We have a Jeep Grand Cherokee that makes a horrible squealing sound when braking and we had the pads checked and they are fine, however, the problem we were told was that Chrysler/Jeep products have brakes that can crystalize (sp?) from moisture and that is what causes the noise and can be corrected by having the rotors turned ..... very annoying noise, but, does not have to be corrected in order to brake safely..... Andy