2016 Mazda CX-9 Problems & Owner Complaints
Age-normalised, this year draws ~9.0 complaints per year on the road — ranking 5 of 14 Mazda CX-9 years we track (1 = most complaints per year).
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What owners report
Engine is the most-reported problem area on the 2016 Mazda CX-9, cited in 61 of 99 filed complaints (62%).
Electrical System is next (14 complaints, 14%), followed by Service Brakes (11), Power Train (9), Fuel/Propulsion System (7).
Across all complaints, 3 report a crash, 1 report a fire, 3 report injuries.
The most safety-critical cluster is Structure: 1 crash, 3 injury report(s).
Complaints by vehicle system
Owner complaints filed with the U.S. NHTSA for the 2016 Mazda CX-9, grouped by the vehicle system each cites. A single complaint can name more than one system, so the group totals can add up to more than 99.
Engine 61 1 crash
“IMMEDIATELY UPON MAKING A SHARP RIGHT TURN INTO A PARKING SPOT, THE CAR SUDDENLY ACCELERATED AT A VERY FAST PACE WITHOUT ME PUSHING THE GAS PEDAL. MY IMMEDIATE REACTION WAS TO PRESS ON THE BRAKE, BUT IT DID NOT STOP. THE CAR SLAMMED INTO A PLANTER IN FRONT OF ME. THE CAR MOVED SO QUICKLY THAT IT WAS LODGED INTO THE BUSHES AND HAD TO BE PULLED OUT BY A TOW TRUCK. I IMMEDIATELY CALLED THE DEALER SERVICE DEPARTMENT AND TOLD THEM WHAT HAPPENED. THE SERVICE MANAGER'S IMMEDIATE REACTION WAS TO SCOFF AT THE IDEA THAT THE CAR ACCELERATED ON IT'S OWN. MY HUSBAND MET ME AT THE DEALER AND HAD SUBSEQUEN…”
NHTSA complaint #11057465, 2017 · crash
“In June of 2022 I started having a strong antifreeze/engine coolant smell inside the cab of my vehicle and also outside the vehicle. I had the car checked for a radiator leak, but there wasn’t one. I took my car into my local Mazda where they found that the engine coolant was leaking into the heads of the engine. Mazda kept my car for 5 months and repaired the problem, it cost me $4000 and they had added a 12 month 12,000 mile warranty for the parts. My car is a 2016 Mazda cx-9 at the time of the repair it had 70,430 miles on it. Now a few years later I am having the same issue with the coolan…”
NHTSA complaint #11697196, 2025
“Engine failure with crack in the engine after a loss of coolant fluid.”
NHTSA complaint #11632664, 2024
Electrical System 14 1 crash 1 fire
“My seat warmer caught fire and burnt a hole through the seat.”
NHTSA complaint #11582514, 2024 · fire
“IMMEDIATELY UPON MAKING A SHARP RIGHT TURN INTO A PARKING SPOT, THE CAR SUDDENLY ACCELERATED AT A VERY FAST PACE WITHOUT ME PUSHING THE GAS PEDAL. MY IMMEDIATE REACTION WAS TO PRESS ON THE BRAKE, BUT IT DID NOT STOP. THE CAR SLAMMED INTO A PLANTER IN FRONT OF ME. THE CAR MOVED SO QUICKLY THAT IT WAS LODGED INTO THE BUSHES AND HAD TO BE PULLED OUT BY A TOW TRUCK. I IMMEDIATELY CALLED THE DEALER SERVICE DEPARTMENT AND TOLD THEM WHAT HAPPENED. THE SERVICE MANAGER'S IMMEDIATE REACTION WAS TO SCOFF AT THE IDEA THAT THE CAR ACCELERATED ON IT'S OWN. MY HUSBAND MET ME AT THE DEALER AND HAD SUBSEQUEN…”
NHTSA complaint #11057465, 2017 · crash
“Smart City Break Malfunction warning light appears while driving. Simultaneously the tire pressure warning appears. Also, at the same time, the temperature reads -20 to -40 degrees. Yes, vehicle is available for inspection. Fearful that car could randomly break while driving putting myself and family in danger since there is a malfunction. Mazda service center says the problem can’t be reproduced so there’s nothing they can do. The problem seems to appear when the outside temperature is 60 degrees Fahrenheit or higher.”
