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

BRAKES RESIST WHEN TRYING TO STOP, TAKING LONGER TO COME TO COMPLETE STOP(AT ANY SPEEDS). ONCE STOPPED BRAKE COMPRESSES ALL THE WAY DOWN ON ITS OWN, FEELS LIKE THE CAR WILL START ROLL. WHEN APPLYING BRAKES IT MAKES AN AIR DECOMPRESSION SOUND. WHEN BACKING OUT OF PARKED POSITION AND BRAKING, CAR COASTS A LITTLE WHEN BRAKES ARE COMPLETELY PRESSED DOWN. VERY DANGEROUS ISSUE THAT I REALIZED WAS RELATED TO THE EXTENDED WARRANTY BRAKE BOOSTER ISSUE THAT I RECEIVED EARLIER IN THE YEAR. I ATTEMPTED TO GET THIS REPAIR AT THE FIRST SERVICE I SCHEDULED AFTER RECEIVING NOTICE AND MAZDA SERVICE DEPARTMENT REFUSED TO COMPLETE SERVICE BECAUSE THEY DIDN'T THINK MY CAR NEEDED IT.

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BRAKES HAVE SUDDENLY BECOME ERRATIC. OFTEN THEY ARE "HARD" AND REQUIRE EXCESSIVE PRESSURE TO GET THE VEHICLE TO STOP. MY RESEARCH SHOWS THIS IS A KNOWN ISSUE WITH THIS YEAR AND MODEL, AND MAZDA EXTENDED THEIR WARRANTY TO COVER THE ISSUE; HOWEVER, THAT EVIDENTLY DOES NOT APPLY TO SECOND OWNERS.

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THERE IS AN ISSUE WHEN USING THE BRAKES WHERE THERE'S A LOSS OF POWER ASSIST MAKING THE BRAKES REALLY HARD TO PUSH AT TIMES, A SUDDEN LOSS OF BRAKING ABILITY WITH SUPER SPONGY PEDALS, AND A STRANGE, HISSING NOISE COMING FROM THE PEDAL AREA. THESE ISSUES HAPPEN CONCURRENTLY WHEN DRIVING IN THE CITY OR HIGHWAY AND WHENEVER THE CAR IS IN REVERSE OR DRIVE.

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MY CAR IS HAVING A RECALL REPAIRED FOR SOME FRONT END ISSUE. IN SEPT 2015 I TOOK MY CAR IN FOR INSPECTION, AND ALL 4 TIRES HAD GREAT TREAD ON THEM. MAZDA DIDN'T HAVE PARTS IN SEPTEMBER TO FIX MY CAR. BETWEEN SEPTEMBER 2015, AND APRIL 2016 MY DRIVERS SIDE FRONT TIRE IS BALD ON THE OUTSIDE TO THE POINT IT'S ALMOST UNSAFE TO DRIVE. IT IS THE ONLY TIRE THAT IS LIKE THIS.. ALL 4 TIRES WERE REPLACED AT THE SAME TIME ABOUT TWO YEARS AGO. PAUL MILLER MAZDA CALLED ME AND INFORMED ME I NEEDED NEW TIRES AND AN ALIGNMENT AND I INFORMED THEM IT HAD TO BE RELATED TO THE RECALL DUE TO ONLY THAT TIRE, AND THE FACT THAT THE TREAD WAS THE SAME AS THE OTHER TIRES IN SEPTEMBER. WE COULD FEEL THE FRONT END ISSUES IN THE VEHICLE FOR 7 MONTHS WAITING ON THE PARTS. I AM NOW STUCK HAVING TO BUY A NEW TIRE AND PAY FOR AN ALIGNMENT OUT OF MY OWN POCKET BECAUSE IT OOK THEM 7 MONTHS TO GET PARTS IN TO FIX MY MAZDA.

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BRAKES ARE MAKING A HISSING SOUND WHEN YOU PRESS DOWN. THE BRAKES ARE HARD TO PUSH AND THE VEHICLE IS NOT STOPPING PROPERLY.

