Anyone else have this issue? It is coming from the passenger side front around the wheel well, but I can't narow it down...maybe a loose panel or cover in the engine bay, or in the wheel well itself..anyone else have this? seems only to happen when sitting at a light or something when you are at a low idle and more noticeable when the vehicle is pointed down hill??...

 

Have you popped your hood and listened for it while the engine was idling?
Should be pretty easy for the dealer to locate it.
Rattles are covered under warranty.