NHTSA complaint #11656449, 2024
Service Brakes 11
“The vehicle has tire pressure monitoring system malfunction warnings and parking brake malfunction warnings even after taking to dealership to be fixed. Was told it’s a known problem by Mazda, should be recalled, but there were not any current recalls for the issue.”
NHTSA complaint #11559545, 2023
“Brake Booster damaged. I ended up with no brakes and nearly crashed.”
NHTSA complaint #11435767, 2021
“MY WIFE AND DAUGHTERS TOOK A TRIP, AND ON THE WAY HOME, THE ENGINE LIGHT CAME ON. WHEN TURNING ON THE ENGINE TO CHECK THE ENGINE LIGHT, I NOTICED THAT THE BRAKE PEDAL WAS HARD. I WAS THINKING THE ENGINE LIGHT HAD TO DO WITH THE GAS CAP NOT BEING ON TIGHT SINCE FAMILY PURCHASED GAS ON THE TRIP BACK HOME. I DROVE THE CX-9 TO AUTOZONE TO DETERMINE THE CODE FOR THE ENGINE LIGHT. THE ATTENDANT AT AUTOZONE WAS UNABLE TO REGISTER A CODE. HOWEVER, I NOTICED THE BRAKES FELT DIFFERENT ON THE DRIVE TO AUTOZONE. ALTHOUGH I HAD TO APPLY MORE PRESSURE TO STOP, IT TOOK LONGER TO STOP. IT ROLLED TO A STOP. WH…”
NHTSA complaint #11349951, 2020
Power Train 9 1 injury
“DRIVER STOPPED VEHICLE IN A DRIVEWAY WITH MINIMAL SLOPE, SHIFTED THE VEHICLE IN PARK, TURNED OFF THE VEHICLE AND EXITED. DRIVER PROCEEDED TO REAR PASSENGER DOOR TO RETRIEVE 1 YEAR OLD FROM CAR SEAT. AFTER RETRIEVING CHILD FROM CAR SEAT, DRIVER FELT REAR PASSENGER DOOR PUSHING INTO HER LEG, BACK AND HEAD. VEHICLE PROCEEDS TO ROLL OUT OF THE DRIVEWAY BACKWARD WHILE IN PARK. DRIVER AND CHILD ESCAPE VEHICLE'S REAR PASSENGER SIDE DOOR, WHICH IS PUSHING THEM ALONG IN THE VEHICLE'S PATH TOWARD RESIDENTIAL STREET. VEHICLE CONTINUES ROLLING IN PARK BACKWARD DOWN RESIDENTIAL STREET, THROUGH A 3-WAY STOP…”
NHTSA complaint #11268666, 2019 · 1 injury(ies)
“August 2nd I noticed a smell of Coolant coming from my car. I looked under my car and noticed it leaking green coolant. I took it to Mazda where they had it for 7 days to then give me a $6,300 estimate with possible added expenses. They diagnosed it as a cracked cylinder head and needs a gasket as well. I am a single mother and have work but I cannot afford that repair especially since Mazda is not going to honor there vehicle and what they stand by. With this issue with the coolant leak and the cracked cylinder the vehicle could have overheated and go into limp mode and come to a sudden sto…”
NHTSA complaint #11611282, 2024
“I started smelling coolant after exiting the vehicle from a drive. Coolant level was very low. Adding coolant did not last long. I could not see where the leak was. The dealership evaluated and determined I had a cracked cylinder head and the car is leaking coolant near the rear of the engine. This could cause the engine to seize should coolant get into the engine. The dealer (New Rochelle Mazda) explains the cylinder head needs replacing. The dealer also observed bad rear sway bar links. One was detached. The car is serviced at the same dealership every 5k miles. The car has approximately 85…”
NHTSA complaint #11578122, 2024
Fuel/Propulsion System 7
“Vehicle “surges” at idle. 300-500 RPMS at a time. Sometimes the brakes hold and sometimes not. Have nearly been in 3 collisions the last 2 days because of this issue. The ECM codes indicate throttle body or TPS issue, both of which have been unfounded. Vehicle has 63,000 miles. Researching this topic online found that many others have had this issue with no associated safety recalls noted. I am hoping to bring light to this so someone doesn’t have to be injured or killed to have this rectified.”
