Which parts fail
Components named in complaints (service brakes, ABS, rotors and pads, parking brake).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2010 Subaru Outback owners, lightly cleaned up (personal details are redacted by NHTSA).
The brakes completely gave out while the vehicle was being driven, without warning. The BRAKE light did not turn on until after the car had been stopped and restarted and the brakes had already gone out. Fortunately, the vehicle was being driven on a side street, and it was able to coast into a parking lot. Had the brakes given out before then, when it was on the highway, the outcome could have been far worse. The vehicle was towed to a mechanic. The mechanic stated that once they removed the cover over the rear junction box near the fuel tank, they found the junction box to be corroded away. The vehicle has been to several mechanics over the past several years, and none of them have ever identified any issues with the brakes or brake lines. Subaru had issued a recall for the same issue but for model years 05 to 09.
The contact owns a 2010 Subaru Outback. The contact stated while driving at 5 MPH, the brake pedal was depressed and failed to respond. The brake warning light was illuminated. The contact attempted to contact the manufacturer and was informed that the vehicle would not be covered under a recall. The vehicle was then taken to an independent mechanic who diagnosed the vehicle with catastrophic brake line failure due to corrosion. The vehicle was repaired. The dealer was not made aware of the failure. The manufacturer was made aware of the failure. The failure mileage was approximately 100,000.
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. …
This car is a very well-maintained, low-use vehicle with regular oil changes and routine maintenance performed on schedule. Early in this drive, I noticed an unusual hissing sound as I approached a stop. When I tried to brake, I realized my brakes didn't seem to be responding. I pressed the brake pedal harder and realized that with 50-100 pounds of pressure (guess), I could slow the car down. As I came to a stop, the engine died. I restarted the car, and it died again immediately. After the following restart, I realized I could manually keep the RPM up in neutral while at stops, and press with significant force to get the car to stop. Had I not been comfortable two foot driving or understood the issue, this surely would have resulted in a crash of some sort. The car indicated a check engine light, loss of traction control, a flashing BRAKE light, and a flashing cruise control light. …
I noticed my brake pedal suddenly sink to the floor, and I have to press the pedal all the way to the bottom to get a little bit of brake. Was able to make it back home. Upon inspection, I noticed brake fluid dripping from rear passenger side brake pipe, I took off a plastic cover that covers the brake line, and noticed heavy rust on a "Manifold" where two brake lines coming from front of the car and two lines going to two side of rear brakes. The brake line is leaking right from there. I feel sudden failure of this part can lead to fatal accident, luckily I was very close to home and on a local road when I experience this. And Subaru should 1. make it more easy for inspection. 2. notify the public. 3. get more rust proof measures, 4. get it fixed for the current owners. Thanks.
Complete brake failure due to leakage at 4 way b8rake line junction located above the gas tank on right side rear of vehicle. Known and reported issue due to rust and corrosion of brake lines in this UNPROTECTED area of vehicle. It has been a known problem on these 4th generation vehicles...no recall instituted. Wife and I lucky to be alive. Ridiculous that Subaru America has not been SUMMONED to conform to a NTHSA recall and make repairs on those vehicles affected. Absolutely NO indication failure was about to occur resulting in complete brake failure. Amazingly, this happened in such an area where I was able to roll to a stop and take action to transport the vehicle to my home where it is officially grounded in my garage. Condition was confirmed by a Subaru Master Technician.
The brake system failed when the brake lines burst at the four way connector on the right, rear side of the vehicle. There were no indicator lights lit on the dash until after losing all braking. Luckily I was traveling slowly and was able to roll to a stop safely. This is due to corrosion on the brake lines in the area of the four way connector. There is a small inspection door on the cover for this connector, so the issue is easily seen. This has been an issue for Subarus in the past with many recalls for this issue on similar models. Unfortunately the recalls end in 2009 for Outbacks while mine is a 2010. Obviously this issue has not been corrected by the manufacturer.
Failure of rear hydraulic braking system (brake lines) due to corrosion. Steady loss of fluid due to corrosion around the double brake line union underneath rear passenger side. Plastic cover prevents corrosion issues from being spotted prior to it becoming a catastrophic failure. Vehicle has been inspected by a service center. The "brake" warning lamp illuminated in the dash to alert the drivers of a possible problem, but a significant amount of fluid was lost.
Brake failure - after inspecting vehicle 6/20/2024 noted brake fluid leaking from underneath the vehicles right hand side. Removed splash guard and noticed the brake lines had extensive corrosion in a small section with no protective coating. Brake fluid noted leaking from the unprotected area. The rest of the brake lines were fully intact.
The abs system failed at 117K miles and rendered the ABS inoperative. The Electronic parking brake recall could not be completed because of this. We were quoted $1600 to replace the abs pump and computer so that the recall could be completed. The vehicle was dangerously difficult to stop and almost caused a crash.
Related recalls
Parking brake
Subaru of America, Inc. (Subaru) is recalling certain 2010-2014 Subaru Legacy and Outback vehicles equipped with a manual transmission. The electronic parking brake (EPB) may not engage as intended, allowing the vehicle to rollaway if the transmission is not in the proper gear when parked.
Remedy: Subaru will notify owners, and dealers will replace the EPB actuator assembly, free of charge. The recall began July 19, 2019. Owners may contact Subaru customer service at 1-844-373-6614.
Brake complaints in other Outback years
Frequently asked questions
How common are brake problems on the 2010 Subaru Outback?
NHTSA has 40 complaints about the brakes of the 2010 Subaru Outback, 11% of the model year's 360 complaints. The component named most often is driveline › hydraulic › actuator (1 mentions).
Is there a recall for 2010 Subaru Outback brake problems?
Yes — NHTSA recall 18V-626 (parking brake, Sep 13, 2018). Recall repairs are free at authorized dealers.
At what mileage do 2010 Subaru Outback brake problems start?
Half of the complaints with a recorded mileage happened before about 121,000 miles, and 7% before 25,000 miles.
Is it dangerous?
Owners linked 2 crashes, 1 fire and 0 injuries to brakes problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.