NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
59 reports45,000 miles · Feb 14, 2014
Service Brakes
WHILE DRIVING IN STOP AND GO TRAFFIC/PARKING LOTS, ETC., I HAD THREE SEPARATE INCIDENCES IN WHICH WHEN I DEPRESSED THE BRAKE PEDAL I FELT NO RESISTANCE AND THERE WAS NO DECELERATION. THE BRAKE EITHER FINALLY APPLIED ITSELF AFTER I GOT THE PEDAL ALMOST TO THE FLOOR OR I LET OFF THE BRAKE AND REAPPLIED THE PEDAL AND IT FUNCTIONED…
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WHILE DRIVING IN STOP AND GO TRAFFIC/PARKING LOTS, ETC., I HAD THREE SEPARATE INCIDENCES IN WHICH WHEN I DEPRESSED THE BRAKE PEDAL I FELT NO RESISTANCE AND THERE WAS NO DECELERATION. THE BRAKE EITHER FINALLY APPLIED ITSELF AFTER I GOT THE PEDAL ALMOST TO THE FLOOR OR I LET OFF THE BRAKE AND REAPPLIED THE PEDAL AND IT FUNCTIONED NORMALLY THE SECOND TIME. IT DID NOT RESULT IN ANY ACCIDENTS BUT LEFT ME UNSURE ABOUT THE SAFETY OF THE VEHICLE. *TR
NHTSA ODI #10564318
45,235 miles · Jul 22, 2013
Service Brakes
BRAKE MASTER CYLINDER LEAKED FLUID INTO THE BRAKE BOOSTER CAUSING LOSS OF BOOST RESULTING IN EXTREMELY REDUCED BRAKING FUNCTION. *TR
NHTSA ODI #10526193
38,000 miles · Jul 17, 2013
Service Brakes
TL* THE CONTACT OWNS A 2009 MAZDA CX-9. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH, EXCESSIVE FORCE HAD TO BE APPLIED TO THE BRAKE PEDAL IN ORDER TO BRING THE VEHICLE TO STOP. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE THE CONTACT WAS INFORMED THAT THERE WAS FLUID LEAKING FROM THE MASTER CYLINDER TO THE PO…
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TL* THE CONTACT OWNS A 2009 MAZDA CX-9. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH, EXCESSIVE FORCE HAD TO BE APPLIED TO THE BRAKE PEDAL IN ORDER TO BRING THE VEHICLE TO STOP. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE THE CONTACT WAS INFORMED THAT THERE WAS FLUID LEAKING FROM THE MASTER CYLINDER TO THE POWER BOOSTER. THE CONTACT WAS ALSO INFORMED THAT THE POWER BOOSTER NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE AND CURRENT MILEAGE WAS 38,000. *TR
NHTSA ODI #10525358
65,000 miles · Jun 5, 2013
Exterior Lighting
THE LOW BEAM HEADLAMP CONNECTOR ON THE PASSENGER SIDE MELTED INSIDE THE HEADLIGHT CAUSING THE LIGHT TO FAIL. NOW THE DRIVER SIDE HAS DONE THE EXACT SAME THING CAUSING THE LIGHT TO FAIL. THIS COULD CREATE A SERIOUS INJURY AND REQUIRES THE REPLACEMENT OF A DEFECTIVE LIGHT CONNECTOR. *TR
NHTSA ODI #10515150
43,000 miles · May 21, 2013
Service Brakes
2009 MAZDA CX-9 - ON 5/19/2013 THE BRAKES WERE FINE. THE MORNING OF THE 20TH MY WIFE RETURNED HOME FROM WORK, AND SAID SHE HEARD A HISSING NOISE FROM THE BRAKES. I DROVE THE CAR TO WORK LATER THAT DAY AND NOTICED THE HISSING SOUND. I ALSO NOTICED THAT THE BRAKE PEDAL FELT NORMAL AT FIRST THEN BEGAN TO GET HARD AND THE CAR COULD …
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2009 MAZDA CX-9 - ON 5/19/2013 THE BRAKES WERE FINE. THE MORNING OF THE 20TH MY WIFE RETURNED HOME FROM WORK, AND SAID SHE HEARD A HISSING NOISE FROM THE BRAKES. I DROVE THE CAR TO WORK LATER THAT DAY AND NOTICED THE HISSING SOUND. I ALSO NOTICED THAT THE BRAKE PEDAL FELT NORMAL AT FIRST THEN BEGAN TO GET HARD AND THE CAR COULD BARLEY STOP. *TR
NHTSA ODI #10512950
56,000 miles · Nov 19, 2012
Steering
TL* THE CONTACT OWNS A 2009 CX-9. THE CONTACT STATED THAT WHILE TRAVELING 40 MPH, THE VEHICLE BEGAN TO SHAKE AND VEER TO THE LEFT ABNORMALLY. THE VEHICLE SHORTLY BEGAN TO OPERATE NORMALLY. THE VEHICLE WAS ABLE TO BE DRIVEN TO THE CONTACT'S RESIDENCE AND WAS LATER TAKEN TO THE DEALER WHERE THE FAILURE COULD NOT BE DUPLICATED. THE…
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TL* THE CONTACT OWNS A 2009 CX-9. THE CONTACT STATED THAT WHILE TRAVELING 40 MPH, THE VEHICLE BEGAN TO SHAKE AND VEER TO THE LEFT ABNORMALLY. THE VEHICLE SHORTLY BEGAN TO OPERATE NORMALLY. THE VEHICLE WAS ABLE TO BE DRIVEN TO THE CONTACT'S RESIDENCE AND WAS LATER TAKEN TO THE DEALER WHERE THE FAILURE COULD NOT BE DUPLICATED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS CONTACTED ABOUT THE ISSUE. THE FAILURE AND CURRENT MILEAGES WERE 56,000.