NHTSA complaint #11575368, 2024
“Traveling on the highway going on a road trip. Had vehicle inspected prior and no fuel system problems were noted. I was going 75mph with my family when there was a coasting feeling in the car. I looked and my check engine light popped on and my car immediately would not accelerate and we quickly lost speed. By the grace of God were we able to pull over safely! Code P0132 was the engine code and after an hour, the engine light went back off and we were able to keep a safe speed traveling home. After speaking with a mechanic and dealership, I learned that this was a common problem with the Dens…”
NHTSA complaint #11472060, 2022
“I JUST PURCHASED MY VEHICLE ABOUT 3 MONTHS AGO. I WAS RUNNING ERRANDS ABOUT A WEEK AFTER PURCHASE AND WAS HEADING HOME ON THE HIGHWAY WHEN THE GAS NOTIFICATION CAME ON DISPLAYING 27 MILES LEFT AND ADVISED ME TO GET GAS. I WAS ABOUT HALF MILE FROM THE EXIT AND THE VEHICLE CHECK ENGINE LIGHT CAME ON AND IT STARTED STALLING. THANK FULLY I WAS ABLE TO GET OVER TO THE MEDIAN JUST IN TIME WHEN IT SHUT DOWN COMPLETELY. I CALLED ROADSIDE AND THE DEALER AND EXPLAINED WHAT HAPPENED. I HAD IT TOWED BACK TO THE DEALER AND THEY ADVISED ME IT WAS BECAUSE I RAN OUT OF GAS. I EXPLAINED IT HAD A QUARTER OF A T…”
NHTSA complaint #11322582, 2020
Unknown Or Other 6
“The clips on both my rear molding over the tires have broken causing the molding/trim to fall off while I have been driving”
NHTSA complaint #11480459, 2022
“I JUST PURCHASED MY VEHICLE ABOUT 3 MONTHS AGO. I WAS RUNNING ERRANDS ABOUT A WEEK AFTER PURCHASE AND WAS HEADING HOME ON THE HIGHWAY WHEN THE GAS NOTIFICATION CAME ON DISPLAYING 27 MILES LEFT AND ADVISED ME TO GET GAS. I WAS ABOUT HALF MILE FROM THE EXIT AND THE VEHICLE CHECK ENGINE LIGHT CAME ON AND IT STARTED STALLING. THANK FULLY I WAS ABLE TO GET OVER TO THE MEDIAN JUST IN TIME WHEN IT SHUT DOWN COMPLETELY. I CALLED ROADSIDE AND THE DEALER AND EXPLAINED WHAT HAPPENED. I HAD IT TOWED BACK TO THE DEALER AND THEY ADVISED ME IT WAS BECAUSE I RAN OUT OF GAS. I EXPLAINED IT HAD A QUARTER OF A T…”
NHTSA complaint #11322582, 2020
“FAILS TO ACCELERATE AND CHANGE GEARS. THIS HAS BEEN HAPPENING SINCE WE PURCHASED THE VEHICLE. IT HAS BEEN BACK TO THE DEALERSHIP MULTIPLE TIME AND HAS NOT BEEN RESOLVED. THEY ARE UNABLE TO FIND ANYTHING WRONG. THE ENGINE IS A 2.5 L TURBO. THIS HAPPENS UNEXPECTEDLY WHILE DRIVING MAKING IT HARD TO GET ON TO THE HIGHWAY OR CHANGE LANES.”
NHTSA complaint #11233883, 2019
Structure 4 1 crash 3 injury
“I WAS T-BONED ON PASSENGER SIDE OF MY MAZDA CX9 AIR BAGS DID NOT WORK ON MY MAZDA.OTHER VEHICLE AIR BAGS DID GO OFF.I WAS TRAVELING ABOUT 45 MPH WHEN OTHER CAR PLOWED INTO MINE.”
