Two problems related to brake master cylinder have been reported for the 2003 Subaru Outback. The most recently reported issues are listed below.
Brake failure at sub-freezing temperatures. Occurs every time temperature is below freezing. Failure appears to be in the master cylinder as in previous year model of this auto.
Consumer was backing out of a parking space pressed on the brake pedal and it went completely down to the floor. There was no advance warning. Consumer had the vehicle towed to the dealer, who informed the consumer that the master cylinder was defective, and had to be replaced. Consumer had the master cylinder replaced which was still under warranty. . . . . . . . Subaru regional representative met with owner's husband and had defective master cylinder sen tto Subaru for evaluation. Representative called after a few weeks and refused to discuss reasons for failure.