THE BRAKES HAVE BECOME VERY HARD TO PUSH, IT TAKES ALL MY MIGHT TO GET CAR TO STOP, AND THERE IS A SQUEALING SOUND WHEN PEDAL IS PUSHED ALL THE WAY DOWN. FEELS AS IF CAR ISNT GOING TO STOP. THIS OCCURED ON THE HIGHWAY AND I WAS LUCKY I WAS ABLE TO DOWNSHIFT TO SLOW CAR AND GET OFF HIGHWAY
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 →How this year compares
Owner complaints by model year
Compare all CX-9 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
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.
Service Brakes complaints
139 reportsTL* THE CONTACT OWNS A 2012 MAZDA CX-9. WHILE DRIVING APPROXIMATELY 35 MPH, THE BRAKE PEDAL WAS DEPRESSED AND A LOUD SQUEALING NOISE EMITTED. AFTER APPLYING THE BRAKE PEDAL NUMEROUS TIMES, THE VEHICLE CAME TO A COMPLETE STOP. THE VEHICLE WAS TOWED TO THE DEALER AND CURRENTLY BEING DIAGNOSED. THE MANUFACTURER WAS NOT NOTIFIED OF …
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TL* THE CONTACT OWNS A 2012 MAZDA CX-9. WHILE DRIVING APPROXIMATELY 35 MPH, THE BRAKE PEDAL WAS DEPRESSED AND A LOUD SQUEALING NOISE EMITTED. AFTER APPLYING THE BRAKE PEDAL NUMEROUS TIMES, THE VEHICLE CAME TO A COMPLETE STOP. THE VEHICLE WAS TOWED TO THE DEALER AND CURRENTLY BEING DIAGNOSED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 95,300. THE VIN WAS UNAVAILABLE.
I NOTICED THAT AT VERY SLOW SPEED (BACKING OUT, EASING FORWARD) THE BRAKE PEDAL WAS VERY HARD, DID NOT DEPRESS, AND CAR WAS DIFFICULT TO STOP. I DID NOT HAVE MUCH OF A PROBLEM AT REGULAR (60 MPH) SPEED. ONLY ONCE WAS THERE A LOUD HISSING ON THE DRIVERS SIDE WHEN THE PEDAL WAS DEPRESSED. THE DEALER TOLD ME BRAKES WERE FINE BUT T…
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I NOTICED THAT AT VERY SLOW SPEED (BACKING OUT, EASING FORWARD) THE BRAKE PEDAL WAS VERY HARD, DID NOT DEPRESS, AND CAR WAS DIFFICULT TO STOP. I DID NOT HAVE MUCH OF A PROBLEM AT REGULAR (60 MPH) SPEED. ONLY ONCE WAS THERE A LOUD HISSING ON THE DRIVERS SIDE WHEN THE PEDAL WAS DEPRESSED. THE DEALER TOLD ME BRAKES WERE FINE BUT THE CAR DID NOT DRIVE FINE. I TOOK IT TO MY MECHANIC WHO TOLD ME I NEEDED FRONT BRAKE PADS. UPON CHANGING BRAKE PADS, I WAS TOLD THE BRAKE BOOSTER WAS BAD AND CAUSING THE PADS TO WEAR ABNORMALLY FAST AND THAT THE PROBLEM WAS ACTUALLY WORSE WITH THE NEW PADS. DEFINITELY A PROBLEM AS I WAS ONLY AT 31,000MI. I DIDN'T NOT RETURN TO THE DEALER AND HAD THE MECHANIC DO THE REPAIR RIGHT THEN. WHAT I THOUGHT WAS MINOR MAINTENANCE TURNED INTO A $500 REPAIR. I FOUND OUT LATER THAT THERE IS AN EXTENDED WARRANTY OF 7YR/90,000MI ON THE BRAKE BOOSTER IF DIAGNOSED AND FIXED BY A DEALER.
