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BrakesPart report

2020 Mazda CX-9 Brakes Problems

Complaints
2about this part
Share
11%of 19 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the brakes of the 2020 Mazda CX-9, 11% of the 19 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Vehicle randomly displays smart brake system malfunction, forward smart city brake malfunction and front radar system malfunction. This has been going on for at least a year. I will be driving on a highway, trying to accelerate and these messages will pop up. I'm not able to accelerate when these messages pop up and I have to turn on my hazard lights and pull over to the side of the road. The only thing that clears these warnings are for me to completely shut down my car and restart it. …”

NHTSA complaint #11662517, filed 2025-05

Related service bulletins

Brakes: other model years

YearComplaintsShare of year
2023215%
202219%
2021410%
2020211%
201924%
2018119%
20161110%
201539%
2014917%
20131624%
201214365%
20119958%
20109147%
20091729%
20083017%
200778%

Other parts of the 2020 Mazda CX-9

Engine
5 complaints
Electrical system
4 complaints
Fuel system
3 complaints
Other or unknown
3 complaints
Forward collision avoidance
2 complaints
Transmission and drivetrain
2 complaints
Air bags
1 complaints
Back-over prevention (rear camera)
1 complaints
Body and structure
1 complaints
Tires
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints

← All problems reported for the 2020 Mazda CX-9

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology