I have a 2013 GS 350 F Sport with brake problems, I think. I replaced front pads & rotors (factory) and had my shop install, the day off after replacing it still squeaked. I gave it a couple of weeks and it became unbearable! I finally told my shop and the used car service writer advised getting shims on it- I got factory shims & it still squeaks! Like high pitched annoying embarrassing squeak. I finally took my car to Lexus and they said everything looked fine & that it's a "high performance" vehicle & it's going to happen & needs to be "broken" in....everybody else having problems with the brakes on this car? I picked up my car from Lexus on Saturday & it's squeaking still....high pitched squeak like I need brakes again.