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2014 Mazda CX-9

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2014 Mazda CX-9 do not stand out strongly from the model-year median of 61.

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How this year compares

Owner complaints by model year

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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

28 reports with mileage · 26 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.

  • Engine. Review the 19 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Service Brakes. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Power Train. Review the 7 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports1 fire reports0 injury reports

What owners actually said

54 reports
73,000 miles · Mar 2, 2019
Engine

THE ENGINE SPUTTERED AND STOPPED WITHOUT WARNING WHILE DRIVING. IT TURNED OUT THE WATER PUMP WENT OUT AND SPILLED WATER INTERNALLY IN THE ENGINE. THE CAR HAS 73,000 MILES ON IT AND IT APPEARS THAT THIS HAS BEEN HAPPENING TO OTHER OWNERS OF THIS VEHICLE ROUTINELY, AND MAZDA HAS KEPT THIS DESIGN FLAW AND SAFETY CONCERN A SECRET. I…

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THE ENGINE SPUTTERED AND STOPPED WITHOUT WARNING WHILE DRIVING. IT TURNED OUT THE WATER PUMP WENT OUT AND SPILLED WATER INTERNALLY IN THE ENGINE. THE CAR HAS 73,000 MILES ON IT AND IT APPEARS THAT THIS HAS BEEN HAPPENING TO OTHER OWNERS OF THIS VEHICLE ROUTINELY, AND MAZDA HAS KEPT THIS DESIGN FLAW AND SAFETY CONCERN A SECRET. IT IS COSTING OVER $2,200 TO REPAIR, AND I BELIEVE THAT MAZDA SHOULD BE HELD ACCOUNTABLE FOR IT. THANK YOU. (XXXX) PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

NHTSA ODI #11183665

Mileage unknown · Dec 6, 2018
Air Bags

TL* TAKATA RECALL. THE CONTACT OWNS A 2014 MAZDA CX-9. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 18V717000 (AIR BAGS) EXCEEDED A REASONABLE AMOUNT OF TIME FOR REPAIR. THE CONTACT RECEIVED THE RECALL LETTER IN OCTOBER OF 2018. THE DEALER (NAPLETON'S ARLINGTON MAZDA, 1555 E RAND RD, ARLINGTON HEIGHTS, IL 60004) STATED THAT TH…

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TL* TAKATA RECALL. THE CONTACT OWNS A 2014 MAZDA CX-9. THE CONTACT STATED THAT NHTSA CAMPAIGN NUMBER: 18V717000 (AIR BAGS) EXCEEDED A REASONABLE AMOUNT OF TIME FOR REPAIR. THE CONTACT RECEIVED THE RECALL LETTER IN OCTOBER OF 2018. THE DEALER (NAPLETON'S ARLINGTON MAZDA, 1555 E RAND RD, ARLINGTON HEIGHTS, IL 60004) STATED THAT THE PART WAS NOT AVAILABLE FOR THE REPAIR. THE MANUFACTURER HAD NOT BEEN CONTACTED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT. *TT CONSUMER STATED REPAIR COMPLETED.*JB

NHTSA ODI #11156638

48,000 miles · Nov 26, 2018
Service Brakes

VEHICLE HAS 57000 MILES HAD TO PUT INTWO MASTER CYLINDERS IN TWO YEARS. AUTO WAS IN MOTION AND COMPLETE LOSS OF BRAKES.

NHTSA ODI #11154094

Mileage unknown · Nov 26, 2018
EnginePower Train

TL* THE CONTACT OWNS A 2014 MAZDA CX-9. WHILE DRIVING 45 MPH, THE CONTACT HEARD AN ABNORMAL NOISE AND DETECTED A STRONG ODOR INSIDE THE VEHICLE. THE VEHICLE WAS COASTED TO THE SIDE OF THE ROAD AND TAKEN TO AN INDEPENDENT MECHANIC WHO FOUND AN INTERNAL FRACTURE OF AN OIL LEAK. THE MECHANIC STATED THAT THE TRANSFER CASE MAY NEED T…

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TL* THE CONTACT OWNS A 2014 MAZDA CX-9. WHILE DRIVING 45 MPH, THE CONTACT HEARD AN ABNORMAL NOISE AND DETECTED A STRONG ODOR INSIDE THE VEHICLE. THE VEHICLE WAS COASTED TO THE SIDE OF THE ROAD AND TAKEN TO AN INDEPENDENT MECHANIC WHO FOUND AN INTERNAL FRACTURE OF AN OIL LEAK. THE MECHANIC STATED THAT THE TRANSFER CASE MAY NEED TO BE REPLACED. THE DEALER (QUIRK MAZDA, 111 MCGRATH HWY, QUINCY, MA 02169, (617) 773-8000) WAS CONTACTED AND INDICATED THAT THERE WAS NO RECALL CAMPAIGN TO PROVIDE A REMEDY FROM THE MANUFACTURER. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THE VEHICLE WAS NOT INCLUDED IN A RECALL. THE VIN AND FAILURE MILEAGE WERE NOT AVAILABLE.

