AutoUtility currently tracks 99 official NHTSA owner defect complaints for the 2016 Mazda CX-9. Engine & Cooling issues are the most frequently reported category, appearing in 59 complaints (59.6% of submitted records). Among these NHTSA complaint records, 3 filings cite a crash, 1 cites a fire, 2 report one or more injuries.
Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records
59 owner complaints submitted to NHTSA ODI for this subsystem.
14 owner complaints submitted to NHTSA ODI for this subsystem.
11 owner complaints submitted to NHTSA ODI for this subsystem.
9 owner complaints submitted to NHTSA ODI for this subsystem.
Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis
22 complaint narratives describe this symptom.
3 complaint narratives describe this symptom.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"In June of 2022 I started having a strong antifreeze/engine coolant smell inside the cab of my vehicle and also outside the vehicle. I had the car checked for a radiator leak, but there wasn’t one. I took my car into my local Mazda where they found that the engine coolant was leaking into the heads..."
"Smart City Break Malfunction warning light appears while driving. Simultaneously the tire pressure warning appears. Also, at the same time, the temperature reads -20 to -40 degrees. Yes, vehicle is available for inspection. Fearful that car could randomly break while driving putting myself and..."
"Engine failure with crack in the engine after a loss of coolant fluid."
"Head gasket leaking and caused major engine issue at 89,000 miles. Mazda has known of this issue, but refuses to recall it."
"While my wife was driving her 2016 Mazda Cx-9 Grand Touring on the freeway, many of the dashboard indicator lights came on warning her the engine was over heating and to pull over immediately. While she was attempting to move over to the shoulder, smoke appeared from underneath the engine hood..."
Reported defect complaint volume across sibling model years (2015–2026)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2015 Mazda CX-9 | 35 | 1 | 2 | View 2015 Problems → |
| 2016 Mazda CX-9 Current Page | 99 | 3 | 0 | Current |
| 2017 Mazda CX-9 | 61 | 0 | 0 | View 2017 Problems → |
| 2018 Mazda CX-9 | 126 | 4 | 2 | View 2018 Problems → |
| 2019 Mazda CX-9 | 53 | 1 | 2 | View 2019 Problems → |
| 2020 Mazda CX-9 | 19 | 1 | 1 | View 2020 Problems → |
| 2021 Mazda CX-9 | 37 | 7 | 1 | View 2021 Problems → |
| 2022 Mazda CX-9 | 9 | 1 | 0 | View 2022 Problems → |
| 2023 Mazda CX-9 | 12 | 3 | 0 | View 2023 Problems → |
| 2024 Mazda CX-9 | 0 | 0 | 0 | View 2024 Problems → |
| 2025 Mazda CX-9 | 0 | 0 | 0 | View 2025 Problems → |
| 2026 Mazda CX-9 | 0 | 0 | 0 | View 2026 Problems → |
Complete distribution of consumer defect reports across all 36 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Engine NHTSA category: ENGINE | 46 | 0 | 0 | 0 | 0 |
| Service Brakes NHTSA category: SERVICE BRAKES | 5 | 0 | 0 | 0 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 4 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE | 4 | 0 | 0 | 0 | 0 |
| Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM | 3 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,SEATS | 2 | 0 | 1 | 0 | 0 |
| Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING | 2 | 0 | 0 | 0 | 0 |
| Powertrain NHTSA category: POWER TRAIN | 2 | 0 | 0 | 0 | 0 |
| VEHICLE SPEED CONTROL,ENGINE,FUEL/PROPULSION SYSTEM | 2 | 0 | 0 | 0 | 0 |
| Visibility & Wipers NHTSA category: VISIBILITY/WIPER | 2 | 0 | 0 | 0 | 0 |
| Wheels & Hubs NHTSA category: WHEELS | 2 | 0 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,ENGINE | 1 | 1 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,SERVICE BRAKES,ENGINE | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL | 1 | 0 | 0 | 0 | 0 |
| ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES,ENGINE | 1 | 0 | 0 | 0 | 0 |
| ENGINE,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| FUEL SYSTEM, GASOLINE,ELECTRICAL SYSTEM,ENGINE | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,STRUCTURE | 1 | 0 | 0 | 1 | 0 |
| POWER TRAIN,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| Seats & Restraints NHTSA category: SEATS | 1 | 1 | 0 | 0 | 0 |
| STEERING,ELECTRICAL SYSTEM,ENGINE | 1 | 0 | 0 | 0 | 0 |
| STEERING,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| Structure & Body NHTSA category: STRUCTURE | 1 | 0 | 0 | 0 | 0 |
| STRUCTURE,SERVICE BRAKES,ENGINE | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,AIR BAGS,STRUCTURE | 1 | 1 | 0 | 2 | 0 |
| SUSPENSION,POWER TRAIN | 1 | 0 | 0 | 0 | 0 |
| Tires NHTSA category: TIRES | 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 |
| UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| WHEELS,SERVICE BRAKES | 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 2016 Mazda CX-9
In official NHTSA consumer records, the most frequently cited issue area for the 2016 Mazda CX-9 is Engine & Cooling, appearing in 59 records (59.6% of submitted filings).
Secondary reported categories include Electrical System (14) and Brakes & Traction Control (11).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 99 consumer defect complaints and 0 safety recall campaigns for the 2016 Mazda CX-9.
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.
Among consumer complaint records on file with NHTSA for the 2016 Mazda CX-9, 3 filings cite a crash, 1 cite smoke or fire, and 2 report one or more 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.