2015 Subaru Legacy fuel system 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 Sep 10, 2024 · Fuel system · NJ

2015 Subaru Legacy 2.5 engine. Fuel gauge is inaccurate. My daughter was on the highway when it ran out of fuel. Had car towed to a independent shop. They said that the fuel gauges is a problem for Subaru 's and that they had seen it before on other Subaru's.

Filed Apr 7, 2019 · Fuel system · 92,000 miles · NJ

Driving on interstate at 70mph & car acted as if it went into neutral. Rpm's were maintained at apx 4000. Low fuel light had just gone moments before indicating 80 miles left in tank. Car acted like it had no gas however RPM was working as I pulled on to shoulder of highway, luckily.once pulled over & braking engine stopped. Tried restarting & engine acted like it had no gas. Was in the process of waiting for aaa when I tried restarting it. It started after about a half hour from incident, although I did not try to start it after the 1st 5 minutes or so. When it restarted low fuel gauge was still on 70 miles to empty & I was able to make it to gas station & refueled to approximately 15 gallons, 3 less than 18 gallon tank so there was approx 3 gallons in tank when this occurred. Car is working fine now but will be taking to nc subaru to see if any codes were set, nothing was alerted on car warning lights other than low fuel warning light. I live in nj & I am concerned this could happen again driving back & I may not be so lucky to be able to pull over on more congested highways. Searched google & there are similar incidents such as subaru forrestor 2014 with same engine & issue where dealer could not find issue. Also subaru issued recall for 2017 imprezza (see 33k cars recalled) with stalling issues. Car has 93k miles & other than replacing 2 batteries, one a few weeks back , it has never had an issue with anything else. I was approximately 2 miles from getting off interstates when this occurred (eg 553 of 550 miles before 30 or so miles remaining on local roads). After refueling in nj only made two quick 5 minute stops along the way before this occurred.

Filed Jan 12, 2019 · Engine, Fuel system · 90,101 miles · NJ

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. Car was towed again to dealer for another diagnosis. Now the dealer believes the problem is a faulty cylinder (whatever that means).I have no trust in the reliability of this vehicle and am concerned about the safety of driving this vehicle with my family. It be should be noted that the car has been serviced exactly to the instructions per the mileage guidance. I have reported this concern to subaru of america corporate office. Case # 1-38872409282. Their response is unfair. I am now left with a car that is unsafe to drive and I should not be penalized financially.

Filed Nov 7, 2018 · Acceleration, Fuel system · 131,254 miles · NJ · crash

When parking in a parking spot at a school going to work, the car accelerated on it's own and went up an embankment and struck a tree causing extensive damage.

Filed Jan 8, 2017 · Electrical, Fuel system · OK

After sitting in driveway for 3 days, vehicle would barely start, strong exhaust smell, rat nest on top of engine and chewed hoses and wiring. Had towed into dealership. Advised of rodent damage. Replaced: engine wiring harness, transmission harness, transmission insulation, firewall insulation, hood insulation, fuel transfer pipes, and fuel lines at engine bay. Cleaned excess debris from engine bay and fuel bay (they had to drop the fuel tank). Reassembled. Final cost, including tow charge: $4557.42. Thankfully, insurance covered, minus our $1000.00 deductible. Green cars, not green in the wallet.

Filed Jun 30, 2016 · Acceleration, Fuel system · 13,500 miles · NJ

My 2015 subaru legacy has at different times (at idle in gear, coming up to a red light while moving, pulling into a parking lot or driving at 45 miles an hour) accereated on its own and would not slow down untill I put it in nuetral. I have to drive with my hand on the shifter at all times to put into nuetral. I bought the car new in 2015 and have 13900 miles on it now in july 2016.

Filed May 2, 2016 · Fuel system · IA

Gas cap lid does not open. We took the auto into dealership june 30, 2015 and gave them tsb-09-60-15. Mileage 5987. Temps in the 70's. They greased the gas lid contact. I indicated the tsb indicated something other than that. They took back into shop and ground down the lid release contact. Drove home. Tried to open gas cap lid and it would not open. We are concerned about driving auto any distance by oneself because it now takes two people to put gas into auto. One to pull up lever and one to pry open the lid on the outside. I am seeing numerous problems with several other subaru models besides the legacy. Such a simple manufacturing flaw should be able to be fixed. Love the auto but this is really really an annoying simple flaw. One person's comment on a tsb pertaining to this issue said if the lube and grinding does not fix the issue, the entire cap assembly needs to be replaced. I have not discussed this with the dealer yet. This issue happens in all temps. Currently 60 in garage and cap does not open. Mileage 10365.

Filed Dec 30, 2015 · Fuel system · 11,900 miles · WI

Fuel door would not open at gas station. Tried many times. Drove home. Put car in garage. Had to hit door with hand and pry open while releasing latch in car.

Filed Nov 30, 2015 · Acceleration, Airbags · 32,000 miles · MA · crash · 2 injuries

Slowly pulling into a parking spot, when the car accelerated (unintended acceleration) into a brick wall. My passenger suffered 3 broken ribs from the seat belt, and I suffered whiplash, bruising from seat belt, and bruised knees. The air bags did not deploy. Subaru corp decided to do nothing, and suggested that I trade in the car, which I have only owned for a few weeks. Do they then sell it to some unsuspecting person. Please help. Vin [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).