NHTSA complaint #11149815, 2018 · crash · 2 injury(ies)
“DRIVER STOPPED VEHICLE IN A DRIVEWAY WITH MINIMAL SLOPE, SHIFTED THE VEHICLE IN PARK, TURNED OFF THE VEHICLE AND EXITED. DRIVER PROCEEDED TO REAR PASSENGER DOOR TO RETRIEVE 1 YEAR OLD FROM CAR SEAT. AFTER RETRIEVING CHILD FROM CAR SEAT, DRIVER FELT REAR PASSENGER DOOR PUSHING INTO HER LEG, BACK AND HEAD. VEHICLE PROCEEDS TO ROLL OUT OF THE DRIVEWAY BACKWARD WHILE IN PARK. DRIVER AND CHILD ESCAPE VEHICLE'S REAR PASSENGER SIDE DOOR, WHICH IS PUSHING THEM ALONG IN THE VEHICLE'S PATH TOWARD RESIDENTIAL STREET. VEHICLE CONTINUES ROLLING IN PARK BACKWARD DOWN RESIDENTIAL STREET, THROUGH A 3-WAY STOP…”
NHTSA complaint #11268666, 2019 · 1 injury(ies)
“I have noticed cracks on both sides of the front bumper on my 2016 Mazda CX-9. Mazda has issued a TSB 09-022-20-3720, however, the cracks recently appeared and my car is no longer under the manufacturer's warranty.”
NHTSA complaint #11468688, 2022
Seats 3 1 crash 1 fire
“My seat warmer caught fire and burnt a hole through the seat.”
NHTSA complaint #11582514, 2024 · fire
“AFTER A MINOR REAR END ACCIDENT, THE DRIVER FRONT SEAT NOW ROCKS SIDE TO SIDE AND IS DISTRACTING AND UNSAFE. IT WAS TAKEN TO THE LOCAL MAZDA DEALERSHIP THAT PROVIDED AN INSPECTION AND SAID THAT THERE IS NO PROBLEM WITH THE SEAT. THEY STATE THAT IT IS NORMAL FOR THEIR SEATS TO ROCK SIDE TO SIDE. HOW UNSAFE AND FRIGHTENING. PLEASE SEE ATTACHED DOCUMENTATION FROM THE DEALERSHIP.”
NHTSA complaint #10926822, 2016 · crash
“- THE CAR WAS PURCHASED NEW FROM A MAZDA DEALER IN MAY 2017 - THE DRIVER SIDE CUSHION HEATER FAILED IN MARCH 2020. - THE PASSENGER SIDE CUSHION HEATER FAILED IN NOVEMBER 2020 - BOTH SIDES EXHIBITED THE SAME PROBLEM DESPITE THE FACT THAT THE USAGE OF THE PASSENGER SIDE WAS ABOUT 25% OF THE DRIVER - FROM THE TIME THE CUSHION HEATERS FAILED, WE OBSERVED RANDOM OVERHEATING OF THE BACK HEATERS AND RECORDED "HOT SPOTS" OF UP TO 149 DEG F (PICTURE ATTACHED) - WHILE THE CUSHION HEATERS DON'T OPERATE, THE BACKS GET TOO HOT FOR OCCUPANTS (ATTACHED PICTURE OF SKIN REACTION) AND AT ONE POINT THE PAS…”
NHTSA complaint #11396524, 2020
Vehicle Speed Control 3
“Vehicle “surges” at idle. 300-500 RPMS at a time. Sometimes the brakes hold and sometimes not. Have nearly been in 3 collisions the last 2 days because of this issue. The ECM codes indicate throttle body or TPS issue, both of which have been unfounded. Vehicle has 63,000 miles. Researching this topic online found that many others have had this issue with no associated safety recalls noted. I am hoping to bring light to this so someone doesn’t have to be injured or killed to have this rectified.”