NHTSA ODI #11153696

59,800 miles · Nov 24, 2018
Power Train

NOTICED BURNING SMELL COMING FROM UNDERSIDE OF VEHICLE AND OIL-LIKE SUBSTANCE ON FLOOR OF GARAGE AFTER DRIVING. TOOK TO THE DEALER AND WAS INFORMED THAT THE TRANSFER CASE FAILED AND WAS LEAKING FLUID ON EXHAUST SYSTEM. RESEARCH INDICATES THIS IS A KNOWN DESIGN ISSUE IN MULTIPLE YEAR MODELS OF MAZDA VEHICLES AND I FEEL DUE TO T…

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NOTICED BURNING SMELL COMING FROM UNDERSIDE OF VEHICLE AND OIL-LIKE SUBSTANCE ON FLOOR OF GARAGE AFTER DRIVING. TOOK TO THE DEALER AND WAS INFORMED THAT THE TRANSFER CASE FAILED AND WAS LEAKING FLUID ON EXHAUST SYSTEM. RESEARCH INDICATES THIS IS A KNOWN DESIGN ISSUE IN MULTIPLE YEAR MODELS OF MAZDA VEHICLES AND I FEEL DUE TO THE SIGNIFICANT FIRE RISK OF OIL/LUBRICANT DRIPPING ONTO THE EXHAUST SYSTEM, THIS SHOULD BE SUBJECT TO A RECALL.

NHTSA ODI #11153485

29,500 miles · Jul 24, 2018
Power TrainFire

WE WERE ON A CITY ROAD UPHILL AND DRIVING TO A FRIENDS HOME. OUR MAZDA CX-9 GRAND TOURING MADE A RATTLING NOISE, RELEASED A LOT OF WHITE SMOKE, AND LOST ACCELERATION. I IMMEDIATELY PULLED THE CAR ON THE SHOULDER AND A BY PASSER STOPPED HIS CAR ON OPPOSITE SHOULDER AND ANALYZED THE SITUATION AND SHOUTED MOVE YOUR FAMILY OUT AND …

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WE WERE ON A CITY ROAD UPHILL AND DRIVING TO A FRIENDS HOME. OUR MAZDA CX-9 GRAND TOURING MADE A RATTLING NOISE, RELEASED A LOT OF WHITE SMOKE, AND LOST ACCELERATION. I IMMEDIATELY PULLED THE CAR ON THE SHOULDER AND A BY PASSER STOPPED HIS CAR ON OPPOSITE SHOULDER AND ANALYZED THE SITUATION AND SHOUTED MOVE YOUR FAMILY OUT AND MOVE FROM THE CAR SINCE ITS ON FIRE UNDERNEATH. WE IMMEDIATELY MOVED OUT AND BY PASSER CALLED 911. ALL THE TIME WHILE WE WAITED AND FIRE DEPARTMENT ARRIVED THE CAR WAS DRIPPING FIRE.

NHTSA ODI #11113446

60,000 miles · Jul 5, 2018
Unknown Or Other

WHEN MAKING LEFT TURN STARTED HEARING A SQUEAL AND AIR CONDITIONER SHUT OFF THEN FLOOR BOARD ON FRONT PASSENGER SIDE STARTED FILLING WITH WATER AFTER LOOKING ONLINE, APPARENTLY MANY PEOPLE HAVE HAD THIS ISSUE WITH THEIR MAZDA CX9. IT IS CAUSED BY THE DRAIN TO YOUR AIR CONDITIONER GETTING CLOGGED MULTIPLE VIDEOS ARE ONLINE OF…

