01 1.6 Squeaking sound from front brake - Jowner
Squeaking sound come from front brake every now and again. It doesn't happen consistently i.e. sometimes work perfectly while other times just give out this annoying sound. This annoying sounds come out more often than usual in the past 2 months.

Just got the car back from service & MOT. The mechanic suspect it might have something to do with brake disc being distorted perhaps? He hasn't fixed it as he couldn't work out why after checked and polished brake pad etc.. What else? It passed MOT as it worked perfectly then!

The mechanic works from his back garden workshop, but has been really good all along. Will a proper car lift shows up something wrong, which means I need to bring it to a more well establshed garage?
01 1.6 Squeaking sound from front brake - piston power
Glazed pads due to heavy braking, or may just require stripping down some copperslip added to the back of the pads. and re fit.
01 1.6 Squeaking sound from front brake - bathtub tom
Anti-squeal shims fitted?

Low pad warning squeal device?
01 1.6 Squeaking sound from front brake - mikej
"Low pad warning squeal device?"

My Mazda 6 certainly has this - check your Corolla's handbook to see if Toyota do something similar.