2010 Subaru Outback

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 took the car immediately to a local shop where they identified the problem as a vacuum leak at the brake booster. The plastic piece that the hose clamps onto had cracked off, leading to this problem. This make and model does not seem to have a check valve downstream of this component.

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.

It is a known issue with subarus of this year that the engine will stall at random intervals when stopping, weather at a stop sign or stop light, warm or cold, fast stops or regular stopping. There is no consistency to it, completely random. There are no warning lights that appear, I have not taken this car to the dealer because after purchasing it I cannot afford to take it to the dealer. I purchased this car used for my elderly parents and this is a disturbing problem that could get them hurt or killed. Why has this KNOWN issue not been recalled? there are multiple service bulletins reported to NHTSA addressing this issue but no recall?

Brake pedal went to the floor while applying the brake. Pulled car back up driveway and parked and noted almost zero ability to brake the car, pedal goes to floor when applying pressure to the pedal, almost zero ability to come to stop. Checked fluid - was still in reservoir but not at max. level (b/n max and min.). Checked under hood at and no signs of any leaks in engine compartment or on any lines in engine compartment (all good). Looked under car and no signs of leaking. Opened reservoir to top off to max. and by time I went into garage and came back with brake fluid the reservoir was empty, reexamined and found brake fluid leaking from a plastic cover on passenger side rear of car. Placed cover to soak up all fluid dripping/ streaming down to the ground. Called my local mechanic, and he indicated car may need to be towed to be serviced. In looking online, I have found many accounts of this issue with 2010 Subaru outback owners in northern areas where corrosion at the 4-way connector of the brakes lines causes immediate loss of braking and loss of all fluid. Not sure of cost, but I am thinking once it is examined the 4-way connector and all 4 brake lines may need to be replaced. This appears to be a widely known issue and for some reason this was never included or changed from 2005-2009 Subaru recalls to change for 2010 models, so I would like to know why this and the cost for repairs are not covered by Subaru as a RECALL. This could have caused a major accident and severe injury or death if traveling at speed on highway or in area needing hard braking to come to immediate stop. This is now the third major issue I have had in less than 12-months and 2nd from corrosion on my 2010 Subaru. Last summer my front frame had corrosion damage and required replacement. This brake issue with corrosion at the lines to the 4-way connector had recalls in earlier models, but why not in 2010 Subaru Outbacks? Very Unsafe and No Warning Light prior to brake loss !

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.

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.

Engine subframe catastrophic failure (left side) due to severe corrosion. Lower control arm detached resulting in erratic handling and pulling. Car unsafe to drive and expensive to repair at ~$2200. Did research and found to be a very common complaint for 2010-2014. Recall needs to be issued to replace corroded subframes.

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.

I see many many complaints about the head gasket material Subaru used was not compatible with the very fluid that is needed for the cars engine to not blow up.....coolant. Subaru knows the head gasket material is ruined by the coolant it needs but has left us consumers to deal with a very costly, devastating issue such as what I just want through and am still in the middle of a fight with dealer who sold me a car for 10995 and I had it 2 weeks....coolant blew everywhere had to fight with dealership to get them to tow it. I was yelled at, hung up on, calls not returned all while I have no car no way to work and as a [XXX] and a child to raise, I do not have options and live by a thread and paycheck to paycheck.....It should not be allowed that Subaru doesn't fix that since it is a manufacturing defect that they made it incompatible with the coolant it needs. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact's father owned a 2010 Subaru Outback. The contact's father received recall notifications of NHTSA Campaign Number: 20V001000 (Air Bags) and would like to be removed from the recall distribution list because he no longer owns the vehicle, and the vehicle was exported to Canada. The dealer and the manufacturer were not contacted.

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.

Vehicle has an automatic transmission and it stalls when stopping. There is no warning light on the dash. This happens more frequently when the vehicle is warm, in early operation it may only hesitate or run rough while stopping. A warm a stop is more likely to stall the vehicle than a slow stop. Hard braking at operating temperature will stall the vehicle without fail. This has been happening since I bought it and it occurs with each drive every day.

2010 Outback Subframe or cradle Subaru OEM # 50527AJ01A is a vital safety component and as designed and installed completely supports the weight of the engine and transmission - I have excessive rust and Corrosion of sub frame. This should be a recall. A google search shows this is a common issue for this model. Please review my complaint

Brake line corrosion, I noticed it about 10 months after buying the car. they finally broke five days ago I called Subaru. They told me it’s just regular wear and tear and there is no recall for the corroded brake lines and the junction box.

The contact owns a 2010 Subaru Outback. The contact stated that on numerous occasions while driving at undisclosed speeds, the vehicle hesitated. No warning light was illuminated. The contact stated that while shifted in reverse, the vehicle inadvertently shifted into drive independently. The contact turned off and restart the vehicle. The contact then stated that he was able navigate the vehicle back onto the road. The vehicle was taken to the dealer where the failure could not be duplicated. The manufacturer was notified of the failure and the contact was informed that the warranty had expired but no further assistance was provided. The failure mileage was approximately 196,000.

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.

All instrument and waning lights illuminated and the engine shut down while driving. Took to the Subaru dealer repair shop and the vehicle was diagnosed with a head gasket leak that caused oil to mix with the coolant. This is a low mileage vehicle, 67,597 miles, that has been maintained by Subaru certified mechanics.

This is not about my car, but instead many different cars. When a cars lights are set to it's parking lights or running lights position, often located on the turn signal stalk, at night it appears to the driver that their headlights are on, when in fact only the "parking lights are on in front. This is a problem, but not what I'm reporting. When in the parking light position (at night), it appears the headlights are on because there's some light out front AND the instrument cluster is lit up as well. Here's the defect in design, the brake lights are NOT on, completely dark at the rear of the vehicle, so drivers are driving on the highway thinking their headlights and brakes lights are on, when they're not. When the parking light position is active, it should include the brake lights. Can't imagine how many rear-enders are because of this design flaw. *The rotating light switch on turn signal stalks often get unknowingly rotated out of Auto or the headlight position when the turn signal is repeatedly used.

While driving at highway speed the tire separated at the seam of the sidewall and tread. Tire tread depth was between 9–9.5/32nd on the tire. 225/60 r17 tire. Because of the complete separation of the tire and how sudden the separation occurred, it caused the vehicle to lose control, thankfully the driver was able to get control of the vehicle and get it start safely. The safety of all occupants and vehicles on the roadway were put at risk. Tire was taken to the retailer (car dealership), retailer and consumer contacted the manufacturer who stated this is not a manufacture defect.