Whistle noise at high speeds

[jim lag]

IDK then. I also originally thought the whistling was coming from the mirror. I lower my drivers window about 1/4" and the whistling stops every time. The window is still sealed as I get no wind noise. I have a 2015 2500 crew cab with 41k miles. I discovered this solution about 25k miles ago. Good luck with your noise.

[jim lag]

IDK then. I also originally thought the whistling was coming from the mirror. I lower my drivers window about 1/4" and the whistling stops every time. The window is still sealed as I get no wind noise. I have a 2015 2500 crew cab with 41k miles. I discovered this solution about 25k miles ago. Good luck with your noise.

[Whitney Millican]

Has anyone found a successful fix to this? 

[Reparks]

We bought our 2021 Chevy Truck  brand new and it started doing this whistle noise right away. It seems to come from the mirrors and if you fold them in it lessens.  Has anybody heard of a fix for this.  Doesn't matter what speed we go.  Anything above 40 they start howling.