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WHEN MAKING LEFT TURN STARTED HEARING A SQUEAL AND AIR CONDITIONER SHUT OFF THEN FLOOR BOARD ON FRONT PASSENGER SIDE STARTED FILLING WITH WATER AFTER LOOKING ONLINE, APPARENTLY MANY PEOPLE HAVE HAD THIS ISSUE WITH THEIR MAZDA CX9. IT IS CAUSED BY THE DRAIN TO YOUR AIR CONDITIONER GETTING CLOGGED MULTIPLE VIDEOS ARE ONLINE OF HOW TO UNCLOG IT THIS SHOULD BE A CLUE TO MAZDA THAT THERE IS A DESIGN FLAW TOOK IT TO DEALER AND WAS TOLD IT WAS A MAINTENANCE ISSUE NO WHERE IN MY MAINTENANCE MANUAL DOES IT SAY TO GET AIR CONDITIONER DRAIN CLEANED COST 138 FOR THEM TO CLEAN IT OUT AND CAUSED SOME DAMAGE TO BLOWER MOTOR CALLED MAZDA AND OF COARSE GOT THE RUN AROUND ONLINE PEOPLE ARE SAYING THEY HAVE HAD TO TAKE THEIRS IN MULTIPLE TIMES TO GET UNCLOGGED. SOME HAVING TO PAY 300 EACH TIME THIS ISSUE NEEDS TO BE INVESTIGATED AND FIXED

NHTSA ODI #11109705

81,000 miles · Jun 21, 2018
Engine

I WAS SLOWLY APPROACHING A STOP LIGHT WHEN OUR 2014 MAZDA CX-9 STARTED HAVING VIBRATIONS, WHICH AT FIRST CAME FROM UNDERNEATH, BETWEEN THE DRIVER'S ROW AND THE 2ND ROW PASSENGER. IT IMMEDIATELY FELT AS IF THE CAR'S ENGINE WAS ABOUT TO FAIL. I MANAGED TO MAKE THAT RIGHT TURN, CAREFULLY STEPPING ON THE BRAKES, AND CROSSED A RAIL-R…

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I WAS SLOWLY APPROACHING A STOP LIGHT WHEN OUR 2014 MAZDA CX-9 STARTED HAVING VIBRATIONS, WHICH AT FIRST CAME FROM UNDERNEATH, BETWEEN THE DRIVER'S ROW AND THE 2ND ROW PASSENGER. IT IMMEDIATELY FELT AS IF THE CAR'S ENGINE WAS ABOUT TO FAIL. I MANAGED TO MAKE THAT RIGHT TURN, CAREFULLY STEPPING ON THE BRAKES, AND CROSSED A RAIL-ROAD CROSSING. THE CAR WAS RUNNING AT A SPEED OF 20 MPH. I SLOWED DOWN TO MAKE ANOTHER RIGHT TURN TOWARDS MY DESTINATION, THEN THE ENGINE ABRUPTLY DIED. THE BATTERY AND CHECK ENGINE LIGHTS SUDDENLY LIT UP ON THE DASHBOARD. FROM THE INTERSECTION'S STOP LIGHT TO THE LOCATION WHERE THE ENGINE FAILED, IT WAS A DISTANCE OF APPROXIMATELY 0.5 MILE. MY WIFE CAME AND PICKED UP OUR 3 CHILDREN FROM THE CORNER OF THE STREET. MY BROTHER-IN-LAW CAME TO MY LOCATION WITH JUMPER CABLES AND GAVE MY ENGINE'S BATTERY A JUMP-START. THE ENGINE STARTED BUT THE VIBRATIONS WERE STRONGER. THE CAR RAN FOR ANOTHER 0.3 MILE BEFORE IT DIED AGAIN. I HAD THE CAR TOWED TO THE MAZDA DEALERSHIP FROM WHERE I PURCHASED THE CAR. AFTER 1 DAY I WAS TOLD THAT THE INCIDENT WAS POSSIBLY DUE TO A BAD TANK OF GAS. ANOTHER DAY LATER, I WAS TOLD THAT SOMETHING ELSE WAS WRONG WITH THE ENGINE, AND THAT IT WAS UNRELATED TO THE EARLIER SUSPICION OF BAD GAS. AFTER 5 BUSINESS DAYS, I WAS TOLD THAT THE ENGINE'S CYLINDER 6 NEEDS A NEW CYLINDER HEAD. THE OTHER OPTION WAS A COMPLETE ENGINE OVERHAUL. THE CAR HAS NEVER BEEN IN AN ACCIDENT, AND HAS APPROXIMATELY 81,000 MILEAGE. THE ESTIMATED COST FOR REPAIRS WAS $5,834. THIS IS A VERY SERIOUS SAFETY ISSUE THAT WARRANTS AN INVESTIGATION. HAD THE CAR EXPERIENCED ENGINE FAILURE ON A BUSY INTERSTATE, MY FAMILY AND OTHERS COULD'VE BEEN SERIOUSLY INJURED OR EVEN KILLED.

