Hey guys, recently when I back out of my driveway I have noticed my brakes squeak. Not very loudly though, almost like a dog whistle. What I assumed was that it could be possible brake dust. I googled around for a bit and couldn't find a steady answer. Came to an assumption that it couldn't be fatal, (warped rotor, bad brakes etc...) But I'm just curious on HT's input. Thanks guys.

P.S (Brakes only squeak in reverse)

 

could be a sticky slider, take the caliper off if you want and lube up the slider and check pads for wear.

 

Or a bent dust shield, that little metal plate around the caliper, if it gets bent it rubs

 

I'll check on both of those issues tomorrow, thanks guys