MileageCurve What breaks, and at what mileage

Subaru Forester 2014–2018

4th generation (SJ) · SJ · 3,555 complaints, 2,105 with mileage

Owners filed 3,555 complaints with NHTSA about the 2014–2018 Subaru Forester, and 2,105 of them record the mileage at which the failure happened. That is enough to show not just what fails, but when.

Failures are spread across the mileage range, with the middle half between 14,000 and 59,000 miles. The median is 34,500 miles.

The most-reported areas are the airbag system (17.0% of complaints, typically around 36,000 miles), the electrical system (11.0% of complaints, typically around 38,511 miles), problems owners could not categorise (10.2% of complaints, typically around 30,000 miles).

6 recall campaigns cover this generation.

When failures happen

0–5k: 243 complaints (11.5%)0–5k5–10k: 152 complaints (7.2%)10–20k: 284 complaints (13.5%)10–20k20–30k: 250 complaints (11.9%)30–40k: 237 complaints (11.3%)30–40k40–50k: 246 complaints (11.7%)50–60k: 173 complaints (8.2%)50–60k60–70k: 126 complaints (6.0%)70–80k: 116 complaints (5.5%)70–80k80–90k: 80 complaints (3.8%)90–100k: 55 complaints (2.6%)90–100k100–120k: 70 complaints (3.3%)120–140k: 42 complaints (2.0%)120–140k140–160k: 16 complaints (0.8%)160–200k: 13 complaints (0.6%)160–200k200k+: 2 complaints (0.1%)2840

10% of failures occur by 3,370 miles · a quarter by 14,000 · median 34,500 · three quarters by 59,000 · 90% by 87,000. Based on 2,105 complaints that record mileage.

What fails, and when

SystemComplaintsShareTypical mileageMiddle half
Air Bags60617.0%36,00015,130–63,000
Electrical System39211.0%38,51116,320–55,000
Unknown Or Other36410.2%30,00011,000–50,100
Engine3379.5%38,00016,266–67,574
Visibility/Wiper2908.2%24,60012,000–40,000
Power Train2527.1%43,00011,350–73,000
Vehicle Speed Control2136.0%23,91210,000–46,050
Suspension2005.6%52,56039,000–67,000
Fuel/Propulsion System1243.5%38,50014,500–61,000
Service Brakes1193.3%34,00018,000–51,356

By model year

YearComplaintsWith mileage
2014576414
2015897604
2016615319
2017792441
2018675327

Which systems, and when

Complaints about this generation are not spread evenly across the vehicle, and the systems that generate the most of them do not all fail at the same point in a car's life. The median failure across all systems here is 34,500 miles; the figures below show which parts of the car run ahead of that and which run behind.

The airbag system accounts for 17.0% of complaints (606 reports, 285 of them with a mileage figure), with a median of 36,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 15,130 and 63,000 miles.

The electrical system accounts for 11.0% of complaints (392 reports, 186 of them with a mileage figure), with a median of 38,511 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 16,320 and 55,000 miles.

Problems owners could not categorise accounts for 10.2% of complaints (364 reports, 194 of them with a mileage figure), with a median of 30,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 11,000 and 50,100 miles.

The engine accounts for 9.5% of complaints (337 reports, 223 of them with a mileage figure), with a median of 38,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 16,266 and 67,574 miles.

Visibility/wiper accounts for 8.2% of complaints (290 reports, 213 of them with a mileage figure), with a median of 24,600 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 12,000 and 40,000 miles.

The transmission and driveline accounts for 7.1% of complaints (252 reports, 169 of them with a mileage figure), with a median of 43,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 11,350 and 73,000 miles.

Differences between model years

Within this generation, complaint volume is not constant across model years. The 2015 model year drew the most — 897 complaints — while 2014 drew the fewest at 576. The median year sits at 675.

Recalls and what they cover

NHTSA records 6 recall campaigns covering vehicles in this generation. A recall means the manufacturer or the regulator concluded there was a safety defect or a standard was not met, and that a free remedy is owed to owners — including second and later owners.

The campaigns cluster around equipment (2), the fuel system (1), the airbag system (1). Repeated recalls against the same area of the car generally mean the first remedy did not fully resolve the underlying problem.

Recall status is specific to the individual vehicle, not the model. Checking a VIN against NHTSA's lookup is free and takes under a minute, and it is the only way to know whether a particular car has had the work done.

Reported severity

Of the 3,555 complaints filed against this generation, 369 reported a crash; 26 reported a fire; 191 reported an injury. Crash-involved reports represent 10.4% of the total.

These are owner-reported outcomes, not verified investigations, and they are not adjusted for how many of these vehicles are on the road. They are included because the distinction between a fault that strands a car and a fault that causes a collision is the one that matters most, and it is not visible in a complaint count alone.

