2003 Tahoe Window Rattle when down all the way
 

I have done a lot of research to try to solve this, and I have not found the silver bullet as of yet.

My LT has a few problems, two main ones being the classic “rain-makes-the-seat-heat-turn-on-randomly” and also this issue stated in the title.

I saw a post about when the windows are partially down it makes rattling noise when driving but I always have mine all the way down, and nothing helps except if I put my finger down inside to window seal to hold the window inside the door.

Also, not helping at all, some people said “Yes I have the problem with the doors are down and I took it in for service because I have a warranty”

I am the warranty. So tell me how to fix it and it will be done. Is it the window regulator? I don’t know. It happens on both the drivers and passengers side and I am not completely sure it’s happening in the rear. The rear appear to be holding true. However, I’d also like to mention the windows are rolling up a little slower than they used to or probably should. Could this also be another hint towards a broken regulator?

Thanks for reading, hopefully I can get this solved soon. (I can also upload a video on the issue happening if that would help.)