Black LTZ

Not the AC vents, noise continues regardless of vents open / close, AC on or off. Dealer agrees it is caused by the large towing mirrors; GM has issued a bulletin about the issue but says the noise is acceptable. I received a follow up note from the Service Manger at AutoNation Chevrolet here in Peoria; so I responded to him voicing my concerns. No response back.....

Just picked my 2016 2500HD up from the service department at the dealer here in Peoria AZ. Service adviser says they were able to hear the wind noise, it's a known issue originating from the trailer mirrors. GM says its acceptable, not sure I agree at almost $70K they should be able to come up with a fix. Mine sounds just like the one from the video posted; without that noise the cabin would be perfectly quiet at 80mph. Love the truck, purchased new in November to replace my 2011 Denali HD, thought I was stepping up in technology and quality.