repaired · 2023 Q1
Tires: valve
Risk. A sudden air leak from the tire air valve may cause a loss of vehicle control while driving, increasing the risk of a crash.
2021 Mazda MAZDA3Problems, recalls & complaints
NHTSA has logged 55 owner complaints about the 2021 Mazda MAZDA3, most often about the engine. It is covered by 1 safety recall, and for recall 21V-101 the manufacturer reports only 95% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 5, 2026. Updated daily. Photo: DieselFordMondeo, CC BY 4.0.
Complaints by system
Where the 2021 Mazda MAZDA3 has problems
55 complaints grouped by the system owners reported.
19Engine
7Electrical system3 crash/fire/injury
7Forward collision avoidance
5Service brakes
5Power train
4Air bags1 crash/fire/injury
3Lane departure
2Wheels
2Fuel/propulsion system
85 other systems2 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 19 | 0 |
| Electrical system | 7 | 3 |
| Forward collision avoidance | 7 | 0 |
| Service brakes | 5 | 0 |
| Power train | 5 | 0 |
| Air bags | 4 | 1 |
| Lane departure | 3 | 0 |
| Wheels | 2 | 0 |
| Fuel/propulsion system | 2 | 0 |
| 5 other systems | 8 | 2 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
1 recall
2021 Mazda MAZDA3 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mazda.
Best & worst years
2021 vs. every other MAZDA3 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the MAZDA3 median. How we score
'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25'26
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2021 Mazda MAZDA3 safety ratings
2021 Mazda Mazda3 5 HB AWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
★★★★★
- Rollover: 5 stars (10.1% risk)
- Stability control: Standard
- Forward collision warning: Standard
- Lane departure warning: Standard
In owners' words
What MAZDA3 owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
Spontaneous loss of power while driving on highway. Check engine light came on. Speed limited by car. Continues to vibrate especially at idle from cold start. Code P0304 intermittently popping up.
The thermostat malfunctioned on this vehicle, resulting in the thermostat remaining open and providing excess coolant to the engine, which in turn damaged internal components of the engine (compromises safety), decreased fuel economy, increased emissions (compromised safety), and decreased the life…
The contact owns a 2021 Mazda Mazda3. The contact received notification of an unknown Class Action Lawsuit Number however, the part to do the repair was unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the repair. The manufacturer was made aware of the…
Own a 2021 MAZDA3?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.