Just bought the vehicle and it is still under manufacturer warranty, so hoping it gets fixed under the warranty. I have found a service bullentin but I can't find the results of the service bullentin, like what they found the solution to be. It states Engineering is asking for technicians to send pics when a customer is commenting on water leaking from the sunroof area. I have an appointment at the GM dealer on Monday. Just like to investigate to have more information should I be told they can't duplicate the propblem. :)