I sort of disagree with mikeru82 on the issue being the cracked frame. That was definitely an issue on the earlier models, but the newer models have a newer style frame that doesn't appear to be cracking. But, the windows still leak. Many have had the windows replaced due to the crack and got the new style, just to have the water leaking a year later. The issue appears to be with the adhesive being used. My back glass was leaking, but never had a frame crack. I fixed it by using flowable caulk to seal the window from the outside. The flowable caulk flows into the upper window channel and disappears between the glass and the body sealing up any and all pinholes in the factory adhesive. I've been leak free for awhile now and I didn't have to deal with the dealership.