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OK. Down different paths we go. Best of luck.

And how many have folded the mirrors in to see how the racket abates? There's no dispute about the existence of a problem and GM would surely like to find the source. Not to be a pest but I've read reams of complaints with little research as to the source. It's far too easy to blame GM and yes they should have caught this at the wind tunnel but it's evident at this point that griping about it is hardly the cure. Meanwhile, I'm going with trial and error. I'm with you on this Boaz, because maybe this pig just needs more lipstick.

Well, my 2016 Yukon SLT 4x4 is unbearably noisy when the rear windows are partially down at various speeds due to the intense buffeting of air pressure changes. 5.3, 6sp, 3.08 axles, Diablo Sport Active Fuel Management Module-plugs into OBDII port to enable full-time V-8 operation without leaving a signature on the PCM, and it has 2800 miles on it now. I found that if I FOLD the MIRRORS IN, the noise abates to a reasonable level. Now, how do I achieve that noise level at all times? I haven't seen an aftermarket mirror set nor mirror covers with better aerodynamics. My dogs are getting Pretty cranky over the windows being up at speed and I'm getting pretty tired of screwing with the window switches. Overall, I'm pretty happy with it, but the barn door front end sucks because of air flow and piss-poor visibility when cornering. The Lane Keep Assist camera puked at 100 miles. My 2004 AWD Yukon is looking better every day. Glad I kept it, because I don't see the "progress" being worth it. I'm a retired GM non-mgmt quality guy and I see the EPA regs destroying what should be flagship vehicles to please the Green Sheep. Rant/