2015 Mazda CX-9

35 complaints on file, page 1 of 2.

1. Filed Apr 3, 2025Failure Apr 3, 2025Wellpinit, WAEngine

   My Mazda has been serviced regularly, in fact my next oil change isn't for 2,000 more miles. I was driving when I heard this weird noise. I looked at the dash and the oil light was flashing and the temperature was over heating. I could also feel the vehicle getting sluggish. I pulled over on the interstate. All the lights were on by this time. I popped the hood and there wasn't any coolant in the resivour anymore. I let the car cool down and I added some water as I was 1 mile from the exit where there was a gas station. I had to baby the car to the exit and shut it off whenever it got hot. The oil was full and seemed overfull even..... Mechanic is guessing the coolant leaked if the engine.... I was stranded for hours with 4 children...

   NHTSA complaint 11652669
2. Filed Aug 14, 2024Failure Aug 8, 2024Laurel, MDEngine, Fuel/propulsion system, Power train

   We have a 2015 Mazda CX-9 Touring with All-Wheel Drive (AWD). The issue that has been happening is a flashing check engine light (CEL) indicator showing up in the gauge cluster. This issue originally started in October of 2023. I was on the highway doing at least 55 miles per hour (mph). Before the light actually came on, I had already felt the vehicle shaking, and also noticed the acceleration was sluggish. In the blink of an eye, the CEL came on and started flashing. After that point, the CEL stayed on. I was able to get to my destination safely. We took the vehicle to a shop, and told the mechanics the issue, but they could not re-create what happened. We stopped driving the vehicle as much after this first encounter. A couple of months later, the issue still persisted, and we took it to another shop. They changed the spark plugs, and the vehicle had been driving CEL-free for several months. Recently, we were going to take the vehicle out for a drive, and noticed the vehicle shaking (before the CEL officially came on) again. The CEL flashed and came on. As of this moment, the CEL pops up and stays on when starting the vehicle. I put in a code reader, and the code that came up was “PO304 Cylinder 4 Misfire Detected.” We are figuring out what our next plan(s) is/are with the vehicle. I looked at some forums for the 2007-2015 Mazda CX-9 Generation, and I noticed that someone mentioned that there was an issue with the injector pigtail wire (one of the fuel injectors). They also mentioned spark plugs and coil plugs. But they still had an issue and it seemed to be not resolved. I'm wondering if this issue could have a direct or indirect connection with the Takata Airbag recall that was issued on August 13th, 2024 with a "Do Not Drive" alert.

   NHTSA complaint 11608589
3. Filed May 30, 2024Failure May 30, 2024South San Francisco, CAUnknown or other

   2015 transmission problem Mazda dealership unable to affect because transmissions are no longer made for my model

   NHTSA complaint 11591627
4. Filed Feb 1, 2024Failure Jan 30, 2024124,000 milesPearl, MSEngine and engine cooling

   The contact owns a 2015 Mazda CX9. The contact stated that while driving at approximately 55 MPH, the vehicle shut off. The contact stated that the engine was overheating. The contact restarted the vehicle, and the vehicle stalled again. The vehicle continued to coast into a parking lot. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the water pump, timing chain, cam phaser, timing chain tensioner, and an engine replacement were needed. The vehicle was not repaired. The manufacturer was not contacted. The approximate failure mileage was 124,000.

   NHTSA complaint 11569248
5. Filed Sep 14, 2023Failure Sep 1, 2023Sugar Hill, GAEngine

   The issue is with the design of the Water Pump on this vehicle. From my understanding, this is a common issue with the 2015 Mazda CX-9. What happens is once the water pump starts to fail due to the design, the vehicle starts to stall randomly which poses a safety issue to my family when driving. The vehicle was inspected by a dealership in the area and was ultimately fixed. I was informed that the water pump has been redesigned by the manufacturer to prevent this issue from happening again.

   NHTSA complaint 11544460
6. Filed Apr 14, 2023Failure Apr 14, 2023Moreno Valley, CAEngine, Unknown or other

   My check engine light came on. Thought it was the oil needing to be changed. Oil was extra dark and muggy. Also notice antifreeze low. Fill up antifreeze and change oil. 2 wks later antifreeze back down low. Check engine still on. Got it diagnosed with auto scanner and says camshaft sensor. Went to autoshop, mechanic says it's not cramshaft sensor but water tank leak in engine which was picked up by camshaft sensor. I have yet to find out what else is wrong or if my engine needs to be replaced. For sure the water tank needs replacement. I read from others of their car over heating or completely stopped working. I fear this because I have 3 kids and on weekends I drive on the highway for about an hour to get to my destination. This is something dangerous because I don't want to get rear ended or hurt if my car suddenly gives out during heavy traffic.

