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2012 Mazda CX-9

Owner reports · Recalls · Investigations

More warning signs than most CX-9 years

Owner complaints for the 2012 Mazda CX-9 are substantially higher than the model-year median of 61.

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When problems were reported

Mileage at the reported incident

170 reports with mileage · 51 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Service Brakes. Review the 139 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 25 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

9 crash reports0 fire reports4 injury reports

Engine complaints

25 reports
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Mileage unknown · Oct 28, 2022
EnginePower TrainSteering

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 unbeknowns…

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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.

NHTSA ODI #11491291

Mileage unknown · Jan 7, 2022
Engine

CAR IDELS UP AT STOP SIGNS

NHTSA ODI #11446582

110,000 miles · Apr 29, 2021
EngineService Brakes, Hydraulic

TL* THE CONTACT OWNS A 2012 MAZDA CX-9. THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE STALLED. ADDITIONALLY, THE BRAKES FAILED TO ENGAGE WHEN THE BRAKE PEDAL WAS DEPRESSED. THERE WAS NO WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE…

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TL* THE CONTACT OWNS A 2012 MAZDA CX-9. THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE STALLED. ADDITIONALLY, THE BRAKES FAILED TO ENGAGE WHEN THE BRAKE PEDAL WAS DEPRESSED. THERE WAS NO WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE BRAKE MASTER CYLINDER AND BRAKE BOOSTER NEEDED TO BE REPLACED. THE CONTACT WAS ADVISED TO REACH OUT TO THE DEALERSHIP ELDORADO CHEVROLET(233 N CENTRAL EXPWY, MCKINNEY, TX 75070). THE CONTACT WANTED A SECOND OPINION AND THE VEHICLE WAS TAKEN TO ELDORADO CHEVROLET (2300 N CENTRAL EXPY, MCKINNEY, TX 75070) WHERE IT WAS ALSO DIAGNOSED WITH THE MASTER CYLINDER AND BRAKE BOOSTER NEEDING TO BE REPLACED. THE SVC MGR INFORMED CONSUMER HE WOULDNT ADVISED ANYONE TO DRIVE THE VEHICLE UNTIL REPAIRS WERE MADE. DUE TO INCORRECT TITLE WORK THE DEALER REFUNDED SOME MONEY AND TOOK POSESSION OF THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 110,000. THE CONSUMER STATED THE VEHICLE WAS PUT BACK ON THE LOT FOR RESALE. THE CONSUMER CONTACTED A LAWYER AND VEHICLE WAS TAKEN OFF THE LOT BUT CARFAX WAS NOT UPDATED WITH CORRECT INFORMATION.

NHTSA ODI #11414523

99,000 miles · Sep 29, 2020
Engine

MY WIFE WAS DRIVING DOWN A CITY STREET WHEN THE CAR COMPLETELY SHUT DOWN AND LOST ALL POWER. LUCKILY, SHE WAS ABLE TO STOP WITHOUT CAUSING AN ACCIDENT. WE HAD CAR TOWED TO AN INDEPENDENT MECHANIC. AFTER INSPECTION WE WERE TOLD THE WATER PUMP HAD FAILED CAUSING COOLANT TO LEAK INTO THE ENGINE AND CAUSED COMPLETE ENGINE FAILURE…

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MY WIFE WAS DRIVING DOWN A CITY STREET WHEN THE CAR COMPLETELY SHUT DOWN AND LOST ALL POWER. LUCKILY, SHE WAS ABLE TO STOP WITHOUT CAUSING AN ACCIDENT. WE HAD CAR TOWED TO AN INDEPENDENT MECHANIC. AFTER INSPECTION WE WERE TOLD THE WATER PUMP HAD FAILED CAUSING COOLANT TO LEAK INTO THE ENGINE AND CAUSED COMPLETE ENGINE FAILURE. WE WERE QUOTED $8K-$10K TO REPLACE THE ENGINE. THE 2012 MAZDA CX-9 ONLY HAD 99K MILES, BUT UNFORTUNATELY OUR EXTENDED WARRANTY EXPIRED A FEW YEARS AGO, SO MAZDA WAS OF NO HELP. WE WERE LEFT TO JUNK OUR CAR FOR A FRACTION OF WHAT IT'S VALUE SHOULD HAVE BEEN. APPARENTLY THIS IS A KNOWN ISSUE AND WE WILL BE JOINING THE CURRENT CLASS ACTION LAWSUIT AGAINST MAZDA.

