Thanks for the replies..... I think I will wait till next year models come out for a couple reasons: 1) they understand and fix the problem that remains ( both the tailgate pop and the buffeting) - I guess GM acknowledging it with a service bulletin is a start, but like others have stated, when I relayed my reservations about buying as a result of this condition, no one knew anything about it at the sales office. And whoever provided the detailed / pictured (the one on page 8) bulletins on this post, I am extremely grateful. I showed my salesman that I do not want my $70k vehicle being torn apart and then put back together with a lot of clue and some c-clamps near the sunroof. I had to provide the bulletin number and then they relayed their was an intermittent issue, not one that resulted in a recall or production stop etc, said it was mainly the Yukon XLs...2). The second reason I may wait is that I am hearing rumblings of a 3/4 ton suburban for 2016. This new boat / trailer will be pushing the comfort level of the towing capacity on the 1/2 ton as it sits at around 7500lbs with fuel, trailer and gear, and I am told that the trailer tongue weight can't exceed 600 lbs with the 2015 towing package on the suburban, already causing me to get some weight distribution hitch of some kind. I do like the the vehicle, but for the money, as most have stated, I can't justify that amount without getting a lot more comfortable about the problem being a non issue. I can't thank the members of this forum enough for taking the time to put forth their experiences and help others!! Thank you