THE BRAKES DO NOT WORK. WHEN I INITIALLY DEPRESS THE BRAKE FROM PARK TO DRIVE, THE CAR BEGINS TO ROLL AS IF I DID NOT HAVE MY FOOT ON THE PEDAL. I HEAR A HISSING SOUND NOW WHEN I DEPRESS THE BRAKE. THE BRAKE SYSTEM HAS RAPIDLY DETERIORATED IN JUST 1 WEEK. SOMETIMES, I AM NOT ABLE TO STOP THE VEHICLE AT ALL. I WILL BE TAKING…
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THE BRAKES DO NOT WORK. WHEN I INITIALLY DEPRESS THE BRAKE FROM PARK TO DRIVE, THE CAR BEGINS TO ROLL AS IF I DID NOT HAVE MY FOOT ON THE PEDAL. I HEAR A HISSING SOUND NOW WHEN I DEPRESS THE BRAKE. THE BRAKE SYSTEM HAS RAPIDLY DETERIORATED IN JUST 1 WEEK. SOMETIMES, I AM NOT ABLE TO STOP THE VEHICLE AT ALL. I WILL BE TAKING MY VEHICLE BACK TO THE DEALERSHIP TOMORROW. 4.9.16
MY WIFE COMPLAINED TO ME ABOUT HER BRAKES BECOMING HARD TO THE POINT SHE COULDN'T STOP THE CAR. I THEN TOOK HER CAR FOR A DRIVE AND WHILE IN MOTION I HIT THE BRAKES AND THE BRAKES BECAME SO HARD I HAD TO USE AN UNREASONABLE AMOUNT OF FORCE TO GET THE VEHICLE TO STOP. THE VEHICLE ALSO HAS REALLY DIMINISHED STOPPING POWER WHEN TH…
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MY WIFE COMPLAINED TO ME ABOUT HER BRAKES BECOMING HARD TO THE POINT SHE COULDN'T STOP THE CAR. I THEN TOOK HER CAR FOR A DRIVE AND WHILE IN MOTION I HIT THE BRAKES AND THE BRAKES BECAME SO HARD I HAD TO USE AN UNREASONABLE AMOUNT OF FORCE TO GET THE VEHICLE TO STOP. THE VEHICLE ALSO HAS REALLY DIMINISHED STOPPING POWER WHEN THIS OCCURS. THIS SEEMS TO OCCUR WHEN MORE FREQUENTLY WHEN THE BRAKES ARE PUSHED MORE THAN ONCE IN A SHORT PERIOD OF TIME SUCH AS STOP AND GO TRAFFIC.THE VEHICLE ALSO MAKES A HISSING NOISE WHEN THE BRAKES ARE APPLIED. I BELIEVE THAT THIS COULD BE A BAD BRAKE BOOSTER. I FEEL IT IS A SAFETY ISSUE AND MAY CAUSE AN ACCIDENT.
THE BRAKES HAVE BECOME VERY DIFFICULT TO PUSH. THEY SLOW DOWN THE CAR, BUT REQUIRE INTENSE PRESSURE TO BRING THE VEHICLE TO A COMPLETE STOP. THERE IS ALSO A SLIGHT HISSING NOISE WHEN THE BRAKES ARE APPLIED. IT TAKES ABOUT TWICE THE DISTANCE TO COME TO A COMPLETE STOP THAN PREVIOUSLY. THERE IS NO INDICATION OF A PROBLEM ON TH…
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THE BRAKES HAVE BECOME VERY DIFFICULT TO PUSH. THEY SLOW DOWN THE CAR, BUT REQUIRE INTENSE PRESSURE TO BRING THE VEHICLE TO A COMPLETE STOP. THERE IS ALSO A SLIGHT HISSING NOISE WHEN THE BRAKES ARE APPLIED. IT TAKES ABOUT TWICE THE DISTANCE TO COME TO A COMPLETE STOP THAN PREVIOUSLY. THERE IS NO INDICATION OF A PROBLEM ON THE DASHBOARD; NO WARNING LIGHT HAS BEEN DISPLAYING, BUT SOMETHING IS DEFINITELY WRONG. I DO NOT FEEL VERY SAFE WHEN DRIVING.
THE VEHICLE PRESENTS A CATASTROPHIC FAILURE IN THE BRAKE SYSTEM. THE BRAKE PEDAL GETS EXTREMELY HARD TO DEPRESS AND THE EFFECT IS MINIMAL. THE VEHICLES STOPPING DISTANCE IS SIGNIFICANTLY INCREASED; IF PRESSED HARDER THE PEDAL WILL SUDDENLY GET SOFTER AND THE BRAKE POWER INCREASES UNEXPECTEDLY JERKING THE VEHICLE TO A STOP. A…
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THE VEHICLE PRESENTS A CATASTROPHIC FAILURE IN THE BRAKE SYSTEM. THE BRAKE PEDAL GETS EXTREMELY HARD TO DEPRESS AND THE EFFECT IS MINIMAL. THE VEHICLES STOPPING DISTANCE IS SIGNIFICANTLY INCREASED; IF PRESSED HARDER THE PEDAL WILL SUDDENLY GET SOFTER AND THE BRAKE POWER INCREASES UNEXPECTEDLY JERKING THE VEHICLE TO A STOP. ADDITIONALLY, THERE IS A LOUD HISSING NOISE NOTED WHEN THE BRAKE PEDAL IS DEPRESSED. THE HISSING NOISE COMES FROM THE DRIVERS SIDE OF THE CABIN IN THE VICINITY OF THE EMERGENCY BRAKE PEDAL. MAZDA NEEDS TO ADDRESS THIS ISSUE AS MANY PEOPLE HAVE IDENTIFIED CONCERNS IN THIS AREA. OF COURSE WE OPERATE UTILIZING TOMBSTONE MANAGEMENT THEORIES; ONLY RECOGNIZING A PROBLEM ONCE SOMEONE IS KILLED.
