Passenger Car • 2.5l 4-cyl powertrain configurations • • NHTSA & EPA Certified Data
The 2021 Mazda Mazda6 has 17 official NHTSA owner defect complaints and zero open safety recall campaigns recorded in the federal database.
The most frequently reported component area is Engine, accounting for 11 reports (65% of total complaints). EPA testing covers 2 certified vehicle configurations spanning 2.5l 4-cyl powertrain configurations. Gasoline and hybrid variants deliver 26 to 29 MPG combined.
Official EPA laboratory test ratings, electric driving range, and annual energy cost estimates by certified vehicle variant
| Variant | Engine | Drivetrain | Transmission | City | Highway | Combined | EV Range | Est. Annual Fuel Cost |
|---|---|---|---|---|---|---|---|---|
| 6 | 2.5L 4-Cyl | Front-Wheel Drive | Automatic (S6) | 26 MPG | 35 MPG | 29 MPG | — | $2,100 / yr |
| 6 | 2.5L 4-Cyl | Front-Wheel Drive | Automatic (S6) | 23 MPG | 31 MPG | 26 MPG | — | $2,350 / yr |
Official 5-Star Safety Ratings evaluated by the National Highway Traffic Safety Administration
| Tested Drivetrain / Cab Variant | Overall Rating | Frontal Crash | Side Crash | Rollover Rating | Rollover Risk |
|---|---|---|---|---|---|
| 4 DR FWD | 5 / 5 | 5 / 5 | 5 / 5 | 4 / 5 | 10.299999999999999% |
Standard and Lane Departure Warning (LDW) is documented as Standard in official NHTSA records for tested 2021 Mazda Mazda6 models.
Summary of 17 verified consumer defect submissions filed with the NHTSA Office of Defects Investigation (ODI)
Ranked by total consumer complaint submissions recorded by NHTSA
Data Attribution & Context: Complaints are self-reported by vehicle owners to NHTSA and represent unverified consumer submissions. Complaint volume does not equal a statistically controlled failure rate and is not adjusted for total vehicles sold or cumulative mileage driven.
View all 2021 Mazda Mazda6 problems & component breakdown (6 categories) →Manufacturer safety recall campaigns monitored and recorded by NHTSA
No open safety recall campaigns are currently on file with NHTSA for the 2021 Mazda Mazda6.
View all 2021 Mazda Mazda6 recalls & campaign history (0 campaigns) →Direct, deterministic answers synthesized from verified United States government databases for the 2021 Mazda Mazda6
AutoUtility's current federal dataset records zero official NHTSA safety recall campaigns for the 2021 Mazda Mazda6.
Recall records can change as manufacturers and NHTSA publish or update campaign notices.
NHTSA records list 17 consumer defect complaints for the 2021 Mazda Mazda6. The most frequently referenced vehicle system is Engine, appearing in 11 filings (65% of submissions).
Consumer complaints represent unverified owner submissions filed under federal reporting guidelines and describe reported component behavior rather than audited failure rates.
Under the NHTSA New Car Assessment Program (NCAP), the 2021 Mazda Mazda6 earned an Overall Safety Rating of 5 out of 5 stars across 1 tested configuration(s).
Laboratory evaluations include a 35 mph frontal barrier crash, side barrier and pole impact tests, and static rollover resistance assessments.
Official EPA laboratory estimates for the 2021 Mazda Mazda6 range from 26 to 29 MPG combined (55% city / 45% highway weighted) depending on engine, transmission, and drivetrain configuration.
Using AutoUtility's standardized operating cost model (15,000 miles/year, $3.50/gal gas, $0.16/kWh electricity), annual energy expenditures range across certified configurations based on official EPA laboratory test baselines.
The specifications, safety ratings, defect reports, and recall campaigns published on this page are retrieved directly from official United States Government agency databases:
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.