 Rear brake squeal is a major problem with these Ford Focus for a number of model years and Ford refuses to fix or acknowlege the issue except for a few. We bought 3 of these and have the same problem on all.  After about 2 years the rear brake squeal is so loud it is deafening.  The dealship has not been able to fix the problem and we have spent a lot of money on them.  Ford tells us we are just out of luck.  Buyer beware.