Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2015 Subaru Forester owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owned a 2015 Subaru Forester. The contact stated while driving 70-75 MPH, the vehicle started losing motive power. The engine revved and made an abnormally loud sound. Several unknown warning lights were illuminated. The contact engaged the hazard lights and veered to the side of the road. The vehicle then lost motive power and stalled. The contact was able to restart the vehicle after several attempts. The contact was able to continue driving. The vehicle was taken to the dealer, where the failure could not be duplicated; however, the dealer advised that the failure could be caused by condensation and moisture in the fuel lines. The contact stated that the failure recurred while driving. The vehicle failed to start and was towed to a second dealer West Herr Subaru (3559 Southwestern Blvd, Orchard Park, NY 14127). …
The contact owned a 2015 Subaru Forester. The contact stated that while driving at an undisclosed speed, the contact heard a cracking sound coming from the engine compartment. The vehicle lost motive power. The vehicle was driven to the shoulder of the roadway. The low oil pressure warning light illuminated, and the engine seized. The vehicle was towed to the dealer where it was diagnosed with a failed engine and that the engine needed to be replaced. The vehicle was not repaired. The vehicle was sold to the dealer. The manufacturer was made aware of the failure and advised the contact that the repair would not be covered under warranty. The failure mileage was approximately 59,000.
The contact owns a 2015 Subaru Forester. The contact stated that while the vehicle was parked, the vehicle was shifted into drive however, the steering wheel failed to turn as intended. An unknown warning light was illuminated. The vehicle was steered to the side of the road. The vehicle was towed to a dealer where it was diagnosed that the ECU needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 8,739.
The 2015 Subaru Forester accelerated unexpectedly while slowly turning into a a Walgreens parking lot. The acceleration could not be stopped by stepping on the brake, and the car crashed into the brick building. The vehicle is at Phil's Auto Body Shop in Rosemount, MN. The estimate on the car is complete, and waiting on State Farm insurance to approve. The police were at the scene of the accident. Walgreens has video of the accident from their security cameras.
I was parking at the dentist office in their parking lot going slow, turned into a parking space and thought i was slowly braking but my car lunged forward and hit a tree. I would normally be minimally braking, so I'm not sure what happened but it was sudden. I could have hit the gas pedal but i would have pressed it a lot I think for the sudden lunge to happen.
At about 101,000 miles I took the car in to the dealership where I bought it for another issue. When the tech got it up on his lift he came in and notified the service manager that there was bubbles on my brake line. The service manager came to us and she said "I really shouldn't let you drive out of here with those bubbles because I would be an unsafe condition", the implication was that if they burst I would have no brakes. The road salt on the roads in the winter in Vermont was indicated as the cause of the problem. They installed all new brake lines behind the cabin. I had asked them to save a section of the brake lines showing the bubbles and that DID NOT happen. I do much of my own maintenance and to have steel brake lines bubble it's hard to understand. …
I have done research and noticed that the engine is a problem with the 2015 Subaru Forester. The engine consumes oil at a very high rate. I get my oil changed (fully synthetic) every 5,000 miles. However, at about 3,000 miles of use, my oil light comes on at the dash. I then have to take my vehicle to the dealership to get the oil "topped off" to hold me over until my oil change date. This engine burns off oil at a very high rate. Also, the vehicle has consistently smelled like a burning or burnt oil type smell in the cabin of the car after driving it. After I park the vehicle in the garage and get out, you can smell the "burning/hot" smell of the engine or oil. This has been an issue for over 2 years and I have notified the dealership where I bought the vehicle. They said there is nothing that they can do, because there is no recall and that these cars just burn oil fast. …
Cam carrier/front cover seal failed on our 2015 Forester with the 6 speed MT. This oil leak has ruined the O2 sensor, the drivers side VVT solenoid and according to the dealer has caused oil to run down the wiring harness which will cause further sensor failures if not corrected. All told the dealer wants over $3700 to fix the issues and will not warranty any parts unless the oil leak is fixed. The car currently has ~105k miles on it, out of warranty, but we had mentioned oil loss issues to our mechanic and local Subaru dealer when the car was serviced for the 2019 airbag sensor recall. The car was 4 yrs old, had ~65k miles and was "consuming" about 1 qt per 2500 miles at which time the low oil light would come on, but not the check engine. The concern was dismissed by the dealer as minor and likely oil consumption common on this engine. …
After driving for about 15 minutes, I was stopped at a stop sign at the intersection of 2 hilly and curvy roads with poor visibility. When I stepped on the accelerator to go, all of the lights on my dash lit up and the car died. I tried several times to restart the car and it wouldn't start. We managed to get the car pushed into someone's yard and had it towed to my mechanic. When my mechanic tried to start it the next day, it started right up. In looking at the codes, it showed a code for an air flow meter sensor, so they replaced that. I got the car back 2 days later. Drove for about 20 minutes, parked my car in my driveway, and when I went to restart it about 30 minutes later the same thing happened. The lights on the dash lit up and the car died. After waiting about another 30 minutes I was able to start the car, and moved it out of the way so it could be towed. …
On 3 different occasions the car randomly accelerated at a high speed without stepping on the gas pedal. The first time was in a parking lot. The second time was on a busy road while traveling at 35 mph. The car accelerated to about 60 mph, fortunately once applying the brakes the vehicle slowed down to gain control. The third time it happened was recently on [redacted] while slowly backing down [redacted]. The car accelerated backwards at a very high speed narrowly missing a fence in the neighbors yard. These incidents have happened with large time frame gaps in between the occurrences. After the third incident I took the car to a dealer Planet Subaru in Hanover MA. After keeping the car for a few days, the dealer called and said that they could not find anything wrong with the car and there was nothing that they could do for me. …
Related recalls
Engine and engine cooling › Engine › Gasoline › Turbo/supercharger
Subaru of America, Inc. (Subaru) is recalling certain model year 2015-2016 WRX vehicles manufactured April 10, 2015, to October 21, 2015, and Forester 2.0XT vehicles manufactured April 10, 2015, to October 20, 2015. The turbocharger air intake duct may crack and possibly result in an engine stall.
Remedy: Subaru will notify owners, and dealers will inspect the turbocharger air intake duct, and replace it as necessary, free of charge, depending on the lot number found on the duct. The recall began April 2016.
Engine complaints in other Forester years
Frequently asked questions
How common are engine problems on the 2015 Subaru Forester?
NHTSA has 135 complaints about the engine & cooling of the 2015 Subaru Forester, 22% of the model year's 615 complaints. The component named most often is engine › engine control module (ecu/ecm) (1 mentions).
Is there a recall for 2015 Subaru Forester engine problems?
Yes — NHTSA recall 16V-162 (turbo/supercharger, Mar 21, 2016). Recall repairs are free at authorized dealers.
At what mileage do 2015 Subaru Forester engine problems start?
Half of the complaints with a recorded mileage happened before about 44,000 miles, and 33% before 25,000 miles.
Is it dangerous?
Owners linked 10 crashes, 3 fires and 7 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.