2003 Toyota Prius Fuel system Problems
- Complaints
- 4about this part
- Share
- 4%of 99 total for the year
- Median mileage
- 83,472miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the fuel system of the 2003 Toyota Prius, 4% of the 99 complaints for this model year. Where a mileage was given, the median is 83,472 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.
“There is no thermostat gauge in a 2003 Toyota Prius , the car over heats and you don't know until your in the middle of traffic nearly getting killed. Toyota was contacted, but say not a recall and they don't honestly car cause car is old . That's not right , anything you still use from cars or even medicine have later come back to hurt or killed people. There is no hot to cold gauge in the car , 2003 only . I have investigated and see people publish about this but let it slip by . …”
NHTSA complaint #11011713, filed 2017-07, 123,200 miles“Dt:while driving at 25-30 MPH vehicle lost power and stalled due to electronic throttle module failure. Updated 12/6/2005 - the dealer replaced the fuel relay.”
NHTSA complaint #10140068, filed 2005-10, 43,745 miles“Since the first month after buying the car, gas mileage has been no more than 30 miles per gallon, which is at least 20 miles less than advertised... On more than one occasion the car has jerked forward in traffic almost causing accidents and when driving more than 60 MPH the car loses control, also the car has shut off numerous times while driving 60 MPH almost causing more accidents.”
NHTSA complaint #10046756, filed 2003-11Fuel 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 2003 Toyota Prius
39 complaintsBrakes
16 complaintsElectrical system
13 complaintsEngine cooling
11 complaintsTires
11 complaintsTransmission and drivetrain
5 complaintsVehicle speed control
5 complaintsEquipment
4 complaintsOther or unknown
3 complaintsElectronic stability control
2 complaintsSuspension
2 complaintsAir bags
1 complaints
← All problems reported for the 2003 Toyota Prius
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