NHTSA owner reports · September 18, 2026 snapshot.
Service Brakes complaints
73 reportsClear category filter94,057 miles · May 30, 2014
Service BrakesService Brakes, Hydraulic
TL* THE CONTACT OWNS ON A 2010 MAZDA CX-9. THE CONTACT STATED THAT WHILE DRIVING AT 10 MPH, THE BRAKE PEDAL BECAME STUCK TO THE FLOORBOARD AND MADE AN ABNORMAL NOISE WHILE THE CONTACT WAS ATTEMPTING TO STOP. THE CONTACT WAS ABLE TO RELEASE THE BRAKE PEDAL AND STOP THE VEHICLE BY DEPRESSING THE BRAKE PEDAL SEVERAL TIMES. THE VEHI…
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TL* THE CONTACT OWNS ON A 2010 MAZDA CX-9. THE CONTACT STATED THAT WHILE DRIVING AT 10 MPH, THE BRAKE PEDAL BECAME STUCK TO THE FLOORBOARD AND MADE AN ABNORMAL NOISE WHILE THE CONTACT WAS ATTEMPTING TO STOP. THE CONTACT WAS ABLE TO RELEASE THE BRAKE PEDAL AND STOP THE VEHICLE BY DEPRESSING THE BRAKE PEDAL SEVERAL TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 94,057.
NHTSA ODI #10595017
19,000 miles · May 14, 2014
Service BrakesCrash
I FILED A COMPLAINT THROUGH MAZDA IN 2012 AND IT DIDN'T GO ANYWHERE. I SAW AN ARTICLE IN USA TODAY, REGARDING MY VEHICLE STATING THAT AN INVESTIGATION WAS STARTED DUE TO 7 REPORTED INCIDENTS ON BRAKE FAILURES WHICH RESEMBLED MY EXPERIENCE. I AM NOW SHARING MY STORY AS IT COULD HAVE RESULTED IN SERIOUS INJURY. I WAS APPROACHIN…
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I FILED A COMPLAINT THROUGH MAZDA IN 2012 AND IT DIDN'T GO ANYWHERE. I SAW AN ARTICLE IN USA TODAY, REGARDING MY VEHICLE STATING THAT AN INVESTIGATION WAS STARTED DUE TO 7 REPORTED INCIDENTS ON BRAKE FAILURES WHICH RESEMBLED MY EXPERIENCE. I AM NOW SHARING MY STORY AS IT COULD HAVE RESULTED IN SERIOUS INJURY. I WAS APPROACHING AN INTERSECTION AND APPLIED THE BRAKE BUT THE CAR DID NOT SLOW DOWN, I PUSHED THE BRAKE ALL THE WAY TO THE FLOOR AND THE WHEELS SQUEALED BUT THE CAR DID NOT SLOW. I LET UP ON THE BRAKE AND REAPPLIED AND THAT IS WHEN THE CAR BEGAN TO SLOW DOWN. BUT, IT WAS TOO LATE. I HIT THE CAR IN FRONT OF ME AND LAUNCHED IT INTO THE MIDDLE OF THE INTERSECTION. THANKFULLY, THE LIGHT HAD JUST CHANGED AND THE CROSS TRAFFIC WAS AT A STOP. WHEN THE POLICE ARRIVED, THEY NOTICED ONE SKID MARK ON THE DRIVER SIDE ONLY WHICH WAS AROUND 200 YARDS. ABOUT 4 FEET PRIOR TO IMPACT, THERE WERE TWO SKID MARKS, ONE ON EACH SIDE OF THE VEHICLE. THEY SAID THAT THEY HAD NEVER SEEN ANYTHING LIKE IT AND THAT I SHOULD TAKE IT TO AN INDEPENDANT PERSON TO GET THE BRAKES CHECKED OUT. I HAVE PHOTOS OF THIS AND SENT ALL OF THE DOCUMENTATION SENT TO THE INSURANCE COMPANY AND TO MAZDA. I FELT NEITHER BELIEVED ME AND WAS VERY DIAPPOINTED IN MAZDA'S RESPONSE. EVENTIALLY, I GAVE UP. WE ACTUALLY WERE GOING TO SELL THE VEHICLE AS I DIDN'T FEEL COMFORTABLE DRIVING IT. HOWEVER, AFTER ALL OF THE RESPONSES I WAS GETTING ABOUT WHAT I DESCRIBED AS IMPOSSIBLE WITH ANTI LOCK BREAKS OR THAT IT WAS A RESULT OF "PANIC BREAKING", I SECOND GUESSED MYSELF AND WE STILL HAVE THE VEHICLE. ON A SEPARATE OCCASSION 2-4 WEEKS PRIOR TO THE ACCIDENT ON MAY 15, MY HUSBAND WAS DRIVING VERY SLOWLY IN A RESIDENTIAL AREA AND WHEN HE APPLIED THE BRAKE, THE CAR INITIALLY DID NOT STOP UNTIL REAPPLYING. HE ROLLED PART WAY INTO THE INTERSECTION. I WAS WITH HIM WHEN THIS OCCURRED. *TR
