NHTSA Complaint #11688669 — 2010 SUBARU OUTBACK

On Saturday, August 9, 2025, my brakes failed at highway speed. My vehicle's stopping distance was severely increased, forcing me to perform an emergency swerve into the leftmost lane to avoid rear-ending a truck. The maneuver was extremely hazardous, as it occurred in a construction zone with concrete barriers and no shoulder, leaving no safe escape path and endangering myself and others. I confirmed the cause was a catastrophic failure of the four-way brake line union block due to severe corrosion. There were no warning lamps or symptoms prior to the incident; the failure was sudden and total. I found that this defect is difficult to spot during inspections because the part is hidden by a plastic panel. The failed union block and corroded lines were removed and are available for inspection upon request. My research shows this is a widespread issue and the exact failure mode covered by Subaru Recall WQK-47R for 2005-2009 models. This known safety defect persists in the 2010-2014 generation, which is not covered by the recall. Prohibitive dealer repair costs are forcing unsafe workarounds. This defect presents an unreasonable risk to public safety, and I urge the NHTSA to investigate.