Owners have filed 209 complaints
about the 2011 Mazda CX-9 with NHTSA between 2011 and 2026.
The largest single group is the brakes.
Across this model's run it ranks 4 of 17 worst.
The letter says how bad. This says what kind — whether this year drew
an unusual number of complaints, unusually dangerous
ones, or failures that arrived unusually early.
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 97
Against the median year of the Mazda CX-9. 50 means typical for this
model; 100 means roughly double.
Severity — 40
7.7% of these complaints
involved a crash, fire, injury or death, against a national rate of
9.7%.
Early failure — 20
12% of failures with a mileage on record happened under
36,000 miles, against a national rate of
29%.
Odometer readings owners gave when they filed. About half of all
complaints include one.
Under 1,000 miles
42.4%
1,000 – 9,999 miles
10.6%
10,000 – 24,999 miles
63.6%
25,000 – 49,999 miles
2414.4%
50,000 – 74,999 miles
4828.7%
75,000 – 99,999 miles
3319.8%
100,000 – 149,999 miles
4627.5%
150,000+ miles
53.0%
NHTSA crash tests
The agency crash-tested this model year itself. These are its own
photographs and star ratings.
Configuration
Overall
Front
Side
Rollover
2011 Mazda CX-9 SUV AWD
—
—
—
14.3% risk
2011 Mazda CX-9 SUV FWD
—
—
—
15.1% risk
When owners complained
A spike years after the car went on sale usually means a part wearing
out on schedule across the whole fleet — the kind of pattern no single
owner can see from inside their own car.
May 2011peak 8Jun 2026
NHTSA investigations into the 2011 Mazda CX-9
An investigation is the step before a recall: the agency has seen enough
complaints to look into a pattern itself. An open one means it thinks
something may be wrong and nothing has been fixed yet.
PE19006Opened 2 May 2019Closed 15 Jan 2021AIR BAGS
Inadvertent Curtain Air Bag Deployment
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 i...
PE15022Opened 9 Jun 2015Closed 20 Aug 2015SUSPENSION:FRONT:CONTROL ARM:LOWER BALL JOINT
Lower ball joint separation
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 involve...
PE14005Opened 10 Feb 2014Closed 26 Jun 2014SERVICE BRAKES, HYDRAULIC:POWER ASSIST
Brake Booster Failure
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 Ma...
Recalls on the 2011 Mazda CX-9
A complaint is one owner's allegation. A recall is the point at which
the manufacturer or a regulator agreed the defect is real and dangerous
enough to fix for free — however old the car is.
United States — NHTSA
19V782000
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
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.
Risk: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
18V717000
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
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 cer
Risk: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
17V429000
AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE
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.
Risk: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.
15V451000
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.
Risk: 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.
Canada — Transport Canada
Canada runs its own recall programme, and its campaigns do not
always mirror the American ones.
Recall 201858523,966 units in Canada
Airbag
On certain vehicles, long-term exposure to high absolute humidity and temperature, combined with high temperature cycling, could eventually degrade the propellant contained in the passenger frontal airbag. This could cause the airbag to deploy with more force than normal. As a result, if the vehicle were involved in a collision that warrants airbag deployment, fragments could be propelled toward vehicle occupants, and the airbag assembly could be damaged, preventing proper function. These issues could increase the risk of injury. Correction: Dealers will replace the passenger frontal airbag inflator. Note: Canadian climate results in the propellant degrading slowly. The recall is being conducted as a precaution to address future risk, and is expected to replace airbag inflators before their function would be affected. Additional Note: This is an expansion of recall 2018-030.
Recall 201532310,600 units in Canada
Suspension
On certain vehicles, the front suspension ball joint could separate from the lower control arm due to corrosion caused by saltwater intrusion. This could result in a loss of steering control, increasing the risk of a crash causing injury and/or damage to property. Correction: Dealers will replace lower control arm with an updated version.