NHTSA ODI #10588434
44,521 miles · Apr 3, 2014
Electrical SystemFuel System, GasolineService Brakes
THE VEHICLE STALLS WHEN IDLING AT A STOP LIGHT OR IN A DRIVE THRU. THE VEHICLES MOTOR BEGINS TO SHAKE AND THEN EVENTUALLY DIES AND STALLS OUT AND THE VEHICLE MUST BE STARTED AGAIN WITH THE TURN OF THE IGNITION. THE BRAKING SYSTEM IS ALSO DEFECTIVE. WHEN AT A STOP LIGHT AND YOUR FOOT IS ON THE BRAKE PEDAL. THE PEDAL SUDDENLY SI…
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THE VEHICLE STALLS WHEN IDLING AT A STOP LIGHT OR IN A DRIVE THRU. THE VEHICLES MOTOR BEGINS TO SHAKE AND THEN EVENTUALLY DIES AND STALLS OUT AND THE VEHICLE MUST BE STARTED AGAIN WITH THE TURN OF THE IGNITION. THE BRAKING SYSTEM IS ALSO DEFECTIVE. WHEN AT A STOP LIGHT AND YOUR FOOT IS ON THE BRAKE PEDAL. THE PEDAL SUDDENLY SINKS AS IF THE BRAKE FLUID IN THE MASTER CYLINDER HAS DRAINED FULLY AND THE BRAKE PEDAL SINKS ALL THE WAY TO THE FLOOR AND THE VEHICLE SHOOTS FORWARD EVEN IF YOUR FOOT IS ON THE BRAKE. ANOTHER PROBLEM IS IN THE POWER DOOR LOCK SYSTEM. THERE HAS BEEN A TIME WHEN THE POWER DOOR LOCK WAS STUCK AND THE REAR RIGHT DOOR COULD NOT BE SHUT. I HAD TO DRIVE THE CAR TO THE DEALERSHIP WITH THE CAR DOOR FLOPPING ALL OVER THE PLACE. THEY WERE ABLE TO FIX IT AT THE DEALERSHIP BUT COULD NOT FIGURE OUT HOW IT OCCURRED. THEY WERE AS PUZZLED AS I WAS. THE CAR WAS BOUGHT BACK IN 2010 BRAND NEW FROM THE MAZDA DEALERSHIP. THE REVIEWS WERE GOOD FOR THE VEHICLE. ITS THE FIRST MAZDA WE PURCHASED AND IS PROBABLY GOING TO BE THE LAST. *TR
NHTSA ODI #10577269
Mileage unknown · Mar 27, 2014
Service BrakesVehicle Speed Control
I WAS DRIVING AROUND A SHARP BEND IN THE ROAD. I PUSHED DOWN ON THE BRAKE PEDDLE TO SLOW DOWN AND THE CAR KEPT ACCELERATING AT THE SAME SPEED. THE CAR NEVER SLOWED DOWN AND I HAD TO TAKE THE CORNER AT A UNSAFE SPEED. I DROVE TO THE NEXT STREET AND TESTED THE BRAKES AND THEY WORKED FINE? VERY SCARY INCIDENT. *TR
NHTSA ODI #10575170
51,000 miles · Mar 26, 2014
Service Brakes
TL* THE CONTACT OWNS ON A 2010 MAZDA CX9. THE CONTACT STATED THAT THE BRAKE PEDAL BECAME STUCK TO THE FLOORBOARD AND MADE A STRANGE NOISE WHILE ATTEMPTING TO STOP. THE CONTACT WAS ABLE TO RELEASE THE BRAKE PEDAL AND BROUGHT THE VEHICLE TO A STOP BY DEPRESSING THE BRAKE PEDAL SEVERAL TIMES. THE CONTACT WAS ABLE TO DRIVE THE VEHI…
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TL* THE CONTACT OWNS ON A 2010 MAZDA CX9. THE CONTACT STATED THAT THE BRAKE PEDAL BECAME STUCK TO THE FLOORBOARD AND MADE A STRANGE NOISE WHILE ATTEMPTING TO STOP. THE CONTACT WAS ABLE TO RELEASE THE BRAKE PEDAL AND BROUGHT THE VEHICLE TO A STOP BY DEPRESSING THE BRAKE PEDAL SEVERAL TIMES. THE CONTACT WAS ABLE TO DRIVE THE VEHICLE TO AN INDEPENDENT MECHANIC FOR FURTHER INSPECTION. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 51,000.