TL* THE CONTACT OWNS A 2012 MAZDA CX-9. THE CONTACT STATED THAT ONCE THE BRAKE PEDAL WAS DEPRESSED, AN ABNORMAL SOUND COULD BE HEARD. IN ADDITION, THE BRAKE PEDAL DESCENDED TO THE FLOORBOARD. THE FAILURE OCCURRED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO THE MECHANIC WHERE IT COULD NOT BE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED…
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TL* THE CONTACT OWNS A 2012 MAZDA CX-9. THE CONTACT STATED THAT ONCE THE BRAKE PEDAL WAS DEPRESSED, AN ABNORMAL SOUND COULD BE HEARD. IN ADDITION, THE BRAKE PEDAL DESCENDED TO THE FLOORBOARD. THE FAILURE OCCURRED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO THE MECHANIC WHERE IT COULD NOT BE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 62,000. THE VIN WAS INVALID. UPDATED 03/18/16*LJ *JS
BRAKE PEDAL MAKES HISSING SOUND WHEN DEPRESSED LIKE AIR LEAKAGE; INTERMITTENTLY VERY DIFFICULT TO DEPRESS BRAKE PEDAL WITH A LOT OF FORCE APPLIED (TYPICALLY IF PUMPING BRAKE), LEADING TO INCREASED STOPPING DISTANCE/DIFFICULT STOPPING. OCCURS WHEN BRAKES DEPRESSED (SOFT PEDAL, AIR HISSING); IF DEPRESSED AGAIN IN QUICK SUCCES…
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BRAKE PEDAL MAKES HISSING SOUND WHEN DEPRESSED LIKE AIR LEAKAGE; INTERMITTENTLY VERY DIFFICULT TO DEPRESS BRAKE PEDAL WITH A LOT OF FORCE APPLIED (TYPICALLY IF PUMPING BRAKE), LEADING TO INCREASED STOPPING DISTANCE/DIFFICULT STOPPING. OCCURS WHEN BRAKES DEPRESSED (SOFT PEDAL, AIR HISSING); IF DEPRESSED AGAIN IN QUICK SUCCESSION, VERY HARD TO PRESS WITH SIGNIFICANTLY REDUCED STOPPING POWER. OCCURS WHETHER VEHICLE STANDING OR IN MOTION. *JS
ON JANUARY 7,2015 I WAS DRIVING ON THE LONG ISLAND EXPRESS WAY MERGING OFF THE RAMP BACK ONTO THE HIGH WAY WHEN I COULDN'T BREAK. MY BREAKS DIDN'T WORK. I KEPT ON PRESSING THEM DOWN AND NOTHING WAS WORKING. TRUCKS WERE ALL HONKING AT ME BECAUSE I WAS MERGING WITHOUT STOPPING. FINALLY I WENT OFF THE RAMP ONTO THE GRASS. I CALLED …
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ON JANUARY 7,2015 I WAS DRIVING ON THE LONG ISLAND EXPRESS WAY MERGING OFF THE RAMP BACK ONTO THE HIGH WAY WHEN I COULDN'T BREAK. MY BREAKS DIDN'T WORK. I KEPT ON PRESSING THEM DOWN AND NOTHING WAS WORKING. TRUCKS WERE ALL HONKING AT ME BECAUSE I WAS MERGING WITHOUT STOPPING. FINALLY I WENT OFF THE RAMP ONTO THE GRASS. I CALLED THE DEALERSHIP AND WAS INFORMED THAT THERE IS A RECALL REGARDING THIS PROBLEM. NEVER GOT ANYTHING IN THE MAIL FROM THEM STATING OF SUCH THING.I TOOK THE CAR IN AND I DON'T OWN THE CAR ANYMORE BECAUSE I WAS BEYOND AFRAID AFTER THIS SITUATION.
Official recalls
419V782000 · 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
2PE19006 · 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
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