NHTSA ODI #11102971

46,000 miles · Dec 15, 2017
Suspension

TL* THE CONTACT OWNS A 2014 MAZDA CX-9. WHILE DRIVING VARIOUS SPEEDS, THE BRAKE PEDAL WAS DEPRESSED AND A BUMPING NOISE WAS HEARD FROM THE FRONT SUSPENSION. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE BALL JOINT AND LOWER CONTROL ARM CORRODED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REP…

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TL* THE CONTACT OWNS A 2014 MAZDA CX-9. WHILE DRIVING VARIOUS SPEEDS, THE BRAKE PEDAL WAS DEPRESSED AND A BUMPING NOISE WAS HEARD FROM THE FRONT SUSPENSION. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE BALL JOINT AND LOWER CONTROL ARM CORRODED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VEHICLE WAS LATER TAKEN TO NEIL HUFFMAN MAZDA (4926 DIXIE HWY @102, LOUISVILLE, KY 40216, PHONE: (502) 835-8745), BUT WAS NOT DIAGNOSED DUE TO THE DIAGNOSTIC FEES. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THERE WERE NO OPEN RECALLS. THE APPROXIMATE FAILURE MILEAGE WAS 46,000.

NHTSA ODI #11054878

Mileage unknown · Nov 5, 2017
Air Bags

TAKATA RECALL MY COMPLAINT IS THAT I HAVE RECEIVED SEVERAL NOTICES REFERENCING THE TAKATA AIRBAG PROBLEM. MAZDA HAS STILL NOT INITIATED A RECALL. I HAVE SUPPLIED MY EMAIL ADDRESS TO THE TKRESTUCTURING.COM/PPIC IN REFERENCE TO THE CHAPTER 11 CASE NO. 17-11375 (BLS). MY COMPLAINT SPECIFICALLY IS AGAINST MAZDA AND WHY THEY …

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TAKATA RECALL MY COMPLAINT IS THAT I HAVE RECEIVED SEVERAL NOTICES REFERENCING THE TAKATA AIRBAG PROBLEM. MAZDA HAS STILL NOT INITIATED A RECALL. I HAVE SUPPLIED MY EMAIL ADDRESS TO THE TKRESTUCTURING.COM/PPIC IN REFERENCE TO THE CHAPTER 11 CASE NO. 17-11375 (BLS). MY COMPLAINT SPECIFICALLY IS AGAINST MAZDA AND WHY THEY ARE DRAGGING THEIR FEET IN INITIATING RECALLS FOR THE AFFECTED AIRBAGS. WE HAVE NOT HAD AN ISSUE YET, BUT DO FEAR WHAT COULD HAPPEN IF A VEHICLE CRASH WOULD DEPLOY THE AIRBAGS. INJURIES AND EVEN DEATH COULD HAPPEN. MAZDA NEEDS TO BEGIN ISSUANCE OF THE RECALL NOTICES ASAP. I AM USING TODAY'S DATE BELOW SINCE A DATE IS REQUIRED TO CONTINUE.

NHTSA ODI #11043404

Official recalls

3

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.

16V203000 · Steering

Apr 11, 2016

Mazda North American Operations (Mazda) is recalling certain model year 2016 CX-3 vehicles manufactured June 1, 2015, to December 2, 2015, 2013-2014 Mazda2 vehicles manufactured July 3, 2013, to August 8, 2014, 2014-2016 CX-5 vehicles manufactured January 19, 2013, to December 2, 2015, and 2013-2015 CX-9 vehicles manufactured December 6, 2012, to July 31, 2015. The lower mounting nuts and bolts that attach the front strut assembly to the steering knuckle may loosen, allowing the steering knuckle to separate.

Consequence & remedy

Consequence: If the steering knuckle separates from the strut assembly, it can cause a loss of steering control, increasing the risk of a crash.

Remedy: Mazda will notify owners, and dealers will inspect the lower mounting nuts and bolts that secure the front strut assembly to the steering knuckle. If the bolts are loose, they will be replaced and then correctly tightened, free of charge. The recall is expected to begin May 20, 2016. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 9316D.

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

1

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