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2009 Toyota Corolla Brake Noise
My 2009 Corolla with 12k miles had some squealing noises since last week during braking. The dealer first said the rotor is over scored, so they machined the rotor. After that, it has the squealing noise every time I pressed the brake! They then said the pad is cracked. After changing the pad, I can still hear some noise. Is this normal? or is it a design problem? I found some other similar complaints online. For example:
http://answers.yahoo.com/question/index?qid=20090708200143AAQ7Ik8
http://www.cargurus.com/Cars/Reviews-c9224-2009-Corolla.html?page=1
"Braking takes a while and the pads seem to wear rather fast (stock brakes)."
Where are you from? I am from Trinidad and Tobago and I own a 2009 corolla 14 mths old.
I have had the EXACT same problems.The problem still exists. They are trying to tell me there is nothing wrong.
The other day my brakes failed. That is went to the floor before the car stopped.
I think something is very wrong.My car is doing 17 000 kilometers.
Since you said you got the rotors re-machined, you still might need them to be broken in; along with the brake pads. You need to "heat cycle" the rotors in
order to get the surface broken in. Go about 30mph down your streets and brake slightly hard to build up some heat. Keep doing this for about a week's
worth of driving. Just one thing to keep in mind though, DO NOT, put on your e-brake while parked while doing this process. It could warp the rotors and
that is never good...
just finished chasing a a brake noise in my 2009 corolla---noise came from lack of lubrication on the slide assemblies (top and bottom of each brake pad) only a little bit of grease applied where the brake disk rides in the slider assembly cured my noise problem
Thanks all for the reply. Here is my update:
The dealer changed the entire brake system (rotor and pad) for me, but they said I will lose the warranty for the brakes.
Since they told me to press harder when I apply the brake, I searched the internet and found some articles about bed-in, for example:
http://www.stoptech.com/tech_info/wp_bedinstock.shtml
http://volvospeed.com/Reviews/seasoning.htm
Their suggestions are similar to Stag_123's, ie, partly applying the brakes every 2 minutes for 10 times, waiting for 2~3 hours, and repeating the process, to allow the pad material to be evenly spread to the rotors.
I also doubled-checked with the dealer before I did that, and they agreed.
However, after two weeks, the noise came back again! I was really disappointed with Corolla. Can anyone tell me what should I do now? Is it true that once I change something during the warranty period, I will lose the warranty for the new parts?
Thanks.
Use some brake cleaner (might help) Be more firm and deliberate when pressing the break pedal, not like you're hesitating like most people ride their brakes in traffic. (most make a little noise when it's cold, but once the whole car is warm enough for a drive, most noises tend to go away - even squeeky belts) Could be air bubbles in your brake lines.. Or untrustworthy mechanics... <-- Then again, it's an economy passenger car, not a Lexus or Mercedes... I turn up the radio so I can't hear it - car still stops when I press on the brake pedal - that's most important.