NHTSA ODI #10485131
30 miles · Jul 18, 2012
Exterior Lighting
RE: MAZDA CORPORATE FILE NUMBER [XXX] I WANT TO MAKE A COMPLAINT THAT MAZDA USA AND FREMONT MAZDA DEALER DECLINED A VALID DEFECT REAR LED TAIL LIGHTS WHEN I EXERCISE IT THROUGH MAZDA FACTORY NEW CAR WARRANTY. I HAVE ALREADY CONTACT MAZDA CORPORATE FOR THIS DEFECT PROBLEM AND WORKED THROUGH THE LOCAL MAZDA DEALER (FREMONT MAZDA)…
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RE: MAZDA CORPORATE FILE NUMBER [XXX] I WANT TO MAKE A COMPLAINT THAT MAZDA USA AND FREMONT MAZDA DEALER DECLINED A VALID DEFECT REAR LED TAIL LIGHTS WHEN I EXERCISE IT THROUGH MAZDA FACTORY NEW CAR WARRANTY. I HAVE ALREADY CONTACT MAZDA CORPORATE FOR THIS DEFECT PROBLEM AND WORKED THROUGH THE LOCAL MAZDA DEALER (FREMONT MAZDA) TO DIAGNOSE THE PROBLEM. FREMONT MAZDA DISHONESTLY DECLINED THE VALID DEFECT PROBLEM AND WHEN I LATER TRYING TO SHOW THE DEFECT EVIDENCE (PICTURES) TO MAZDA USA, MAZDA USA CORPORATE CHOSE TO IGNORE ME AND CONCURRED WITH THE MAZDA DEALER'S DIAGNOSIS. EACH OF 2009 MAZDA CX-9 LED TAIL LIGHT HAS 12 LED PIXELS. EACH LED TAIL LIGHT HAS A FEW CROOKED LED PIXELS ARE DIM AND AIMED AT THE SKY AND GROUND BUT NOT TO THE TRAFFIC BEHIND. A DRIVER DIRECTLY BEHIND MY CX-9 ONLY CAN SEE ABOUT 2/3 LED PIXELS (8 OUT OF 12) AND THE OTHER LED PIXELS ARE DARK. THE CROOKED LED ARE LIT BUT YOU CAN ONLY SEE THAT DIRECTLY LOOKING DOWN FROM TOP OF THE CAR OR VICE VERSA. I BELIEVE THIS LED TAIL LIGHTS DEFECT IS A VALID SAFETY CONCERN. LED HAS A DISCRETE AND NARROW LIGHT PATTERN COMPARES TO THE INCANDESCENT BULBS. A GOOD SET OF LED TAIL LIGHT SHOULD HAVE ALL ITS PIXELS AIMED TO THE TRAFFIC BEHIND, NOT TO THE SKY AND GROUND. HOWEVER, MAZDA (BOTH THE DEALER AND USA CORPORATE) REFUSED TO TAKE MY CONCERN SERIOUSLY AND REFUSED TO WORK WITH THEIR CONSUMERS. I REASONABLY DOUBT THEY STRATEGICALLY WORK TOGETHER TO REJECT A VALID SAFETY CONCERN THAT MIGHT POTENTIALLY CAUSE MAZDA USA MORE TROUBLE DOWN THE ROAD. POSSIBLY THEY THINK I WILL WALK AWAY QUIETLY JUST BY REJECTING MY REQUEST. I AM MORE THAN HAPPY TO PROVIDE THE PICTURES OF THE BAD LED PIXELS UPON REQUEST. I AM ALSO HOPING IF A THIRD PARTY PROFESSIONAL SPECIALIST CAN TAKE A LOOK OF THE BAD TAIL LIGHTS SO A SOUND JUDGEMENT CAN BE MADE. I WANT A SET OF NOT DEFECTED NEW LED TAIL LIGHTS. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).*TR
NHTSA ODI #10466432
26,040 miles · Dec 13, 2010
Tires
OWN A 2009 MAZDA CX-9 EQUIPPED WITH BRIDGESTONE DUELER H/L 400, SIZE 245/50/R20. AT 26040 MILES TPMS LOW TIRE PRESSURE INDICATOR LIGHT ILLUMINATED. BEGAN TO UNSCREW VALVE STEM CAP ON PASSENGER SIDE REAR TIRE AND IT CRACKED IN HALF, SENSOR CAME OUT, AND ALL AIR IN TIRE CAME OUT. CONTACTED MAZDA ROADSIDE ASSISTANCE WHICH CAME OUT…
