2019 Mazda CX-9

Typical pattern

2.7% of complaints about the 2019 Mazda CX-9 came in the first year, which is unremarkable for a 2019 vehicle — around the middle of the 191 model-years on record. The median complaint arrives at 4.7 yr in service. The most-reported system is engine (23 complaints), typically at 5.7 yr or about 62,756 miles.

Complaints: 75
Median age at failure: 4.7 yr
Median mileage: 28,000 n=21
Crash / fire / tow: 5.3% of reports
Safety recalls: 2

Safety recalls — NHTSA campaigns

21V875000 2021-11-12

Fuel system, gasoline:delivery:fuel pump

Mazda 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.

Fuel pump failure may cause an engine stall, increasing the risk of a crash.

19V770000 2019-10-28

Tires:tread/belt

Mazda North American Operations (Mazda) is recalling certain 2019 CX-9 vehicles equipped with Sumitomo Falken ZIEX CT50 A/S tires, size P255/50R20 104V, having date code 1619. An incorrect rubber compound may have been used in the tire's manufacturing, allowing the tread to separate and detach.

A detached tire tread can decrease vehicle stability and increase the risk of a crash.

In owners’ own words

Engine 25,000 mi 2.8 yr in service

The contact owns a 2019 Mazda CX-9. The contact stated while driving 15 mph, she heard an abnormal noise. The contact stated no warning light was illuminated. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had been informed of the failure. The failure mileage was approximately 25,000.

Engine mileage not reported 4.4 yr in service

The coolant was leaking due to a crack in cylinder. The car overheated and the coolant leaked into the engine. Mazda refuses to identify this as an ongoing issue with the Mazda turbo skyactiv models

Engine mileage not reported 4.7 yr in service

My 2019 Mazda CX-9 Signature has developed a coolant leak at the back side of the engine that is consistent with Mazda TSB 01-013/21. Coolant leaks down onto the oil filter and the exhaust where it's burned off. Currently, I can drive the vehicle, but I need to refill the radiator and coolant reservoir. I'm concerned about this developing into a catastrophic leak that could seize the engine or cause a fire from contact with the exhaust. This vehicle is still under the warranty period of 5 years/60K miles. I will initially contact the dealer regarding this issue.

Other CX-9 model years

How to read this

This is what owners reported, not a reliability rating. People file with NHTSA about alarming failures, not routine ones, and complaint volume tracks how many cars were sold.
Failure ages come from the incident date on each complaint, populated on about 83% of records. Mileage is shown where reported — NHTSA’s 2021 system change cut mileage capture to roughly 15%, so it thins out sharply after MY2020.
Every rank compares this vehicle only against others of the same model year. A 2025 car has not had time to accumulate five-year failures, so comparing early-failure share across years is meaningless.
Fourteen make-months distorted by media storms and mass recalls — Toyota in February 2010 ran 11× normal volume across 33 models — are excluded.
Recalls are manufacturer actions and authoritative; complaints are not. A recall listed here may already have been performed on any individual car. Check a specific VIN at nhtsa.gov/recalls.

2019 Mazda CX-9

When each system is reported — middle 50% of complaints

Safety recalls — NHTSA campaigns

In owners’ own words

Other CX-9 model years

How to read this