One problem related to brake master cylinder has been reported for the 2005 Subaru Outback. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Subaru Outback based on all problems reported for the 2005 Outback.
The vehicle has soft brakes, it is common among this generation. It does not matter if everything is replaced. There is still a long/soft pedal travel. This may be due to an inadequate master cylinder size or brake booster size. This is a constant issue, does not matter when you use the brakes, it always is slow to stop and can be a bit scary.