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TL* THE CONTACT OWNS A 2011 MAZDA CX-9. WHILE COMING TO A STOP AT 10 MPH, THE BRAKE PEDAL FELT SQUISHY. WHEN THE BRAKE PEDAL WAS DEPRESSED, THE BRAKE PEDAL WOULD ALMOST TRAVEL TO THE FLOORBOARD. THE FEELING WAS ALSO PRESENT WHILE THE VEHICLE WAS STOPPED AT A STOP LIGHT. THREE MONTHS LATER, THE CONTACT HEARD AN AIR NOISE WHEN THE BRAKES WERE BEING APPLIED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT COULD NOT BE DIAGNOSED; HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000.

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TL* THE CONTACT OWNS A 2011 MAZDA CX-9. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 15V451000 (SUSPENSION); HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE.

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SAME ISSUE AS EVERYONE ELSE HISSING WHEN BRAKES ARE COMPRESSED -OR CAR IS STOPPED AND BAD OR LAGGING IN BRAKING. MY BRAKES WERE COMPLETELY DOWN TO THE FLOOR AND THE CAR KEPT SLOWLY TRYING TO ROLL. I HAD TO PUMP THE BRAKES. OR PUT THE CAR IN PARK. WHEN I LET THE BRAKES GO NO HISSING

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BRAKES ARE NOT WORKING PROPERLY OR CONSISTENTLY. SOMETIMES HAVE TO PRESS TOO HARD ON BRAKES AND OTHER TIMES IT WORKS FINE. ALSO, BRAKES ARE MAKING A HISSING SOUND LIKE AIR COMING OUT OF TIRE.

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TL* THE CONTACT OWNS A 2011 MAZDA CX-9. THE CONTACT STATED THAT WHILE STOPPED AT A STOP LIGHT, THE ACCELERATOR PEDAL WAS DEPRESSED BUT THE VEHICLE FAILED TO ACCELERATE AS THE WARNING INDICATORS FLASHED AND THE ENGINE STALLED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 66,727. UPDATED 06/15/16*LJ THE CONSUMER STATED SHE ACCELERATED FROM A STOP LIGHT, AS SHE TURNED THE CORNER. SHE THEN REALIZED, SHE COULD NOT BRAKE, OR STEER THE VEHICLE. SHE HIT THE EMERGENCY BRAKE AND TURNED THE VEHICLE OFF. THE DEALER BELIEVED IT WAS A VACUUM PROBLEM AS SHE BRAKED SLIGHTLY WHEN SHE TURNED THE CORNED. UPDATED 06/16/16.*JB

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SEVERAL TIMES WHEN THE VEHICLE IS IN MOTION, AND THE DRIVER ATTEMPTS TO APPLY THE BRAKES, THE PEDAL SEEMS UNRESPONSIVE. DURING THESE INCIDENTS, THE BRAKE PEDAL IS VERY HARD TO APPLY, NEARLY IMPOSSIBLE. THANKFULLY WHEN THIS TRANSPIRED (5-10 TIMES OVER THE LAST 2-3 WEEKS), WE WERE TRAVELING RELATIVELY SLOWLY. AFTER EXERTING MUCH MORE THAN NORMAL FORCE, THE BRAKE PEDAL SEEMS TO DEPRESS AND HELP BRING THE VEHICLE TO A STOP, ALTHOUGH NOT AT THE NORMAL RATE OF BRAKING. ADDITIONALLY, DURING ONE OF THESE INCIDENTS, WHICH HAPPENED TODAY, THE BRAKES REMAINED ENGAGED, AND THE CAR WOULD NOT MOVE, EVEN AFTER SHIFTING TO PARK, AND TURNING OFF THE ENGINE. EVENTUALLY, AFTER SHUTTING OFF THE ENGINE A SECOND TIME AND WAITING AWHILE, THE BRAKES RELEASED. THIS INCIDENT OCCURRED WHILE DRIVING ON CITY STREETS, AND TRYING TO STOP AT A RED LIGHT. MOST OF THE OTHER INCIDENTS HAVE OCCURRED DURING CITY DRIVING, BUT THEY HAVE ALSO OCCURRED WHILE DRIVING ON THE HIGHWAY AS WELL.

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TL* THE CONTACT OWNS A 2011 MAZDA CX-9. WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE WOULD NOT HAVE ADEQUATE POWER TO GO UP OR DOWN HILLS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE TRANSFER CASE OF THE VEHICLE FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 48,000. ....UPDATED 03-31-16 *BF *CN

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TL* THE CONTACT OWNS A 2011 MAZDA CX-9. WHILE DRIVING AT 70 MPH, THE VEHICLE STALLED. THE CONTACT WAS UNABLE TO RESTART THE VEHICLE. ALL THE WARNING LIGHTS ON THE INSTRUMENT PANEL ILLUMINATED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO WAS UNABLE TO DIAGNOSE OR REPAIR THE VEHICLE AND STATED THAT THE THEFT SYSTEM HAD TAKEN OVER THE VEHICLE. THE VEHICLE WAS TOWED TO A DEALER, BUT THE CONTACT WAS UNSURE ABOUT THE PART THAT NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 74,000.

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HISSING NOISE WHEN PRESSING BRAKE PEDAL. IF FEELS LIKE MORE FORCE IS NEEDED TO STOP VEHICLE. LOUD NOISE FROM TRANSMISSION WHEN SHIFTING FROM PART TO DRIVE/REVERSE

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WHEN BREAKING I HEAR A HISSING NOISE AND FOUND OUT MY BREAK BOASTER WAS GOING BAD.

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HISSING SOUND WHEN APPLYING BRAKES, BRAKE FEELS STIFF. HAVE AN APPOINTMENT TOMORROW (THEY SAID IT SHOULD BE OK TO DRIVE UNTIL THEN), SAID IT WAS PROBABLY THE MASTER CYLINDER FAILING.

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I HAVE RECENTLY EXPERIENCED TROUBLE WITH MY BRAKES. IT HAS BEEN VERY DIFFICULT TO COME TO A COMPLETE STOP NO MATTER WHAT MY SPEED IS. IT FEELS LIKE I HAVE TO PUSH VERY HARD TO GET THE BRAKES TO ENGAGE. ALSO, I HEAR A HISSING NOISE, LIKE AIR COMING OUT OF THE TIRES WHEN PRESSING ON THE BRAKE PEDAL. NO WARNING LIGHTS HAVE COME ON. I TOOK THE CAR INTO JUST BRAKES LAST NIGHT AND AM WAITING FOR AN ASSESSMENT. THE MECHANIC SAID IT SOUNDED LIKE A PROBLEM WITH THE POWER BOOSTERS.

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WHEN PRESSING THE BRAKES AT ANY SPEED THERE WAS A HISSING SOUND AND THE BRAKES WERE HARD TO PRESS. REGARDLESS OF THE AMOUNT OF PRESSURE I APPLIED TO THE BRAKES THEY DID NOT REACT AND IT TOOK THE VEHICLE LONGER TO SLOW DOWN EVEN AT VERY LOW SPEEDS (5-10 MPH) OR FASTER. THIS CAME ON SUDDENLY AND CAUSED ME TO BRING THE VEHICLE INTO THE SERVICE DEPARTMENT OF THE THE DEALERSHIP WHERE I PURCHASED IT. THE MAZDA TECHNICIAN INSPECTED THE VEHICLES AND COMPLETED A DIAGNOSTICS OF THE VEHICLE AND DISCOVERED THAT THE MASTER CYLINDER AND BRAKE BOOSTER HAVE FAILED AND NEED TO BE REPLACED.

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THE POWER STEERING ASSIST FAILED AND IT WAS IMPOSSIBLE TO BACK THE CAR OUT OF A PARKING SPACE. AFTER MOVING THE CAR BACK AND FORTH AND SLIGHTLY TURNING THE STEERING WHEEL THE POWER ASSIST CAME BACK. IT IS IMPOSSIBLE TO MAKE A TURN WITHOUT THE POWER ASSIST. THIS PROBLEM PERSISTS AND HAPPENS AT LOW SPEED OR WHEN I AM STOPPED AND TRYING TO MAKE A TURN. AS LONG AS I AM MOVING THE POWER ASSIST SEEMS TO WORK.

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ON 24 JULY 2015, WHILE DRIVING HOME FROM WORK, THE DRIVER IN FRONT OF ME EXECUTED AN EMERGENCY BRAKING TO AVOID A COLLISION WHICH CAUSED ME TO DO THE SAME. FROM THE MOMENT I TRIED TO ACTUATE THE BRAKE PEDAL, IT FELT AS IF THE PEDAL WAS IN THE FLOOR AND IMMOVABLE. LITTLE, IF ANY, BRAKE FORCE WAS APPLIED AND REQUIRED BOTH FEET WITH ALL THE POWER OF MY LEGS TO GET EVEN A SMALL AMOUNT OF BRAKING. I HAD TO IMMEDIATELY DIVE INTO THE MEDIAN AT SPEEDS OF 60-65 MPH TO AVOID HITTING THE CAR IN FRONT OF ME. THIS CAUSED TWO TIRES TO HAVE TO BE REPLACED. WHEN I LEFT MY PARKING GARAGE AND ALL THE WAY TO THE FREEWAY, BRAKING WAS NORMAL. NO DASH LIGHTS WERE ACTIVE NOR ARE THEY NOW. THE ISSUE PERSISTS NOW AND DRIVING THE VEHICLE IS NOT AN OPTION.

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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

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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.

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BRAKE PEDAL IS VERY HARD TO PUSH IN. TRIED TO STOP AT A LIGHT AND THE BRAKES WOULDN'T STOP THE CAR, LUCKILY THERE WAS'T SOMEONE IN FRONT OF ME. BRAKES FEEL LIKE I AM PUSHING AGAINST A WALL, ALSO CAN HEAR A HISSING OR LEAKING SOUND WHEN I TRY TO PUSH THE BRAKES.

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THE BRAKES DID NOT RESPOND TO TYPICAL PRESSURE REQUIRED TO STOP... WHEN I PUSHED HARDER ON THE BRAKE PEDAL IT FELT LIKE THE BRAKES WERE STARTING TO ENGAGE, HOWEVER I COULD NOT GET THEM TO FULLY ENGAGE AND STOP IN TIME TO AVOID REAR ENDING THE VEHICLE IN FRONT OF ME. I TOOK EVASIVE ACTION AND JUMPED THE CURB AND DIRECTED THE VEHICLE AT BANK OF NEWSPAPER STANDS IN ORDER TO COME TO A COMPLETE STOP.

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I HAVE BEEN HAVING ISSUES WITH THE BRAKES MOSTLY WHEN RAINING OR SNOW. AT TIMES WHEN I GO TO HIT THE BRAKES THEY GET STUCK OR MAKE A GRINDING NOISE AND DON'T WANT TO STOP. THIS HAS HAPPENED NUMEROUS TIMES AND ALMOST CAUSED ME TO HIT ANOTHER CAR ON MULTIPLE OCCASIONS. I WILL TAKE IT IN SOON TO HAVE IT CHECKED NOW THAT I SEE THAT I AM NOT THE ONLY PERSON WITH THIS ISSUE. STARTING IN JAN 2015 I NOTICE A BURNING SMELL COMING FROM UNDER THE HOOD OF THE CAR. I HAD AN OIL CHANGE AND CHECKED FOR AN OIL LEAK TO FIND NOTHING WRONG WITH THE VEHICLE. AFTER RUNNING THE CAR FOR AT LEAST 20 MINUTES THE SMELL CONTINUES.

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