2014 RX450h Gen 3 - Sunroof knocking or tapping noise

[Jag-1978]

Hi there - Hope you can help with recently discovered issue on my 2014 RX450h Premier. When the sunroof is on tilt or open completely I'm getting a tapping knocking type sound coming from that area. Doesn't happen when closed. So thinking it might be something to do with the rails or guides. Would anyone have a clue as to what the issue could be. Secondly my car is still under warranty so before I call them just wanted to get some background if anyone has experienced such a thing  

Thanks in advance

Jag

[katabrontes]

Take care about opening or closing the roof pending diagnosis of the problem.  My 2006 RX350 had its sunroof motor burned out when I bought it.  It was traced, after replacing the motor twice, to a broken small plastic part in the mechanism which had jammed the roof and resulted in the operating tape being broken.  It took over 30 hours labour to fix it (covered by the dealer's warranty).

if your problem indicates and impending similar failure the roof might get stuck open!