Hi there, new to the forum. I can't quite find anything that addresses exactly what's going on. I'm pretty new to the DIY world. Just moved to Vegas away from a family member's shop that I did my own brakes and oil at. I've never had problems changing brakes before, but the latest job on my 2011 Camry has me confused. It's been almost 2 months and the ceramic brakes have a very loud, high pitch hum/squeal when I brake. It doesn't matter how warm the brakes are. I have no idea what's wrong. I thought it was one side and looked at the rotor and pads and everything looks fine. Now it may be the other. Any ideas before I waste money having a mechanic charge me to look at it? ps. I noticed when I was hand cranking the lug nuts the car rocked a little and squeaked a little??

 

If you did not use Toyota brand pads try switching.

Makes sure any pad shims are in place and use brake lube at metal contact points and between shim and pad.

 

did you machine the rotors or fit new ones ?

while doing what toyomoho suggests

make sure slides and calliper pistons are free and move easily

Genuine pads
2007 2016 Toyota Camry Genuine Front Brake Pads | eBay