NHTSA complaint #11575368, 2024
“As I am accelerating to merge onto the highway from an on-ramp, while the gas pedal is depressed, I will get a series of sensor alerts simultaneously (city brake malfunction, park assist malfunction, lane assist malfunction, etc.) and my gas pedal becomes non-functional at 60-70mph. It is terrifying especially when there is other traffic around my vehicle. This exact issue has happened 6 times within the past 12-18 months at seemingly random intervals but always when I am accelerating onto the highway at 50-70mph. I typically pull off to the side of the highway and turn off the vehicle. Af…”
NHTSA complaint #11545342, 2023
“Traveling on the highway going on a road trip. Had vehicle inspected prior and no fuel system problems were noted. I was going 75mph with my family when there was a coasting feeling in the car. I looked and my check engine light popped on and my car immediately would not accelerate and we quickly lost speed. By the grace of God were we able to pull over safely! Code P0132 was the engine code and after an hour, the engine light went back off and we were able to keep a safe speed traveling home. After speaking with a mechanic and dealership, I learned that this was a common problem with the Dens…”
NHTSA complaint #11472060, 2022
Wheels 3
“The vehicle has tire pressure monitoring system malfunction warnings and parking brake malfunction warnings even after taking to dealership to be fixed. Was told it’s a known problem by Mazda, should be recalled, but there were not any current recalls for the issue.”
NHTSA complaint #11559545, 2023
“Rear wheel trim partially detached from car while driving, safety risk of large plastic part being caught in rear wheel. Did not hit any debris but heard a loud noise as the part detached. Part is supposed to be held in place by 12 clips but multiple owners of Mazda CX-5 and CX-9 models report this problem. Mazda dealers deny there is a problem even when some new cars have only 3 clips installed. When I called Mazda USA to report, and asked them specifically for a federal government contact to report safety issues, they said calling them was the ONLY way to report an issue, which was not corre…”
NHTSA complaint #11477840, 2022
“I HEARD A PINGING SOUND COMING FROM ONE OF THE WHEELS. WHEN I GOT OUT AND LOOKED, I DISCOVERED THE WHEELS ARE BEGINNING TO FLAKE AND DEGRADE. I CONTACTED MAZDA CUSTOMER SERVICE AND WAS TOLD I WOULD HAVE TO COVER THE COST OF REPLACEMENT AS THE VEHICLE IS OUT OF WARRANTY.”
NHTSA complaint #11412830, 2021
Air Bags 2 1 crash 2 injury
“I WAS T-BONED ON PASSENGER SIDE OF MY MAZDA CX9 AIR BAGS DID NOT WORK ON MY MAZDA.OTHER VEHICLE AIR BAGS DID GO OFF.I WAS TRAVELING ABOUT 45 MPH WHEN OTHER CAR PLOWED INTO MINE.”
NHTSA complaint #11149815, 2018 · crash · 2 injury(ies)
“Intermittent Airbag Warning Light (Code 18), Passenger Airbag Deactivation light not operating and no warning chime indicating unbuckled passenger side seat belt. The safety issue appears to be related to the airbag and related safety equipment. In the dash, within the speed and rpm display, the red airbag warning light is blinking, reporting from what I gather is a CODE18, as it blinks once, followed by a pause, followed by eight blinks. It appears to be linked an inoperable PAD warning light, which should be on while no one is sitting in the passenger seat and off while someone is sitting o…”
NHTSA complaint #11481519, 2022
Engine And Engine Cooling 2
“The contact owns a 2016 Mazda CX-9. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated, and the vehicle started shuddering and overheating. The vehicle was taken to an independent mechanic who diagnosed the vehicle and determined that the failure was related to a cracked head gasket. The vehicle was not repaired. The contact related the failure with the Technical Service Bulletin: 01-03/21; however, the vehicle was not included. The manufacturer was not notified of the failure. The failure mileage was approximately 92,000.”
NHTSA complaint #11596496, 2024
“The contact owns a 2016 Mazda CX-9. The contact stated that while driving at an undisclosed speed, the vehicle stalled. Several unknown warning lights illuminated. The contact stated after the vehicle cooled off, the was able to be restarted. The contact checked under the vehicle and stated that there was coolant leaking on the ground. The vehicle was taken to an independent mechanic, where it was diagnosed with a coolant leak behind the engine. The vehicle was not repaired. The contact related the failure to Technical Service Bulletin: 01-002/23. The dealer referred the contact to the manufac…”
NHTSA complaint #11591593, 2024
Forward Collision Avoidance 2
“Smart City Break Malfunction warning light appears while driving. Simultaneously the tire pressure warning appears. Also, at the same time, the temperature reads -20 to -40 degrees. Yes, vehicle is available for inspection. Fearful that car could randomly break while driving putting myself and family in danger since there is a malfunction. Mazda service center says the problem can’t be reproduced so there’s nothing they can do. The problem seems to appear when the outside temperature is 60 degrees Fahrenheit or higher.”