Reports where the owner recorded a crash, a fire, an injury or a death.
at 173,000 milesBrooklyn, NYCrash
AIR BAGS
The contact owns a 2011 Mazda CX-9. The contact stated that while attempting to park the vehicle at a slow speed in the driveway, the vehicle suddenly experienced unintended acceleration, lurched forward, and crashed into a tree before coming to a stop. The contact was unable to stop the vehicle during the sudden unintended acceleration. During the failure the vehicle sustained front end damages, but no air bags had deployed. No injuries were reported. The cause of the failure was not yet determined. The contact stated that twice in the day before the unintended acceleration, the vehicle jerked forward in traffic however, the contact attributed the issue to the brake pedal not being firmly depressed or the clutch not properly engaged while shifting gear. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet contacted. The failure mileage was 173,000.
NHTSA complaint #11677734 — an unverified report by a vehicle owner.
at 173,000 milesBrooklyn, NYCrash
VEHICLE SPEED CONTROL
The contact owns a 2011 Mazda CX-9. The contact stated that while attempting to park the vehicle at a slow speed in the driveway, the vehicle suddenly experienced unintended acceleration, lurched forward, and crashed into a tree before coming to a stop. The contact was unable to stop the vehicle during the sudden unintended acceleration. During the failure the vehicle sustained front end damages, but no air bags had deployed. No injuries were reported. The cause of the failure was not yet determined. The contact stated that twice in the day before the unintended acceleration, the vehicle jerked forward in traffic however, the contact attributed the issue to the brake pedal not being firmly depressed or the clutch not properly engaged while shifting gear. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet contacted. The failure mileage was 173,000.
NHTSA complaint #11677734 — an unverified report by a vehicle owner.
at 86,000 milesSpringfield, ORCrash
AIR BAGS
TL* THE CONTACT OWNS A 2011 MAZDA CX9. THE CONTACT STATED THAT WHILE HIS WIFE WAS DRIVING APPROXIMATELY 13 MPH AND ATTEMPTING TO SLOW DOWN, THE BRAKE PEDAL WAS HARDER THAN USUAL TO DEPRESS. AS A RESULT, THE DRIVER REAR ENDED THE VEHICLE IN FRONT CAUSING A FIVE VEHICLE COLLISION AT A TRAFFIC LIGHT. NONE OF THE FRONTAL AIR BAGS DEPLOYED. THE POLICE WERE PRESENT AND A POLICE REPORT WAS FILED. THERE WERE NO INJURIES REPORTED. THE VEHICLE WAS TOWED TO AN IMPOUND LOT WHERE THE INSURANCE COMPANY WAS SCHEDULED TO HAVE AN INSPECTOR INSPECT THE VEHICLE. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR A DIAGNOSTIC. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE CONTACT REFERENCED NHTSA ACTION NUMBER: PE14005 (SERVICE BRAKES, HYDRAULIC). THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 86,000.
NHTSA complaint #11296688 — an unverified report by a vehicle owner.
at 86,000 milesSpringfield, ORCrash
SERVICE BRAKES
TL* THE CONTACT OWNS A 2011 MAZDA CX9. THE CONTACT STATED THAT WHILE HIS WIFE WAS DRIVING APPROXIMATELY 13 MPH AND ATTEMPTING TO SLOW DOWN, THE BRAKE PEDAL WAS HARDER THAN USUAL TO DEPRESS. AS A RESULT, THE DRIVER REAR ENDED THE VEHICLE IN FRONT CAUSING A FIVE VEHICLE COLLISION AT A TRAFFIC LIGHT. NONE OF THE FRONTAL AIR BAGS DEPLOYED. THE POLICE WERE PRESENT AND A POLICE REPORT WAS FILED. THERE WERE NO INJURIES REPORTED. THE VEHICLE WAS TOWED TO AN IMPOUND LOT WHERE THE INSURANCE COMPANY WAS SCHEDULED TO HAVE AN INSPECTOR INSPECT THE VEHICLE. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR A DIAGNOSTIC. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE CONTACT REFERENCED NHTSA ACTION NUMBER: PE14005 (SERVICE BRAKES, HYDRAULIC). THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 86,000.
