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

The contact owns a 2011 Mazda CX-9. The contact stated that while attempting to park the vehicle at a slow speed in the driveway, the vehicle suddenly experienced unintended acceleration, lurched forward, and crashed into a tree before coming to a stop. The contact was unable to stop the vehicle during the sudden unintended acceleration. During the failure the vehicle sustained front end damages, but no air bags had deployed. No injuries were reported. The cause of the failure was not yet determined. The contact stated that twice in the day before the unintended acceleration, the vehicle jerked forward in traffic however, the contact attributed the issue to the brake pedal not being firmly depressed or the clutch not properly engaged while shifting gear. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet contacted. The failure mileage was 173,000.

NHTSA ODI 11677734

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

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

NHTSA ODI 10731151

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.

NHTSA ODI 10730647

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.

NHTSA ODI 10724159

TL* THE CONTACT OWNS A 2011 MAZDA CX-9. WHILE DRIVING 45 MPH AT NIGHT, THE CONTACT NOTICED A FLICKERING LIGHT COMING FROM THE FRONT END OF THE VEHICLE. THE CONTACT MERGED TO THE SIDE OF THE ROAD. AFTER INSPECTING THE VEHICLE, THE CONTACT NOTICED THAT FLAMES ENGULFED THE ENGINE. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. A POLICE REPORT WAS FILED. NEITHER THE CONTACT NOR THE PASSENGER SUSTAINED ANY INJURIES. THE CAUSE OF THE FIRE WAS NOT DETERMINED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 65,000.

NHTSA ODI 10681222

WHILE DRIVING ON INTERSTATE 77, NORTH BOUND, AT 55MPH, OTHER MOTORISTS INFORMED ME THAT MY CAR WAS ON FIRE UNDERNEATH. THERE WERE NO DASHBOARD WARNING LIGHTS OR SIGNALS THAT CAME ON IT LIGHT UP AS A WARNING SIGN. I PULLED OVER TO THE SIDE OF THE ROAD, THE FIRE DEPARTMENT AND SHERIFF'S OFFICE PUT OUT THE FIRE AND THE CAR WAS TOWED. THE CAR IS QUITE NEW AND WITH VERY LOW MILEAGE. WELL MAINTAINED CAR. NO RECENT WORK OTHER THAN REGULAR OIL CHANGE. MAZDA DENIES ANY PROBLEMS WITH THIS CAR. *TR

NHTSA ODI 10658607

BRAKES FAILED TO ENGAGE 3 TIMES THIS MORNING, THE FIRST TIME FAILED TO STOP THE SUV SO HAD TO SWERVE TO THE CENTER MEDIAN AND SLIGHTLY HIT THE METAL BARRIER. THEN GOING BACK HOME MAKING A TURN, BRAKES FAILED AGAIN TO ENGAGE. SEEMS THIS HAPPENED WHEN MAKING TURNS. BROUGHT TO THE MAZDA DEALER, TOLD THEM ABOUT ONGOING INVESTIGATION BY NHTSA ABOUT MAZDA CX9 2010-2011 BRAKE PROBLEMS. THEY DID A THOROUGH CHECK BUT COULD NOT DUPLICATE THE PROBLEM SO NOTHING WAS FIXED. IT MIGHT BE THE BRAKE BOOSTER. I'M AFRAID THIS MIGHT HAPPEN AGAIN, THEY SAID THERE WAS NO RECALL REGARDING BRAKES FOR 2011 MAZDA CX9. HOPE THAT NHTSA FORCES MAZDA TO MAKE A RECALL. MAZDA HAS TO FIX THIS DANGEROUS PROBLEM. *TR

NHTSA ODI 10576014

2011 MAZDA CX-9. CONSUMER WRITES IN REGARDS TO VEHICLE FIRE CAUSED BY TRANSMISSION/TRANSFER CASE FAILURE. *SMD THE CONSUMER STATED THE BOTTOM OF THE VEHICLE CAUGHT ON FIRE, IT WAS PUT OUT BEFORE ANY EXCESSIVE DAMAGE WAS DONE. THE CONSUMER STATED PRIOR TO THE FIRE, THE VEHICLE STARTED VIBRATING AND WHEN SHE ATTEMPTED TO DRIVE, IT WOULD NOT MOVE.

NHTSA ODI 10522358

APPROACHING A RED LIGHT ON A DRY SUNNY DAY, MY BRAKES FAILED HALFWAY THROUGH COMING TO A STOP. AT FIRST MY VEHICLE (2011 MAZDA CX-9 SPORT WITH 56,000 MILES) WAS SLOWING DOWN NORMALLY AND THEN SUDDENLY THERE WAS GRINDING/CRUNCHING NOISES AND DESPITE PRESSING THE BRAKE, THE VEHICLE WAS NO LONGER STOPPING. I SLAMMED THE BRAKES, PUMPED A FEW TIMES, AND THE VEHICLE SIMPLY FAILED TO SLOW DOWN OR STOP CAUSING ME TO SLAM INTO THE REAR OF THE VEHICLE IN FRONT OF ME. I TOOK THE CAR INTO A MECHANIC WHO NOTIFIED ME THAT BOTH OF MY "FRONT CALIPERS WERE POSSIBLY DEFECTIVE," AND MY FRONT ROTORS WERE "UNEVEN AND WEARING ON THE OUTSIDE." HOWEVER, MY BRAKE PADS WERE GOOD AND DID NOT NEED TO BE REPLACED. GOOD THING I WAS ALREADY STOPPING FOR THE RED LIGHT; THEREFORE I ESTIMATE GOING ABOUT 10-15 MPH (SPEED LIMIT ON STREET WAS 35 AND I WAS ALREADY MIDWAY THROUGH COMING TO A STOP AT THE LIGHT). IMAGINE IF I NEED TO BRAKE WHILE GOING 60-70 MPH ON THE INTERSTATE! OR WORSE, DRIVING IN THE RAIN! *TR

NHTSA ODI 10512192