19highcountry

Just purchased a 2019 -2500 High Country Crew Cab with 30,000 miles and have the wind noise at 40 MPH coming from the top of door at the curve to the rear. It is very annoying and I plan on cross country travel. My dealer (Wilkins Buick GMC) replaced the mirror gasket that I suggested to them after reading about it on this forum that they found ripped on the left side. They added a new door bolt that is a new design and they also replaced my door gasket, but I have still have wind noise in my ear. WHAT TO DO ? This was a Certified Used and was air noise was checked off as OK on the 172 point Certified Inspection.