my rear brakes squeal about 75% of the time i brake in reverse. it's not necessarily when i'm in reverse gear, just when the car is moving/rolling backwards and i brake there'll be a squeal. no noises when braking during forward movement.
i'm almost certain it's just the rear-passenger side too.

any ideas on what to check and how to fix it?

thanks

 

Check your pads, they are probably wearing thin. If they arn't then I wouldn't worry about it.

 

well i think the pads have less then 7k on em, all street/highway miles so i guess i shouldn't be worrying.
althought i've been meaning to change out the brake rotors so i might as well change out the pads too.

 

It's probably just a difference in the way the vibration in the caliper resonates when you're going backwards (since you're mostly going forward).

 

hope so... thanks

 

nothing to worry about if it's only when you back up. the STi has some mean pads, and after i seated them, the still squeek a little going forwards at low break pressure. and when i back up, even a tap and they squeek like crazy.

fwik, if you have higher grip pads, they will squeek. pay attention for vibration or anything else than a high squeek, unless they are old and then it's just common sense that they are probably out.

 

mine do that too. my mechanic said my rear brake rotors needed to be replaced. the pads are pretty fresh ebc greens.