AutoUtility currently tracks 53 official NHTSA owner defect complaints for the 2019 Mazda CX-9. Engine & Cooling issues are the most frequently reported category, appearing in 21 complaints (39.6% of submitted records). Among these NHTSA complaint records, 1 filing cites a crash.
Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records
21 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
6 owner complaints submitted to NHTSA ODI for this subsystem.
5 owner complaints submitted to NHTSA ODI for this subsystem.
Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis
11 complaint narratives describe this symptom.
4 complaint narratives describe this symptom.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"It’s now in the shop being torn down for further inspection but it looks to be a cracked cylinder head leak ."
"The engine cylinder head developed an internal coolant leak, allowing coolant to enter the combustion chamber. This caused engine overheating and smoke coming from the tailpipe while driving. A dealer performed a coolant pressure test confirming coolant leaking into the combustion chamber, and..."
"My 2019 Mazda CX-9 (VIN [XXX]) suffered catastrophic cylinder head failure on the SKYACTIV-G 2.5T engine at approximately 124,000 miles. The failure is consistent with Mazda TSB 01-013/21 (and successors 01-007/22, 01-010/24), in which Mazda acknowledged that cylinder heads on this engine can crack..."
"- Coolant leak at cylinder head and turbo at only 63,000 miles. - Safety issue because no warning lamps or messages appeared and potential for car to overheat without coolant circulating in the system. Car could breakdown at worst time and location. Leaking coolant onto exhaust created potential..."
"Mazda has a current service alert ("SA", SA-001/23) for issues with their Gen 6 Infotainment Center Display, which covers issues (e.g. ghost touch, surface peeling, spider cracks, and white dots) and defects the occur on the primary display of the car. This display provides the driver with..."
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 | 99 | 3 | 0 | View 2016 Problems → |
| 2017 Mazda CX-9 | 61 | 0 | 0 | View 2017 Problems → |
| 2018 Mazda CX-9 | 126 | 4 | 2 | View 2018 Problems → |
| 2019 Mazda CX-9 Current Page | 53 | 1 | 2 | Current |
| 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 24 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Engine NHTSA category: ENGINE | 15 | 0 | 0 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 6 | 0 | 0 | 0 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 4 | 0 | 0 | 0 | 0 |
| Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION | 3 | 1 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,UNKNOWN OR OTHER | 2 | 0 | 0 | 0 | 0 |
| Powertrain NHTSA category: POWER TRAIN | 2 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE | 2 | 0 | 0 | 0 | 0 |
| Structure & Body NHTSA category: STRUCTURE | 2 | 0 | 0 | 0 | 0 |
| Suspension NHTSA category: SUSPENSION | 2 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,VISIBILITY/WIPER | 1 | 0 | 0 | 0 | 0 |
| FUEL SYSTEM, GASOLINE,ENGINE | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,UNKNOWN OR OTHER,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Seats & Restraints NHTSA category: SEATS | 1 | 0 | 0 | 0 | 0 |
| SERVICE BRAKES,ENGINE,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| SERVICE BRAKES,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| Steering NHTSA category: STEERING | 1 | 0 | 0 | 0 | 0 |
| STEERING,SUSPENSION | 1 | 0 | 0 | 0 | 0 |
| STRUCTURE,UNKNOWN OR OTHER | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,ENGINE | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,ENGINE | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,VISIBILITY/WIPER | 1 | 0 | 0 | 0 | 0 |
| VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Visibility / Glass NHTSA category: VISIBILITY | 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 2019 Mazda CX-9
In official NHTSA consumer records, the most frequently cited issue area for the 2019 Mazda CX-9 is Engine & Cooling, appearing in 21 records (39.6% of submitted filings).
Secondary reported categories include Electrical System (7) and Driver Assistance & Safety Tech (6).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 53 consumer defect complaints and 2 safety recall campaigns for the 2019 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 2019 Mazda CX-9, 1 filing cites a crash, 0 cite smoke or fire, and 0 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.