fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
10,100 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2015 Subaru WRX engine problems

engine problem

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2015 Subaru WRX Owner Comments

problem #2

Apr 102016


  • 9,700 miles


In a 2015 Subaru WRX with a 6-speed manual transmission purchased 03/2015 and delivered to purchase dealer 04/2015. Reported to Subaru dealer 02/19/2016 a rough idle with engine rpms recorded between 400 and 1K. Rough idle tripped a check engine light after fueling and cruise control light began flashing. Diagnostic code P0420 reported a fault in catalytic converter. Software update to computer performed resolved issue temporarily. 04/10/2016 at 9.7K miles rough idle issue returned rpms of 400 to 1K again after fueling. In neutral 30-60 seconds after starting vehicle stalled at fuel station. Upon re-starting vehicle check engine, flashing cruise control, ABS, hill-start assist, and traction control faults tripped. Vehicle behavior similar to NHTSA recall 16V-162 where NHTSA noted 'due to the use of incorrect material for a portion of the engine turbocharger air intact duct crack, the engine may develop a rough idle, reduced power, and possibly stall'. complainant believes recall may need to be expanded to include a wider range of vins before listed production dates in recall order.

- Pueblo, CO, USA

problem #1

Jul 012015


  • 10,500 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. Feels like someone lightly shaking your seat from left to right. 3) near stall: While sitting at a stop, in neutral, ~700rpm (idle) --> will dip the rpms low enough that the whole car noticeably shakes...similar to the shake you would experience if the engine were actually about to stall. The rpms will fumble around a bit and then hiccup back to normal idle after 4-5 seconds. All three items have been brought to the attention of the local Subaru dealer on (2) occasions w/ the reply unable to diagnose problem and/or it is normal.

- Laguna Beach, CA, USA

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