2021 Mazda CX-9 Brakes Problems
- Complaints
- 4about this part
- Share
- 10%of 40 total for the year
- Median mileage
- 4,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the brakes of the 2021 Mazda CX-9, 10% of the 40 complaints for this model year. Where a mileage was given, the median is 4,000 miles. 2 of these say a crash was involved, according to the filers.
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.
“As I was driving downhill with minimal snow on the ground, I tapped my brakes about 7 times before they locked up. I went to turn to stay on the road and the steering wheel wouldn't budge causing me to go off the road, into an embankment. Vehicle was going about 5-10mph when this occured on a city street.”
NHTSA complaint #11397703, filed 2021-02, 4,000 miles“Hello, I have been to a Mazda dealer complaining of clicking and squeaky brakes for 2 years now. Dealer replaced both front and back breaks and rotors around 22k year ago and to my surprise the issues persist, currently vehicle is at 49k. There is a TSB( 04-001/22) out for my vin and year, so they know its a manufacturing defect and all they do is throw white break grease and a month later the noise is there again when breaking , backing up. I am not the only one, people of reddit confirm this and so does a general google search. …”
NHTSA complaint #11619774, filed 2024-10“The driver side airbag did not deploy in a front end collision on the drivers side. When approaching a vehicle that had come to a sudden and complete stop, the brakes were applied hard to the Mazda CX-9 in order to stop, but after about 1 second they just totally let go and there was no braking at all and the Mazda continued to move forward until it slammed into the vehicle that was stopped. The MyMazda app sent a message that stated that there was a Brake System Malfunctiom which is exactly what occurred and caused the accident.”
NHTSA complaint #11495745, filed 2022-12Related service bulletins
- 11032103Apr 21, 2026This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory…
- 11026353Nov 26, 2025Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to…
- 11009644Oct 5, 2024Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to…
- 11007009Aug 21, 2024Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to…
- 11003396Jun 7, 2024Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to…
- 10252508Mar 8, 2024Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to…
- 10251387Feb 12, 2024Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as…
- 10243568Sep 15, 2023Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to…
Brakes: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2023 | 2 | 15% |
| 2022 | 1 | 9% |
| 2021 | 4 | 10% |
| 2020 | 2 | 11% |
| 2019 | 2 | 4% |
| 2018 | 11 | 9% |
| 2016 | 11 | 10% |
| 2015 | 3 | 9% |
| 2014 | 9 | 17% |
| 2013 | 16 | 24% |
| 2012 | 143 | 65% |
| 2011 | 99 | 58% |
| 2010 | 91 | 47% |
| 2009 | 17 | 29% |
| 2008 | 30 | 17% |
| 2007 | 7 | 8% |
Other parts of the 2021 Mazda CX-9
21 complaintsOther or unknown
6 complaintsTransmission and drivetrain
5 complaintsForward collision avoidance
4 complaintsVehicle speed control
3 complaintsAir bags
2 complaintsBack-over prevention (rear camera)
2 complaintsElectrical system
2 complaintsSteering
1 complaintsSuspension
1 complaintsTires
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2021 Mazda CX-9
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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