2021 Subaru Impreza Engine Problems
- Complaints
- 1about this part
- Share
- 7%of 14 total for the year
- Median mileage
- 7,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2021 Subaru Impreza, 7% of the 14 complaints for this model year. Where a mileage was given, the median is 7,000 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.
“The car accelerated without any input from driver. Driver did not apply pressure to gas pedal however the car still moves both forward an backwards. Car accelerated enough to drive over a speed bump without stopping, roughly 5 MPH. Three videos were taken to document the issue. The event happen in a parking lot, the car was stopped at first however as soon as the driver removed pressure from brakes pafel, the car accelerated without input. The car didnt slow down even when turning, in fact the car appears to have speed up. Unable to up load video”
NHTSA complaint #11406308, filed 2021-04, 7,000 milesRelated service bulletins
- 11034269Jun 30, 2026This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components…
- 11034264Jun 26, 2026This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components…
- 11033065May 13, 2026This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components…
- 11033051May 1, 2026This bulletin announces the diagnostic procedures to be used when DTCs B1571(REFERENCE CODE INCOMPATIBILITY IMMOBILIZER CM TO ECM) and B1572(IMM CIRCUIT EXCEPT ANTENNA CIRCUIT)…
- 11027982Jan 12, 2026This Bulletin provides the diagnostic procedure for the STARLINK® Remote Engine Start (RES).
- 11027978Jan 8, 2026This bulletin announces the design change made to the high-pressure fuel pump developed to prevent DTC P0087 (Fuel Rail/System Pressure – Too Low Bank 1).
- 11027090Dec 12, 2025This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components…
- 11027083Dec 8, 2025This Service Information Bulletin provides the Service Manual Correction to the diagnostic procedure for DTC B2A16 (Immobilizer Key Collation Diagnosis).
- 11027081Dec 8, 2025This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1) and P2097 (POST CATALYST FUEL TRIM SYSTEM TOO RICH…
- 11025790Nov 20, 2025This bulletin announces the diagnostic procedures to be used when DTCs P2096 (POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1) and P2097 (POST CATALYST FUEL TRIM SYSTEM TOO RICH…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 20% |
| 2024 | 2 | 6% |
| 2022 | 1 | 7% |
| 2021 | 1 | 7% |
| 2020 | 3 | 4% |
| 2019 | 8 | 4% |
| 2018 | 11 | 7% |
| 2017 | 14 | 11% |
| 2016 | 3 | 4% |
| 2015 | 10 | 13% |
| 2014 | 20 | 19% |
| 2013 | 75 | 30% |
| 2012 | 55 | 23% |
| 2011 | 3 | 5% |
| 2010 | 7 | 15% |
| 2009 | 13 | 13% |
| 2008 | 13 | 7% |
| 2007 | 8 | 12% |
| 2006 | 5 | 9% |
| 2005 | 5 | 7% |
| 2003 | 1 | 2% |
| 2002 | 3 | 1% |
Other parts of the 2021 Subaru Impreza
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsOther or unknown
2 complaintsSteering
2 complaintsTires
2 complaintsVehicle speed control
2 complaintsAir bags
1 complaintsBrakes
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2021 Subaru Impreza
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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