One problem related to brake disc caliper has been reported for the 2009 Volvo XC70. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Volvo XC70 based on all problems reported for the 2009 XC70.
Brake pads on passenger side/right rear wearing prematurely or faster than pads on other wheels, or in relation to other 3 wheels. Either brake calipers are sticking or there is a software or electronic braking problem on the car. Local Volvo dealer (only one in idaho) indicated that the Volvo regional rep instructed service department to notify them of each case this is reported by an owner - unofficial TSB.