NHTSA complaint #11296688 — an unverified report by a vehicle owner.
at 104,585 milesIuka, MSCrash2 injured
AIR BAGS
I OWN A 2011 MAZDA CX-9. ANOTHER VEHICLE CRASHED HEAD ON INTO MY VEHICLE WHILE IT WAS IDLING STOPED AT A STOP SIGN WHEN IMPACT ACCURSED . THE AIR BAGS FAILED TO DEPLOY AND BOTH FRONT PASSENGER SEAT BELTS DID NOT RETRACT. THERE WERE INJURIES AND A POLICE REPORT WAS FILED. THE VEHICLE WAS TAKEN TO AN AUTOBODY SHOP FOR REPAIR; HOWEVER, A DIAGNOSTIC TEST WAS NOT PERFORMED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS INVALID. THE FAILURE MILEAGE WAS 104,585
NHTSA complaint #10731151 — an unverified report by a vehicle owner.
at 104,585 milesIuka, MSCrash
SEAT BELTS
TL* THE CONTACT OWNS A 2011 MAZDA CX-9. ANOTHER VEHICLE CRASHED HEAD ON INTO THE CONTACT'S VEHICLE WHILE IT WAS IDLING. THE AIR BAGS FAILED TO DEPLOY AND BOTH FRONT PASSENGER SEAT BELTS DID NOT RETRACT. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE VEHICLE WAS TAKEN TO AN AUTOBODY SHOP FOR REPAIR; HOWEVER, A DIAGNOSTIC TEST WAS NOT PERFORMED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS INVALID. THE FAILURE MILEAGE WAS 104,585.
NHTSA complaint #10730647 — an unverified report by a vehicle owner.
The most recent complaints
In the owners' own words, exactly as filed with NHTSA.
Akron, OH
POWER TRAIN
The front driver-side lower ball joint suffered a catastrophic structural failure and sheared completely apart while moving. This vehicle was previously serviced under Safety Recall Campaign 15V451000 / Mazda Recall 8515G for this exact defect. The recall remedy part failed a second time, collapsing the front wheel assembly, ripping the CV axle completely out of the transmission casing, causing a hazardous transmission fluid spill, and leaving the vehicle stranded and immobilized in the middle of a live roadway in the dark
NHTSA complaint #11747329 — an unverified report by a vehicle owner.
Akron, OH
SUSPENSION
The front driver-side lower ball joint suffered a catastrophic structural failure and sheared completely apart while moving. This vehicle was previously serviced under Safety Recall Campaign 15V451000 / Mazda Recall 8515G for this exact defect. The recall remedy part failed a second time, collapsing the front wheel assembly, ripping the CV axle completely out of the transmission casing, causing a hazardous transmission fluid spill, and leaving the vehicle stranded and immobilized in the middle of a live roadway in the dark
NHTSA complaint #11747329 — an unverified report by a vehicle owner.
at 173,000 milesBrooklyn, NYCrash
AIR BAGS
The contact owns a 2011 Mazda CX-9. The contact stated that while attempting to park the vehicle at a slow speed in the driveway, the vehicle suddenly experienced unintended acceleration, lurched forward, and crashed into a tree before coming to a stop. The contact was unable to stop the vehicle during the sudden unintended acceleration. During the failure the vehicle sustained front end damages, but no air bags had deployed. No injuries were reported. The cause of the failure was not yet determined. The contact stated that twice in the day before the unintended acceleration, the vehicle jerked forward in traffic however, the contact attributed the issue to the brake pedal not being firmly depressed or the clutch not properly engaged while shifting gear. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet contacted. The failure mileage was 173,000.
NHTSA complaint #11677734 — an unverified report by a vehicle owner.
at 173,000 milesBrooklyn, NYCrash
VEHICLE SPEED CONTROL
The contact owns a 2011 Mazda CX-9. The contact stated that while attempting to park the vehicle at a slow speed in the driveway, the vehicle suddenly experienced unintended acceleration, lurched forward, and crashed into a tree before coming to a stop. The contact was unable to stop the vehicle during the sudden unintended acceleration. During the failure the vehicle sustained front end damages, but no air bags had deployed. No injuries were reported. The cause of the failure was not yet determined. The contact stated that twice in the day before the unintended acceleration, the vehicle jerked forward in traffic however, the contact attributed the issue to the brake pedal not being firmly depressed or the clutch not properly engaged while shifting gear. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet contacted. The failure mileage was 173,000.
