Cabin pressure issues with 2015 Tahoe
It's called the helicopter effect. I assume you have the driver side window open? You need to open another window to combat the effect. I always lower the passenger side rear window an inch or 2 when I have the front driver window lowered at any level.
The windows are all up when this occurs.
Search Chevrolet Tahoe Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Chevrolet Tahoe Experts