← New search

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.

About this comparison →

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

Service Brakes complaints

139 reports
Clear category filter
90,700 miles · Sep 25, 2018
Service Brakes

VACUUM POWER BRAKE BOOSTER FAILURE, MY BRAKES DID NOT WORK AND MY CAR STALLED. THERE IS A WARRANTY EXTENSION FOR THIS PROBLEM - NOT A RECALL - I NEVER KNEW ANYTHING ABOUT IT. A CONSUMER MUST BE NOTIFIED OF A RECALL BUT NOT A WARRANTY EXTENSION BUT THIS IS A VERY DANGEROUS PROBLEM. I FEAR FOR THE SAFETY OF OTHERS WHO MAY NOT K…

Read full complaint

VACUUM POWER BRAKE BOOSTER FAILURE, MY BRAKES DID NOT WORK AND MY CAR STALLED. THERE IS A WARRANTY EXTENSION FOR THIS PROBLEM - NOT A RECALL - I NEVER KNEW ANYTHING ABOUT IT. A CONSUMER MUST BE NOTIFIED OF A RECALL BUT NOT A WARRANTY EXTENSION BUT THIS IS A VERY DANGEROUS PROBLEM. I FEAR FOR THE SAFETY OF OTHERS WHO MAY NOT KNOW ABOUT THE PROBLEM. IF YOU DON'T KNOW ABOUT IT YOU DO NOT ASK TO HAVE IT CHECKED AND WHEN IT FAILS YOU ARE IN DANGER. I APPRECIATE THE WARRANTY EXTENSION BUT I HONESTLY THINK THAT I SHOULD HAVE BEEN NOTIFIED. NO ONE WAS INJURED AND THERE WAS NO PROPERTY DAMAGE - I BELIEVE THERE SHOULD BE SOME RECONSIDERATION REGARDING THE DECISION NOT TO ISSUE A RECALL ON THIS PROBLEM.

NHTSA ODI #11131504

Mileage unknown · Sep 12, 2018
Service Brakes

THE BREAK BOOSTER WENT OUT WITHOUT WARNING AND COULD NOT STOP THE VEHICLE

NHTSA ODI #11129102

110,000 miles · Jul 19, 2018
Service Brakes

TL* THE CONTACT OWNS A 2012 MAZDA CX-9. WHILE DRIVING 35 MPH, THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO ENGAGE. THE VEHICLE WAS EXAMINED BY AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE POWER BRAKE BOOSTER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEA…

Read full complaint

TL* THE CONTACT OWNS A 2012 MAZDA CX-9. WHILE DRIVING 35 MPH, THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO ENGAGE. THE VEHICLE WAS EXAMINED BY AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE POWER BRAKE BOOSTER NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 110,000.

NHTSA ODI #11112323

98,039 miles · Jul 16, 2018
Service Brakes

I PARKED MY MAZDA AFTER COMING BACK FROM MY LUNCH BREAK AND NOTICED THAT MY BRAKE PEDAL WAS A LOT HARDER TO PUSH. I ALSO HEARD A NOISE COMING FROM WHAT SEEMED LIKE THE PEDAL. IT SOUNDED LIKE I WAS LETTING AIR OUT OF A BALLOON. AFTER WORK, WHILE DRIVING IN REVERSE TO BACK OUT OF MY PARKING STALL, I NOTICED THE BRAKES WERE STILL V…

Read full complaint

I PARKED MY MAZDA AFTER COMING BACK FROM MY LUNCH BREAK AND NOTICED THAT MY BRAKE PEDAL WAS A LOT HARDER TO PUSH. I ALSO HEARD A NOISE COMING FROM WHAT SEEMED LIKE THE PEDAL. IT SOUNDED LIKE I WAS LETTING AIR OUT OF A BALLOON. AFTER WORK, WHILE DRIVING IN REVERSE TO BACK OUT OF MY PARKING STALL, I NOTICED THE BRAKES WERE STILL VERY HARD TO PUSH. THE NOISE WAS ALSO STILL HAPPENING, BUT IT WAS LOUDER. I DECIDED NOT TO DRIVE MY VEHICLE UNTIL I HAD IT LOOKED AT BY A MECHANIC. WHEN MY MECHANIC STARTED MY VEHICLE AND BEGAN TO TEST DRIVE IT, THE NOISE WAS GONE, BUT HE ALSO FELT THAT IT WAS VERY HARD TO APPLY MY BRAKES. THE PROBLEM WAS DIAGNOSED AS A BAD BRAKE BOOSTER. AFTER THE PROBLEM WAS DIAGNOSED, I RESEARCHED COMMON COMPLAINTS WITH THIS, AND DISCOVERED THAT IT IS ALSO AN ISSUE IN THE EARLIER MODELS (2010 AND 2011) THIS IS A MAJOR SAFETY RISK THAT I WOULD LIKE INVESTIGATED. THANK YOU!

