Hey Scotty,

I recently bought a 2011 IS 250, I had the salesman change the rear rotors and pads since they were covered in rust with small streaks of shine on them.  They argued that the fronts were fine and refused to change them too.  They were good for about a month and a half, now they creak in a rhythmic pattern when lightly pressing the brake pedal from about 15-20 mph until the car is stopped.  If I press hard on the brakes the noise goes away, but as soon as I ease up the noise comes back.  My guess is, since the rear pads weren't working properly, the fronts had to do most of the work and are worn/ warped.  Should I start with replacing the rotors and pads to see if that fixes the problem or start somewhere else?

Thank you!