2020 Toyota Prius Engine Problems
- Complaints
- 1about this part
- Share
- 7%of 14 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2020 Toyota Prius, 7% of the 14 complaints for this model year. 1 of these say a crash was involved, according to the filers.
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.
“On May 16, 2023 I was slowly driving out of a market parking lot when the car suddenly accelerated, full throttle, and speeded across the street (Colusa Avenue, Berkeley, CA), crashing head on into a fence. Immediately after the crash, the dashboard displayed the following: Check Engine (!) A malfunction in the electronic control of the engine, throttle, or automatic transmission has been detected. Contact your Toyota dealer to have your vehicle inspected. The car was towed and is now at a body shop selected by my insurance company, AAA. …”
NHTSA complaint #11524726, filed 2023-05Related service bulletins
- 11037202Aug 20, 2026OBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26.
- 11037201Aug 20, 2026This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries.
- 11020664Jun 17, 2025Some ECUs can set a DTC that is common with other ECUs. This can lead to accidental use of the wrong repair manual when diagnosing these type of DTCs.
- 11020658Jun 13, 2025Some ECUs can set a DTC that is common with other ECUs. This can lead to accidental use of the wrong repair manual when diagnosing these type of DTCs.
- 11012753Dec 10, 2024This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries. This bulletin should be used in conjunction…
- 11003636Apr 17, 2024Some 2020 – 2024 Corolla HV, 2017 – 2022 Prius Prime, and 2016 – 2022 Prius vehicles equipped with a 2ZR-FXE engine may exhibit a MIL ON condition with Diagnostic Trouble Code…
- 11003581Apr 17, 2024Some 2020 – 2024 Corolla HV, 2017 – 2022 Prius Prime, and 2016 – 2022 Prius vehicles equipped with a 2ZR-FXE engine may exhibit a MIL ON condition with Diagnostic Trouble Code…
- 11003602Apr 1, 2024Some 2020 – 2024 Corolla HV, 2017 – 2022 Prius Prime, and 2016 – 2022 Prius vehicles equipped with a 2ZR-FXE engine may exhibit a MIL ON condition with Diagnostic Trouble Code…
- 11003547Apr 1, 2024Some 2020 – 2024 Corolla HV, 2017 – 2022 Prius Prime, and 2016 – 2022 Prius vehicles equipped with a 2ZR-FXE engine may exhibit a MIL ON condition with Diagnostic Trouble Code…
- 10164330Jul 1, 2019TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2022 | 2 | 8% |
| 2021 | 2 | 33% |
| 2020 | 1 | 7% |
| 2019 | 6 | 20% |
| 2018 | 3 | 8% |
| 2017 | 12 | 13% |
| 2016 | 17 | 11% |
| 2015 | 8 | 5% |
| 2014 | 17 | 8% |
| 2013 | 37 | 9% |
| 2012 | 31 | 7% |
| 2011 | 47 | 9% |
| 2010 | 140 | 5% |
| 2009 | 19 | 4% |
| 2008 | 49 | 3% |
| 2007 | 37 | 2% |
| 2006 | 25 | 2% |
| 2005 | 15 | 1% |
| 2004 | 9 | 1% |
| 2001 | 2 | 1% |
Other parts of the 2020 Toyota Prius
5 complaintsBrakes
4 complaintsElectrical system
2 complaintsTires
2 complaintsAir bags
1 complaintsBack-over prevention (rear camera)
1 complaintsElectronic stability control
1 complaintsForward collision avoidance
1 complaintsFuel system
1 complaintsBody and structure
1 complaintsTransmission and drivetrain
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2020 Toyota Prius
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