NHTSA ODI #11361709

170,000 miles · Jul 1, 2020
Engine

IN OCT. 2019 MY CX9 STOPPED WHILE BEING DRIVEN. FOUND OUT THE WATER PUMP (WHICH IS INSIDE THE ENGINE) HAD GONE OUT AND DESTROYED MY ENGINE. THIS IS A KNOWN PROBLEM OF WHICH MAZDA HAS FAILED TO MAKE THEIR CONSUMERS AWARE. I PURCHASED THIS CARE NEW AND ALL OF MY SERVICES HAD BEEN HANDLED BY MAZDA. NO-ONE TOLD ME ABOUT THIS PROBLEM…

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IN OCT. 2019 MY CX9 STOPPED WHILE BEING DRIVEN. FOUND OUT THE WATER PUMP (WHICH IS INSIDE THE ENGINE) HAD GONE OUT AND DESTROYED MY ENGINE. THIS IS A KNOWN PROBLEM OF WHICH MAZDA HAS FAILED TO MAKE THEIR CONSUMERS AWARE. I PURCHASED THIS CARE NEW AND ALL OF MY SERVICES HAD BEEN HANDLED BY MAZDA. NO-ONE TOLD ME ABOUT THIS PROBLEM AND I STILL HAD TO PAY JUST OVER 4K TO GET A NEW ENGINE OF THE SAME STUPID DESIGN PUT IN MY CAR. THIS IS VERY DANGEROUS PROBLEM. HOW MANY MAZDA DRIVERS HAVE BEEN INJURED OR KILLED IN CRASHES BECAUSE THE WATER PUMP DESTROYED THE ENGINE ON A FREEWAY AND THE CAR CEASING TO MOVE WAS THE CAUSE OF AN ACCIDENT THAT TOTALED THE CAR AND AS A RESULT WENT UNDETECTED? THE ENGINES NEED TO BE RECALLED.

NHTSA ODI #11331950

109,000 miles · Jan 10, 2020
Engine

TL* THE CONTACT OWNS A 2012 MAZDA CX-9. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS TOWED TO KENNEDY MAZDA LOCATED AT 1411 RIDGE PIKE, CONSHOHOCKEN, PA 19428, (610)272-0700, TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE ENGINE WAS DAMAGED DUE TO A WATER PUM…

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TL* THE CONTACT OWNS A 2012 MAZDA CX-9. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS TOWED TO KENNEDY MAZDA LOCATED AT 1411 RIDGE PIKE, CONSHOHOCKEN, PA 19428, (610)272-0700, TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE ENGINE WAS DAMAGED DUE TO A WATER PUMP FAILURE. THE VEHICLE WAS TOWED BACK TO THE HOME AND LATER REPAIRED BY AN INDEPENDENT MECHANIC HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 109,000. THE VIN WAS NOT AVAILABLE.

NHTSA ODI #11298365

72,000 miles · Oct 8, 2019
EngineSteeringVehicle Speed Control

DRIVING ON RTE 3 N IN BRAINTREE. CAR WAS DECELERATING WHILE I HAD MY FOOT ON GAS. LOST STEERING AND BARELY MADE IT TO BRAKE DOWN LANE. THIS CAR HAS 72K MILES ON IT. NEEDS NEW ENGINE.

NHTSA ODI #11267063

52,000 miles · Jun 7, 2019
EngineService BrakesVehicle Speed Control

TL* THE CONTACT OWNS A 2012 MAZDA CX-9. WHILE ATTEMPTING TO ACCELERATE FROM A TRAFFIC LIGHT, THE ACCELERATOR PEDAL WAS DEPRESSED; HOWEVER, THE VEHICLE FAILED TO RESPOND. THE CONTACT STATED THAT THERE WERE NO WARNING INDICATORS BEFORE OR AFTER THE FAILURE. THE BRAKE PEDAL ALSO BECAME EXTREMELY DIFFICULT TO DEPRESS. THE VEHICLE WA…