NHTSA ODI #10574868
31,000 miles · Mar 20, 2014
Service Brakes
I NOTICED A HISSING SOUND WHEN PRESSING THE BRAKE PEDAL TODAY 3/20/2014 AND LOSS OF BRAKE PRESSURE. I NOTIFIED THE DEALER AND THEY PROMPTLY TOLD ME TO BRING IT IN RIGHT AWAY TO BE LOOKED AT. I DID HOWEVER A GOOGLE SEARCH FOR MAZDA CX9 BRAKE ISSUE AND NOTICE THERE ARE 7 OTHER INCIDENTS WITH CX-9 BRAKE ISSUE EXPLAINING THE SAME SY…
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I NOTICED A HISSING SOUND WHEN PRESSING THE BRAKE PEDAL TODAY 3/20/2014 AND LOSS OF BRAKE PRESSURE. I NOTIFIED THE DEALER AND THEY PROMPTLY TOLD ME TO BRING IT IN RIGHT AWAY TO BE LOOKED AT. I DID HOWEVER A GOOGLE SEARCH FOR MAZDA CX9 BRAKE ISSUE AND NOTICE THERE ARE 7 OTHER INCIDENTS WITH CX-9 BRAKE ISSUE EXPLAINING THE SAME SYMPTOMS. "THE NHTSA COMPLAINTS SAY THAT THE PROBLEM CAUSES A HARD PEDAL, INCREASED BRAKING EFFORT AND REDUCED BRAKING EFFECTIVENESS. SOME COMPLAINTS ALLEGE THAT THEY HEAR A HISSING NOISE DURING BRAKING SIMILAR TO THE SOUND OF AIR LEAVING THE TIRES. NO INJURIES OR CRASHES HAVE BEEN REPORTED." I SHOWED THE DEALERSHIP THE GOOGLE SEARCH FROM THE INTERNET...PERTAINING TO 2010 CX-9 BRAKE ISSUES. MAZDA DEALER SOUNDS LIKE THEY ARE AWARE OF THE PROBLEM...AND SHOULD BE TAKING PROACTIVE CORRECTIVE MEASURES TO FIX THIS PROBLEM. *TR
NHTSA ODI #10573705
25,500 miles · Mar 3, 2014
EngineService Brakes
SEVERAL WEEKS AGO THE BRAKES STARTED MAKING A HISSING NOISE WHEN I WOULD DEPRESS THE BRAKE. THEN, THE CAR WOULD BRAKE AS USUAL UNTIL I NEEDED TO COME TO A COMPLETE STOP, WHEREAS THEN I WOULD NEED TO DEPRESS THE BRAKE VERY HARD TO MAKE THE CAR STOP, WHICH THEN IT WOULD STOP VERY SUDDENLY. THE MOST RECENT EVENT OCCURRED WHEN MY HU…
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SEVERAL WEEKS AGO THE BRAKES STARTED MAKING A HISSING NOISE WHEN I WOULD DEPRESS THE BRAKE. THEN, THE CAR WOULD BRAKE AS USUAL UNTIL I NEEDED TO COME TO A COMPLETE STOP, WHEREAS THEN I WOULD NEED TO DEPRESS THE BRAKE VERY HARD TO MAKE THE CAR STOP, WHICH THEN IT WOULD STOP VERY SUDDENLY. THE MOST RECENT EVENT OCCURRED WHEN MY HUSBAND WAS DRIVING DOWN THE ROAD ABOUT 45 MPH AND HAD HIT THE BRAKES AND THE ENGINE COMPLETELY SHUT OFF, ALL THE WARNING LIGHTS CAME ON AND IT WAS VERY DIFFICULT FOR MY HUSBAND TO PULL THE CAR OVER AND COME TO A STOP. THE ENGINE DID START BACK UP AND WE DROVE ALL THE WAY HOME AND HAVE NOT SINCE DRIVEN THE VEHICLE. *TR
NHTSA ODI #10566803
50,100 miles · Feb 24, 2014
Service Brakes
VEHICLE MAKES A HISSING SOUND (HEARD INSIDE THE VEHICLE) WHEN DEPRESSING THE BRAKE PEDAL. SOUNDS LIKE AN AIR LEAK. OCCASIONALLY THE PEDAL WILL GO HARD AS IF POWER ASSISTED BRAKING FEATURE IS LOST. VERY DANGEROUS SITUATION! VEHICLE TAKEN TO DEALER TODAY (02/24/14) AND WAS TOLD REPLACEMENT BRAKE BOOSTER IS REQUIRED. *TR
