2020 Mazda MAZDA3 Fuel system Problems
- Complaints
- 2about this part
- Share
- 6%of 32 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the fuel system of the 2020 Mazda MAZDA3, 6% of the 32 complaints for this model year.
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.
“Low pressure fuel pump failure with 75,575 miles on odometer. Fuel pump completely seized. Car was parked at a retail location and would not start. Upon troubleshooting, mechanic was able to determine the low pressure pump was not delivering fuel. Pump was replaced. Faulty fuel pumps could lead to hazardous conditions as they are mounted within the fuel tank. I feel this is too early in the vehicles life for this component to have completely failed.”
NHTSA complaint #11748076, filed 2026-07Related service bulletins
- 11033445May 2, 2026This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-011/25 10/16/25 and 02/27/25 DESCRIPTION Some customers will report that their fuel…
- 11011341Nov 18, 2024CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a…
- 11011338Nov 18, 2024CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a…
- 11011336Nov 18, 2024CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a…
- 11011331Nov 12, 2024CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a…
- 11011345Nov 8, 2024CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a…
- 11011326Nov 8, 2024CUSTOMER SERVICE PROGRAM CSP12 - DENSO LOW-PRESSURE FUEL PUMP CUSTOMER SERVICE PROGRAM WARRANTY EXTENSION: Attention ALL Mazda Dealers: This is a Warranty Extension and not a…
- 11007024Aug 15, 2024Some customers will report that their fuel door was stuck closed and would not open to refuel the vehicle. Follow the repair steps below unless the conditions outlined in TSB…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 2 | 4% |
| 2020 | 2 | 6% |
| 2019 | 8 | 11% |
| 2018 | 11 | 10% |
| 2017 | 3 | 4% |
| 2016 | 6 | 6% |
| 2015 | 14 | 11% |
| 2014 | 24 | 17% |
| 2013 | 2 | 2% |
| 2012 | 22 | 10% |
| 2011 | 3 | 2% |
| 2010 | 7 | 1% |
| 2009 | 5 | 4% |
| 2008 | 9 | 3% |
| 2007 | 9 | 4% |
| 2006 | 4 | 2% |
| 2005 | 6 | 6% |
| 2004 | 7 | 5% |
Other parts of the 2020 Mazda MAZDA3
15 complaintsBrakes
3 complaintsElectrical system
3 complaintsOther or unknown
3 complaintsSteering
3 complaintsLane departure
2 complaintsSuspension
2 complaintsEngine
1 complaintsEquipment
1 complaintsExterior lighting
1 complaintsSeat belts
1 complaintsBody and structure
1 complaints
← All problems reported for the 2020 Mazda MAZDA3
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