Mazda CX-9 2018

Safety complaints filed by owners in the first three years, per 1,000 sold.

0.41 per 1,000

0.8 times this nameplate’s own median · from 11 complaints filed in the first three years, of 128 ever. 95% lower bound 0.17.

Against its own model years

The model year carries far more information than the badge, so this is the comparison that matters.

Model year	Per 1,000	Complaints
2008	0.50	13
2009	0.09	2
2010	0.68	17
2011	0.41	13
2012	1.12	33
2013	0.61	15
2014	0.60	13
2015	0.44	8
2016	0.70	12
2017	0.14	3
2018	0.41	11
2019	0.29	8
2021	0.68	21

What owners describe

Phrases over-represented in these complaints compared with the same component on every other vehicle. Counts are complaints containing the phrase.

Engine 76 complaints

coolant	59	77%
head	53	69%
cylinder head	45	59%
coolant leak	25	33%
cracked cylinder	15	20%
leaking coolant	11	15%

When it breaks

Too few complaints record mileage for this model year to show a pattern. NHTSA largely stopped capturing mileage after 2021.

What NHTSA did

No NHTSA investigation covers this model year.

That is not a clean bill of health, and not a criticism of the agency: investigations open for many reasons and complaint volume is only one of them.

What owners and forums say

Not built yet. This panel is meant to carry community sentiment beside the filed-complaint data, so the two can be compared. Showing something weaker here would defeat its purpose.

Check this yourself

Example records behind this page:

11053492 · 11111474 · 11142801 · 11192600 · 11207796 · 11232824

Limits of this figure. It counts safety complaints filed with the federal government, which is a floor on failures and not a census: problems that only cost money are under-reported. Complaint rates also reflect how likely a brand’s owners are to file, which cannot be separated from how often the car fails. Sales are calendar-year and the denominator for this nameplate is automated checks only, not verified against an external source.