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2015 Subaru WRX problems: engine and transmission complaints and recalls

VERY HIGH COMPLAINT SIGNAL
71%
34 of 48 relevant owner complaints are about the engine, transmission or fuel system

71% of relevant owner complaints filed with NHTSA on the 2015 Subaru WRX are about the engine, transmission or fuel system. Well over half of everything owners reported is the drivetrain. That is a severe model-level pattern; every model year we track at this level has a documented failure behind it.

Worse than 92% of the 1,789 model years we track (2010–2023).

Excludes 7 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 62%).

NHTSA data checked October 3, 2026
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Does the 2015 Subaru WRX have engine problems?

Owner complaints say yes, heavily, as a model-year pattern. 34 of 48 relevant complaints filed with NHTSA about the 2015 Subaru WRX concern the engine, transmission or fuel system (71%), and the largest group is filed under engine (20). For comparison, the 2016 scores 44%. On a test drive, check for stalling, loss of power, rough idle, oil consumption or a check-engine light. This describes the model year, not any one car: a well-maintained or already-repaired example can be fine, and a clean model year can still have a bad car in it.

Drivetrain complaints
34
engine, transmission, fuel
Total complaints
55
this model year
Fires reported
1
owner-reported
Recall campaigns
3
2 crashes · 1 injuries

Complaints by component

ENGINE20 · 36%
POWER TRAIN18 · 33%
ELECTRICAL SYSTEM6 · 11%
STRUCTURE5 · 9%
UNKNOWN OR OTHER5 · 9%
FUEL/PROPULSION SYSTEM5 · 9%

The years either side

2010
too few complaints
2011
too few complaints
2012
too few complaints
2013
too few complaints
2014
too few complaints
2015
71%
34 of 55
2016
44%
14 of 34
2017
51%
23 of 53
2018
50%
19 of 44
2019
45%
13 of 30
2020
too few complaints
2021
too few complaints
2022
70%
16 of 25
2023
too few complaints

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

Cleaner alternatives

Other sports cars with no elevated signal in 2015

The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.

What owners reported

ENGINE03/05/2024
My engine starting making like a clunking sound I always have took my car for service at the dealership i own the 2015 subaru wrx premium i haven’t move the car after the noise due to scare I might mess something with the engine
POWER TRAIN,ENGINE12/20/2023
The contact owns a 2015 Subaru WRX. The contact stated that while driving at an undisclosed speed, he heard an abnormal sound coming from the rear of the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed failures with the drive belt, front drive axles, rear axle differentia…
ENGINE03/21/2023
The secondary o2 pump will burn out or continue running causing unsafe risk to short circuit a fire. Recall has already been previously documented in the -2014 models however Subaru uses the same design and part number. My car Secondary o2 Pump was replaced under warrenty at 55k miles now at 90knmiles have the same CEL…

Three of 34 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Recall campaigns on the 2015 Subaru WRX (3)

ELECTRICAL SYSTEM:WIRING
Subaru of America, Inc. (Subaru) is recalling certain 2015 WRX and WRX/STI vehicles, equipped with an optional factory-installed subwoofer in the trunk. Items in the tru…
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 manu…
EXTERIOR LIGHTING:BACK UP LIGHTS:SWITCH
Subaru of America, Inc. (Subaru) is recalling certain 2015-2021 WRX vehicles. The backup light switch may corrode and become inoperative, which can result in the backup …

This does not say whether a particular car has an open, unrepaired recall. That depends on the VIN.

Before you buy a 2015 Subaru WRX

Questions people ask about the 2015 Subaru WRX

Does the 2015 Subaru WRX have engine problems?

Owner complaints say yes, heavily, as a model-year pattern. 34 of 48 relevant complaints filed with NHTSA about the 2015 Subaru WRX concern the engine, transmission or fuel system (71%). Before buying one, have an independent mechanic check the engine and ask the seller whether it has been repaired or replaced.

Are there engine or transmission recalls on the 2015 Subaru WRX?

NHTSA lists 3 recall campaigns on the 2015 Subaru WRX. Whether a specific car still has one open depends on its VIN.

Which Subaru WRX years are better?

Among the Subaru WRX years we track, the 2016 (44%), the 2019 (45%) and the 2018 (50%) have a lower engine and transmission complaint share than the 2015 (71%). Manufacturers fix things mid-generation, so the year before or after can be a different car.

Should I buy a 2015 Subaru WRX?

That depends on the car in front of you, not just the model year. The 2015 Subaru WRX has an elevated engine complaint pattern, so treat it as a car that needs proof: service records showing engine work, a cold-start test drive, and an independent pre-purchase inspection focused on the engine. A well-kept or already-repaired example can be a fine car; an unknown one is a gamble.

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle. Combined across 2 body styles NHTSA files separately.