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TL* THE CONTACT OWNS A 2012 MAZDA CX-9. WHILE ATTEMPTING TO ACCELERATE FROM A TRAFFIC LIGHT, THE ACCELERATOR PEDAL WAS DEPRESSED; HOWEVER, THE VEHICLE FAILED TO RESPOND. THE CONTACT STATED THAT THERE WERE NO WARNING INDICATORS BEFORE OR AFTER THE FAILURE. THE BRAKE PEDAL ALSO BECAME EXTREMELY DIFFICULT TO DEPRESS. THE VEHICLE WAS TOWED TO CONTINENTAL MAZDA (LOCATED AT 2363 AURORA AVE, NAPERVILLE, IL 60540, (630) 352-5900) WHERE IT WAS DIAGNOSED THAT COOLANT ENTERED THE ENGINE OIL AND CAUSED THE ENGINE TO FAIL. THE CONTACT WAS INFORMED THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND PROVIDED CASE NUMBER: 1-2189354066. THE APPROXIMATE FAILURE MILEAGE WAS 52,000.

NHTSA ODI #11218471

128,000 miles · Mar 10, 2019
Engine

VEHICLE STALLED WHILE EXITING THE HIGHWAY, ENGINE LIGHT ON, NOISE FROM TIMING CHAIN AREA, VEHICLE OVERHEATS, WATER PUMP FAILURE PUSHES ANTIFREEZE INTO THE OIL COMPARTMENT CAUSING THE ENGINE TO GET DAMAGED WITHIN MINUTES WHITEOUT A WARNING. THIS IS OBVIOUSLY A MAJOR VERY EXPENSIVE SAFETY ISSUE.

NHTSA ODI #11185636

90,000 miles · Feb 21, 2019
EnginePower Train

I OWN A 2012 MAZDA CX9, WHICH I PURCHASED NEW. ON MONDAY MORNING (NOVEMBER 12, 2018) MY (CHECK ENGINE LIGHT CAME ON) AND SO I TOOK IT IMMEDIATELY TO THE DEALERSHIP FOR DIAGNOSIS. MY CAR WAS RUNNING BEAUTIFULLY, SO I JUST ASSUMED WITH THE WEATHER CHANGE, PERHAPS THE GAS CAP WASN'T TIGHTENED, AND THEY JUST NEEDED TO CLEAR THE CO…

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I OWN A 2012 MAZDA CX9, WHICH I PURCHASED NEW. ON MONDAY MORNING (NOVEMBER 12, 2018) MY (CHECK ENGINE LIGHT CAME ON) AND SO I TOOK IT IMMEDIATELY TO THE DEALERSHIP FOR DIAGNOSIS. MY CAR WAS RUNNING BEAUTIFULLY, SO I JUST ASSUMED WITH THE WEATHER CHANGE, PERHAPS THE GAS CAP WASN'T TIGHTENED, AND THEY JUST NEEDED TO CLEAR THE CODES. IT TURNS OUT THE WATER PUMP FAILED AND APPARENTLY DESTROYED THE ENTIRE ENGINE. WHICH BECAME APPARENT AS I DROVE IT TO THE DEALERSHIP FOR DIAGNOSIS, PER THEIR RECOMMENDATION. MY CAR IS WELL MAINTAINED BASED ON THE DEALER RECOMMENDATIONS AND IS CONSISTENTLY SERVICED AT THE MAZDA DEALERSHIP. THE CAR IS IN FANTASTIC CONDITION WITH ONLY 90,000. AS AN OWNER, I DID EVERYTHING BY THE BOOK IN TERMS OF MAINTENANCE FOR MY CAR. I AM LETTING YOU KNOW, MAZDA HAS A SERIOUS PROBLEM AND IT'S A SAFETY ISSUE, AS WELL. IF A WATER PUMP CAN JUST FAIL WITHOUT WARNING AND COMPLETELY SHUT DOWN AN ENGINE, THAT'S NOT GOOD. I THINK THIS IS FAR MORE DANGEROUS THAN THE AIR BAG RECALL, WHICH IS ONLY A CONCERN IF YOU GET IN AN ACCIDENT. THERE IS NO WARNING ON THE WATER PUMP FAILING, AS IT'S SELF-CONTAINED WITHIN THE POWER TRAIN AND THE ONLY WAY TO CHECK THIS PART IS BY REMOVING THE ENTIRE ENGINE, WHICH LEADS ME TO BELIEVE THIS PART WAS NOT DESIGNED TO BE A WEAR PART. IT'S AN ENGINEERING DESIGN FLAW, THAT CAN CAUSE BODILY HARM IF IT FAILS, BECAUSE IT TAKES OUT THE ENTIRE ENGINE AND YOU LOSE CONTROL OVER THE VEHICLE.

