One problem related to brake grinding noise has been reported for the 2011 Ford Explorer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Ford Explorer based on all problems reported for the 2011 Explorer.
Both rear brake calipers are seized. I noticed the problem only when the brake pads had worn down to metal on metal and were causing a grinding noise. I've owned the vehicle for less than a year and bought it from a dealership.