Had water leaking into cab of truck. First incident they stated it was a rear window seal and it was ‘repaired’ under warranty. Second incident I was advised it was body panel separation where the cab roof and side body seam was leaking. It was repaired by sealing with ‘body seam sealer.’ I later read these repairs should have been welded. This was after the warranty expired and I had to pay for it. I then read on the Silverado/Sierra forum this repair should have been a weld not just ‘glued’ is this a safety issue?