My 2016 has a buffet in the upper drivers side window area. It only happens when it’s windy outside and driving in a crosswind. My 2019 is quiet.

not sure if the window isn’t going all the way up or ??? Window is sealed that no water enters.

just annoying

 

Some one reported a while ago that their door was not completely shut tight at the top corner. I think he fixed it by opened then slightly bend the top in just a little.
Also check weather strip to see if it has enough slack for the curve corner.

 

Oh yeah I remember that post. He took it to a body shop and they bent the top of the door by hand IIRC.

Edit: Found it.
https://www.clublexus.com/forums/gx-...oor-frame.html