NHTSA ODI #11181656

Official recalls

4

19V782000 · Air Bags:frontal:passenger Side:inflator Module

Oct 31, 2019

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 degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

Consequence & remedy

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.

Remedy: Owners are advised not to drive their vehicles until the repair has been performed. Mazda will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. The recall began December 3, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 1317F. Note: This recall supersedes recalls 16V356 and 17V012.

18V717000 · Air Bags:frontal:passenger Side:inflator Module

Oct 12, 2018

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), and the U.S. Virgin Islands or "Zone A." Additionally, unless covered in "Zone A," Mazda is recalling certain 2011-2013 Mazda6, 2011-2012 CX-7, and 2011-2015 CX-9 sold, or ever registered in the states of Arizona, Arkansas, Delaware, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, West Virginia and the District of Columbia, or "Zone B." Additionally, unless covered in Zone A or Zone B, Mazda is recalling certain 2010-2013 Mazda6, 2010-2012 CX-7, and 2010-2015 CX-9 vehicles ever registered in the states of Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming or "Zone C." These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

Consequence & remedy

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.

Remedy: Mazda will notify owners, and dealers will replace the front passenger air bag inflator with an alternate inflator, free of charge. The recall began November 9, 2018. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 1317F.

17V457000 · Air Bags:frontal:passenger Side:inflator Module

Jul 18, 2017

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 (Saipan), and the U.S. Virgin Islands, or "Zone A." Additionally, unless included in "Zone A" above, Mazda is recalling certain 2009 CX-7, CX-9 and Mazda6 vehicles sold, or ever registered in the states of Arizona, Arkansas, Delaware, District of Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "Zone B." Additionally, unless included in "Zone A" or "Zone B" above, Mazda is recalling certain 2007-2008 CX-7 and CX-9 sold, or ever registered in the states of Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these inflators may rupture due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.

Consequence & remedy

Consequence: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.

Remedy: Owners are advised not to drive their vehicles until the remedy is performed. Mazda will notify owners, and dealers will replace the front passenger side air bag inflator with an alternate inflator, free of charge. The recall began October 4, 2017. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 1317F. Note: This recall supersedes recall 17V-012.

15V451000 · Suspension:front:control Arm:lower Arm; Suspension:front:control Arm:lower Ball Joint

Jul 20, 2015

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.

Consequence & remedy

Consequence: Over time, the ball joint corrosion may result in the front lower control arm separating from the ball joint, causing a loss of steering control and increasing the risk of a crash.

Remedy: Mazda will notify owners, and dealers will replace both the left and right lower control arms, free of charge. The recall began on September 14, 2015. The recall will begin with model year 2007-2009 vehicles registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, Washington D.C., West Virginia, and Wisconsin. The second phase will be for model year 2010-2014 vehicles in the same states. Finally, all remaining vehicles will be remedied. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 8515G.

Additional source detail variants (2)

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.

Consequence: Over time, the ball joint corrosion may result in the front lower control arm separating from the ball joint, causing a loss of steering control and increasing the risk of a crash.

Remedy: Mazda will notify owners, and dealers will replace both the left and right lower control arms, free of charge. The recall began on September 14, 2015. The recall will begin with model year 2007-2009 vehicles registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, Washington D.C., West Virginia, and Wisconsin. The second phase will be for model year 2010-2014 vehicles in the same states. Finally, all remaining vehicles will be remedied. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 8515G.

Suspension:front:control Arm:lower Arm

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.

Consequence: Over time, the ball joint corrosion may result in the front lower control arm separating from the ball joint, causing a loss of steering control and increasing the risk of a crash.