   NHTSA complaint 11517156
7. Filed Feb 16, 2023Failure Feb 14, 2023Roanoke, VAEngine

   Engine failed suddenly while driving on a busy street. No lights were on, no warnings. Slight hum earlier that day, that was almost indistinguishable from the radio or other road noise. Steering and brakes not responsive. Had it towed to dealer who found that the water pump had failed which allowed coolant to leak into the oil. Dealer mechanic stated that the water pump is not visible to any mechanic without removing the entire engine, therefore would not have been able to see defects or problems ahead of event. Also said the fix would run a minimum of $3400 if a new water pump could even fix the problem. Found that there is a class action lawsuit against Mazda already for the CX9 for my model year because they know of the problem yet refuse to recall. I am one of many this has happened to. It is very unsafe for a car to suddenly seize while driving. Especially with no warnings and with the car having only 97000 miles on it. Had my new teenage driver been behind the wheel or had it happened a few minutes earlier while I was on the interstate, the outcome could have been very different.

   NHTSA complaint 11507607
8. Filed Jan 27, 2023Failure Jan 15, 2023Dallas, GAEngine

   Water pump failed and leaked coolant into oil. Known issue by Mazda but they have failed to warn consumers. Repairs roughly 4000 dollars. Luckily I caught before engine failed due to lubricant dilution from coolant. Potentially a very dangerous flaw.

   NHTSA complaint 11504068
9. Filed Jul 9, 2022Failure Aug 12, 2021Clanton, ALExterior lighting

   The wiring harness on the headlight for my Mazda CX-9 has and continues to melt, causing the bulb to be useless. The only issue that will seem to correct this issue is installing new headlights. According to my research this is a problem that is common to Mazda CX-9 vehicles.

   NHTSA complaint 11473038
10. Filed Apr 28, 2022Failure Mar 16, 2022Worcester, MAEngine

    2015 Mazda CX-9 with 93k miles: while driving in traffic, check engine light suddenly came on, the car began to shudder as I heard a loud knocking noises coming from under the hood, and then a sudden loss of power while trying to navigate through a busy intersection while trying to make a left turn left myself in danger of almost being struck from the vehicle behind me and an oncoming vehicle from the opposite direction due to me stalling out in the middle of an intersection. The water pump (unbeknownst to myself and apparently many others) is located inside of the engine and behind the timing belt components failed without showing any prior signs of failure due to the water pump being hidden inside of the engine. The coolant had been leaking into the oil pan and mixed with the oil but because the water pump was purposely hidden inside the engine NO leaks of coolant (which would have been the early warning tell-tale sign of a problem) were visible. This faulty design caused a catastrophic failure of my engine which has been verified by a Mazda dealership and the engine had to be replaced at my cost. Although there were no injuries or deaths in my case, it does not nullify a faulty design and component of a vehicle putting peoples safety at risk when it is a well known industry fact that Mazda knowingly continued to manufacture this faulty design and use it in their vehicles.

    NHTSA complaint 11462554
11. Filed Apr 19, 2022Failure Mar 7, 2022Northbridge, MAEngine

    I am attaching documents to report 11461223 submitted April 18,2022

    NHTSA complaint 11461264
12. Filed Apr 18, 2022Failure Mar 7, 2022Northbridge, MAEngine

    On December 14, 2015, I bought, a Mazda CX-9, at Sentry West Mazda located at 940 Boston Turnpike, Shrewsbury MA 01545. Unfortunately, the car's engine contains a defect in design, manufacturing, materials and/or workmanship that causes the water pump to suddenly and prematurely fail well-before the end of the useful life of the engine, which leads to catastrophic engine failure or a costly replacement due to the water pump’s inaccessible placement in the engine. On March 7, 2022 while driving the car to the dealer to take care of a Check Engine Warning Light, the car started to shake, all the dashboard lights turned on and the car stopped. My car was immediately towed to the dealer, and hours later I was told that my car needed a new engine. I felt paralyzed with awed when I heard that my 2015 Mazda CX-9, which was just 6 years old with no more than 90,000 miles, needed a new engine. I have been taking this vehicle to the Mazda dealer for all its repairs and maintenance needs, so I can be confident that my family were safe in this car. Unfortunately, this has not been the case. In addition, please note that there is a pending litigation against Mazda for this kind of Engine. Please see more information in this link. https://www.ktmc.com/mazda-water-pump-engine-failure I strongly believe that a car like this is a threaten to the life of anyone driving in and to the people around it. Therefore, I am asking to this organization to take immediately action on this case. Thanks in advance for your attention to this matter, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

