FaultScore

Worst years for a Mazda CX-9

Owners have filed 1,827 complaints about the Mazda CX-9 with NHTSA across model years 2007 to 2023. More of them are about the brakes than anything else.

Avoid

2012 Mazda CX-9

263 complaints — the highest FaultScore of any year, mostly brakes.

Cleanest on record

2020 Mazda CX-9

26 complaints — the lowest FaultScore of the graded years.

Every Mazda CX-9 year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded
Year Grade Complaints Crashes Fires Median miles Most reported
2023 C 17 6 0 Other & Unspecified
2022 C 13 1 0 Driver Assist & Collision Avoidance
2021 C 47 13 0 51,093 Engine & Cooling
2020 A 26 1 0 Engine & Cooling
2019 B 75 1 0 28,000 Engine & Cooling
2018 D 167 6 1 18,500 Engine & Cooling
2017 B 78 0 0 33,500 Engine & Cooling
2016 D 142 6 2 32,200 Engine & Cooling
2015 B 45 1 0 65,000 Engine & Cooling
2014 B 73 1 1 52,789 Engine & Cooling
2013 C 80 7 1 53,000 Engine & Cooling
2012 D 263 14 0 55,000 Brakes
2011 D 209 10 5 75,000 Brakes
2010 D 194 6 5 71,000 Brakes
2009 A 66 2 0 82,500 Brakes
2008 D 234 14 0 104,000 Suspension
2007 B 98 3 0 94,500 Suspension

What breaks on a Mazda CX-9

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Brakes 436 23.9%

Worst in 2012

Engine & Cooling 369 20.2%

Worst in 2018

Worst in 2008

Suspension 148 8.1%

Worst in 2008

Airbags 135 7.4%

Worst in 2008

Worst in 2018

Worst in 2018

Steering 60 3.3%

Worst in 2008

Worst in 2016

Worst in 2018

Wheels 37 2.0%

Worst in 2008

Worst in 2012

Worst in 2010

Worst in 2014

Exactly what failed on a Mazda CX-9

The named sub-assemblies behind those complaints, across every model year.

Body 23 33.8%
Automatic Emergency Braking 13 19.1%
Warnings 9 13.2%
Sun/Moon Roof Assembly 7 10.3%
Warnings 5 7.4%
Camera 3 4.4%
Rearview System Braking 2 2.9%
Pressure Monitoring AND Regulating Systems 2 2.9%
Transfer Case (4-WHEEL Drive) 2 2.9%
Lower Ball Joint 2 2.9%

Complaints filed over time

Every complaint about every Mazda CX-9, by the month it reached NHTSA.

Mar 2008 peak 30 Aug 2026

Mazda CX-9 problems by state

Where owners filed from. Heavier states are usually just bigger markets, but a part that fails in heat or salt shows up here first.

Compare the Mazda CX-9

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.