NHTSA ODI #11111796

58,766 miles · Jul 13, 2018
Service Brakes

LETTER FROM SENATOR GARDNER ON BEHALF OF CONSTITUENT REGARDING HIS CONCERNS ABOUT A DEFECTIVE BRAKE DESIGN SYSTEM WHICH EXISTS IN THE MAZDA CX-9. *LD *JS

NHTSA ODI #11111568

58,766 miles · Jul 3, 2018
Service Brakes

VIRTUALLY COMPLETE LOSS OF BRAKING. QUICK ONSET. APPARENTLY THE SAME UNDERLYING DEFECT AS INVESTIGATED IN 2008-2011 (INCORRECTLY CLOSED) AND IN TSB #SSP93 NHTSA ID #10117767. THE DEALER HAD THE CAR IN FOR ANOTHER ISSUE (RECALL) IN MARCH; BUT DID NOT FIX THIS ISSUE (NOT ALLOWED TO SPEAK OF IT -- UNLESS THE CUSTOMER BRINGS IT UP (…

Read full complaint

VIRTUALLY COMPLETE LOSS OF BRAKING. QUICK ONSET. APPARENTLY THE SAME UNDERLYING DEFECT AS INVESTIGATED IN 2008-2011 (INCORRECTLY CLOSED) AND IN TSB #SSP93 NHTSA ID #10117767. THE DEALER HAD THE CAR IN FOR ANOTHER ISSUE (RECALL) IN MARCH; BUT DID NOT FIX THIS ISSUE (NOT ALLOWED TO SPEAK OF IT -- UNLESS THE CUSTOMER BRINGS IT UP (PERSONAL COMMUNICATION 7/3/2018). NHTSA STAFF SHOULD HAVE NOTICED THAT THE 2012 TSB IS ESSENTIALLY A CONTINUATION OF THE CORE ISSUE FROM 2008 ONWARD. A FAILING BOOSTER SHOULD INCREASE THE EFFORT TO BRAKE, IT SHOULD NOT BE PERMITTED TO RESULT IN COMPLETE LOSS OF FUNCTIONALITY!

NHTSA ODI #11105359

Mileage unknown · Jun 28, 2018
Power TrainService Brakes

AT JUST OVER 90,000 MILES I HAD TRANSFER CASE PROBLEM THAT EVERYONE IS POSTING. AS DESCRIBED BY MECHANIC IT IS A MANUFACTURING DEFECT. TRANSFER CASE IS PLACED JUST ABOVE CATALYTIC CONVERTER (WHICH THROWS OFF ALOT OF HEAT) AS A RESULT OIL IN TRANSFER CASE COOKS OVER TIME AND GEARS ARE DESTROYED. MAZDA DID NOT PROVIDE A WAY TO R…

Read full complaint

AT JUST OVER 90,000 MILES I HAD TRANSFER CASE PROBLEM THAT EVERYONE IS POSTING. AS DESCRIBED BY MECHANIC IT IS A MANUFACTURING DEFECT. TRANSFER CASE IS PLACED JUST ABOVE CATALYTIC CONVERTER (WHICH THROWS OFF ALOT OF HEAT) AS A RESULT OIL IN TRANSFER CASE COOKS OVER TIME AND GEARS ARE DESTROYED. MAZDA DID NOT PROVIDE A WAY TO REPLACE AND OR CHECK THIS FLUID WITHOUT TAKING DOWN THE ENTIRE TRANSMISSION. MECHANIC SAID I WILL HAVE THIS PROBLEM AGAIN AT ROUGHLY ANOTHER 80-100,000 MILES. YEAR AND A HALF LATER I NOTICED A VERY SOFT BRAKE. I REPLACED BRAKE PADS AND DRUMS, AND BRAKE FLUID. I HAVE A VERY HARD BRAKE WHICH THEN SPORATICALLY GOES SOFT. AGAIN I LOOKED UP THIS ISSUE AND FOUND AGAIN MAZDA IS AWARE OF THIS ISSUE AND EXTENTED WARRANTY TO 90,000 MILES. AGAIN I'M JUST OVER THE WARRANTY ALLOWANCE AND NOW MY BRAKE POWER BOOSTER AND POSSIBLY MASTER CYLINDER NEED TO BE REPLACED. BOTH ARE KNOWN ISSUES BY MAZDA. UNFORTUNATELY I WAS THE LUCKY ONE WHO WAS THE BENEFICIARY OF BOTH PROBLEMS JUST OVER THE 90,000 MILE WARRANTY. I REACHED OUT TO MAZDA TO REQUEST SOME ASSISTANCE WITH AT LEAST THE COST OF THE PARTS ON THE BRAKE POWER BOOSTER. I WAS GIVEN A QUICK NO BY MAZDA. VERY FRUSTRATING SINCE THESE ARE BOTH KNOWN PROBLEMS AND THEY WILL NOT AT LEAST WORK WITH ME ON THE PARTS COST.

