What 170 owners told NHTSA about the 2011 Mazda Cx-90 Phev

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 ODI 11296688

THE TRANSFER CASE IN OUR 2011 MAZDA CX-9 FAILED AT 130,000 MILES. I UNDERSTAND THAT MAZDA KNOW ABOUT A DEFECT AS TO THE PROXIMITY OF THE TRANSFER CASE TO THE EXHAUST. THE HEATED TRANSFER CASE LUBRICANT BECOME SLUDGE-LIKE AND CAUSES THE CASE TO FAIL ALSO AFFECTING THE TRANSMISSION SPLINES. THE HEATED LUBRICANT ESCAPED AND DRIPS ON THE EXHAUST AND FILLS THE VEHICLE WITH A TOXIC SMELLING GAS AND APPARENTLY CAN LIGHT ON FIRE. THE TRANSFER CASE FAILED WHILE DRIVING MAKING GETTING OUT OF TRAFFIC DIFFICULT. MAZDA ISSUED A BULLETIN IN 2014 EXTENDING THE WARRANTY TO 7 YEARS OR 90,000 MILES BUT DIDN'T INFORM ANY OF THE CUSTOMERS OF THIS PROBLEM. THERE IS NO SERVICE SCHEDULE FOR THE TRANSFER CASE AS RECOMMENDED BY MAZDA. OR ANY WAY I UNDERSTAND TO CHANGE THE LUBRICANT IN THE TRANSFER CASE. WITHOUT INFORMING US OF THE ISSUE OR HAVING RECOMMENDED ANY PREVENTATIVE MAINTENANCE MAZA CAUSED A VERY DANGEROUS SITUATION FOR MY FAMILY. I HAVE CONTACTED MAZDA USA AND THEY HAVE BEEN UNHELPFUL.

NHTSA ODI 11281628

BRAKE BOOSTER IS LEAKING. TAKES LONGER TO STOP. CALLED MAZDA AND REPORTED ISSUE.

NHTSA ODI 11271487

BRAKE PEDAL IS VERY HARD AND VEHICLE IS NOT STOPPING WELL ALMOST CAUSING AN ACCIDENT

NHTSA ODI 11258920

OUR VEHICLE HAS LOST BRAKING POWER AND IS UNSAFE TO DRIVE ANY DISTANCE NOW. IT IS VERY DIFFICULT TO GET THE VEHICLE TO STOP AND KEEP IT STOPPED ONCE IT HAS STOPPED MOVING WITHOUT PUTTING IT IN PARK. I HAVE BEEN ADVISED THIS IS IN RELATION TO MAZDA SSP 93. MAZDA HAS ADVISED THAT IS IT MY RESPONSIBILITY TO HAVE THIS VEHICLE TOWED TO THE NEAREST DEALERSHIP, PAY FOR REPAIR LABOR, AND PAY FOR A RENTAL CAR WHILE REPAIRS ARE BEING MADE. I AM IN COMPLETE DISBELIEF THAT A KNOWN MANUFACTURER'S DEFECT RELATED TO BRAKING AND GENERAL SAFETY OF EVERYONE ON THE ROAD WAS NOT IMMEDIATELY ISSUED AS A RECALL. WE WERE PROVIDED ZERO NOTICE THAT THERE WAS EVEN POTENTIAL FOR BRAKE FAILURE.

NHTSA ODI 11259062

THE A/C EVAPORATOR TANK CONDENSATION DRAIN CLOGS. OURS HAS CLOGGED TWICE AND THE FIRST TIME THE WATER IN THE TANK WOULD SLOSH AROUND AND HEAR IT WHEN MAKING A LEFT TURN. EVENTUALLY IT RUINED THE BLOWER MOTOR TO THE A/C, WHICH HAD TO BE REPLACED. NOW 19 MONTHS LATER, WE HEARD THE WATER AGAIN AND TOOK IT IN RIGHT AWAY AND IT WAS CLOGGED AGAIN AND THE BLOWER MOTOR HAS TO BE REPLACED AGAIN. THIS IS A DESIGN DEFECT. THERE SHOULD BE A BETTER DRAIN SYSTEM. CLEARLY THIS IS AN ISSUE WITH THE MAZDA CX-9 MODEL IN SEVERAL YEARS BECAUSE THERE ARE VIDEOS OF HOW TO UNCLOG THE A/C DRAIN.