NHTSA complaint #11677734 — an unverified report by a vehicle owner.
Douglasville, GA
AIR BAGS
While driving the side airbags exploded and I had to stop in the middle of the street, get vehicle towed to mazda dealer in Alpharetta, GA Now, im without a vehicle. What do I do now?
NHTSA complaint #11673826 — an unverified report by a vehicle owner.
at 125,000 milesSmithville, OH
SUSPENSION:FRONT:CONTROL ARM
The contact owns a 2011 Mazda CX-9. The contact stated that while driving at an undisclosed speed and making a turn, the contact lost control of the vehicle, and the front driver's side suspension lowered to the ground. The vehicle was towed to an independent mechanic, who determined that the subframe was severely rusted, causing the control arm to detach. The contact was informed that the subframe needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 125,000.
NHTSA complaint #11658375 — an unverified report by a vehicle owner.
at 125,000 milesSmithville, OH
STRUCTURE
The contact owns a 2011 Mazda CX-9. The contact stated that while driving at an undisclosed speed and making a turn, the contact lost control of the vehicle, and the front driver's side suspension lowered to the ground. The vehicle was towed to an independent mechanic, who determined that the subframe was severely rusted, causing the control arm to detach. The contact was informed that the subframe needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 125,000.
NHTSA complaint #11658375 — an unverified report by a vehicle owner.
Colorado Springs, CO
POWER TRAIN
I had an issue with the AWD not engaging and the 4x4 light illuminating when driving on snow and ice. No indicators when driving under normal conditions. I had no traction and had difficulty maintaining control of the vehicle while driving at speeds less than 25 mph. I had difficulty gettting momentum from a stop as the tires were spinning and engaging tracion. I took the car into a Mazda dealership for a full circle inspection and found that the 4x4 light was illuminating due to worn-out splines connecting the transfer case. The technician was able to spin the driveshaft, indicating the splines are damaged and need to be replaced. Recommendations were to replace the transmission and transfer case with a repair estimate of $5469.61. Additionally, the technician observed some seeping of oil coming from the tiing cover and reccommends re-sealing it as well as replacing the water pump ( another known failure issue in which Mazda is aware of). Cost estimate of $4319.78. The technician also observed a crack in the right rear differential mount with a repair cost of $442.10. In short, Mazda knew about all these problems. They issued a warrenty extention from my research back in 2014 but never issued any recalls. In short, I didn't own this vehicle in 2014, I purchased in 2016. I was never aware of any warrenty extentions to include these issues and if I was aware, I would have had the services done for repairs. My safety as well as my family's and others are at risk if I lose control of the vehicle due to the AWD not engaging when needed.
NHTSA complaint #11631793 — an unverified report by a vehicle owner.
Mount Holly, NC
SERVICE BRAKES
Brake booster failure. The power assisted braking has stopped working. There are no leaking vacuum hoses and the check valve is working. The brake pedal travels to the floorboard.
NHTSA complaint #11620856 — an unverified report by a vehicle owner.
Bethlehem, PA
ENGINE
Driving kids to school a few months ago. Car started to smell like burning rubber. I thought it was the garbage truck ahead of us. As we turned the corner 2 blocks later, the car dead stopped and we all went flying forward. It jerked so hard, we are lucky our necks didn't snap. I put the car in park and turned it off. I waited a few minutes as I was too worked up, and started the car again. We got about 50ft before a very loud noise began, almost as if something was dragging underneath. I stopped, and had it towed home. I then had it towed to mechanic. They said bad TRANSFER CASE & DRIVE SHAFT. - TRANS PAN GASKET. I am a single mom with no money to afford to have it fixed in fear of it going bad again. They quoted me 3,500 here in PA.
