2021 Toyota Prius Fuel system Problems
- Complaints
- 2about this part
- Share
- 33%of 6 total for the year
- Median mileage
- 5,200miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the fuel system of the 2021 Toyota Prius, 33% of the 6 complaints for this model year. Where a mileage was given, the median is 5,200 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.
“Carbon monoxide seeps into the passenger car but diller cannot find it and did not have tools to detect co level in the car. I can't use this car because was poisoned many times and after a second check-up, the level of co becomes higher so I can't drive the car without poisoning. Please help me. I am worrying to sell my car because other driver will get injury. This is the new car only 7000 miles.”
NHTSA complaint #11416154, filed 2021-05, 5,200 miles“When i am going down it's charging when the charge reaches 6 from 8 the engine starts working and stop changing at that point and the power continues comes from engine only without the hybrid battery and there are no codes”
NHTSA complaint #11719876, filed 2026-02Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 6% |
| 2021 | 2 | 33% |
| 2020 | 1 | 7% |
| 2019 | 1 | 3% |
| 2018 | 2 | 5% |
| 2017 | 12 | 13% |
| 2016 | 6 | 4% |
| 2015 | 6 | 4% |
| 2014 | 5 | 2% |
| 2013 | 16 | 4% |
| 2012 | 11 | 3% |
| 2011 | 11 | 2% |
| 2010 | 71 | 3% |
| 2009 | 24 | 5% |
| 2008 | 55 | 4% |
| 2007 | 28 | 1% |
| 2006 | 20 | 1% |
| 2005 | 28 | 3% |
| 2004 | 13 | 2% |
| 2003 | 4 | 4% |
| 2002 | 5 | 3% |
| 2001 | 12 | 7% |
Other parts of the 2021 Toyota Prius
2 complaintsBrakes
1 complaintsElectrical system
1 complaintsForward collision avoidance
1 complaintsLane departure
1 complaintsOther or unknown
1 complaintsVehicle speed control
1 complaintsWheels
1 complaints
← All problems reported for the 2021 Toyota Prius
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