Remedy: Mazda will notify owners, and dealers will replace both the left and right lower control arms, free of charge. The recall began on September 14, 2015. The recall will begin with model year 2007-2009 vehicles registered in Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, Washington D.C., West Virginia, and Wisconsin. The second phase will be for model year 2010-2014 vehicles in the same states. Finally, all remaining vehicles will be remedied. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 8515G.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

2

PE19006 · Inadvertent Curtain Air Bag Deployment

Opened May 2, 2019 · Closed Jan 15, 2021

Status: closed (inferred from source dates) · Air Bags; Air Bags:side/window; Air Bags:side/window:curtain

The Office of Defects Investigation (ODI) opened this Preliminary Evaluation (PE19-006) on May 2, 2019 to investigate two Vehicle Owner Questionnaires (VOQs) and Early Warning Reporting data related to allegations of inadvertent deployment (IAD) of side curtain airbags in Model Year (MY) 2010 through 2013 Mazda CX-9 vehicles. ODI sent an Information Request (IR) to Mazda North America Operations, LLC. to gather information about the alleged defect in the subject vehicles. In the 20 months since opening the PE, ODI has received three additional VOQs. To date, there have been a total of 11 IAD incidents within the identified population of 104,360 vehicles. Of the 11 incidents, no serious injuries were reported. The last known incident occurred in December 2020.Mazda's response to ODI's IR letter identified the root cause as a manufacturing issue of the Bosch SMG076 Roll Rate Sensor within the Restraint Control Module (RCM). During the manufacturing calibration process, small particles may be generated that could affect roll sensor capacitance, which could lead to a loss of curtain airbag protection or an erroneous deployment command. On November 19, 2012, a revised Roll Rate Sensor calibration process was launched, establishing a clean point for the issue. In its responses to ODI, Mazda has assessed the condition as a low risk to motor vehicle safety, with low incident frequency not warranting action. Any RCM data indicating a malfunctioning Roll Rate Sensor will result in the illumination of the airbag warning light. In the event of an erroneous curtain airbag deployment, there is no contact with properly seated occupants. Additionally, the condition is not affected by deterioration or wear, and known incidents established a random pattern of occurrence.During the investigation, ODI examined the injury risk to vehicle occupants from curtain airbag deployments. It was determined that the subject vehicles do not pose a substantial risk to out of position occupants, as testing data falls within Technical Working Group (TWG) reference values. Modeling simulation based on data provided by Mazda for properly seated occupants during static and dynamic airbag deployments indicated sufficient head clearance and no risk of brain injury. ODI analysis reveals that inadvertent deployment incident rates of curtain airbags in the subject vehicles are low through approximately ten years in service. Incident frequency does not meet values warranting recall action, but rather align closely with baseline frequency of general inadvertent deployments which are known to occur in rare driving conditions. Additionally, warranty analysis of RCM failures resulting in a loss of curtain airbag protection revealed low claim rates.Based on the analysis conducted, this investigation has been closed. The closing of this investigation does not foreclose the Agency from taking further action, if warranted, or the potential for a future finding that a safety-related defect exists, based upon additional information the Agency may receive.The five ODI complaints cited above can be reviewed at NHTSA.gov under the following identification numbers: 10905492, 11165925, 11270089, 11310044, 11385219.

Additional source detail variants (3)

Air Bags

The Office of Defects Investigation (ODI) opened this Preliminary Evaluation (PE19-006) on May 2, 2019 to investigate two Vehicle Owner Questionnaires (VOQs) and Early Warning Reporting data related to allegations of inadvertent deployment (IAD) of side curtain airbags in Model Year (MY) 2010 through 2013 Mazda CX-9 vehicles. ODI sent an Information Request (IR) to Mazda North America Operations, LLC. to gather information about the alleged defect in the subject vehicles. In the 20 months since opening the PE, ODI has received three additional VOQs. To date, there have been a total of 11 IAD incidents within the identified population of 104,360 vehicles. Of the 11 incidents, no serious injuries were reported. The last known incident occurred in December 2020.Mazda's response to ODI's IR letter identified the root cause as a manufacturing issue of the Bosch SMG076 Roll Rate Sensor within the Restraint Control Module (RCM). During the manufacturing calibration process, small particles may be generated that could affect roll sensor capacitance, which could lead to a loss of curtain airbag protection or an erroneous deployment command. On November 19, 2012, a revised Roll Rate Sensor calibration process was launched, establishing a clean point for the issue. In its responses to ODI, Mazda has assessed the condition as a low risk to motor vehicle safety, with low incident frequency not warranting action. Any RCM data indicating a malfunctioning Roll Rate Sensor will result in the illumination of the airbag warning light. In the event of an erroneous curtain airbag deployment, there is no contact with properly seated occupants. Additionally, the condition is not affected by deterioration or wear, and known incidents established a random pattern of occurrence.During the investigation, ODI examined the injury risk to vehicle occupants from curtain airbag deployments. It was determined that the subject vehicles do not pose a substantial risk to out of position occupants, as testing data falls within Technical Working Group (TWG) reference values. Modeling simulation based on data provided by Mazda for properly seated occupants during static and dynamic airbag deployments indicated sufficient head clearance and no risk of brain injury. ODI analysis reveals that inadvertent deployment incident rates of curtain airbags in the subject vehicles are low through approximately ten years in service. Incident frequency does not meet values warranting recall action, but rather align closely with baseline frequency of general inadvertent deployments which are known to occur in rare driving conditions. Additionally, warranty analysis of RCM failures resulting in a loss of curtain airbag protection revealed low claim rates.Based on the analysis conducted, this investigation has been closed. The closing of this investigation does not foreclose the Agency from taking further action, if warranted, or the potential for a future finding that a safety-related defect exists, based upon additional information the Agency may receive.The five ODI complaints cited above can be reviewed at NHTSA.gov under the following identification numbers: 10905492, 11165925, 11270089, 11310044, 11385219.