NHTSA ODI #10565646
38,000 miles · Dec 26, 2013
Service BrakesCrash
DRIVING IN SNOWY CONDITIONS; BRAKES FAILED TWICE WHEN I APPLIED LIGHT PRESSURE. FIRST TIME, THE BRAKES SHUDDERED, BUT THE CAR FINALLY STOPPED AFTER I APPLIED HARD PRESSURE; THE SECOND TIME IT HAPPENED, THE BRAKES SHUDDERED, AND NOTHING HAPPENED WHEN I FIRST APPLIED HARDER PRESSURE. EVENTUALLY THE CAR SKIDDED, BUT IT WAS TOO LATE…
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DRIVING IN SNOWY CONDITIONS; BRAKES FAILED TWICE WHEN I APPLIED LIGHT PRESSURE. FIRST TIME, THE BRAKES SHUDDERED, BUT THE CAR FINALLY STOPPED AFTER I APPLIED HARD PRESSURE; THE SECOND TIME IT HAPPENED, THE BRAKES SHUDDERED, AND NOTHING HAPPENED WHEN I FIRST APPLIED HARDER PRESSURE. EVENTUALLY THE CAR SKIDDED, BUT IT WAS TOO LATE. *TR
NHTSA ODI #10557358
75,000 miles · Dec 13, 2013
Service Brakes
DRIVING, HAD MY 2 YEAR OLD SON AND 7 YEAR OLD DAUGHTER IN THE CAR, A CAR SLOWED IN FRONT OF ME AND WHEN I PUSHED THE BRAKES THEY FELT HARD AS A ROCK AND THE CAR WOULD NOT STOP. SLOWED DOWN AT A VERY SLOW PACE WHILE PUSHING ON THE BRAKES AS HARD AS I COULD. I PRACTICALLY HAD TO STAND UP. I WAS HORRIFIED. MY BRAKES CONTINUE TO DO …
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DRIVING, HAD MY 2 YEAR OLD SON AND 7 YEAR OLD DAUGHTER IN THE CAR, A CAR SLOWED IN FRONT OF ME AND WHEN I PUSHED THE BRAKES THEY FELT HARD AS A ROCK AND THE CAR WOULD NOT STOP. SLOWED DOWN AT A VERY SLOW PACE WHILE PUSHING ON THE BRAKES AS HARD AS I COULD. I PRACTICALLY HAD TO STAND UP. I WAS HORRIFIED. MY BRAKES CONTINUE TO DO THIS. SOMETIMES THEY FEEL VERY HARD AND SOMETIMES THEY PUSH DOWN BUT SOUND AS IF AIR IS LEAKING OUT. I AM TAKING THE CAR IN TOMORROW TO SEE WHAT IS GOING ON. OBVIOUSLY SOMETHING IS WRONG, BUT THERE ARE NO WARNING LIGHTS ON OR ANYTHING. I LOOKED FOR RECALLS ON THE BRAKES AND HAVE FOUND NOTHING. I HAVE FOUND OTHERS HAVE HAD THE SAME ISSUE AND HOPE THAT THERE IS A RECALL BEFORE SOMEONE GETS HURT OR EVEN KILLED. THIS WAS A VERY SCARY EXPERIENCE.....MY CHILDREN AND I WERE FORTUNATE I WAS ABLE TO GO INTO THE OTHER LANE WITHOUT CRASHING. *TR
NHTSA ODI #10556021
Official recalls
6Oct 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.
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.
Jan 9, 2018
Mazda North American Operations (Mazda) is recalling certain 2013 Mazda6 and 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 2010 Mazda6, CX-7 and CX-9 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 covered in Zone A or Zone B, Mazda is recalling certain 2009 Mazda6, CX-7, and 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 March 2, 2018. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 1317F.
