I did a search on this issue and found nothing - hope this isn't a repost. When the moonroof is only in the tilt position, it sounds and feels like the headliner near the courtesy lights rattles a bit. Only happens when the moonroof is in the tilt position. I plan to call the dealer next week unless someone has an easy fix. TIA

 

a bunch of us have had this problem - esp. early-build cars. Could be your headliner clips or the plastic sunroof "wind deflector" rattling.

 

tedanddenise

Try this link:

http://www.acura-tl.com/forums/showthread.php?t=82826

Rob