NHTSA ODI #11104555

115,000 miles · Jun 22, 2018
Service Brakes

I WAS DRIVING TO GET LUNCH FROM WORK AND WENT TO STOP AT AT TRAFFIC LIGHT ON A VERY BUSY ROAD AND MY VEHICLE WOULDN'T STOP. THE PEDAL WAS HARD AND I HAD TO PUSH IT ALL THE WAY DOWN AND NARROWLY MISSED THE VEHICLE IN FRONT OF ME. I DROVE CAREFULLY BACK TO WORK AND HAD THE VEHICLE TOWED TO THE SHOP. IT WAS THE BRAKE BOOSTER. I THE…

Read full complaint

I WAS DRIVING TO GET LUNCH FROM WORK AND WENT TO STOP AT AT TRAFFIC LIGHT ON A VERY BUSY ROAD AND MY VEHICLE WOULDN'T STOP. THE PEDAL WAS HARD AND I HAD TO PUSH IT ALL THE WAY DOWN AND NARROWLY MISSED THE VEHICLE IN FRONT OF ME. I DROVE CAREFULLY BACK TO WORK AND HAD THE VEHICLE TOWED TO THE SHOP. IT WAS THE BRAKE BOOSTER. I THEN DID SOME RESEARCH ON THE SUBJECT SINCE MY VEHICLE IS STILL FAIRLY NEW AND IT SEEMED ODD. I SAW SO MANY COMPLAINTS AND IT SCARED ME. THIS NEEDS TO BE RECALLED BEFORE SOMEONE GETS SERIOUSLY HURT!!

NHTSA ODI #11103350

53,000 miles · May 12, 2018
Service Brakes

APPLY WITH THE BRAKE PEDDLE IS PRESSED. CAN WILL CONTINUE ROLL, AND IN SOME CASES, BECOME VERY HARD TO STOP. SO FAR, NOT HIT ANYTHING, BUT HAVE HAD ISSUES ON NOT BEING ABLE TO STOP AT STOP LINES EVEN AT SLOW SPEEDS.

NHTSA ODI #11093511

53,000 miles · Mar 13, 2018
Service BrakesCrash

THE BRAKING SYSTEM DID NOT FUNCTION CORRECTLY RESULTING IN A CRASH. BRAKES WERE HARD AND COULD NOT BE DEPRESSED WHEN A VEHICLE STOPPED QUICKLY IN FRONT OF ME. TOOK THE CAR TO MAZDA DEALERSHIP AND THEY INFORMED ME THAT THIS IS A KNOWN PROBLEM AND REPLACED THE BRAKE BOOSTER UNDER A "SPECIAL WARRANTY". THIS NEEDS TO BE A SAFETY …

Read full complaint

THE BRAKING SYSTEM DID NOT FUNCTION CORRECTLY RESULTING IN A CRASH. BRAKES WERE HARD AND COULD NOT BE DEPRESSED WHEN A VEHICLE STOPPED QUICKLY IN FRONT OF ME. TOOK THE CAR TO MAZDA DEALERSHIP AND THEY INFORMED ME THAT THIS IS A KNOWN PROBLEM AND REPLACED THE BRAKE BOOSTER UNDER A "SPECIAL WARRANTY". THIS NEEDS TO BE A SAFETY RECALL, I WAS NEVER NOTIFIED OF THIS SAFETY ISSUE. IT IS IMPERATIVE THAT NHTSB REOPEN THE INVESTIGATION ON THIS PROBLEM AS IT DOES NOT ONLY INVOLVE 2010 AND 2011 CARS AND DOES NOT ONLY OCCUR IN "HIGH AMBIENT TEMPERATURES". VEHICLE WAS IN MOTION AND WAS SLOWING ON AN SLIGHT UPHILL GRADE. VEHICLE IS 5 YEARS OLD AND HAS 53,000 MILES.

NHTSA ODI #11078853

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