2016 MAZDA CX-9 Complaints

15 minutes after getting a wheel bearing replaced at the dealer, my engine coolant high temperature warning came on (never before seen). This occurred while I was on the interstate with no safe place to stop. When I was able to safely stop, I called the dealer. They said bring it back. I was unwilling to drive that far so chose the closest Mazda dealer. They informed me I have a cracked cylinder and the coolant is leaking into exhaust system. I was told the only option due to the mileage on the car (134,000) is to replace the engine for $8,000. This appears to be a known issue so I am shocked that it wasn't being checked for prior to the problem.

Cylinder head cracked, leaking coolant and causing engine overheated , potential fire hazard . Coolant also leaked and mixed in with oil cycling through engine , causing permanent damage to the engine , resulting engine to be fully replaced

Dealer diagnosed manufacturing defect that caused crack in head. {Which could lead to engine failure, and subsequent accident due to engine failure during operation.} Engine lost coolant. No overheating noted. No warning/error codes noted.

The contact owns a 2016 Mazda CX-9. The contact stated that while driving at an undisclosed speed, the air conditioning became warm and the fan was abnormally loud. Additionally, the engine temperature gauge was high. The contact pulled over and refilled the coolant reservoir. The vehicle was taken to an independent mechanic who initially diagnosed that the water pump was faulty and needed to be replaced. However, when the contact took the vehicle back to the independent mechanic for the water pump replacement, the mechanic diagnosed that the cylinder head was warped and referred her to the dealer. The vehicle was not repaired. The dealer was made aware of the failure and informed the contact that there was no recall associated with the VIN. The manufacturer was made aware of the failure and informed the contact that there was no recall associated with the VIN and referred the contact to file a complaint with the NHTSA. The failure mileage was approximately 120,000.

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 referring a similar incident to a with different model year and date code https://static.nhtsa.gov/odi/rcl/2019/RCAK-19V770-4232.pdf Makes/Models/Model Years: MAZDA/CX-9/2019 Mfr's Report Date: October 28, 2019 NHTSA Campaign Number: 19V-770 Components: TIRES:TREAD/BELT Potential Number of Units Affected: 146 Mazda's number for this recall is 4019J

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.

- 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 PASSENGER SIDE PARTIALLY MELTED A PLASTIC SHOPPING BAG - MAZDA RESPONDED TO THE COMPLAINT THAT THE CAR WAS OUTSIDE OF THE 3-YEAR WARRANTY (EXPIRED IN MAY 2020) AND THERE WERE NO RELATED RECALLS SO THE COMPANY WAS NOT INTERESTED IN ANY TESTING OR INVESTIGATION OF THE PROBLEM ATTACHED: - PICTURE #1: TEMPERATURE IR READINGS - PICTURE #2: EFFECT OF THE OVERHEATING ON ONE OF THE OCCUPANTS

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.

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. WHEN I GOT BACK HOME, I HEARD A HISSING SOUND COMING FROM UNDER THE DASHBOARD. MAZDA'S OWNER'S MANUAL REGARDING THE ENGINE LIGHT INDICATES 1.) THE FUEL TANK LEVEL BEING VERY LOW, 2.) POSSIBLE ELECTRICAL SYSTEM PROBLEM, 3.) EMISSION CONTROL PROBLEM, OR 4.) FUEL FILLER CAP IS MISSING OR LOSE. THE NEXT MORNING I DROVE THE CX-9 TO SEE IF TIGHTENING THE GAS CAP WOULD CORRECT THE ENGINE LIGHT. DURING THE DRIVE, THE BRAKING SEEMED DIFFERENT. I WOULD PRESS THE BRAKE, BUT THE VEHICLE WOULD ROLL TO A STOP INSTEAD OF STOPPING. WHEN I WAS APPROACHING A CAR STOPPED AT A RED LIGHT, I HAD TO PRESS THE BRAKE VERY HARD TO AVOID THE VEHICLE. I PARKED IT AND CALLED THE LOCAL MAZDA DEALER. AFTER THEY PERFORMED A DIAGNOSTIC TEST, THE BRAKE BOOSTER WAS DETERMINED TO BE FAULTY. I WAS CONFUSED ABOUT HOW A BRAKE BOOSTER AND AN ENGINE LIGHT CORRELATES. I'M ALSO TRYING TO UNDERSTAND WHY THE BRAKE SYSTEM WARNING LIGHT WAS NOT ACTIVATED SINCE THIS RELATES TO THE BRAKING SYSTEM. AFTER ADDITIONAL RESEARCH, I'M IN COMPLETE DISBELIEF THAT MAZDA IS AWARE, AND IT HAS NOT DECIDED TO ADDRESS THIS SAFETY ISSUE. PLEASE TAKE ACTION TO HAVE MAZDA RECALL THE BRAKE BOOSTERS TO ADDRESS THIS ISSUE SINCE IT'S AWARE THE PROBLEM IS AN EQUIPMENT/MATERIALS ISSUE.

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 TANK AND DISPLAYED 27 MILES LEFT AND IT DIDN'T EVEN GIVE ME 1 MILE TO GET OFF THE EXIT. IT HAPPENED TO MY HUSBAND AS WELL RECENTLY AND I SPOKE TO A CERTIFIED MAZDA DEALER AND THEY EXPLAINED IT COULD BE THAT THE GAS TANK HAS A DENT CAUSING THE READING TO BE OFF OR ONE OF TWO FLOATS COULD BE DAMAGED AND NOT READING CORRECTLY. I WAS ADVISED THIS WAS A COMMON ISSUE WITH MY YEAR BUT IT'S NOT ON A RECALL. I USUALLY GET GAS WHEN IT HITS A QUARTER OF A TANK BUT NOW I'M AFRAID THAT I DO IT AT A HALF A TANK. THIS SHOULD BE A RECALL PROBLEM AS IT CAUSES THE CAR TO STALL IMMEDIATELY WHICH IS DANGEROUS. I HAD KIDS IN MY VEHICLE IN AN ICE STORM...I NEED TO HAVE THIS FIXED BUT IT'S WELL OVER $800.