2018 Mazda CX-9 problems and recalls

59% of owner complaints on the 2018 Mazda CX-9 related to the Engine (74 of 126).

126
Complaints
2
Recalls
4
Crash reports
1
Fire reports
2
Injuries
43.8
Severity index

Severity index 43.8 Low. The index weights crashes, fires, injuries and fatalities per 100 complaints. How it is calculated.

Middle half of all tracked vehiclesThis vehicle: 43.8p25 46p75 80cleanestworst
Severity index against the quartile range for all tracked vehicles.

Ranked 88 of 122 by severity index among 2018 vehicles with at least 40 complaints, highest first. 28% of those vehicles scored lower. Full 2018 ranking.

Components cited in complaints

EngineEngine: 74 complaints (58.7%)74 59%Unknown Or OtherUnknown Or Other: 19 complaints (15.1%)19 15%Electrical SystemElectrical System: 15 complaints (11.9%)15 12%Power TrainPower Train: 13 complaints (10.3%)13 10%Service BrakesService Brakes: 11 complaints (8.7%)11 9%Fuel/Propulsion SystemFuel/Propulsion System: 5 complaints (4.0%)5 4%Forward Collision Avoid…Forward Collision Avoidance: 4 complaints (3.2%)4 3%Visibility/WiperVisibility/Wiper: 3 complaints (2.4%)3 2%
A single complaint can cite more than one component, so shares total over 100%.
ComponentComplaintsShare of complaints citing it
ENGINE7458.7%
UNKNOWN OR OTHER1915.1%
ELECTRICAL SYSTEM1511.9%
POWER TRAIN1310.3%
SERVICE BRAKES118.7%
FUEL/PROPULSION SYSTEM54.0%
FORWARD COLLISION AVOIDANCE43.2%
VISIBILITY/WIPER32.4%

Complaints filed per year

020392017: 12018: 22019: 52020: 32021: 52022: 212023: 392024: 302025: 102026: 10 (partial year)1718192021222339242526
Complaints by the calendar year they were filed. The hatched bar is the current year to date.
YearComplaints
20171
20182
20195
20203
20215
202221
202339
202430
202510
2026 (year to date)10
Filings in 2023 to 2025 ran 2.7x those in 2020 to 2022 (79 against 29).

Recall campaigns

CampaignReportedComponentSummary
21V87500012/11/2021FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMPMazda North American Operations (Mazda) is recalling certain 2018 Mazda3, Mazda6, 2019 CX-3, 2018-2019 MX-5, CX-5, CX-9, and 2019-2020 Mazda2 vehicles. The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.
19V40300030/05/2019ELECTRICAL SYSTEM:WIRINGMazda North American Operations (Mazda) is recalling certain 2018 CX-9 vehicles. The wiring harness may disrupt electrical communications and disable the passenger frontal air bag, turn signals, and/or engine starting system.

Other Mazda CX-9 model years

Severity index for every other model year on file. Compare all 11 years side by side.

Source. NHTSA public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-08-11. Complaints are unverified consumer reports. Totals vary with units sold and years on the road. Not affiliated with NHTSA or any manufacturer.