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EnginePart report

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 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2025350%
202416%
202213%
202126%
202043%
201965%
2018109%
201754%
201675%
20152314%
201459%
20131827%
20122326%
20112213%
20103121%
2009711%
200846%
2007721%
20061618%
200542%
2004510%
200347%
200247%
200134%
200011%
199922%
199711%

Other parts of the 2015 Subaru Legacy

Visibility (wipers, defrost, mirrors)
41 complaints
Electrical system
37 complaints
Other or unknown
28 complaints
Fuel system
15 complaints
Transmission and drivetrain
15 complaints
Vehicle speed control
14 complaints
Brakes
13 complaints
Air bags
10 complaints
Body and structure
10 complaints
Forward collision avoidance
4 complaints
Suspension
4 complaints
Exterior 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