear door was open too because I stored the headphones back there. Anyway, when I closed the door I had the EXACT same boom occur that happens at slow speeds over uneven pavement. It was exactly the same. I never noticed it before while closing the door. This is one of the few times the stereo (ANC) was on and the door was slammed. Not sure if the hatch open mattered but dang, that boom was annoying. I think GM testing relied too heavily on the ANC to cancel out annoying sounds. It doesn't appear to be working correctly in some vehicles. Again, my .02.

I bought my 2016 Denali about a month ago and as I posted then, the dealer rightfully acknowledged the issue and claimed it was fixed by something along the lines of "changing glass vendors". Maybe that was the watered down interpretation 6 people away from the source that the fix dealt with the glass in some way. Maybe his bro-in-law is a GM engineer and they're fully aware of the issue and fix but won't for the same reason they went with a crap rear hatch seal vendor-penny pinching. I'm willing to take detailed pictures of all aspects of my non-buffeting rear hatch for comparison to one that does. The difference may not be visible though but could be thickness or the resiliency of the seal.

My eyes hurt, after reading, the above, post.

I thought that as well. I drove about 4 Tahoes and 3 Yukons, all with issue to some degree. The very first 2016 Yukon SLT 22" 4wd I drove had it the worst, driving me to google and this site. After driving a few Tahoes and all having it to varying degrees, my wife and I agreed we are not messing with this brand. However, one Tahoe only had it mildly and it was on 20's. We found a 2016 Yukon Denali on 20's, 2wd, optioned with the colors and options we wanted (more specifically, didn't want). We drove it and although the suspension was "tight" and had some booms, it had no vibrations or buffeting. We ended up getting it (one week ago today) and if anything it has gotten quieter. 450 miles right now. My wife mentions how quiet it is, more so than our 2015 Infiniti Q70L with the noise reduction Bose system. My opinion is there is some design flaw or variance that allows the minor vibration turn into major buffeting. If your truck doesn't have that manufacturing flaw/variance/what have you, you won't have issues. We also noticed trucks with 2wd and 20's had the least issues.

Right, I know, asinine at best. Salesman will say anything. I think he believed his own BS.

Newbie here but my experience so far. Drove a 2016 Yukon 4WD SWB SLT with 22's. We were unaware of the buffetting/vibration issues before the test drive but boy was it bad, almost unbearable for 10 minutes. Upon returning home I found this site. From the sounds of this thread it seems like it is 100% going to happen at some level. So we then drove a few 2016 Tahoes - LTZ, 4WD, one with 22's, one with 20's. The ones with 20's drove better but still had some buffetting. After writing off this line, we figured we would try again. Like somebody mentioned earlier, there is nothing else in this category. Infiniti is hard to see what is going on with those curves on the hood, plus way outdated tech. Sequoia is WAYYY outdated and horrible mileage. Everything else too small or way overpriced (Hello Land Cruiser). So we went back to the GMC dealer and drove a 2WD, SWB Denali with 20's. The only noise we heard were some trucklike booms going over bumps at low speed which is to be expected, at least to me anway. No ear pressure, no vibrations, no buffeting, seemed pretty normal for what one would expect from an SUV on a truck frame. I asked the salesperson about this issue and he said (swallow grain of salt) that the issue is known and has been addressed by GM in the Yukons by changing glass vendors. The new glass is thicker and has more sound deadening. He said they've had numerous Tahoe's on trade due to this issue and the Yukons they've been replaced with don't have it. I'm not sure I buy it but that's the first I've heard of this resolution. We're testing driving the vehicle for a few days to see how it does. So far the wife (the one who is most bothered by the buffeting/vibration) says she doesn't feel it at all. So far so good. In conclusion, I doubt the issue has been resolved by thicker glass because another 2016 Yukon with 22's had it in a bad way. I think it is some combination of wheels, 4WD components and the design of the roof being super susceptible to those. However, it does not appear that all Tahoes and Yukons have this issue. FWIW, the vehicle we're driving now has a build date of 09/15.