John89

It isn't rust, it is brake dust or dirt. I have same thing, if you hit it with brush your see it clean up. Even with pressure washer really doesn't move unless you scrub it..

LeX2K

Maybe you'll see them when you turn 77

Working on a car right now with rusty wheels (being replaced) check it out. Clips are metal and rust weights themselves are lead.

Weights I've seen recently are not pure lead the entire weight rusts out.

Barncobob

if thats what it takes for 77 then Im rooting for rust..the last decade all my weights were the stick on.

Carbuff2

@StickmanS We have hated surface rust on CALIPERS (aside from rotors) for years over MANY vehicles. (Not just Toyota/Lexus)

I know that Urlik will agree, G2 Caliper Paints are an awesome product, and have lasted more than 20 years on one of our sports cars that uses Toyota calipers. The G2 kits include everything you need to prep and brush-paint your calipers.

https://g2usa.com/collections/brake-caliper-paint

I am a satisfied customer! No financial interest...

StickmanS

@Carbuff2 I understand it on rotors if a car sits for a while its normal, but on calipers? they should be coated with something from factory especially if you're already paying so much for a car, Im going to bring it up at the dealer when I go and try to push them to do something about it. I like how the 500h has them black and the lexus sticker on the front calipers might end up doing that but Ill try to push them to claim this under warranty but how I know dealers its always a hassle and never easy lol. But I appreciate the recommendation will save it for the future!

StickmanS

@estim8tr I too have had the microsuede separate but the dealer took care of it and just added probably a thin piece of foam on the clip and put it back in there but they know its a well known issue for all RX's.