2021 Mazda Mazda3 Recalls, Problems & MPG
NHTSA lists 1 safety recall and 54 owner complaints for the 2021 Mazda Mazda3. The EPA rates it 26 to 31 MPG combined, depending on engine and drivetrain.
- Recalls
- 1
- Owner complaints
- 54
- Crashes / fires reported
- 2 / 2
- EPA combined
- 26–31 MPG
2021 Mazda Mazda3 recalls
TiresFeb 22, 2021 · NHTSA 21V101000+
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.
Fix: Mazda will notify owners, and dealers will replace all four tire air valves with new parts, free of charge. The recall began April 6, 2021. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 4721B.
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
Recall repairs are free. Enter your VIN at nhtsa.gov/recalls to see if yours still needs one.
Most reported 2021 Mazda Mazda3 problems
Owner complaints to NHTSA by system. One complaint can name more than one system.
- Engine19
- Electrical System7
- Forward Collision Avoidance7
- Unknown or Other7
- Service Brakes5
- Power Train4
- Air Bags4
- Lane Departure3
2021 Mazda Mazda3 gas mileage
EPA ratings for each version (city / highway / combined).
| Version | Engine | City | Hwy | Comb. | Fuel / yr |
|---|---|---|---|---|---|
| 3 4-Door 2WD | 2.0 L 4 cyl, Automatic (S6) | 28 | 36 | 31 | $2,050 |
| 3 4-Door 2WD | 2.5 L 4 cyl, Automatic (S6) | 26 | 35 | 30 | $2,150 |
| 3 5-Door 2WD | 2.5 L 4 cyl, Automatic (S6) | 26 | 34 | 29 | $2,200 |
| 3 4-Door 4WD | 2.5 L 4 cyl, Automatic (S6) | 25 | 33 | 28 | $2,300 |
| 3 4-Door 4WD | 2.5 L 4 cyl, Automatic (S6) | 23 | 32 | 27 | $2,400 |
| 3 5-Door 2WD | 2.5 L 4 cyl, Manual 6-spd | 24 | 33 | 27 | $2,400 |
| 3 5-Door 4WD | 2.5 L 4 cyl, Automatic (S6) | 25 | 31 | 27 | $2,400 |
| 3 5-Door 4WD | 2.5 L 4 cyl, Automatic (S6) | 23 | 31 | 26 | $2,450 |
Real-world mileage depends on how and where you drive. Logbay compares your actual MPG with these EPA numbers.
Questions
Does the 2021 Mazda Mazda3 have any recalls?
Yes. NHTSA lists 1 recall for the 2021 Mazda Mazda3, most recently for the tires (Feb 22, 2021). Recall repairs are free at a dealer; check your VIN at nhtsa.gov/recalls.
What are the most common 2021 Mazda Mazda3 problems?
Owners filed 54 complaints with NHTSA. The most reported areas are engine (19), electrical system (7), forward collision avoidance (7).
What gas mileage does the 2021 Mazda Mazda3 get?
The EPA rates the 2021 Mazda Mazda3 at 26 to 31 MPG combined (best version: 28 city / 36 highway).
Sources: NHTSA recalls and owner complaints (api.nhtsa.gov), EPA fuel economy (fueleconomy.gov). Updated Oct 26, 2026. Complaint counts are unverified owner reports.