2012 Mazda CX-9 Service Brakes Problems
Owners have filed 139 complaints with NHTSA about service brakes problems on the 2012 Mazda CX-9, 63% of all complaints for this model year. Half of the reports with a mileage happened before 56,622 miles. The words owners use most often: “brake booster” (33% of reports).
- 139service brakes complaints
- 56,622median miles at failure
- 4mention a crash
- 1mention an injury
- 0related recalls
- 14%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 46 of 139 complaints (33%)
- Hissing sound: mentioned in 28 of 139 complaints (20%)
- Hard stop: mentioned in 12 of 139 complaints (9%)
- Like air: mentioned in 9 of 139 complaints (6%)
At what mileage do service brakes problems happen?
Based on 119 complaints that reported the odometer reading.
How serious are the reports?
Of 139 complaints, 4 mention a crash, 1 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 2012 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.
I was driving normally when I started sowing down and noticed the brakes were harder to push. I finally stopped just before almost rear-ending a vehicle in front of me. It turns out the brake booster, a known problem that was not communicated to me a few years ago, failed and makes braking the…
On August 14, 2020, the brake booster along with the master cylinder failed, resulting in very dangerous and frightening driving conditions, and the parts were replaced with Mazda original parts. This was an ongoing issue with the Mazda CX-9âs. I reported it to the NHTSA, complaint number…
The brakes suddenly became very difficult to press as if I did not have power brakes. No warning lights came on and it became very difficult to stop the car. Then if I had to break suddenly and hard it would stall. I brought it to the repair shop and the brake booster was defective. The brake…
Frequently asked questions
Do all 2012 Mazda CX-9s have service brakes problems?
No. NHTSA has 139 owner complaints about service brakes for the 2012 Mazda CX-9 (63% of the 221 complaints for this model year). Complaint data shows that the problem is reported, not how many of all cars sold are affected.
Was there a recall on the 2012 Mazda CX-9 service brakes?
No recall currently lists service brakes for this vehicle.
At what mileage do service brakes problems start?
The median reported mileage is 56,622 miles: half of the reports with a mileage came before that.
What do owners say about service brakes problems on the 2012 Mazda CX-9?
The most frequent phrase is “brake booster”, in 46 of 139 complaints, followed by “hissing sound” (28).
See all 2012 Mazda CX-9 problems or service brakes problems across all CX-9 years.