Vehicle Data Hub

2011 Mazda CX-9 problems

Owners have filed 210 complaints with NHTSA about the 2011 Mazda CX-9. Brakes is the most reported problem area, at 48% of complaints. Next are drivetrain & axles (12%) and air bags (10%).

At a glance

Complaints
210 filed with NHTSA
Most reported
Brakes 48% of complaints
Crashes and fires
10 and 5
Injuries and deaths
2 and 0
Typical mileage
75,000 miles 168 complaints with mileage

Source: NHTSA owner complaints

Where the complaints are

Share of this model year's complaints by the part of the car involved. One complaint can name more than one part, so the shares can add up to more than 100%.

When problems show up

Complaints by mileage, 2011 Mazda CX-9 Complaints by odometer reading in 20,000-mile steps. The median is about 75,000 miles. 0k to 20k miles: 9 complaints 20k to 40k miles: 17 complaints 40k to 60k miles: 28 complaints 60k to 80k miles: 37 complaints 80k to 100k miles: 25 complaints 100k to 120k miles: 25 complaints 120k to 140k miles: 20 complaints 140k to 160k miles: 3 complaints 160k to 180k miles: 2 complaints 180k to 200k miles: 1 complaints 200k+ miles: 1 complaints 040k80k120k160k200k miles Typical: 75,000 miles
Based on 168 complaints that include mileage. 32% were reported before 60,000 miles. The amber marker shows the median: half of these complaints happened before that mileage.
View the numbers
MileageComplaints
0k to 20k miles9
20k to 40k miles17
40k to 60k miles28
60k to 80k miles37
80k to 100k miles25
100k to 120k miles25
120k to 140k miles20
140k to 160k miles3
160k to 180k miles2
180k to 200k miles1
200k+ miles1

What the data shows

Of the 168 complaints that include odometer readings, half describe a problem before roughly 75,000 miles. For brakes specifically, the median reported mileage is about 70,000 miles (93 complaints with mileage).

Safety-related details: 10 complaints mention a crash; 5 complaints mention a fire; 2 injuries reported.

Looking only at complaints filed within five years of the model year (so older and newer years are comparable), the 2011 ranks 2nd most-complained-about out of 15 model years of the Mazda CX-9 with enough data (117 complaints in that window). It is also covered by 4 safety recall campaigns.

What owners wrote

A few complaints as filed, shortened and with personal details removed. The first ones are among the most serious reports for this model year; the rest are typical.

I own a 2011 mazda cx-9. Another vehicle crashed head on into my vehicle while it was idling stoped at a stop sign when impact accursed . The air bags failed to deploy and both front passenger seat belts did not retract. There were injuries and a police report was filed. The vehicle was taken to an autobody shop for repair; however, a diagnostic test was not performed. The manufacturer was made aware of the failure. The vehicle was not repaired. The VIN was invalid. The failure mileage was 104,585

Reported at 104,585 miles, May 2015 CrashInjury

2011 mazda cx-9. Consumer writes in regards to vehicle fire caused by transmission/transfer case failure. *smd the consumer stated the bottom of the vehicle caught on fire, it was put out before any excessive damage was done. The consumer stated prior to the fire, the vehicle started vibrating and when she attempted to drive, it would not move.

May 2013 Fire

While driving on interstate 77, north bound, at 55MPH, other motorists informed me that my car was on fire underneath. There were no dashboard warning lights or signals that came on it light up as a warning sign. I pulled over to the side of the road, the fire department and sheriff's office put out the fire and the car was towed. The car is quite new and with very low mileage. Well maintained car. No recent work other than regular oil change. Mazda denies any problems with this car.

Reported at 30,345 miles, November 2014 Fire

My wife complained that the brakes didn't seem to be stopping the vehicle very well. I drove the car and almost had an accident. At slow speed the brake pedal was very hard to depress and made a hissing sound, but continued to travel slowly toward the floor. I limped it to the mazda dealer and I was told that the booster and master cylinder needed to be replaced. When I questioned the service manager about mazda's problems with cx-9 brakes, he said mine was the first one he had heard of.

Reported at 55,000 miles, January 2014

Our vehicle has lost braking power and is unsafe to drive any distance now. It is very difficult to get the vehicle to stop and keep it stopped once it has stopped moving without putting it in park. I have been advised this is in relation to mazda ssp 93. Mazda has advised that is it my responsibility to have this vehicle towed to the nearest dealership, pay for repair labor, and pay for a rental car while repairs are being made.

Reported at 103,000 miles, September 2019

Other model years of the CX-9

Best and worst years for the Mazda CX-9