NHTSA complaint #11546714 — an unverified report by a vehicle owner.
at 67,000 milesColorado Springs, CO
SERVICE BRAKES
The contact owns a 2011 Mazda CX-9. The contact stated while driving 20 MPH, there was an abnormal sound coming from the brakes. The contact stated that the brake pedal was firm and difficult to depress while attempting to stop the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was contacted, and a case was filed. The failure mileage was 67,000.
NHTSA complaint #11506010 — an unverified report by a vehicle owner.
Chagrin Falls, OH
SERVICE BRAKES
Braking trouble recent in weeks in 2011 Mazda CX-9 vehicle. Had mechanic (Euro Motorsports in Chagrin Falls OH) check it out. Turned out to be a faulty Brake Booster. Mechanic test drove car; braking failed and he almost rear-ended another vehicle. He found on line a Mazda service notice dating from April 4, 2014 called SSP93. Mazda issued an extended warranty of 7 years or 90,000 miles, whichever came first, to have defective part replaced by an improved part. But we were never informed by Mazda of Bedford, where we bought the vehicle. Currently, our vehicle has about 83,000 miles. Never knew there was a problem until recent trouble with the braking. There are thousands of CX-5, Cx-7, and Cx-9 vehicles in operation in U.S. right now; probably many owners have no idea there is a brake defect in their vehicles that could cause a serious accident, potentially fatal. Mazda should have done a recall in 2014, not an extended warranty. Although Brake Boosters are supposedly good for at least 150,000 miles of driving, our brake failure at around 83,000 miles proves otherwise. NHTSA should order Mazda to recall all vehicles with the defective brake part and replace them at Mazda's expense, probably hundreds of dollars each time. We do not want to have our brake booster replaced by our regular Euro Motosports mechanics because a recall must typically be repaired by the dealer. We already filed a complaint with State of Ohio Attorney General's office, but their people say the complaint must first go through BBB. No urgency on their part at all, even when informed potentially fatal flaw in the brakes. To avoid dangerous accidents, NHTSA should act more swiftly. Thanks.
NHTSA complaint #11487622 — an unverified report by a vehicle owner.
Albuquerque, NM
ELECTRICAL SYSTEM
The front door windows no longer work. Most recently, the drivers side back door will NOT open. The lock is completely jammed - will not open or shut, which is a safety hazard for my child. The plastic parts in this car are failing and putting my family at risk.
NHTSA complaint #11480657 — an unverified report by a vehicle owner.
West Valley City, UT
ENGINE
Defective water pump located inside the engine that when failure occurs can cause coolant to leak into engine causing complete engine failure. This is a major safety hazard due to the fact that these cars with defective water pumps can break down with very little warning in the middle of a freeway! I have contacted Mazda who refuses to do anything due to it being outside warranty but will not acknowledge the safety concern sudden engine failure can cause on a perfectly maintained car. In California there is currently a lawsuit against Mazda for this issue and hundreds of other Ford and Mazda owners who have been caught in very dangerous situations due to this water pump failure issue. The situation we were involved in could have gone very differently and that was my family in the vehicle that Mazda seems to care about a couple thousand dollars more then the value of life... is just ridiculous! Please do the research yourself so no one has to loose their life over this.
NHTSA complaint #11440057 — an unverified report by a vehicle owner.
Glen Mills, PA
POWER TRAIN
When getting off highway engine began to knock. Engine stalled and would not restart. Upon inspection the water pump was found to have failed and leaked engine coolant into oil. This caused engine to have a complete failure. No check engine light illuminated but when car was scanned multiple codes were found. The car was also found to have a bad Transfer Case.
NHTSA complaint #11432665 — an unverified report by a vehicle owner.
Glen Mills, PA
ENGINE
When getting off highway engine began to knock. Engine stalled and would not restart. Upon inspection the water pump was found to have failed and leaked engine coolant into oil. This caused engine to have a complete failure. No check engine light illuminated but when car was scanned multiple codes were found. The car was also found to have a bad Transfer Case.