Air Bags:side/window:curtain

The Office of Defects Investigation (ODI) opened this Preliminary Evaluation (PE19-006) on May 2, 2019 to investigate two Vehicle Owner Questionnaires (VOQs) and Early Warning Reporting data related to allegations of inadvertent deployment (IAD) of side curtain airbags in Model Year (MY) 2010 through 2013 Mazda CX-9 vehicles. ODI sent an Information Request (IR) to Mazda North America Operations, LLC. to gather information about the alleged defect in the subject vehicles. In the 20 months since opening the PE, ODI has received three additional VOQs. To date, there have been a total of 11 IAD incidents within the identified population of 104,360 vehicles. Of the 11 incidents, no serious injuries were reported. The last known incident occurred in December 2020.Mazda's response to ODI's IR letter identified the root cause as a manufacturing issue of the Bosch SMG076 Roll Rate Sensor within the Restraint Control Module (RCM). During the manufacturing calibration process, small particles may be generated that could affect roll sensor capacitance, which could lead to a loss of curtain airbag protection or an erroneous deployment command. On November 19, 2012, a revised Roll Rate Sensor calibration process was launched, establishing a clean point for the issue. In its responses to ODI, Mazda has assessed the condition as a low risk to motor vehicle safety, with low incident frequency not warranting action. Any RCM data indicating a malfunctioning Roll Rate Sensor will result in the illumination of the airbag warning light. In the event of an erroneous curtain airbag deployment, there is no contact with properly seated occupants. Additionally, the condition is not affected by deterioration or wear, and known incidents established a random pattern of occurrence.During the investigation, ODI examined the injury risk to vehicle occupants from curtain airbag deployments. It was determined that the subject vehicles do not pose a substantial risk to out of position occupants, as testing data falls within Technical Working Group (TWG) reference values. Modeling simulation based on data provided by Mazda for properly seated occupants during static and dynamic airbag deployments indicated sufficient head clearance and no risk of brain injury. ODI analysis reveals that inadvertent deployment incident rates of curtain airbags in the subject vehicles are low through approximately ten years in service. Incident frequency does not meet values warranting recall action, but rather align closely with baseline frequency of general inadvertent deployments which are known to occur in rare driving conditions. Additionally, warranty analysis of RCM failures resulting in a loss of curtain airbag protection revealed low claim rates.Based on the analysis conducted, this investigation has been closed. The closing of this investigation does not foreclose the Agency from taking further action, if warranted, or the potential for a future finding that a safety-related defect exists, based upon additional information the Agency may receive.The five ODI complaints cited above can be reviewed at NHTSA.gov under the following identification numbers: 10905492, 11165925, 11270089, 11310044, 11385219.

