2010 Mazda CX-9 problems
Owners have filed 194 complaints about the 2010 Mazda CX-9 with NHTSA. Service brakes account for 37.6% of them — far more than any other system, ahead of power train at 11.3%.
Complaints194
Crashes6
Fires5
Injuries5
Deaths0
What owners report breaking
Service brakes 37.6% · 73
Power train 11.3% · 22
Engine 8.8% · 17
Suspension 7.2% · 14
Air bags 6.2% · 12
Vehicle speed control 4.1% · 8
Structure 3.1% · 6
Electrical system 3.1% · 6
Severity
Of those complaints, 6 describe a crash, 5 describe a fire and 5 report an injury.
Reading the numbers
Across the 6 model years of the Mazda CX-9 in this data, 2010 draws comparatively few complaints; 2012 is the outlier year.
Filings have fallen off, 10 in the last three years against 29 in the three before. That is normal as a generation leaves the road.
The median odometer reading at the time of complaint was 71,000 miles.
In owners' own words
Driving and brakes would not work without pressing really hard. The problem was reported before on these cars and continue to be a problem. https://www.carcomplaints.com/Mazda/CX-9/2010/brakes/stiff_difficult_braking.shtml my car has been in 2 shops for about 3 months now. They had to replace several parts in the braking system. Than the rear brakes completely froze up and towed to Mazda out of Greensboro NC. Service brakes
The contact owns a 2010 Mazda CX-9. The contact stated that the brakes failed intermittently. The contact mentioned that he had to apply force in order to stop the vehicle. The vehicle was taken to the dealer. The manufacturer was notified of the failure. The approximate failure mileage was 41,000. Updated 8/28/14*cn the consumer stated the dealer repaired the vehicle. Updated 09/15/2014 Service brakes · reported at 41,000 miles
The brakes on our 2010 CX-9 are hissing upon brake engagement and have a hard feel to them for the first half or so. The brakes are slow to engage during this time. After the half way mark the brakes engage quickly and forcefully. It is consistent with the other complaints for the brake booster failure. I am having it looked at this week at a Mazda dealership. Service brakes · reported at 85,000 miles
Verbatim from NHTSA filings. Complaints are unverified owner reports.
Safety recalls
Checking NHTSA for open recalls…