2012 Mazda CX-9 brakes problems
Owners reported brakes problems in 143 complaints for the 2012 Mazda CX-9, 54% of the complaints on file. It is the most reported problem area for this model year.
At a glance
- Complaints
- 143 54% of this year's complaints
- Typical mileage
- 57,000 miles 123 complaints with mileage
- Crashes and fires
- 4 and 0
- Injuries and deaths
- 1 and 0
Source: NHTSA owner complaints
When brakes problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 12 |
| 20k to 40k miles | 20 |
| 40k to 60k miles | 39 |
| 60k to 80k miles | 23 |
| 80k to 100k miles | 13 |
| 100k to 120k miles | 11 |
| 120k to 140k miles | 2 |
| 140k to 160k miles | 3 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 0 |
| 200k+ miles | 0 |
What the data shows
Of the 123 brakes complaints that report mileage, the median is about 57,000 miles, and 58% were reported before 60,000 miles.
These complaints mention 4 crashes, 1 injury.
What owners wrote
Brake booster failure caused a near miss. Wife driving with 5 year old daughter in the vehicle. The stopping force required on the brake pedal became excessive and the stopping (safe braking) distance significantly increased causing emotional distress. My understanding is this part (brake booster) has a defective diaphragm that deteriorates over time. The extended warranty created for this particular issue did not cover the vehicle at the time of the failure.
Tl* the contact owns a 2012 mazda cx-9. While driving various speeds, the brake pedal was depressed and failed to engage correctly. The pedal felt stiff and there were no warning indicators illuminated in the vehicle. The vehicle was taken to an independent mechanic who diagnosed that the brake booster was faulty and there was a leak in the master cylinder that needed replacement. The vehicle was repaired. The manufacturer was notified and opened a case. The VIN was invalid.
Other problems reported for the 2012 Mazda CX-9
- Engine 26 complaints
- Air bags 23 complaints
- Drivetrain & axles 18 complaints