NHTSA ODI 11255039

TL* THE CONTACT OWNS A 2011 MAZDA CX-9. WHILE DRIVING 40 MPH, THE CONTACT HEARD AN ABNORMAL NOISE AND NOTICED WATER DRIPPING FROM THE SUN ROOF INTO THE INTERIOR OF THE VEHICLE ONTO THE DASHBOARD. THE CONTACT STATED THAT THE LEAK CAUSED AN ELECTRICAL SHOCK TO THE BLOWER MOTOR OF THE AIR CONDITIONER. THE VEHICLE WAS TAKEN TO LOU BACHRODT MAZDA COCONUT CREEK (LOCATED AT 5400 FL-7, COCONUT CREEK, FL 33073, (954) 247-5000) WHERE IT WAS DIAGNOSED THAT THE AIR CONDITIONER BLOWER MOTOR NEEDED TO BE REPLACED AND THE SUN ROOF NEEDED TO BE DE-CLOGGED. THE VEHICLE WAS REPAIRED, BUT CONTINUED TO EXPERIENCE THE FAILURE. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS 102,000.

NHTSA ODI 11229676

WHEN TRYING TO STOP AT AN INTERSECTION, THE BRAKES DID NOT RESPOND AS USUAL. EVEN WITH PRESSING THE BRAKE PEDAL AS HARD AS I COULD, THE STOPPING DISTANCE INCREASED BY AT LEAST 30 FEET WHICH PLACED ME IN THE MIDDLE OF THE INTERSECTION. THIS IS WORSE IN HOT CONDITIONS. THERE IS ALSO A HISSING NOISE WHEN THE BRAKE PEDAL IS DEPRESSED. THIS CONTINUES TO HAPPEN AND DOES NOT FEEL SAFE TO DRIVE. A MECHANIC SAID IT MAY BE THE POWER BRAKE BOOSTER. I NOTICED THAT THIS WAS INVESTIGATED, MAZDA ISSUED A SPECIAL SERVICE PROGRAM WHICH ENDED IN 2015. THE LETTER ISSUED AT THAT TIME SAID IT WAS NOT NECESSARY TO TAKE ACTION UNLESS THERE WAS A PROBLEM AT THAT TIME. MAZDA SHOULD EXTEND THE SERVICE PROGRAM BECAUSE THIS IS CLEARLY A SAFETY ISSUE.

