2020 Mazda MAZDA3 problems & reliability
32 owner complaints filed with NHTSA for the 2020 Mazda MAZDA3, alongside 2 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
Federal crash records (FARS 2020–2023): 2020 Mazda MAZDA3 vehicles were involved in 11 fatal crashes with 6 occupant deaths. Involvement counts are not adjusted for how many are on the road and do not imply fault or a vehicle defect.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Forward Collision Avoidance → | 15 | 47% |
| Electrical System | 3 | 9% |
| Steering | 3 | 9% |
| Unknown OR Other | 3 | 9% |
| Fuel/propulsion System | 2 | 6% |
| Lane Departure | 2 | 6% |
| Service Brakes | 2 | 6% |
| Suspension | 2 | 6% |
| Engine | 1 | 3% |
| Equipment | 1 | 3% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Complaints by incident year
What owners report
“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…”
Fuel/propulsion System · filed Jul 2, 2026
“size 21545ZR18 93Y. replaced these oem tires with these from costco on feb 27 2025. in dec 5 2025 the tire developed a large bubble. miles bought was 27790. current miles 31212. per tire center steal belting was broken no signs of road hazard or other damage. the belt broke and rubber was stressed with " maybe a 1000…”
Tires · filed Mar 13, 2026
“My Mazda3 began producing a chirp when shifting from 3rd to 4th gear (automatic transmission). The dealer stated that the car needed a new torque converter. At the time the car only 37,000 miles on it, quite low mileage for a torque converter to fail. Mazda has previously admitted to producing cars with faulty torque…”
Power Train · filed Feb 19, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Technical service bulletins
717 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2020 Mazda MAZDA3. The 10 most recent:
DESCRIPTION Some customers may complain that the electric power steering warning light illuminates after engine start and DTC U2011:1C is stored. Zinc-plated whisker may form inside the EPS motor and trigger the DTC…
06-001-26 · Service Bulletin/Repair Instructions · issued Jul 8, 2026
This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-063/24 09/06/24 DESCRIPTION The Blind Spot Monitoring (BSM) system can malfunction with the following symptoms if the rear…
SA-043-26 · Service Bulletin/Repair Instructions · issued Jul 2, 2026
This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 09-016/26 05/06/26 DESCRIPTION Some customers may complain that the seat warmer does not operate when turning the…
09-016-26a · Service Bulletin/Repair Instructions · issued Jul 2, 2026
This Service Alert supersedes the previously issued SAs listed below. The changes are noted in Red text. SA-017/25 12/16/25, 09/08/25, 07/14/25, 05/15/25 and 03/21/25 DESCRIPTION Mazda Connect Frequently Asked Questions…
SA-042-26 · Service Bulletin/Repair Instructions · issued Jul 1, 2026
This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s)…
SA-041-26 · Service Bulletin/Repair Instructions · issued Jun 19, 2026
This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 09-012/21 12/13/21, 06/10/21 and 04/27/21 DESCRIPTION Some customers may experience all of following symptoms: The…
09-019-26 · Service Bulletin/Repair Instructions · issued Jun 18, 2026
This SA supersedes the previously issued bulletin(s) listed below. The changes are noted below in Red. SA-027/26 04/16/26 DESCRIPTION The Mazda DCA-8000 is required for all warranty battery testing. If the Mazda…
SA-027-26a · Service Bulletin/Repair Instructions · issued Jun 17, 2026
DESCRIPTION Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s)…
SA-0-38/26 · Service Bulletin/Repair Instructions · issued Jun 16, 2026
This Service Alert supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-009/25 08/22/25 and 02/18/25 DESCRIPTION Some customers may experience a Connected Vehicle failure. The MyMazda…
SA-040-26 · Service Bulletin/Repair Instructions · issued Jun 16, 2026
This Service Alert supersedes the previously issued SA listed below. The changes are noted in Red text. SA-012/25 10/06/25, 08/21/25, 05/15/25 and 02/27/25 DESCRIPTION Customers having MAZDA CONNECT concerns should have…
SA-039-26 · Service Bulletin/Repair Instructions · issued Jun 16, 2026
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2020 Mazda MAZDA3 has 2 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2020 Mazda MAZDA3?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.