MAZDA CX-9 · model year

2012 MAZDA CX-9

263 NHTSA complaints, 14 crash reports, and 4 active recalls for this specific cohort.

NHTSA overall rating

Not crash-tested

New Car Assessment Program

The 2012MAZDACX-9 carries 263 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 14 crashes, 0 fires, 10 injuries, and 0 fatalities. For crash performance, NHTSA's New Car Assessment Program gave this cohort an overall Not Rated/5 rating, with Not Rated/5 front crash, Not Rated/5 side crash, and 4/5 rollover scores derived from standardized barrier and dynamic tests.

Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2012 CX-9 is service brakes with 139 filings, followed by engine (25) and air bags (23). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 4 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.

NHTSA currently has 21 investigation files overlapping the 2012 CX-9, and 1 remain open. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.

263
Complaints
14
Crashes
0
Fires
10
Injuries
0
Deaths

Total Complaints

263 filings

Crashes Reported

14 reports

Source

NHTSA ODI

Federal complaints database

Complaints vs. fleet median (215)

Above median complaint volume — review patterns below.

NHTSA NCAP overall: Not Rated/5 — Not rated · Front: Not Rated/5 · Side: Not Rated/5 · Rollover: 4/5

Complaints by Component

ComponentCount
SERVICE BRAKES139
ENGINE25
AIR BAGS23
POWER TRAIN18
VEHICLE SPEED CONTROL11
SUSPENSION9
STEERING7
UNKNOWN OR OTHER6
ELECTRICAL SYSTEM5
EXTERIOR LIGHTING3
FUEL/PROPULSION SYSTEM3
ELECTRONIC STABILITY CONTROL (ESC)2
SEAT BELTS2
SERVICE BRAKES, HYDRAULIC2
EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)1

Recalls (4)

19V78200031/10/2019

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Mazda North American Operations (Mazda) is recalling certain 2007-2012 CX-7, CX-9, and 2009-2012 Maza6 vehicles. These vehicles had their passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant deg

15V45100020/07/2015

SUSPENSION:FRONT:CONTROL ARM:LOWER BALL JOINT

Mazda North American Operations (Mazda) is recalling certain model year 2007-2014 CX-9 vehicles manufactured October 24, 2006, to December 28, 2013. The affected vehicles have front suspension ball joints that may corrode from water leaking into the fitting.

17V45700018/07/2017

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Mazda North America Operations (Mazda) is recalling certain 2012 CX-7, CX-9 and Mazda6 vehicles sold, or ever registered, in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Sa

18V71700012/10/2018

AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE

Mazda North American Operations (Mazda) is recalling certain 2014-2015 Mazda CX-9 vehicles sold, or ever registered in the states of Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan),

Recent Complaints

20250609VEHICLE SPEED CONTROL

While drive i feel like there is sticking something below the car when i am accelerating. And the acceleration became hard. Also i heard a weird noise at that time. Then a saw a leakage below my car.

20250204AIR BAGS

My driver and passenger side curtain airbags randomly deployed without a collision. Thankfully I was at a stop sign when this happened. If it happened while I was driving, I’m sure I would have wrecked and could possibly be dead. It was loud! I thought I’d been shot or that I’d driven over a bomb. We did take the car to someone that’s certified in airbags and it was stated that this was due to a manufacturer’s defect. I also have lots of pictures. There was no warning when the airbags deployed. Mazda is refusing any responsibility due to the car being outside of the warranty.

20240916STEERING

Ball joints replaced due to tear in both rubber covers and driver side ball joint very loose. Was previously repaired in July 2015 under recall Number: 15V451000.

20230929SERVICE BRAKES

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 vehicle harder, increases distance, and makes the vehicle unsafe to drive. The problem has been reproduced via a diagnostic test at Mazda of Gladstone dealership on 9/27/23. The dealership has been the only people who have inspected the issue. There were no warning signs, no warning lights, nothing. It was scary because I didn't think my vehicle was going to stop. It's completely dangerous. I have not gotten the vehicle repaired yet because I believe Mazda holds responsibility as this has been a known issue with their cars.

20230724POWER TRAIN

The water pump suddenly started leaking and the mechanics I talk to said this is a very common problem with this vehicle and type of engine. Sounds like owners are left to foot the bill for this costly and difficult repair of a defective product. Hopefully more owners come forward and report their experience in this regard

20230713CrashSUSPENSION

The contact owns a 2012 Mazda CX9. The contact stated that the vehicle had previously been involved in a crash due to a fractured passenger's side lower control arm. The dealer was made aware of the failure and confirmed that the vehicle had been repaired under NHTSA Campaign Number: 15V451000 (Suspension). The dealer referred the contact to the manufacturer for assistance. An independent mechanic replaced the passenger's side lower control arm; however, the contact stated that after the repair was performed, the engine rattled and the vehicle stalled. The vehicle was then taken back to the independent mechanic, who determined that the driver's side lower control arm spacers were missing and that the front and rear axles, brakes, and rear shocks needed to be replaced. Additionally, the cage bolts needed to be retightened. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 110,000.

Mileage: 11,000

20230228SEAT BELTS

The contact owns a 2012 Mazda CX-9. The contact stated that on several occasions while driving at various speeds, the front passenger’s side seat belt was tightening intermittently causing discomfort for the front seat passenger. There was no warning light illuminated. The vehicle had not yet been taken to an independent mechanic or a local dealer to be diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 175,000.

