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Fuel systemPart report

2015 Subaru WRX Fuel system Problems

Complaints
5about this part
Share
10%of 52 total for the year
Median mileage
10,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the fuel system of the 2015 Subaru WRX, 10% of the 52 complaints for this model year. Where a mileage was given, the median is 10,500 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I do not drive my vehicle very often as I drive my work truck six days a week. I got into my vehicle before getting on the freeway and realized I needed gas before I left. I got to the gas station with my gas light on and parked. After paying for gas I realized my gas cap access door was not open, as I thought I opened it. I tried multiple times opening the door with the release lever on the floor by the drivers seat. After twenty minutes of confusion I called the dealership and they told me to bring it over right away ( good thing they are down the street from me). …”

NHTSA complaint #10679866, filed 2015-01, 1,200 miles

“Vehicle is burning oil, oil came out through where the dip-stick is placed. Found oil on the exhaust tips. Mass air flow sensor is malfunctioning. Requires new coils and spark plugs even though I have already replaced them. Required a new battery, however, replacing the battery did not keep the vehicle from turning off by itself. O2 sensor, bank 1 sensor 2, is also malfunctioning.”

NHTSA complaint #11385687, filed 2020-12, 115,525 miles

“Driving on the highway at ~70 MPH and suddenly lost all throttle response, the car would not accelerate only loose speed. Engine started to shutter to low rpms, and because of this drastically lost speed and nearly got into an accident with oncoming traffic while moving to the side of the highway to pull over. After eventually pulling over, engine continued to shutter to low rpms and could not hold an idle - would just stall after repeated attempts to start it up. …”

NHTSA complaint #11290682, filed 2019-12, 138,000 miles

“Automatic transmission was in manual mode. Left stop sign and used the upshift paddle shifter to change gears. Car would not upshift. Has occurred 4 times in this 6200 miles since purchased.”

NHTSA complaint #10633538, filed 2014-09, 6,200 miles

“2015 WRX 2.0l manual transmission while driving the car in everyday situations I have had (3) distinct problems associated with the engine/throttle/idle. 1) ghost blip: when coming to a stop, around 5-15 MPH, put it in neutral coast to a stop idle will inexplicably spike from ~700rpm (idle) --> ~1.2-1.5k RPM (for a second or two...like a ghost blipped the throttle). No pressure applied to accelerator. 2) rough idle: while sitting at a stop, in neutral, ~700rpm (idle) --> will dip to ~650-600rpm for a fraction of second & reoccur every 2-4 seconds. …”

NHTSA complaint #10747992, filed 2015-08, 10,500 miles

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
202214%
202118%
202016%
2019310%
2018716%
201736%
201626%
2015510%
200912%
200823%
2006429%
20051263%
20043583%
20032033%
200229569%

Other parts of the 2015 Subaru WRX

Engine
18 complaintsTransmission and drivetrain
18 complaintsElectrical system
6 complaintsExterior lighting
5 complaintsOther or unknown
5 complaintsBody and structure
4 complaintsAir bags
3 complaintsSteering
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsSeat belts
1 complaintsTires
1 complaintsVehicle speed control
1 complaints

← All problems reported for the 2015 Subaru WRX

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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