NHTSA complaint #11656449, 2024
“On 04/21/22, I took my car to the dealer after noticing antifreeze on our garage floor and a burning smell. NO check engine lights had illuminated. They proceeded to tell me that there was a coolant leak from head/block and cavity leak (something about channel pressure). They also stated this was a casting flaw during manufacturing of the engine. They told me I needed a whole new engine for $8,479.97! Mazda corporate refused to replace the engine at their cost because I had 64,575 miles on it and it was out of powertrain warranty. I called them and asked to speak to a supervisor and never hear…”
NHTSA complaint #11474135, 2022
Steering 2
“1. What component or system failed or malfunctioned, and is it available for inspection upon request? The entire electrical system is malfunctioning. All dashboard service lights (check engine, ABS, etc.) illuminate simultaneously, causing the vehicle to stutter and shut off while driving. The vehicle is available for inspection. 2. How was your safety or the safety of others put at risk? This issue has resulted in a dangerous situation, particularly when the vehicle lost power on the highway with my young children aboard. This sudden loss of control could have led to a severe accident. 3. H…”
NHTSA complaint #11613534, 2024
“VEHICLE MAKES A CRANKING NOISE WHEN STEERING AT A SLOW SPEED MEANING WHEN TURNING, REVERSING OR SLOWLY GOING OVER SPEED BUMPS IT MAKES A CRANKING NOISE ITS COMING FROM THE FRONT OF VEHICLE I DON'T KNOW IF THAT NORMAL HAS BEEN LIKE THAT SINCE I BOUGHT THE VEHICLE, IT WAS TAKEN IN DUE TO A RECENT RECALL COUPLE MONTHS AGO FOR THE REAR SAME ISSUES WITH A CRANKING NOISE, NOW IT'S THE FRONT.”
NHTSA complaint #11115498, 2017
Suspension 2 1 crash 2 injury
“I WAS T-BONED ON PASSENGER SIDE OF MY MAZDA CX9 AIR BAGS DID NOT WORK ON MY MAZDA.OTHER VEHICLE AIR BAGS DID GO OFF.I WAS TRAVELING ABOUT 45 MPH WHEN OTHER CAR PLOWED INTO MINE.”
NHTSA complaint #11149815, 2018 · crash · 2 injury(ies)
“I started smelling coolant after exiting the vehicle from a drive. Coolant level was very low. Adding coolant did not last long. I could not see where the leak was. The dealership evaluated and determined I had a cracked cylinder head and the car is leaking coolant near the rear of the engine. This could cause the engine to seize should coolant get into the engine. The dealer (New Rochelle Mazda) explains the cylinder head needs replacing. The dealer also observed bad rear sway bar links. One was detached. The car is serviced at the same dealership every 5k miles. The car has approximately 85…”
NHTSA complaint #11578122, 2024
Visibility/Wiper 2
“MULTIPLE TIMES WHILE DURING INCLEMENT WEATHER, POURING RAIN/SLEET, THE DRIVER'S SIDE WINDSHIELD WIPER BLADE FLEW OFF OF THE CAR - CAUSING A SAFETY ISSUE WITH VISIBILITY. WE HAD TO PULL OVER TO THE SIDE OF THE HIGHWAY AND SWITCH TO THE PASSENGER SIDE'S WIPER BLADE, SO THAT WE COULD GET TO A SAFER PLACE TO BE OUT OF THE WAY OF TRAFFIC. IT WAS NIGHT TIME DURING ONE INCIDENT AND DAYTIME DURING THE OTHER. THE ISSUE SEEMS TO BE THE WAY THE WIPER BLADE ATTACHES TO THE ARM.”