Mileage: 175,000

20230220SERVICE BRAKES

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-9’s. I reported it to the NHTSA, complaint number 11480067. On January 4, 2023, the brake master cylinder and booster failed again resulting again in very dangerous and frightening driving conditions. The car was driven only 25,383 miles before the brakes failed the second time. The Mazda parts were defective and continue to be so after many years with no effort by Mazda to improve these parts. Attached are the repair invoices for both incidents. I have tried contacting Mazda and they refuse to address the issue.

20221028ENGINE

After hearing low rumbling sound and smelling burnt oil, car was taken to dealer for check up. They informed me of known issue, front PTU leaking oil due to design flaw that put the PTU so close to the exhaust. I am seeing that other owners of this model are also reporting fires due this same exact problem, apparently unbeknownst to me Mazda has provided extended warranty up to 90k miles but not actually informed the owners of this as a potential catastrophic problem. my personal review has informed me that fire seem to be most common between 110,000 and 130,000 mile ranges.

20221028POWER TRAIN

After hearing low rumbling sound and smelling burnt oil, car was taken to dealer for check up. They informed me of known issue, front PTU leaking oil due to design flaw that put the PTU so close to the exhaust. I am seeing that other owners of this model are also reporting fires due this same exact problem, apparently unbeknownst to me Mazda has provided extended warranty up to 90k miles but not actually informed the owners of this as a potential catastrophic problem. my personal review has informed me that fire seem to be most common between 110,000 and 130,000 mile ranges.

20221028STEERING

After hearing low rumbling sound and smelling burnt oil, car was taken to dealer for check up. They informed me of known issue, front PTU leaking oil due to design flaw that put the PTU so close to the exhaust. I am seeing that other owners of this model are also reporting fires due this same exact problem, apparently unbeknownst to me Mazda has provided extended warranty up to 90k miles but not actually informed the owners of this as a potential catastrophic problem. my personal review has informed me that fire seem to be most common between 110,000 and 130,000 mile ranges.

20220818SERVICE BRAKES

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 booster along with the master cylinder had to be replaced. It was a very dangerous and frightening experience the brakes suddenly difficult to use. I contacted Mazda customer service and they did not care. I then tried to escalate the issue over the last two years but it was impossible to contact anyone and all emails came back undeliverable. I just recently learned that I can report this danger to the NHTSA.

20220812UNKNOWN OR OTHER

Vehicle completely shuts off while driving making it hard to turn the steering wheel and apply brakes. Vehicle is able to be turned back on shortly after. Does this randomly. Probably 2 x within a 3-6 month period

20220620SERVICE BRAKES

Brake power boost failure

20220328SERVICE BRAKES

This is relating to NHTSA Investigation PE 14-005. Although this car is a 2012 Mazda CX9, my wife driving the car had the same issue where she heard a hissing noise and the brakes were very difficult for her to depress or to stop. A brake issue is a major defect where the NHTSA should have initiated a recall in accordance with 49 U.S.C. 30118-30120, which required notification of all owners. Why the NHTSA allowed Mazda to only issue a 'Special Extended Warranty' is beyond me, and smells of a back door deal. Nonetheless, I was unaware of this issue with the Mazda CX9's as I was never notified. My wife drove the vehicle home and I purchased the replacement parts at my own expense. This should be a full recall and should be reopened as your current investigation PE 14-005 only included years 2010-2011, and did *not* include the 2012 model year.

20220109CrashSERVICE BRAKES

I was driving along the highway and traffic began to slow. I pushed the brakes and the car did not stop.

Mileage: 104,000

20220107ENGINE

CAR IDELS UP AT STOP SIGNS

20211005SERVICE BRAKES

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.

20211004SERVICE BRAKES

BRAKE BOOSTER INTERNAL FAILURE - This is a known issue and a safety hazard on Mazda CX 9 models and should be investigated again regardless of the age of the vehicle.

20210802SERVICE BRAKES, HYDRAULIC

The contact owns a 2012 Mazda CX-9. The contact stated while driving 25 mph and approaching a stop sign, depressing the brake pedal the vehicle failed to stop. The contact stated that there was no warning light illuminated. The contact stated that she pumped the brake pedal and shifted to neutral until the vehicle came to a stop. The contact was able to drive to her residence. The contact took the vehicle to an independent mechanic and was informed that the power brake booster and master cylinder needed to be replaced. The vehicle was repaired. A dealer was not contacted. The manufacturer was informed of the failure. The failure mileage was 29,805.

Mileage: 29,805

Compare 2012MAZDACX-9 to Similar Vehicles

NHTSA Investigations 1 Open

View all investigations

Frequently Asked Questions

How many complaints does the 2012 MAZDA CX-9 have?
The 2012 MAZDA CX-9 has 263 NHTSA complaints, 14 crashes, 0 fires, 10 injuries, and 0 deaths reported.
What is the safety rating for the 2012 MAZDA CX-9?
The 2012 MAZDA CX-9 received an overall NHTSA safety rating of Not Rated/5, front crash rating of Not Rated/5, side crash rating of Not Rated/5, and rollover rating of 4/5.
Are there any recalls for the 2012 MAZDA CX-9?
Yes, the 2012 MAZDA CX-9 has 4 recall(s). The most common affected component is AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2012 MAZDA CX-9?
The most-complained component for the 2012 MAZDA CX-9 is SERVICE BRAKES with 139 complaints. Other frequently reported areas include ENGINE and AIR BAGS.
Is the 2012 MAZDA CX-9 safe to buy?
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. The 2012 MAZDA CX-9 has an NHTSA safety rating of Not Rated/5. Compare with other model years using the links above.
Where does this data come from?
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.

Vehicle Safety Guides

Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.