What this means if you are buying one

For a buyer, failures on this generation are spread rather than concentrated: the middle half falls between 14,000 and 59,000 miles, with a median of 34,500. There is no single mileage threshold to watch, which means condition and maintenance records are more informative than the odometer.

On inspection, the airbag system and the electrical system are where this generation's reports concentrate, so those are the areas worth a specific look. The airbag system in particular shows a median failure mileage of 36,000, which gives a concrete number to compare against the odometer of any car you are considering.

None of this is a substitute for a pre-purchase inspection on the individual car. Aggregate patterns describe a population; the example in front of you has its own history.

Documented problems

Engine (FB25 oil consumption) 2014-2015 (settlement window); complaints continue 2016-2018

Continued excessive oil consumption from FB25 piston ring design; covered by the same class action settlement population and Subaru extended coverage to 8 years / 100,000 miles for affected vehicles.

Transmission (Lineartronic CVT) 2014-2018

CVT chain, valve body and torque converter complaints - shudder, hesitation and in some cases loss of drive. Subaru extended CVT warranty coverage to 10 years / 100,000 miles on affected CVT-equipped vehicles of this era.

Glass 2015-2018

Windshield cracking from minor or no apparent impact, the subject of owner litigation across several Subaru models of this era.

Airbags (Takata inflator) 2014-2018

Takata inflator recall population continues into this generation.

Transmission (generation context) 2014-2018

The Lineartronic CVT became the dominant transmission for the first time in the US Forester with this generation, replacing the 4-speed automatic. CVT failure modes do not apply to 2013-and-earlier US Foresters.

Recalls (6)

CampaignDateComponent
21V5870002021-09-24Fuel System, Gasoline:Delivery:Fuel Pump
19V7010002020-02-11Air Bags:Sensor:Occupant Classification
19V1490002019-04-15Exterior Lighting:Brake Lights:Switch
18V4550002018-07-26Equipment:Other:Labels
16V1620002016-04-15Engine And Engine Cooling:Engine:Gasoline:Turbo/Supercharger
13V1590002013-06-05Equipment

What owners reported

2014 · 6 miles · Suspension
WHEN I PURCHASED MY NEW VEHICLE LAST JULY, I NOTICED DRIVING IT HOME THERE WAS A "CLUNK" SOUND COMING FROM THE FRONT END WHEN I WENT OVER RAILROAD TRACKS OR ANY BUMP. I TOOK IT BACK TO SUBARU AND THEY FOUND A BENT AND TWISTED PART ON THE RIGHT FRONT SUSPENSION. I NOW HAVE 19K ON MY CAR A YEAR LATER. I NOTICED MY RIGHT REAR TIRE BALD ONLY ON THE OUT SIDE. ALL OTHER TIRE TREAD IS PERFECT. SO I …
2014 · 20 miles · Service Brakes
ON SUMMER 2015, I HAD A PROBLEM WITH MY 2014 SUBARU FORESTER XT. I'M A SUBARU FAN. MY CAR IS EQUIPPED WITH EYESIGHT SYSTEM, WHICH WILL APPLY BRAKES FOR ME IN CASE I DON'T OR WILL INCREASE BRAKE FORCE TO AVOID A COLLISION IN CASE I DIDN'T. THIS IS ONE OF THE STRONGEST SELLING POINTS OF THE EYESIGHT SYSTEM: FRONTAL COLLISION AVOIDANCE. THAT DAY ON A BUSY HIGHWAY, DURING RUSH HOUR, I WAS NOTICING …
2014 · 25 miles · Vehicle Speed Control
AFTER I PURCHASED MY VEHICLE, I NOTICED A HESITATION BETWEEN 20 - 40 MPH. THIS IS THE FIRST YEAR FOR THE FORESTER'S TO HAVE A CVT ENGINE SO I THOUGHT IT NEEDED BROKEN IN. I ALSO WENT THROUGH 3 CYCLES OF FILLING UP MY GAS TANK FROM 3 DIFFERENT GAS STATIONS AND THE HESITATION CONTINUED. THE FIRST TIME I BROUGHT IT IN THE TECHNICIAN SAID HE OVERFILLED THE OIL A SLIGHT BIT, REMOVED IT, AND I SHOULD…
2014 · 25 miles · Engine
AFTER I PURCHASED MY VEHICLE, I NOTICED A HESITATION BETWEEN 20 - 40 MPH. THIS IS THE FIRST YEAR FOR THE FORESTER'S TO HAVE A CVT ENGINE SO I THOUGHT IT NEEDED BROKEN IN. I ALSO WENT THROUGH 3 CYCLES OF FILLING UP MY GAS TANK FROM 3 DIFFERENT GAS STATIONS AND THE HESITATION CONTINUED. THE FIRST TIME I BROUGHT IT IN THE TECHNICIAN SAID HE OVERFILLED THE OIL A SLIGHT BIT, REMOVED IT, AND I SHOULD…

Other generations