Air Bags:side/window

The Office of Defects Investigation (ODI) opened this Preliminary Evaluation (PE19-006) on May 2, 2019 to investigate two Vehicle Owner Questionnaires (VOQs) and Early Warning Reporting data related to allegations of inadvertent deployment (IAD) of side curtain airbags in Model Year (MY) 2010 through 2013 Mazda CX-9 vehicles. ODI sent an Information Request (IR) to Mazda North America Operations, LLC. to gather information about the alleged defect in the subject vehicles. In the 20 months since opening the PE, ODI has received three additional VOQs. To date, there have been a total of 11 IAD incidents within the identified population of 104,360 vehicles. Of the 11 incidents, no serious injuries were reported. The last known incident occurred in December 2020.Mazda's response to ODI's IR letter identified the root cause as a manufacturing issue of the Bosch SMG076 Roll Rate Sensor within the Restraint Control Module (RCM). During the manufacturing calibration process, small particles may be generated that could affect roll sensor capacitance, which could lead to a loss of curtain airbag protection or an erroneous deployment command. On November 19, 2012, a revised Roll Rate Sensor calibration process was launched, establishing a clean point for the issue. In its responses to ODI, Mazda has assessed the condition as a low risk to motor vehicle safety, with low incident frequency not warranting action. Any RCM data indicating a malfunctioning Roll Rate Sensor will result in the illumination of the airbag warning light. In the event of an erroneous curtain airbag deployment, there is no contact with properly seated occupants. Additionally, the condition is not affected by deterioration or wear, and known incidents established a random pattern of occurrence.During the investigation, ODI examined the injury risk to vehicle occupants from curtain airbag deployments. It was determined that the subject vehicles do not pose a substantial risk to out of position occupants, as testing data falls within Technical Working Group (TWG) reference values. Modeling simulation based on data provided by Mazda for properly seated occupants during static and dynamic airbag deployments indicated sufficient head clearance and no risk of brain injury. ODI analysis reveals that inadvertent deployment incident rates of curtain airbags in the subject vehicles are low through approximately ten years in service. Incident frequency does not meet values warranting recall action, but rather align closely with baseline frequency of general inadvertent deployments which are known to occur in rare driving conditions. Additionally, warranty analysis of RCM failures resulting in a loss of curtain airbag protection revealed low claim rates.Based on the analysis conducted, this investigation has been closed. The closing of this investigation does not foreclose the Agency from taking further action, if warranted, or the potential for a future finding that a safety-related defect exists, based upon additional information the Agency may receive.The five ODI complaints cited above can be reviewed at NHTSA.gov under the following identification numbers: 10905492, 11165925, 11270089, 11310044, 11385219.

PE15022 · Lower Ball Joint Separation

Opened Jun 9, 2015 · Closed Aug 20, 2015

Status: closed (inferred from source dates) · Suspension:front:control Arm:lower Ball Joint

In an July 7,2015 letter to NHTSA, Mazda identified a safety defect that could result in lower ball joint separation in approximately 193,484 model year (MY) 2007 through 2014 Mazda CX-9 vehicles (NHTSA Recall No. 15V-451,Mazda 8515G).Mazda indicated that damage to the ball joint boot may allow water to enter the front suspension ball joint fitting during use which may result in premature ball joint wear and a progressively looser joint.In January 2014, Mazda implemented redesigned lower control arms in production vehicles to improve the durability of the lower ball joints.The redesign involved changing the shape of the top surface of the ball joint boot cover and adding a suspension plate to the undersurface of the knuckle.Mazda's recall will replace the defect lower control arms with the redesigned parts.ODI's analysis of information collected during PE15-022 identified a total of 62 ball joint separation incidents, including 34 identified in ODI complaints and 31 identified in Mazda complaints and field reports (3 of the Mazda records involve vehicles/incidents that were also reported to ODI).When Mazda's design change was implemented, most of the field experience related to lower ball joints involved complaints of noise and premature wear-out.Only 1 of the ODI and 6 of the additional Mazda separation complaints identified in ODI's analysis were reported prior to January 2014.Significant increases in the number and trend in separation complaints were observed in 2015, when 30 of the ODI complaints and 16 of the additional Mazda complaints were reported.The report trend appears to be accelerating, with 29 of the reports received after ODI opened PE15-022 on June 9, 2015.There has been one crash reported to ODI related to the alleged defect (VOQ 10746510). This investigation is closed based on Mazda's recall.The 34 VOQs associated with this investigation are: 10747358, 10746510, 10744897, 10743509, 10736229, 10735938, 10734763, 10734302, 10734290, 10733813, 10732578, 10732217, 10732154, 10731850, 10730736, 10730280, 10730143, 10730114, 10726622, 10726480 10726448, 10726168, 10725839, 10725567, 10725488, 10725427, 10725390, 10717510, 10714469, 10695142, 10668978, 10648429, 10640541, 10546535