NHTSA complaint #11432665 — an unverified report by a vehicle owner.
at 144,000 milesRichmond Heights, OH
ENGINE
The contact owns a 2011 Mazda CX-9. The contact stated while driving 60 mph, upon approaching oncoming traffic, the vehicle unexpectedly shut-off. The contact was able to restart the vehicle and pulled the vehicle off to the shoulder. The contact stated that upon restarting the vehicle, the check engine warning light illuminated. Due to the failure and the warning light, the contact had the vehicle towed to an independent mechanic. Upon inspection of the vehicle, the mechanic informed her that coolant had leaked into the oil cylinder and they referred her to a dealer for assistance. The contact then had the vehicle towed to the dealer where they diagnosed the vehicle with a defective water pump as well as engine failure. The manufacturer was also notified of the failure and stated that the failure was caused due to poor maintenance. No further assistance was provided. The vehicle had yet to be repaired and remained in the possession of the dealer. The failure mileage was approximately 144,000.
NHTSA complaint #11428032 — an unverified report by a vehicle owner.
at 80,106 milesNewbury Park, CA
SERVICE BRAKES
SIRT: I PURCHASED MY 2011 MAZDA CX 9 FROM MY CLOSE FRIEND [XXX] ON DEC.05 OF 2014! [XXX] HAD NOT BEEN ISSUED A SPECIAL SERVICES PROGRAM ABOUT THE BRAKE BOOSTER! WELL I NEVER RECEIVED THIS INFO EITHER? IN FACT I HAD TWO RECALL THAT WERE TAKEN CARE OF BY THE LOCAL MAZDA DEALER HERE IN THOUSAND OAKS CALIF. THIS KNOWN BRAKE BOOSTER DETONATION HAS BEEN KNOWN BY MAZDA.IOT IS A VERY DANGEROUS CONDITION AND IS NOT TO SAFE TO DRIVE THE CAR AT ALL- I WILL NOT DRIVE THE CAR AND SEETHE ORIGINAL MATTER SHOULD HAVE BEEN LET IT BE KNOWN TO MYSELF AND FEEL THE MATTER SHOULD BE ADDRESSED ASAP BY MAZDA -THANK YOU [XXX] ADDING BACKING -VERY HARD BRAKE - WHEN DRIVING IT HAD TO REALLY STAND HARD ON THE BRAKE TO STOP CAR B! ALL INDICATIONS POINT TO A BRAKE BOOSTER FAILURE ! TO SUMMARIZE IO WAS NEVER NOTIFIED BY MAZDA ABOUT THE SPECIAL SERVICE PROGRAM FOR THE REPAIR OF THIS EXTREMELY UNSAFE BRAKE PROBLEM! INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
NHTSA complaint #11406762 — an unverified report by a vehicle owner.
at 89,000 milesGordo, AL
STEERING
WATER PUMP LEAKING IN ENGINE MIXING WITH OIL
NHTSA complaint #11405170 — an unverified report by a vehicle owner.
at 89,000 milesGordo, AL
ENGINE
WATER PUMP LEAKING IN ENGINE MIXING WITH OIL
NHTSA complaint #11405170 — an unverified report by a vehicle owner.
Lithonia, GA
AIR BAGS
I PURCHASED A VEHICLE FROM A BUY HERE PAY HERE AND LATER REALIZED AFTER TWO WEEKS OF HAVING THE CAR THAT HAS A RECALL FOR THE AIRBAG ON THE PASSENGER SIDE...BUT THE CAR WAS SOLD AS IS FROM AUTO SALES IN BUFORD GA
NHTSA complaint #11396246 — an unverified report by a vehicle owner.
