I'm hoping someone can help with a very frustrating problem. I have 2015 Tahoe LTZ With about 35,000 miles. I just started to experience a water leak in dripping on the top headliner consolein and along the side pillars. Chevy dealership replaced the shark fin antenna and claimed that was the issue but I'm still getting the water. I'm now taking it in a second time and just do not have confidence in the dealership really making a concerted effort to find and fix the problem. Anybody else had this issue and can share with the problem came from?