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OWN A 2009 MAZDA CX-9 EQUIPPED WITH BRIDGESTONE DUELER H/L 400, SIZE 245/50/R20. AT 26040 MILES TPMS LOW TIRE PRESSURE INDICATOR LIGHT ILLUMINATED. BEGAN TO UNSCREW VALVE STEM CAP ON PASSENGER SIDE REAR TIRE AND IT CRACKED IN HALF, SENSOR CAME OUT, AND ALL AIR IN TIRE CAME OUT. CONTACTED MAZDA ROADSIDE ASSISTANCE WHICH CAME OUT AND REMOVED FLAT TIRE AND PUT ON SPARE. WAS TOLD BY MAZDA THAT VALVE STEM FIX WAS MY RESPONSIBILITY, TOOK FLAT TIRE TO NEARBY INDEPENDENT SHOP WHERE NEW VALVE STEM WAS INSTALLED WITH SENSOR AT COST OF $135. CONTACTED MAZDA CUSTOMER ASSISTANCE AND WAS TOLD I SHOULD HAVE TAKEN TIRE T MAZDA DEALERSHIP. *TR
NHTSA ODI #10370369
24,500 miles · Mar 13, 2010
Vehicle Speed Control
THE TACHOMETER OF THE CAR STICKS IN HIGH REVS (1500-2500),ENGINE ON, CAR IN NEUTRAL, FOOT OFF THE GAS PEDAL, IF THE CAR IS MOVING OVER 20-25MPH (EITHER BY FREE FALLING A HILL OR BEING PULLED) THE TACHOMETER VARIES THE RPM READING TO MATCH SPEED JUST AS IF THE CAR WOULD BE IN 'D' POSITION. I THINK THE ECU HAS A GLITCH OF SOME …
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THE TACHOMETER OF THE CAR STICKS IN HIGH REVS (1500-2500),ENGINE ON, CAR IN NEUTRAL, FOOT OFF THE GAS PEDAL, IF THE CAR IS MOVING OVER 20-25MPH (EITHER BY FREE FALLING A HILL OR BEING PULLED) THE TACHOMETER VARIES THE RPM READING TO MATCH SPEED JUST AS IF THE CAR WOULD BE IN 'D' POSITION. I THINK THE ECU HAS A GLITCH OF SOME SORT THAT IGNORES THE GAS PEDAL AND THE SHIFT POSITION IF THE CAR IS MOVING. TAKEN TO THE DEALERSHIP AND THEY SAID CAR IS WORKING AS DESIGNED, THAT THE CAR WILL KEEP RPMS TO MATCH SPEED IN TO AVOID A ENGINE SLOWDOWN OR SOMETHING SIMILAR. MY CONCERN IS THAT THE ECU SHOULD BEHAVE AS EXPECTED SO SHOULD THE TACHOMETER READ 600-800 RPM WHEN IDLING, REGARDLESS OF THE SPEED OF THE CAR IF THE TRANSMISSION IS IN NEUTRAL, IF NOT AT ANY TIME THE ECU MAY DECIDE IT SHOULD REV UP THE ENGINE IF THE SPEED SENSOR GOES BAD. *TR
NHTSA ODI #10319475
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.
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.
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.
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 23, 2009
MAZDA IS RECALLING 30,600 MY 2007-2009 CX9 VEHICLES EQUIPPED WITH POWER ADJUSTABLE SEAT WITH POSITION MEMORY FUNCTION. THE SEAT HARNESS ROUTED UNDERNEATH THE SEAT CUSHION MAY INTERFERE WITH THE FRONT COVER BRACKET WHICH IS ATTACHED ON THE FRONT SIDE OF THE SEAT CUSHION. DUE TO THIS THE COVERING OF THE SEAT HARNESS MAY BE DAMAGED, THE CORE WIRE OF THE HARNESS MAY TOUCH WITH THE BRACKET AND RESULT IN SHORT CIRCUIT.
Consequence & remedy
Consequence: DRIVERS WILL EXPERIENCE CERTAIN FUNCTIONS THAT ARE UNCONTROLLABLE WHICH WILL CAUSE SERIOUS DIFFICULTIES IN DRIVING INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL INSPECT THE SEAT HARNESS AND FASTEN THE SEAT FRAME WITH A CABLE TIE. THE HARNESS COVERING WILL BE REPAIR FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN ON OR BEFORE MARCH 16, 2009. 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
1PE15022 · 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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