Jun 29, 2017
Mazda North America Operations (Mazda) is recalling certain 2009-2011 Mazda6, and 2007-2011 CX-7 and CX-9 vehicles. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the front air bags, 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 passenger frontal air bag inflator with an alternate inflator, free of charge. The recall began on August 30, 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 16V356 and all vehicles that were not remedied under that campaign are now covered by this one.
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.
Feb 19, 2010
MAZDA IS RECALLING CERTAIN MODEL YEAR 2010 CX-9 VEHICLES EQUIPPED WITH ELECTRICALLY HEATED FRONT SEATS. THERE IS A POSSIBILITY UNDER EXTREMELY COLD CONDITIONS FOR THE SEAT HEATER CONTROL CIRCUIT TO OVERHEAT AND FAIL DUE TO INSUFFICIENT ELECTRICAL GROUNDING.
Consequence & remedy
Consequence: THIS MAY CAUSE BURN DAMAGE OF THE SEAT CUSHION SURFACE, OR A RISK OF SMOKE/FIRE.
Remedy: DEALERS WILL INSTALL AN ADDITIONAL GROUND HARNESS ON THE SEAT HEATER CONTROL SYSTEM. THE SEAT HEATER CONTROL CIRCUIT WILL BE REPLACED IF NECESSARY AND/OR THE SEAT WILL BE REPAIRED FREE OF CHARGE. THE SAFETY RECALL BEGAN ON MARCH 9, 2010. OWNERS MAY CONTACT MAZDA AT 1-800-222-5500.
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
3PE19006 · 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
PE14005 · Brake Booster Failure
Opened Feb 10, 2014 · Closed Jun 26, 2014
Status: closed (inferred from source dates) · Service Brakes, Hydraulic:power Assist
In March 2014, Mazda Motor Corporation (Mazda) initiated Special Service Program SSP93 to extend the warranty coverage for a specific brake booster fault condition on model year (MY) 2007-2013 Mazda CX-9 vehicles.According to Mazda's dealer communication for SSP93, the subject vehicles may exhibit a condition were the brake pedal is harder than usual to depress. Complainants report hearing air leakage (hissing) from the driver-side foot area during braking.The Mazda program extends the warranty coverage for repairing this condition to unlimited time and mileage for repairs performed between March 31, 2014 and March 31, 2015 and to 7 years or 90,000 miles for repairs performed after March 31, 2015.In its response to the Office of Defects Investigation's (ODI) information request letter for PE14-005, Mazda identified a problem with booster diaphragms developing tears near the outer seal/circumference that can result in noise and degraded booster performance as the tears grow in length (Figures 1-3).The tears allow leakage from the ambient to the vacuum sides of the diaphragm that reduces the differential pressure across the diaphragm and produces a hissing noise after the tears have reached 10-12 mm in length.The problem was caused by wear of the mold used for the diaphragm forming process, which resulted in increased thickness and stress in the bending area of the diaphragm.Continuous operation in environments with high ambient temperatures accelerates the hardening of the diaphragm material, further increasing the stress in the bending area and contributing to tear initiation and propagation rate.Analysis of failure data indicates that the tool wear condition affected vehicles produced after June 2010 and operated in hot states (Figures 4-6).In February 2013 the supplier introduced a new mold and changes to the diaphragm thickness monitoring process to correct the condition in production vehicles.Analysis of complaint and supplier test data indicates that the diaphragm tear condition is a progressive failure that develops slowly over time.Smaller tears have little effect on system performance.As the tear continues to grow, the effects become more evident.The hard pedal and increased effort are experienced during initial pedal application, but are diminished as the pedal is pressed further by the driver and the tear is partially sealed by the outer wall of the booster.This change from a hard to a soft pedal feel is described by some drivers as a spongy pedal.For tear lengths that were observed in warranty return parts, testing demonstrated that most booster performance can be recovered with increasing pedal apply speed and apply force.None of the tears measured in return parts grew large enough to cause a complete loss of brake booster function. The booster diaphragm tear condition results in partial reduction in booster function that progresses gradually over time with audible and pedal feel symptoms available to the driver.The condition does not result in a sudden loss of power braking assist.The effects are evident during initial pedal apply and are reduced by increased pedal apply force and rate.ODI has not identified any accidents associated with the booster diaphragm tear condition in the subject vehicles.Accordingly, this investigation is closed.The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist.The agency will continue to monitor complaints and other information relating to the alleged defect and take further action in the future if warranted.VOQs (24) associated with this investigation:10482005, 10486941, 1048793
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