NHTSA ODI 11229162

I BOUGHT THE CAR UNDER WARRANTY UP TO 90,000 MILES, WHEN I BOUGHT TRUCK 2015 AND TOOK IN WE TOLD DEALER THAT THE WAS CAR LEAKING BLACK SUBSTANCE THEY SAID THEY DID NOT SEE ANYTHING . WE TOOK IT FOR A RECALL AND TOLD THE DEALER SAME THING THIS TIME OFF AND ON IT WOULD SMELL LIKE BURN RUBBER BY THIS TIME WARRANTY WAS NOT COVERED. THE ISSUE WAS NOT DIAGNOSED UNTIL WE TOOK IT TO FOR AN OIL CHANGE AND ROUTINE INSPECTION AT 108 SOMETHING MILES THE SMELL OF BURNT RUBBER IS MORE PERSISTENT THE MECHANIC TOLD US THERE IS A LEAK IT LOOKS LIKE TRANSMISSION OIL AND IT IS DRIPPING TO AXLE.WE TOOK IN TRUCK TO FIRST MECHANIC TO GET A QUOTE HE COULD ONLY GET PART AT THE DEALER THEY SAID THAT THE WHOLE POWER TRANSFER CASE WOULD NEED TO BE CHANGE NOT JUST THE SEALS. TOOK IT IN FOR SECOND OPINION THAT MECHANIC SAID THAT THOSE PARTICULAR MODELS AND YEAR HAVE BEEN TAKEN IN FOR SAME ISSUE AND END UP HAVING TO CHANGE POWER TRANSFER CASE BECAUSE IT WAS POORLY MANUFACTURED THAT THE EXHAUST IS TO CLOSE IT MELTS RUBBERS AND LEAKS TRANSMISSION OIL THEREFORE CHANGING SEALS WILL NOT CORRECT THE PROBLEM THE WHOLE THING NEEDS TO BE CHANGE. I HAVE 3 SMALL CHILDREN AND SMELL OF RUBBER IS CONCERNING IT UPSETTING THAT THERE IS MULTIPLE CARS FROM YEAR 2011 TO 2017 WITH THESE ISSUE'S AND THERE HAS NOT BEEN A RECALL DOES A CAR NEED TO CATCH ON FIRE WITH KIDS IN IT. THIS IS A MANUFACTURING ISSUE AND SHOULD BE INVESTIGATED.

NHTSA ODI 11219466

I NOTICED A SIGNIFICANT PROBLEM BRAKING ON MY CX9 TO WHERE I HAD TO ALMOST STAND ON THE BRAKE PEDAL TO STOP. ADDED BRAKE FLUID HOPING THAT WOULD HELP BUT DID NOT. TOOK IT TO MAZDA DEALERSHIP IN BUFORD,GA AND THEY CONFIRMED THE BRAKE BOOSTER WAS CAUSING THE PROBLEM AND STRONGLY RECOMMENDED REPLACEMENT ASAP. THEY EXPLAINED THE PROBLEM IS A KNOWN ISSUE AND MAZDA EXTENDED THE WARRANTY TO 90K MILES. THE PROBLEM FOR ME WAS MY '11 CX9 HAD 107K. I HAD NO CHOICE BUT TO PAY TO HAVE THE PROBLEM FIXED DUE TO MY PERSONAL SAFETY. A COUPLE DAYS LATER I CALLED MAZDA CUSTOMER EXPERIENCE AND VOICED MY DISAPPOINTMENT THAT THIS PART WAS NEVER RECALLED AND PEOPLE ARE DRIVING AROUND IN UNSAFE CX9'S. THEY DID CONFESS THAT IF I WOULD HAVE CALLED THEM 'BEFORE' MY REPAIR THEY COULD HAVE REVIEWED THE ISSUE AND PERHAPS OFFSET SOME OF THE COST. THIS LEFT ME VERY DISAPPOINTED SINCE THEY WOULD HAVE PREFERRED I KEPT DRIVING THE CAR AND RISKED INJURY TO OTHERS WHILE THEY REVIEWED THE CASE. #CX9SADNESS

NHTSA ODI 11207231

TL* THE CONTACT OWNS A 2011 MAZDA CX-9. THE CONTACT STATED THAT THERE WAS AN INTERMITTENT FAILURE WITH THE BRAKE SYSTEM FAILING TO FUNCTION PROPERLY AS THE CONTACT HAD TO PRESS THE BRAKE PEDAL, RELEASE THE BRAKE PEDAL AND APPLY FORCE TO STOP THE VEHICLE. THE FAILURE HAPPENED MORE THAN ONCE TO THE POINT OF IT BEING A RISK THAT MAY RESULT IN A CRASH. IN ADDITION, THE VEHICLE STALLED. THE VEHICLE WAS UNSAFE TO DRIVE, PARKED AT THE OWNER'S RESIDENCE AND MAY NEED TO BE TOWED FOR REPAIRS. THE DEALER YOUNG MAZDA (191 COMMERCE PARK DR, EASTON, PA 18045, (610) 991-9100) WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED. THE VEHICLE WAS NOT INCLUDED IN NHTSA ACTION NUMBER: PE14005 (SERVICE BRAKES, HYDRAULIC). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE TO DETERMINE IF THEY HAD A TECHNICAL GUIDELINE TO REPAIR THE VEHICLE. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS NOT AVAILABLE.

