2015 Subaru Legacy engine problems

Filed Feb 27, 2026 · Driver assistance, Engine · NJ · crash · 3 injuries

I am reporting a Sudden Unintended Deceleration event in my Subaru. The vehicle grinded to a halt without driver input. The car stopped in the left lane of a major highway. We put on our hazards and called the state police for help. They were unable to get to us in time. We were hit from the rear. The car's failure created a stationary hazard that led to a high-speed rear-end collision by a Jeep and truck which caused the car to do a 360-degree spin.

Filed Jan 31, 2026 · Brakes, Engine · NY

Incident ~ 5:40 pm, Geneva NY Weather ~ 10 F, not snowing. Background. On or shortly after being started, the vehicle had exhibited prior incidents of extremely rapid engine acceleration not initiated by the operator. Most recently the day before. The incident: I was in the process of very slowly parking the vehicle in a narrow laneway, and positioning the vehicle behind and in line of one other, both parallel to the laneway, in a small area that had been cleared of snow, leaving the laneway open. First, I stopped the vehicle opposite of the parked vehicle's driver side door. Second, I reversed and backed up and positioned the vehicle behind that vehicle. This involved firmly stepping on the brake to stop the vehicle once well behind the parked vehicle. Third, while keeping my foot firmly pressed on the brake pedal, I moved the shift from reverse to forward. At that time, the front wheels were still fully turned to the left. Immediately on completing the shift to forward, my vehicle made a very rapid acceleration. My foot had remained firmly on the brake and had not touched the accelerator pedal. Despite my foot being firmly pressed on the brake pedal, my car surged forward, retracing the path that I had followed while backing up. I could hear the noise of the accelerated engine, and feel the fighting of the brake as the car surged uncontrolled for about four feet and then finally stopped. My foot had been fully depressed as hard as possible on the brake the entire time and did not touch the gas pedal at all. The owner of the parked vehicle observed the incident and expressed concern since the surge was dramatic, and stopped with the right corner of the front bumper of my car within a couple of inches of the left corner of the parked vehicle. The driver's car mat was in the correct position and did not interfere in any way with the operation of the vehicle. I did not inadvertently step on the accelerator. No warning lamps or messages. Cause Unknown.

Filed Apr 15, 2024 · Engine, Suspension · NY

Took it for inspection was told the part that holds the engine up is rotting away and it will not pass inspection next year this is disappointing I have cars older then this and they are in better condition this vehicle was brought brand new this should not occur I could understand if it was old this car is only 8yrs old I have pics to support

Filed Dec 5, 2023 · Engine · NC

Short Block needs to be replaced ($6,500) Yes, Scenic Subaru has the vehicle awaiting status of repairs (who is paying for service) Yes, my safety is at risk as the oil light has come on during the night when I'm alone on a deserted road. Service Department knows what the problem is - they are seeing alot fot this problem. Unknown on Inspections Yes, warning 'low oil' light came on. The oil light kept coming on. All service and maintenance done by Subaru. Now, Subaru Service Department informed that the Short Block needs to be replaced. From my research, it seems that this is a common problem with newer Subaru engines because they use a liquid engine sealant at the factory and when oil sits on the seals when the engine is not running, the sealant degrades and begins to leak. They also said there was nothing we could have done to prevent this and reiterated just how common with Subaru's. Replacing the Short Block on a car with low mileage (<75,000 miles) should be paid for by Subaru as this is a known manufacturing issue. I should not have to pay for this repair. Also, Subaru said trade in value has dropped due to this issue. Please email or call me as soon as possible. [XXX] [XXX] phone [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 22, 2023 · Engine · 140,000 miles · OH

The contact owns a 2015 Subaru Legacy. The contact stated that while the vehicle was at the dealer for service, he was informed that the front exhaust pipe was fractured. The dealer diagnosed that the front exhaust pipe needed to be replaced. The vehicle was not repaired. The contact stated that the front exhaust pipe was previously replaced under Subaru Campaign Number: WUJ-95 due to the failure; however, the failure persisted. The manufacturer was notified of the failure. The failure mileage was 140,000.

Filed Mar 23, 2022 · Electrical, Engine · NJ

I just brought this car a few months ago and i have been having alot of problem with it from engine oil low when it not to tpms light coming on and going off to now eletric parking brake locked up now i cant move my car and i work seven days a week and always maintain my cars was getting checked its really weird

Filed Feb 23, 2022 · Engine · 155,000 miles · CT

The contact owns a 2015 Subaru Legacy. The contact stated that the vehicle was consuming an excessive amount of engine oil every 3,000 miles. The vehicle was taken to an independent mechanic and the oil was changed. The contact stated that the oil light illuminated whenever the oil level was extremely low. The manufacturer was made aware of the failure. The approximate failure mileage was 155,000.

Filed Oct 6, 2021 · Engine · MN

10/4/21 engine suddenly surges while waiting in line at bank -- thunderous roar, heavy shaking. Assumed it was transmission problem. I put it in park and removed the key to stop it. I got out of car because I was scared. Got back in after a few minutes and started it up again. It shook and roared again. Turned it off and got back out. After about half an hour I tried again, and it seemed to run normally. Afraid to drive it home, I pulled into bank parking lot and called my husband for advice. It is a risk because car could accelerate unexpectedly and hit someone Not yet seen by dealer but I plan to take it in for repair No warning indicators noticed Prior to this for some weeks, car shuddered frequently when braking

Filed Apr 13, 2021 · Engine · 41,300 miles · NY

While driving, the car shut down. This occurred more than once. On the highway and on the local road. My mechanic replaced the negative battery terminal with sensor and replaced positive terminal

Filed Jan 6, 2021 · Engine · NJ

Good afternoon, I am the owner of a 2014 subaru legacy ([xxx]) which is located in ukraine, there is a revocable company under which my car falls (service campaign: wuj95), the importer and dealers refuse me this, what should I do? Here is the importer's answer: good afternoon, this campaign is for north america only. Campaigning in other regions is not possible. Yours faithfully, service manager [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).