Mazda CX-9 Service Brakes Problems
Owners have filed 428 complaints with NHTSA about service brakes problems on the Mazda CX-9 across 16 model years. The 2012 model year has the most (139). The words owners use most often: “brake booster” (35% of reports).
- 428service brakes complaints
- —median miles at failure
- 22mention a crash
- 6mention an injury
- 0related recalls
- $1,200typical repair cost reported by owners
- 15%of reports with a speed happened at 50+ mph
What owners describe
Phrases that appear unusually often in these complaints compared with complaints about other cars.
- Brake booster: mentioned in 151 of 428 complaints (35%)
- Hissing sound: mentioned in 71 of 428 complaints (17%)
- Master cylinder: mentioned in 43 of 428 complaints (10%)
- Hard push: mentioned in 28 of 428 complaints (7%)
How much does it cost to fix?
Owners who wrote down what they paid or were quoted put the typical service brakes repair on the Mazda CX-9 at $1,200, and half of them between $960 and $1,700.
Based on 19 NHTSA complaints about this problem alone that state a repair bill or quote (2012–2024), converted to 2026 dollars with the U.S. consumer price index. These are owners' own figures, not a quote: they include dealer quotes, and owners who file complaints often faced larger repairs, so they can run higher than typical shop prices. Prices vary by shop, region and warranty coverage. How we calculate this.
At what mileage do service brakes problems happen?
Based on 355 complaints that reported the odometer reading.
How serious are the reports?
Of 428 complaints, 22 mention a crash, 6 an injury.
Mazda CX-9 service brakes complaints by model year
| Model year | Service Brakes complaints | Share of that year | Median miles |
|---|---|---|---|
| 2023 CX-9 | 2 | 15% | — |
| 2022 CX-9 | 1 | 9% | — |
| 2021 CX-9 | 4 | 10% | 4,000 |
| 2020 CX-9 | 2 | 11% | — |
| 2019 CX-9 | 2 | 4% | — |
| 2018 CX-9 | 11 | 9% | 28,000 |
| 2016 CX-9 | 11 | 10% | 40,000 |
| 2015 CX-9 | 3 | 9% | 16,000 |
| 2014 CX-9 | 9 | 17% | 48,000 |
| 2013 CX-9 | 16 | 24% | 58,500 |
| 2012 CX-9 | 139 | 63% | 56,622 |
| 2011 CX-9 | 97 | 57% | 72,623 |
| 2010 CX-9 | 88 | 45% | 83,600 |
| 2009 CX-9 | 17 | 29% | 100,900 |
| 2008 CX-9 | 23 | 13% | 89,263 |
| 2007 CX-9 | 3 | 3% | 107,484 |
When owners reported it
Related recalls (0)
No safety recall lists service brakes for the Mazda CX-9. A pattern of complaints does not always lead to a recall.
What owners report
Short excerpts of recent complaints, with personal details removed. Full reports are on NHTSA.gov.
The break booster went out without any warning or indicators while driving almost resulting in a collision. There are no warning lights on the dashboard.
My 2018 Mazda CX-9 experienced catastrophic engine damage after a radiator failure allowed coolant to enter the engine. The vehicle provided no dashboard warning, overheating alert, or coolant warning before the failure occurred. Modern vehicles are designed to alert drivers to overheating or…
If you press both the brake and gas at the same time (even if accidental), the onboard computer apparently thinks that the driver is confused, and it sets the gas flow to âidleâ. The first time this happened was on the freeway, and I was very lucky to be able to coast into a gas station…
my 2018 MAZDA CX-9 safety issue SCBS / SBS, LAS / LDWS, MASTER AND/OR HBC WARNING LIGHTS Forward sensing camera (FSC) stops functioning cause my car run rough even depress accelration and those light came on dashbaord -Forworad smart city brake support malfunction -smart brake system -front camera…
I am submitting this recall request because my vehicle has experienced repeated incidents of a serious safety issue. While drivingâmost often on the highwayâa warning appears that says âSmart System Brake Malfunction.â Immediately after, the car begins braking on its own without driver…
Frequently asked questions
Do all Mazda CX-9s have service brakes problems?
No. NHTSA has 428 owner complaints about service brakes for the Mazda CX-9. Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the Mazda CX-9 service brakes?
No recall currently lists service brakes for this vehicle.
How much does it cost to fix service brakes problems on the Mazda CX-9?
Owners report a typical cost of $1,200 (half paid between $960 and $1,700), from 19 complaints that state a repair bill or quote, in 2026 dollars.
What do owners say about service brakes problems on the Mazda CX-9?
The most frequent phrase is “brake booster”, in 151 of 428 complaints, followed by “hissing sound” (71).
Other Mazda CX-9 problems
- Engine problems (365)
- Power Train problems (165)
- Suspension problems (158)
- Air Bags problems (147)
See all Mazda CX-9 problems.