NHTSA ODI 11206546

BRAKE BOOSTER FAILURE

NHTSA ODI 11204252

IN DEC. 2018, I HAD MY 2011 MAZDA CX-9 TO A MAZDA DEALER SERVICE SHOP FOR WHAT I FELT LIKE A SPONGY BRAKE PEDAL. WHEN I PICKED UP THE CAR THE SERVICE ADVISOR TOLD BE THERE IS NOTHING WRONG WITH THE CAR'S BRAKES. AFTER A FEW MONTHS, WHILE THE SYMPTOM PERSISTED, I FOUND OUT THERE IS A KNOW ISSUE WITH THE BRAKE BOOSTER, WHICH MAZDA ACKNOWLEDGED AND ISSUED A WARRANTY EXTENSION (WHICH IS EXPIRED NOW). TWO DAYS AGO, WHILE TRAVELING IN TRAFFIC ON HIGHWAY, I HAD TO STOP THE CAR DUE TO A SUDDEN TRAFFIC JAM AND I FELT THE BRAKES BEING INSUFFICIENTLY EFFECTIVE TO STOP MY CAR SAFELY. AS SUCH, I PUMPED THE BRAKE PEDAL 3-4 TIMES AND THAT CAUSED THE PEDAL TO BECOME VERY HARD AND MADE MATTERS WORST- TO A POINT WHERE I HAD TO PULL ON THE SHOULDER TO AVOID REAR-ENDING THE VEHICLE IN FRONT OF ME.

NHTSA ODI 11195633

FAILURE OF THE POWER TRANSFER CASE / POWER TRANSFER UNIT ("PTU"). THE DEFECT WAS DISCOVERED WHEN A BLACK OIL LIKE SUBSTANCE WAS FOUND UNDER THE ENGINE COMPARTMENT OF THE VEHICLE IN THE GARAGE. VEHICLE WAS TAKEN TO A MAZDA DEALERSHIP FOR INSPECTION AND DIAGNOSIS. OEM ADVISED THAT IT WAS A DEFECTIVE PTU. OEM STATES THAT IT IS A KNOWN DEFECT. INTERNET RESEARCH REVEALS THE BREADTH OF THE DEFECT. OEM STATES THAT LIMITED WARRANTY WAS EXTENDED TO 7 YEARS AND 100,000 MILES. SUBJECT VEHICLE HAS 71,000 MILES, BUT IS A FEW MONTHS OUTSIDE EXTENDED WARRANTY. OEM NEVER SENT NOTICE TO CONSUMERS ADVISING OF THE DEFECT. OEM NEVER ISSUED A RECALL FOR THE KNOWN DEFECT. OEM NEVER SENT NOTICE TO CONSUMERS ADVISING OF THE WARRANTY EXTENSION. OEM REFUSES TO COVER THE DEFECT UNDER WARRANTY. CONSUMER HAS PROMPTLY REMEDIATED ALL PRIOR KNOWN RECALLS DIRECTLY WITH OEM UPON RECEIPT OF NOTICE.