    NHTSA complaint 11461223
13. Filed Oct 13, 2021Failure Oct 11, 2021110,435 milesSlidell, LAEngine

    The contact owns a 2015 Mazda CX-9. The contact stated while driving 40 MPH, the temperature gauge began to accelerate rapidly. The contact stated no warning light was illuminated. The contact was able to park on the side of the road for approximately 3 hours, until the engine cooled down. The contact stated she added water and continued driving to her destination. The contact took the vehicle to an independent mechanic, where it was diagnosed with needing the engine to be replaced. The vehicle was not repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was 110,435.

    NHTSA complaint 11436560
14. Filed Jul 21, 2021Failure Jul 18, 202167,384 milesNew Bedford, MAEngine, Power train, Unknown or other

    I was driving into the highway and my vehicle just shut off. I was in the car with my children and I was scared that we were going to be rear ended. I had my mechanic look at the car and he advised me that the water pump leaked and the coolant leaked into the oil. I’m having another mechanic provide me with an estimate of how much the repair is going to cost. After the car shut off and I tried to turn it in again the batter, engine and oils light went off and I had the car towed to the local mechanic.

    NHTSA complaint 11425780
15. Filed Mar 20, 2021Failure Mar 19, 2021107,300 milesHouston, TXEngine

    ENGINE LIGHT CAME ON THEN MY VEHICLE STARTED OVER HEATING AND LEAKING COOLANT. VEHICLE WAS TOWED TO DEALERSHIP.AFTER TECHNICIAN DIAGNOSED THE PROBLEM, I WAS TOLD IT WAS THE INTERNAL WATER PUMP THAT CAUSED FLUID TO MIX WITH THE ENGINE OIL RUINING THE ENGINE. I WAS TOLD I HAD THREE OPTIONS: BUY A NEW ENGINE, BUY A USED ENGINE OR BUY A NEW CAR. I WAS TOLD THAT THIS WAS AN ISSUE WITH THIS YEAR, MAKE AND MODEL FOR SEVERAL CUSTOMERS. I ASKED WHY A RECALL NOTICE WAS NOT GIVEN TO VEHICLE OWNERS AND WAS TOLD IT WAS NOT A SAFETY ISSUE. IT WOULD HAVE RESULTED IN AN ACCIDENT IF I WAS ON THE FREEWAY DUE TO THE SUDDEN OCCURRENCE OF THE BREAKDOWN. I WAS DRIVING ON A STREET IN TRAFFIC. (MIDDLE LANE)WHEN MY CAR STARTED OVERHEATING AND SHUT DOWN. I MANAGED TO GET IT TO RESTART AND WAS BARELY ABLE TO SAFELY PULL INTO A PARKING LOT WHERE I QUICKLY TURNED IT OFF. I CONTACTED THE GREENWAY MAZDA DEALERSHIP TO REPORT PROBLEM AND REQUEST TOW SERVICE . MAZDA HAS APPARENTLY BEEN AWARE OF THIS ISSUE FOR A WHILE.

    NHTSA complaint 11404014
16. Filed Oct 28, 2020Failure Oct 6, 202065,000 milesMarriottsville, MDEngine

    WE PURCHASED A 2015 MAZDA CX9 WITH 30,000 MILES THREE YEARS AGO. AT THE START OF THE MONTH, THE CAR SUDDENLY OVERHEATED WHILE DRIVING AND THE ENGINE FAILED! THE MECHANIC SAID THE WATER PUMP FAILED, THE COOLANT MIXED WITH THE ENGINE OIL AND THE ENGINE WAS DONE. $$7944.41 ADDITIONALLY, THE OVERHEATED ENGINE CAUSED THE TRANSMISSION FLUID TO BURN TO A POINT THE THE TRANSMISSION FAILED. $$4864. THIS HAPPENED AT 65,000 MILES, 5,000 MILES PAST WARRANTY. AFTER RESEARCHING THE PROBLEM, WE LEARNED THAT THIS IS A COMMON PROBLEM ON MAZDAS THAT USE THE DURATECH ENGINE. THERE ARE THOUSANDS OF EXAMPLES AND A CLASS ACTION LAWSUIT.

