2018 Toyota Prius Prime Engine Problems
- Complaints
- 1about this part
- Share
- 6%of 16 total for the year
- Median mileage
- 20miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2018 Toyota Prius Prime, 6% of the 16 complaints for this model year. Where a mileage was given, the median is 20 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.
“After the hybrid battery is discharged, and the gas engine kicks in, the vehicle loses power for approximately 5-10 seconds on the freeway. This has happened four times, at approximately 7 am, on december 1, 10, 14 and 15. On all occasions, the temperature was between 40-45 degrees fahrenheit, and at highway speeds. The cruise control was not in use. No warning lights came on. I called the Toyota dealer on december 1 and the service adviser said that since no warning lights came on, he could not determine the problem. I have a photo showing my contacting the Toyota dealer on december 1st. …”
NHTSA complaint #11384074, filed 2020-12, 20 milesRelated service bulletins
- 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.
- 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…
Engine: other model years
Other parts of the 2018 Toyota Prius Prime
3 complaintsAir bags
2 complaintsFuel system
2 complaintsTransmission and drivetrain
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsBack-over prevention (rear camera)
1 complaintsBrakes
1 complaintsElectrical system
1 complaintsExterior lighting
1 complaintsForward collision avoidance
1 complaintsLatches, locks and linkages
1 complaintsBody and structure
1 complaints
← All problems reported for the 2018 Toyota Prius Prime
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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