at 118,000 milesFrederick, MD
POWER TRAIN
WHILE DRIVING THE CAR ON A COUNTY ROAD, WITH THE SPEED UNDER 40 MPH, AND FOLLOWING THE BEND IN THE ROAD TO LEAD TO GETTING ON THE HIGHWAY, THE CAR JERKED FORWARD AS IF I HIT SOMETHING. AS I CONTINUED TO DRIVE, THE CAR WAS MAKING LOUD CLINKING SOUNDS AND WAS JERKING IN MOTION. NO WARNING LIGHTS WENT ON. WHILE ATTEMPTING TO CONTINUE TO DRIVE, CLANGING NOISES COULD BE HEARD AND THE CAR CONTINUED TO JERK FORWARD. THE CAR WAS UNABLE TO BE DRIVEN. AFTER HAVING IT TOWED TO MY MECHANIC, IT WAS DETERMINE THE PROBLEM WAS THE TRANSFER CASE. THE SPLINES BETWEEN THE TRANSMISSION AND TRANSFER CASE HAD BEEN EATEN AWAY BY RUST. THE SEAL HAD NOT KEPT WATER OUT AS IT WAS DESIGNED TO DO. A NEW TRANSFER CASE WAS ORDERED AS WELL AS A NEW TRANSMISSION. THE REPLACEMENT TRANSFER CASE HAD SHOWN SIGNS OF THE SAME ISSUES WITH THE SPLINES. ANOTHER (2ND ONE) TRANSFER CASE HAD TO BE ORDERED. I HAD PURCHASED THIS CAR IN FEBRUARY 2019 USED. THE CAR HAD A CLEAN TITLE, NO ACCIDENTS AND WAS SERVICED REGULARLY. WITHIN 1 YEAR, I HAD TO PAY OUT $5,000.00 TO REPLACE TRANSFER CASE AND TRANSMISSION. I LOST THE USE OF MY CAR FOR OVER 3 WEEKS (DUE TO THE PROBLEMS WITH GETTING A TRANSFER CASE THAT WAS GOOD). WHEN YOU GOOGLE THIS ISSUE, MANY PEOPLE HAVE HAD SIMILAR ISSUES.
NHTSA complaint #11385491 — an unverified report by a vehicle owner.
at 126,000 milesPortland, OR
ENGINE
WHILE DRIVING STRAIGHT ON A HIGHWAY THE WATER PUMP BEARING FAILED CAUSING COOLANT TO LEAK AND MIX WITH THE ENGINE OIL. THE CAR IMMEDIATELY STARTED TO MAKE A RATTLE NOISE AND SMOKE OR STEAM CAME FROM UNDER THE HOOD. THE UNDERSIDE OF THE CAR WAS COVERED WITH COOLANT AND WHAT APPEARED TO BE OIL. THE CAR WAS NOT DRIVABLE AND HAD TO BE TOWED TO A MECHANIC. ONCE AT THE MECHANIC THE TOOK THE ENGINE OUT TO GET TO THE WATER PUMP, ONCE EVERYTHING WAS PUT BACK TOGETHER IT WAS FOUND THAT THE FAILURE ALSO CAUSED DAMAGE TO THE VVT ACTUATER AND ALTERNATOR. THE ENGINE IS COMPLETELY SHOT.
NHTSA complaint #11374566 — an unverified report by a vehicle owner.
at 100,000 milesCentereach, NY
POWER TRAIN
THE BRAKE PEDAL SEEMS HARD TOO STOP THE CAR WHEN IN MOTION ON PUBLIC STREETS, VEHICLE CONTINUES TOO ROLL UPON PUMPING BRAKES, HAVE TOO CONTINUOUSLY PUMP THE BRAKE HARD TOO STOP THE VEHICLE, HAD THE FRONT BRAKES REPLACED RECENTLY, AND BRAKE PEDAL IS STILL NOT FUNCTIONING CORRECTLY, POSSIBLY THE BRAKE BOOSTER.
NHTSA complaint #11351938 — an unverified report by a vehicle owner.
at 100,000 milesCentereach, NY
SERVICE BRAKES
THE BRAKE PEDAL SEEMS HARD TOO STOP THE CAR WHEN IN MOTION ON PUBLIC STREETS, VEHICLE CONTINUES TOO ROLL UPON PUMPING BRAKES, HAVE TOO CONTINUOUSLY PUMP THE BRAKE HARD TOO STOP THE VEHICLE, HAD THE FRONT BRAKES REPLACED RECENTLY, AND BRAKE PEDAL IS STILL NOT FUNCTIONING CORRECTLY, POSSIBLY THE BRAKE BOOSTER.
NHTSA complaint #11351938 — an unverified report by a vehicle owner.