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Mazda CX-9 Reliability Grade

B+Overall

Above-average reliability

EngineB-
TransmissionB+

Grade a specific Mazda CX-9

Reliability changes from year to year. Pick a model year to see its grade, then add mileage and price to get a deal score and estimated miles remaining.

The Mazda CX-9 earns a B+ overall reliability grade from GradeMyCar, with a B- for its engine and a B+ for its transmission. It ranks 4th of 23 midsize SUVs we grade. The engine (B-) is the weaker of its two major components, so ask for oil-change records and have a mechanic check for leaks and oil consumption. Grades are based on 579 owner complaints filed with NHTSA for the 2013-2023 model years, adjusted for how many were sold.

Mazda CX-9 reliability by year

Overall grade for each model year, from owner complaints filed with NHTSA. Tap a year to see its full grade.

2007B2008C+2009B2010D2011C2012C-2013B2014B2015B+2016C+2017B2018D2019B-2020B+2021B-2022A2023A

Best years: 2022 and 2023

Years to avoid: 2010 (water pump failure) and 2018 (overheating / coolant leaks)

How long does the Mazda CX-9 last?

170,000Estimated lifespan (miles)

A rough estimate for the model across all years, not measured for each model year.

Known Mazda CX-9 problems

We track 2 known problem areas for the Mazda CX-9, including which model years they affect. They're in the full report, along with miles remaining and a deal score for the car you're looking at.

See CX-9 problems

Mazda CX-9 vs. other midsize SUVs

ModelEngineTrans.Overall
Nissan Murano A A A
Toyota 4Runner A A A
Buick Enclave A- B+ A-
Toyota Highlander A- B- B+
Mazda CX-9 B- B+ B+
Subaru Outback B+ B B
Chevrolet Traverse B C+ B-
GMC Acadia B C B-
Dodge Journey B- B- B-
Honda Pilot C C+ C+
Nissan Pathfinder B- C C+
Subaru Ascent B C- C+
Chevrolet Blazer C+ C- C+
Dodge Durango B- C+ C+
Jeep Grand Cherokee C C- C
Volkswagen Atlas C- B C
Ford Explorer C+ C C-
Honda Passport C C C-
Hyundai Santa Fe D C- D
Kia Sorento D C- D
Ford Edge C D D
Hyundai Palisade D D F
Kia Telluride D D F

Most reliable midsize SUVs →

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Mazda CX-9 reliability FAQ

Is the Mazda CX-9 reliable?

Above-average reliability. The Mazda CX-9 earns a B+ overall reliability grade from GradeMyCar, with a B- for its engine and a B+ for its transmission. It ranks 4th of 23 midsize SUVs we grade. The engine (B-) is the weaker of its two major components, so ask for oil-change records and have a mechanic check for leaks and oil consumption. Grades are based on 579 owner complaints filed with NHTSA for the 2013-2023 model years, adjusted for how many were sold.

How many miles will a Mazda CX-9 last?

We estimate a well-maintained Mazda CX-9 lasts around 170,000 miles. That's a rough figure for the model across all years, not measured for each model year, so check the grade for the year you're looking at.

What are the best years for the Mazda CX-9?

Based on NHTSA owner complaints, the most reliable Mazda CX-9 model years are 2022 and 2023.

What Mazda CX-9 years should I avoid?

Based on NHTSA owner complaints, the Mazda CX-9 years to be most careful with are 2010 and 2018. The 2010 grades a D overall (engine C, transmission D), and its top engine/transmission problem is water pump failure, which a recall covers. The 2018 grades a D overall (engine D, transmission C), and its top engine/transmission problem is overheating / coolant leaks.

Is the Mazda CX-9 transmission reliable?

GradeMyCar grades the Mazda CX-9 transmission a B+ (above-average reliability). Reliability varies by model year, so grade the specific year you're looking at.

Is the Mazda CX-9 engine reliable?

GradeMyCar grades the Mazda CX-9 engine a B- (average reliability).