NHTSA ODI 11191440

MAZDA CX-9 2011 HAS UN-DETECTED WATER PUMP LEAKS WHICH CAUSE TO ENGINE OVERHEAT AND EVENTUAL ENGINE DEATH. MAZDA CORPORATE IS UNWILLING TO CO-OPERATE. CAR SUDDENLY CAME TO A HALT SHOWING ENGINE LIGHT ON..AND I HAD TO REPLACE THE BRAKE BOOSTER ALSO BECAUSE WHEN I WAS DRIVING THE VEHICLE IT TURN OFF ON ME EVERYWHERE AND I HAD TO PAY OUT OF MY POCKET AND IM STILL PAYING FOR THIS VEHICLE RIGHT NOW MY VEHICLE IS IN A GARAGE BECAUSE IS NOT DRIVABLE

NHTSA ODI 11183329

DIFFICULTY PUSHING THE BRAKE PEDALS AND ACHIEVING A FULL STOP. SOMETIMES CAR WOULD INCH FORWARD WHEN BRAKE APPLIED. SOMETIMES HEARING A HISSING NOISE WHEN TRYING TO APPLY THE BRAKES. THE NOISE SEEMED TO COME FROM THE AREA OF THE BRAKE PEDAL. OVERALL, BRAKES DID NOT APPEAR TO BE WORKING AS INTENDED. PRIMARILY EXPERIENCED AT LOWER SPEEDS. HAS HAPPENED REPEATEDLY OVER A FEW WEEKS.

NHTSA ODI 11181611

I STARTED NOTICING IT WAS TAKING A LONG DISTANCE FOR MY VEHICLE TO COME TO A STOP. I TOOK IT TO MY MECHANIC. WE TOOK IT FOR A TEST DRIVE AND HE CONFIRMED THERE WAS A PROBLEM WITH THE POWER BRAKE BOOSTER. WHEN HE WAS DRIVING, IF HE PRESSED ON THE BRAKE PEDAL HARD, HE COULD MAKE THE CAR HAVE A LONG "BEEP" SOUND. OTHERWISE, HE, TOO, NOTICED THE LONG DISTANCE REQUIRED FOR THE CAR TO STOP.

NHTSA ODI 11172750

OUR VEHICLE HAS WATER DRAINS OR "WEEP" LINES FOR THE SUNROOF. WE RECENTLY HAD THE ELECTRICAL SYSTEM STOP/START, DASH LIGHTS REMAIN ON CONSTANTLY AFTER SITTING IN THE DRIVEWAY DURING THE RAIN. WE LEARNED THAT IF THE DRAINS BECOME BLOCKED THAT WATER LEAKS INTO THE CABIN DIRECTLY ONTO THE BODY CONTROL MODULE (BCM). BECAUSE THE BCM IS NOT IN A SEALED OR WATER-PROOF CASE, YET IS SOAKED IN THESE CONDITIONS, THE VEHICLE IS SUBJECT TO ELECTRICAL FAILURE AS A RESULT. REPLACING THE BCM COSTS ABOUT $1,000. WHEN WE STARTED THE CAR THE DASH LIGHTS THAT WARN OF AN ISSUE WITH MANY OF THE VEHICLES SAFETY SYSTEMS REMAINED ON. OTHERS WENT OFF AND SOFT OF FLASHED. WE COULD NOT DETERMINE IF THERE WAS REALLY AN ISSUE WITH ALL OF THE COMPONENTS FLASHING ON THE DASH SO WE DID NOT WANT TO DRIVE IT FOR FEAR OF AN ACCIDENT. OUR VEHICLE WAS STATIONARY (THANK GOD). WE WAITED FOR A WHILE AND WERE ABLE TO LEAVE FOR HOME, BUT THIS CONDITION IS CLEARLY A HUGE SAFETY RISK.

NHTSA ODI 11165496

THE VEHICLE WAS IDENTIFIED AT THE DEALERSHIP AS HAVING A LEAKING TRANSFER CASE THAT NEEDED TO BE REPLACED. DURING THIS REPLACEMENT THE TRANSMISSION SPLINES WERE ALSO NOTED TO BE DAMAGED DUE TO THE FAULTY TRANSFER CASE. THEREFORE BOTH THE TRANSFER CASE AND TRANSMISSION NEEDED TO BE REPLACED AT MY EXPENSE.

