2015 Subaru Legacy Engine Problems
- Complaints
- 23about this part
- Share
- 14%of 160 total for the year
- Median mileage
- 17,400miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 23 complaints about the engine of the 2015 Subaru Legacy, 14% of the 160 complaints for this model year. Where a mileage was given, the median is 17,400 miles. 3 of these say a crash was involved and 2 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“At 300 miles, coming off highway, slowed down to 5 MPH and went thru toll booth. I then stepped on gas, had hesitation, no response then acceleration. Happened again on 5/11/15 when I had 900 miles. Came off highway on to local streets. This time had 5-7 big hesitations over 10 minute period. Very dangerous because I was making a u-turn and car hesitated then accelerated as I was making u-turn !! Returned car to dealer. Do not want to drive it until fixed.”
NHTSA complaint #10716292, filed 2015-05, 300 miles“Since november of 2017 while driving the car it has intermittently jerked and shook excessively, bucking like a mad horse. Car was brought in to dealer for diagnosis. Dealer was not able to identify the cause. After several visits to dealer where I was assured the problem was fixed the same problem continued. It should be noted that the car, while driving started to shut down and I needed to be towed to the dealer. Dealer claimed the problem was a faulty spark plug. Car was then returned to me. Yet again the problem persisted and had I to crawl like a turtle back to home. …”
NHTSA complaint #11166624, filed 2019-01, 90,101 miles“On april 11th we bought our brand new Subaru Legacy it had maybe 34 miiles on it (give or take) my husband drives the car and a couple of days having the car the radio/backup camera/phone system crashes- it happened a couple of times. On april 14th my husband brought the car into service. Now I am going to just speed things up put all service visits in one explanation as I do not have many characters left. In the 8 times that we have been to service with loaner cars, they replaced the radio once. They couldn't replicate the issue, so we sent them video of it. …”
NHTSA complaint #10724952, filed 2015-06, 100 miles“I was driving to work when the engine low oil light came on. I checked the oil immediately and it appeared to be down about a quart. I contacted the dealership and took it in the next day. They confirmed the oil was down about a quart and started an engine oil study. I am to take the car back to the dealership in 1200 to have the oil level checked. This appears to be a known problem with the 2011 and above subarus. This all happened a month or so after I had already taken the car to the dealership after having a burnt oil smell from outside of the car. Nothing was found.”
NHTSA complaint #10681898, filed 2015-02, 17,400 miles“May 8th 2015 we purchased our 2015 Subaru Legacy 2.5i premium. #1. Very prominent coolant smell from passenger side engine area. Loosing coolant. #2. 600 miles- transmission/ ecu /throttle delay , a 3-5 sec delay in the response when going from (r) into (d) and the same 3-5 sec delay is duplicated when going from a stop to accelerating the car. Concerning. #3 3000 miles, loud wind noise is heard from all windows. Windows were replaced by dealer, but noise still exists. #4 the gas door will not release and continues to get stuck. #5 8,500 miles- excessive water entering into engine bay. …”
NHTSA complaint #10810556, filed 2015-12, 200 milesRelated service bulletins
- 11034240Jun 1, 2026This bulletin announces the availability of reprogramming files for the Engine Control Module (ECM) for certain vehicles equipped with 3.6L engines.
- 11027982Jan 12, 2026This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES).
- 11027083Dec 8, 2025This Service Information Bulletin provides the Service Manual Correction to the diagnostic procedure for DTC B2A16 (Immobilizer Key Collation Diagnosis).
- 11027081Dec 8, 2025This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1) and P2097 (POST CATALYST FUEL TRIM SYSTEM TOO RICH…
- 11025790Nov 20, 2025This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1) and P2097 (POST CATALYST FUEL TRIM SYSTEM TOO RICH…
- 11023536Sep 30, 2025In the interest of customer satisfaction Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage in the models listed. The extension will address…
- 11022305Aug 11, 2025Subaru Service Technical Support Newsletter special edition.
- 11017452Apr 22, 2025This Bulletin announces the diagnostic procedures to be followed when diagnosing engine oil leakage on FA and FB type engines.
- 11016224Mar 24, 2025The purpose of this bulletin is to advise of SOA’s revised Catalytic Converter Recycling Program shipping procedure.
- 11008282Sep 27, 2024This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 3 | 50% |
| 2024 | 1 | 6% |
| 2022 | 1 | 3% |
| 2021 | 2 | 6% |
| 2020 | 4 | 3% |
| 2019 | 6 | 5% |
| 2018 | 10 | 9% |
| 2017 | 5 | 4% |
| 2016 | 7 | 5% |
| 2015 | 23 | 14% |
| 2014 | 5 | 9% |
| 2013 | 18 | 27% |
| 2012 | 23 | 26% |
| 2011 | 22 | 13% |
| 2010 | 31 | 21% |
| 2009 | 7 | 11% |
| 2008 | 4 | 6% |
| 2007 | 7 | 21% |
| 2006 | 16 | 18% |
| 2005 | 4 | 2% |
| 2004 | 5 | 10% |
| 2003 | 4 | 7% |
| 2002 | 4 | 7% |
| 2001 | 3 | 4% |
| 2000 | 1 | 1% |
| 1999 | 2 | 2% |
| 1997 | 1 | 1% |
Other parts of the 2015 Subaru Legacy
41 complaintsElectrical system
37 complaintsOther or unknown
28 complaintsFuel system
15 complaintsTransmission and drivetrain
15 complaintsVehicle speed control
14 complaintsBrakes
13 complaintsAir bags
10 complaintsBody and structure
10 complaintsForward collision avoidance
4 complaintsSuspension
4 complaintsExterior lighting
3 complaints
← All problems reported for the 2015 Subaru Legacy
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology