One problem related to differential unit has been reported for the 2009 Ford Edge. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Ford Edge based on all problems reported for the 2009 Edge.
Differential problems caused by using the manufacturer provided spare tire. Spare tire is much smaller then tires required by the manufacturer, when spare tire was used it caused stress to the differential causing it to break. This is a well documented problem in the internet and should be fixed by the manufacturer. The manufacturer is assuring a costly break down of their vehicles by ignoring this problem. I ask anyone responsible to take appropriate action and force the manufacturer to pay for damages cause by their neglect.