As indicated in my previous posts I had a leak as well.
I took my truck to the dealer on 1/5/19 and got it back on 1/15/19.
My dealer did not replace the window. They re-set my current one. Didn't really care as long as it doesn't leak.
While detailing the interior of my truck after getting it back I discovered a large gouge in the plastic kick panel on the drivers side back seat area that they damaged while removing and re-installing the back seats. I also found some minor paint chips under the back glass.
In addition, after I picked it up, I kept hearing something roll around the dash area every time I turned. Thought it was the key FOB but after eliminating that possibility I found a loose interior screw rolling around the dash board storage area. Then I found another one in the center console rear cup holder. Then, predictably, I started hearing a squeak from the rear seat area after hitting any bumps...assuming it's the two missing interior screws I found. I expected that stuff when I was 16 and my friend and I took apart my dash to install a radio and had left-over screws when we finished but not when I take my truck to a dealer. These are supposed to be professionals.
To make matters worse, after the first rain storm, my truck leaked again!
Took it back to the dealer and told my service adviser that everyone I know who has had this problem had their windows replaced, not re-sealed.
He called a few days ago and claims GM will not sign off on a window replacement. He claims they found the leak and sealed it. Sure...like they did the first time. Now they are waiting on the kick panel to come in that they damaged.
On a side note, prior to taking my truck in the first time, I messaged the GMCustomerService guy who sometimes responds to posts offering to work in conjunction with the dealer as an additional layer of support. No offense, seems like a nice guy, but other than e-mailing the dealership's 'customer experience manager' I don't really know what else they do. It doesn't seem to have helped my situation at all.
I really do love the truck but this ordeal is sucking the joy out of the ownership experience.