This is interesting. The noise I am hearing is coming from the front interior. I don't think it has anything to do with pebbles accumulating in the rear bumper. Unless the ASC is piping it into the cabin with the exhaust notes! LOL

But you answered one mystery I had with the car. The constant noise of dirt / pebbles kicking up to the undercarriage.. Nice to know this is from the sticky Super Sports. Hadn't thought of this but makes sense.

 

Ok, my rattle is coming from the moonroof. If I hold tight the headliner from the moonroof I can eliminate the rattle.

I'm going to have my Lexus dealer figure it out how to fix it. This car is way too much dinero to live with.

 

Sadly, pebble removal did not fix my problem. And the dealer wanted no part of fixing the source of the pebble problem.

Pls post an update of moonroof situation.