I had the same rattle. The dealer looked it up and found a TSB. They said they need to keep the car for 1 1/2 day. He let me read the TSB and they essentially remove the entire dash. They had to order the parts and I will drop it for the service in another week. They also had the cricket noise in the console as a TSB and will also fix that. Must be a common problem when they issue a TSB.