AutoUtility currently tracks 17 official NHTSA owner defect complaints for the 2021 Mazda Mazda6. Engine & Cooling issues are the most frequently reported category, appearing in 12 complaints (70.6% of submitted records). Zero crashes, fires, injury reports, or fatality reports are cited across these complaint records.
Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records
12 owner complaints submitted to NHTSA ODI for this subsystem.
2 owner complaints submitted to NHTSA ODI for this subsystem.
1 owner complaint submitted to NHTSA ODI for this subsystem.
1 owner complaint submitted to NHTSA ODI for this subsystem.
Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis
3 complaint narratives describe this symptom.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"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..."
"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."
"Engine oil low warning 2k miles after oil change and again a week after topping oil off."
"My car displayed a low oil level light between oil changes and after checking the dipstick it was low. No sign of visible oil leak so upon further research I was made aware of a TSB about defective valve seals causing excessive oil consumption. My cars VIN is in the affected range outlined in the..."
"Low oil light comes on. Using excessive oil between oil changes."
Reported defect complaint volume across sibling model years (2015–2021)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2015 Mazda Mazda6 | 60 | 6 | 3 | View 2015 Problems → |
| 2016 Mazda Mazda6 | 76 | 9 | 1 | View 2016 Problems → |
| 2017 Mazda Mazda6 | 60 | 1 | 1 | View 2017 Problems → |
| 2018 Mazda Mazda6 | 56 | 1 | 2 | View 2018 Problems → |
| 2019 Mazda Mazda6 | 6 | 0 | 1 | View 2019 Problems → |
| 2020 Mazda Mazda6 | 2 | 0 | 0 | View 2020 Problems → |
| 2021 Mazda Mazda6 Current Page | 17 | 0 | 0 | Current |
Complete distribution of consumer defect reports across all 6 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Engine NHTSA category: ENGINE | 11 | 0 | 0 | 0 | 0 |
| Visibility & Wipers NHTSA category: VISIBILITY/WIPER | 2 | 0 | 0 | 0 | 0 |
| Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION | 1 | 0 | 0 | 0 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,ENGINE | 1 | 0 | 0 | 0 | 0 |
Cross-reference safety recalls, crash test safety ratings, and EPA fuel economy for this model year
Key performance indicators, EPA fuel economy specs, powertrain variants, and summary ratings.
Official recall campaigns, safety defect descriptions, and manufacturer free remedy instructions.
NHTSA 5-Star NCAP crash test results, driver assistance systems, and rollover resistance ratings.
EPA fuel economy ratings, electric range, and annual energy cost benchmarks.
Direct, deterministic answers synthesized from verified United States government databases for the 2021 Mazda Mazda6
In official NHTSA consumer records, the most frequently cited issue area for the 2021 Mazda Mazda6 is Engine & Cooling, appearing in 12 records (70.6% of submitted filings).
Secondary reported categories include Visibility, Wipers & Glass (2) and Driver Assistance & Safety Tech (1).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 17 consumer defect complaints and 0 safety recall campaigns for the 2021 Mazda Mazda6.
Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.
Consumer complaint records on file with NHTSA for the 2021 Mazda Mazda6 cite zero crashes, zero fires, and zero injuries.
Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.