NHTSA complaint #11364569, 2018
“SUNROOF EXPLODED WHILE DRIVING APPROX 40 MPH. WERE IN A VALLEY ON VACATION IN COLORADO, NO TREES OR ANYTHING OVERHEAD WHEN THIS HAPPENED. WE HAD JUST CLOSED THE WINDOWS AND TURNED ON THE AIR CONDITIONER AS IT WAS GETTING HOT. ABOUT 2 MINUTES LATER WE HEARD A LOUD EXPLOSION. ONLY WHEN WE PULLED OVER DID WE DISCOVER IT WAS THE SUNROOF.”
NHTSA complaint #11113072, 2018
Electronic Stability Control (Esc) 1
“THIS INCIDENT HAPPENED ON 31ST JULY, WHEN MY WIFE WAS DRIVING THIS CAR ON HIGHWAY 4 MARTINEZ, CA AT AROUND 5.00 PM WITH OUR DAUGHTER (2 YEARS OLD) RETURNING FROM DAYCARE. SHE WAS DRIVING AT APPROX 60 MILE/HR, WHEN THE CAR STARTED GIVING AUDIO VISUAL WARNINGS ON MULTIPLE FAILURES AND THE CAR STARTED SLOWING DOWN WITHOUT RESPONDING TO THE GAS PEDAL AND ENGINE PROPULSION REDUCED TO 'ZERO'. MY WIFE PANICKED AND WAS LUCKILY ABLE TO PULL OVER ON THE CURB SIDE SAFELY, EVEN THOUGH TRAFFIC WAS VERY HIGH. SHE STOPPED THE CAR AND TURNED OFF THE ENGINE AND WAITED FOR 10 MINS AND RESTARTED THE CAR MULTIPL…”
NHTSA complaint #11118566, 2018
Fuel System 1
“IN 2017, MY CAR SHUT OFF TWO TIMES, WITHOUT WARNING, ONE TIME AT A STOP LIGHT AND AGAIN ON THE HIGHWAY GOING 70MPH. WE WERE ACCELERATING AT THE STOP LIGHT WHEN IT SHUT OFF AND THEN DRIVING ON THE HIGHWAY. TOOK THE CAR TO THE DEALERSHIP AND 72 CODES CAME UP. THEY SAID IT WAS THE DVD PLAYERS (THAT THEY SOLD AND INSTALLED!!!) THAT WERE CAUSING THE ISSUE. THEY SUPPOSEDLY 'FIXED' THE ISSUE. NOW IN JULY 2019, THE CAR SHUT OFF AN ADDITIONAL FIVE TIMES. THREE TIMES WHILE DRIVING AND TWICE IN A PARKING LOT. WE WERE ON A HIGHWAY AGAIN WHEN THE CAR JUST SHUT OFF WITH NO WARNING, LIGHTS ON THE DASH STA…”
NHTSA complaint #11234063, 2019
Tires 1
“P 255 / 50 R 20 104V M+S tread physically detached while driving at 70MPH Was able to steer and stop the vehicle and avoid a crash, partially due to fewer traffic on the road and the tire in question was on the rear driver side. Was able to replace the tire with my insurance. However no intimation about the failure was mentioned or no further action taken about safety of other tires previously on the vehicle The incident took place suddenly with a huge noise due to the broken tire hitting the wheel well and ripping off the fender. The accident happened on 17th Apr 2019 A supporting link…”
NHTSA complaint #11433742, 2019
How we read this (methodology)
How to read this: raw complaint totals are not a clean reliability score — a model year with more cars sold, or simply more years on the road, accumulates more complaints regardless of how good it is. So this page leans on two signals that are not distorted by sales volume: the share of complaints falling on each vehicle system (the breakdown above) and NHTSA's own crash / fire / injury / death flags. When we compare model years of the same model, we normalise by years on the road (complaints ÷ vehicle age) rather than comparing raw totals. Age-normalised, the 2016 Mazda CX-9 draws about 9.0 complaints per year on the road, ranking 5 of 14 among the Mazda CX-9 model years we have ingested (1 = most complaints per year on road).
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Data source: U.S. NHTSA (nhtsa.gov). SaveVIN surfaces public recall data and is not affiliated with or endorsed by NHTSA.