Have any of you 7th gen. owners experienced any rattles so far?

There is a rattle coming from somewhere in the upper dashboard on the drivers side. I'm taking it to the dealer today.

Will they do anything about it? What can I expect when I take the car back to the dealer? This is my first car purchase and I've never taken a car to the service department of a dealer before. That's why I have these questions. Am I over-reacting?

Thanks