    NHTSA complaint 11366824
17. Filed Oct 6, 2020Failure Oct 5, 202084,564 milesRIO Linda, CAEngine

    CODE P0016 CAME UP ONE DAY PRIOR TO ENGINE FAILURE. 30 MILES AFTER CHECK ENGINE LINE CAME UP LOSS POWER. UPON INSPECTION WATER PUMP FAILURE AT 85000 MILES. ENGINE MOST LIKELY TOASTED

    NHTSA complaint 11362958
18. Filed Jun 15, 2020Failure Jun 11, 20209 milesBeaverdam, VAUnknown or other2 injured

    I HAVE A PROBLEM WITH GETTING IN MY CAR AND FINDING SPIDERS AND SPIDER WEBS. I HAVE BEEN BITTEN BY THEM AND SO HAS MY FIANC. I GOT IN THE CAR YESTERDAY AND A WEB WAS COMING FROM THE AIR CONDITIONING VENT TO THE GEAR HANDLE. *TR

    NHTSA complaint 11328817
19. Filed Feb 5, 2020Failure Sep 12, 2019Monterey, CAUnknown or other

    I'VE HAD MY MAZDA FOR ONLY 3 YEARS. I WAS DRIVING UP THE HILL TOWARDS MY HOUSE TO PARK MY CAR AND IT JUST QUIT WORKING. IT SHUT OFF AND NOW IT WILL NOT START. NOW I'M STUCK PAYING $400 A MONTH FOR A CAR THAT DOESN'T EVEN WORK. IT'S VERY DISAPPOINTING. I THINK THIS CAR SHOULD BE RECALLED.

    NHTSA complaint 11307346
20. Filed Jan 1, 2020Failure Dec 27, 2019116,100 milesPowder Springs, GAEngine, Unknown or other

    WHILE DRIVING MY 2015 MAZDA CX-9 ON A VERY BUSY INTERSTATE, THE CHECK ENGINE LIGHT APPEARED ON THE DRIVER PANEL. I WAS TRAVELING WITH MY VERY YOUNG CHILDREN, AGES 4 AND 20 MONTHS. APPROXIMATELY 10 MILES LATER, I STARTED HEARING A RATTLING SOUND UNDER THE HOOD. SHORTLY THEREAFTER, MY CAR STALLED OUT AS I ENTERED MY SUBDIVISION. MY HUSBAND HAD TO PUSH THE CAR TO OUR DRIVEWAY. I CALLED AAA THAT SAME DAY AND HAD THE CAR TOWED TO THE DEALERSHIP THAT SERVICES THE VEHICLE. I WAS TOLD THAT THE WATER PUMP NEEDED TO BE REPLACED AND WAS QUOTED A PRICE TO FIX THE ISSUE. LATER, I WAS TOLD THAT AFTER FURTHER INSPECTION BY THE DEALERSHIP THAT THE COOLANT MIXED WITH FLUIDS AND THE ENGINE NEEDED TO BE REPLACED. I WAS QUOTED OVER $7000 TO COMPLETE THIS WORK. DURING THE COURSE OF MY RESEARCH, I HAVE LEARNED THAT A LOT OF MAZDA CUSTOMERS WHO HAVE THIS MODEL VEHICLE EXPERIENCE THIS ISSUE QUITE FREQUENTLY. I CALLED MAZDA CUSTOMER CARE AND WAS TOLD THAT MAZDA IS NOT ELECTING TO TAKE RESPONSIBILITY FOR THIS ISSUE. I WAS FORTUNATE THAT I WAS ABLE TO ARRIVE TO MY SUBDIVISION WITHOUT INJURING MY CHILDREN OR SELF, BUT THIS IS A SAFETY ISSUE THAT COULD RESULT IN THE LOSS OF LIVES IF NOT CORRECTED IMMEDIATELY.

    NHTSA complaint 11292498