NHTSA ODI 11163898

BRAKE PEDAL IS ROCK HARD AND TAKES IMMENSE PRESSURE TO PRESS DOWN TO GET BRAKES TO ENGAGE. HISSING NOISE COMING FROM UNDER DASH IT SEEMS.

NHTSA ODI 11151025

LOSS OF POWER BRAKES. EXCESSIVE BRAKE PEDAL PRESSURE NEEDED TO STOP VEHICLE. HISSING NOISE WHEN DEPRESSING BRAKE PEDAL.

NHTSA ODI 11139005

I WAS APPROACHING AN INTERSECTION WHERE I NEEDED TO STOP WITH MY CHILDREN IN THE CAR, I WENT TO HIT MY BRAKE PEDAL AND IT WAS STUCK IN THE UP POSITION AND I COULDN'T STOP, I HAD TO QUICKLY TURN MY WHEEL TO HIT THE SHOULDER OF THE ROAD TO SLOW DOWN AND TO AVOID BEING HIT IN THE INTERSECTION. THE CAR BRAKE THEN EVENTUALLY RELEASED AFTER HEARING A HISSING NOISE AND IT SLOWLY GOING INTO THE DOWN POSITION. WHEN I HAD A MECHANIC LOOK AT IT, HE EXPLAINED THAT IT CLEARLY IS A FAILURE OF THE BRAKE BOOSTER. WE RESEARCHED IT AND FOUND THAT SIMILAR ISSUES HAPPENED WITH MY MAKE AND MODEL IN THE PAST BUT MAZDA DOES NOT WANT TO HONOR THE DEFECT AS ITS SPECIAL SERVICE CALL ON IT ENDED IN 2015.

NHTSA ODI 11128392

BRAKE BOOSTER FAILURE, CAUSING BRAKES TO NOT ENGAGE WITHOUT PUMPING THE BRAKE PEDAL. NO CHECK ENGINE OR MAINTENANCE LIGHTS WERE TRIGGERED DUE TO THE FAILURE. ONLY INDICATION WAS ENGINE REVVING WHILE IDLE FOR NO APPARENT REASON AND INABILITY TO BRING THE VEHICLE TO A STOP.

NHTSA ODI 11123280

UNINFORMED ABOUT THE 2011 MAZDA CX9 BRAKE PROBLEM WHICH DID NOT SHOW UP UNTIL 8-22-2018, I WAS INFORMED THAT WHILE MAZDA EXTENDED THEIR WARRANTY, THE WARRANTY HAD ENDED IN 4-2018 OR WHEN THE CAR HAD 90,000 MILES LOGGED. (MY CAR IS AT 91,244 MILES.) THE CAR IS UNSAFE TO DRIVE, THE BRAKES ARE SUDDENLY NOT WORKING, AND THIS IS A DOCUMENTED PROBLEM WITH MY MAKE, MODEL, AND YEAR. THERE IS NO MORE IMPORTANT SAFETY FEATURE IN YOUR CAR THAN THE BRAKES. YES, TEENAGE DRIVERS ' THAT'S EVEN MORE IMPORTANT THAN BLUETOOTH CONNECTIVITY. UNFORTUNATELY, OWNERS OF THE 2010-2011 CX-9 HAVE BEEN HAVING PROBLEMS BRINGING THEIR CAR TO A STOP. THE BRAKE SYMPTOMS CX-9 OWNERS, ESPECIALLY THOSE IN HOTTER CLIMATES, HAVE BEEN TELLING HARROWING TALES OF BRAKE PROBLEMS CENTERED AROUND: THE BRAKES BECAME HARD TO PUSH, THERE WAS A HISSING NOISE FROM THE PEDAL AND THE CAR WOULD NOT STOP UNTIL THE BRAKE PETAL WAS PUMPED.

NHTSA ODI 11121818

BRAKE PEDDLE STIFF, MAKES HISSING NOISE. AT TIMES WHILE IN TRAFFIC LOSS OF BRAKING ABILITY HAPPENS.

NHTSA ODI 11115730