2021 Mazda Mazda6 problems and complaints
Owners have filed 18 complaints with NHTSA about the 2021 Mazda Mazda6. The most-reported areas: Engine (13), Unknown Or Other (2), Visibility/Wiper (2).
Key takeaways
- 18 owner complaints on file with NHTSA.
- 0 involve a crash, 0 a fire, 1 reported injury.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Engine | 13 | 72% |
| Unknown Or Other | 2 | 11% |
| Visibility/Wiper | 2 | 11% |
| Forward Collision Avoidance | 1 | 6% |
| Back Over Prevention | 1 | 6% |
| Fuel/Propulsion System | 1 | 6% |
One complaint can name several components, so shares add up to more than 100%.
Parts for the 2021 Mazda Mazda6
GarageDex's verified specs for this car. Each Buy button searches Amazon for that exact part.
- Battery
- Engine oil
- Engine air filter
- Cabin air filter
- Wiper blades
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| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 Mazda Mazda6 4 DR FWD | 5/5 | 5/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Forward Collision Avoidance - filed 2026-11-02
The contact owns a 2021 Mazda Mazda6. The contact stated that while driving approximately 20-25 MPH, the automatic emergency braking system engaged, causing the vehicle to stop abruptly. The contact’s upper body moved back and forth violently. The contact stated that there was no obstacle or other vehicle in front of t...
Back Over Prevention - filed 2025-06-23
The Infotainment system malfunctions. The rear view camera freezes, not with the current conditions but a still picture of a street I do not recognize. This puts not only myself at risk for an accident but those of others as well. This malfunction has been taken into the dealership on two different occasions. Each time...
Unknown Or Other - filed 2024-07-01
Twice had low oil warning lamp appear. First time in July 2023, 2nd time in June 2024. Both times oil has just been changed 2-3 months prior. Saw articles that there was a recent lawsuit, which is why I am filling complaint as well. Not for lawsuit, but for repairs so this does not occur again.
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More for the 2021 Mazda Mazda6
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.