2012 MAZDA CX-9 Complaints

Vehicle completely shuts off while driving making it hard to turn the steering wheel and apply brakes. Vehicle is able to be turned back on shortly after. Does this randomly. Probably 2 x within a 3-6 month period

This is relating to NHTSA Investigation PE 14-005. Although this car is a 2012 Mazda CX9, my wife driving the car had the same issue where she heard a hissing noise and the brakes were very difficult for her to depress or to stop. A brake issue is a major defect where the NHTSA should have initiated a recall in accordance with 49 U.S.C. 30118-30120, which required notification of all owners. Why the NHTSA allowed Mazda to only issue a 'Special Extended Warranty' is beyond me, and smells of a back door deal. Nonetheless, I was unaware of this issue with the Mazda CX9's as I was never notified. My wife drove the vehicle home and I purchased the replacement parts at my own expense. This should be a full recall and should be reopened as your current investigation PE 14-005 only included years 2010-2011, and did *not* include the 2012 model year.

I was driving along the highway and traffic began to slow. I pushed the brakes and the car did not stop.

Brake booster failure caused a near miss. Wife driving with 5 year old daughter in the vehicle. The stopping force required on the brake pedal became excessive and the stopping (safe braking) distance significantly increased causing emotional distress. My understanding is this part (brake booster) has a defective diaphragm that deteriorates over time. The extended warranty created for this particular issue did not cover the vehicle at the time of the failure.

BRAKE BOOSTER INTERNAL FAILURE - This is a known issue and a safety hazard on Mazda CX 9 models and should be investigated again regardless of the age of the vehicle.

The contact owns a 2012 Mazda CX-9. The contact stated while driving 25 mph and approaching a stop sign, depressing the brake pedal the vehicle failed to stop. The contact stated that there was no warning light illuminated. The contact stated that she pumped the brake pedal and shifted to neutral until the vehicle came to a stop. The contact was able to drive to her residence. The contact took the vehicle to an independent mechanic and was informed that the power brake booster and master cylinder needed to be replaced. The vehicle was repaired. A dealer was not contacted. The manufacturer was informed of the failure. The failure mileage was 29,805.

TL* THE CONTACT OWNS A 2012 MAZDA CX-9. THE CONTACT STATED WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE STALLED. ADDITIONALLY, THE BRAKES FAILED TO ENGAGE WHEN THE BRAKE PEDAL WAS DEPRESSED. THERE WAS NO WARNING LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE BRAKE MASTER CYLINDER AND BRAKE BOOSTER NEEDED TO BE REPLACED. THE CONTACT WAS ADVISED TO REACH OUT TO THE DEALERSHIP ELDORADO CHEVROLET(233 N CENTRAL EXPWY, MCKINNEY, TX 75070). THE CONTACT WANTED A SECOND OPINION AND THE VEHICLE WAS TAKEN TO ELDORADO CHEVROLET (2300 N CENTRAL EXPY, MCKINNEY, TX 75070) WHERE IT WAS ALSO DIAGNOSED WITH THE MASTER CYLINDER AND BRAKE BOOSTER NEEDING TO BE REPLACED. THE SVC MGR INFORMED CONSUMER HE WOULDNT ADVISED ANYONE TO DRIVE THE VEHICLE UNTIL REPAIRS WERE MADE. DUE TO INCORRECT TITLE WORK THE DEALER REFUNDED SOME MONEY AND TOOK POSESSION OF THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 110,000. THE CONSUMER STATED THE VEHICLE WAS PUT BACK ON THE LOT FOR RESALE. THE CONSUMER CONTACTED A LAWYER AND VEHICLE WAS TAKEN OFF THE LOT BUT CARFAX WAS NOT UPDATED WITH CORRECT INFORMATION.

TL* THE CONTACT OWNS A 2012 MAZDA CX-9. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 5 MPH WHILE PULLING INTO A PARKING SPACE, THE VEHICLE SUDDENLY EXPERIENCED UNINTENDED ACCELERATION AND DROVE FORWARD CRASHING INTO A WOODEN SEATING BENCH WHICH WAS PUSHED INTO A BUILDING. DURING THE INCIDENT THE DRIVERS FOOT WAS PRESSING THE BRAKE PEDAL. NO INJURIES WERE REPORTED. A POLICE REPORT WAS TAKEN AT THE SCENE AND THE VEHICLE WAS TOWED AWAY. THE CAUSE OF THE FAILURE WAS NOT YET DETERMINED. THE MANUFACTURER AND LOCAL DEALER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 112,000. THE VIN WAS NOT AVAILABLE.

TL* THE CONTACT OWNS A 2012 MAZDA CX-9. THE CONTACT STATED THAT WHILE DRIVING OVER A SPEED BUMP AT APPROXIMATELY 5 MPH BOTH THE FRONT AND REAR DRIVER SIDE AND PASSENGER SIDE CURTAIN AIRBAGS HAD ERRONEOUSLY DEPLOYED WITH OUT ANY IMPACT OCCURRING TO THE VEHICLE. DURING THE INCIDENT BOTH THE FRONT AND PASSENGER SIDE SEAT BELTS HAD ALSO ACTIVATED AND DEPLOYED TO SECURE THE OCCUPANTS. THE VEHICLE WAS TAKEN TO THE LOCAL DEALER JOE MAUS MAZDA LOCATED AT 6735 E INDEPENDENCE BLVD, CHARLOTTE, NC WHO REPLACED THE AIRBAGS AND SEAT BELTS. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FRONT PASSENGER AND DRIVER BOTH SUSTAINED MINOR NECK AND BACK INJURIES DURING THE INCIDENT. THE FAILURE MILEAGE WAS 126,417.

TL* THE CONTACT OWNS A 2012 MAZDA CX-9. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 20 MPH, THE BRAKES FAILED TO OPERATE. THE CONTACT MENTIONED THAT THE BRAKES GRADUALLY SLOWED DOWN THE VEHICLE AND STOP INDEPENDENTLY. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THEY INFORMED THE CONTACT THAT THERE WAS AN UNKNOWN RECALL ON THE VEHICLE. THE CONTACT CONTACTED RILEY MAZDA (75 MYRTLE AVE, STAMFORD, CT 06902, (203) 978-5780) AND WAS INFORMED THAT THE VIN WAS NOT UNDER RECALL. THE CONTACT WAS INFORMED OF AN EXTENDED WARRANTY COVERAGE HOWEVER, THE MILEAGE HAD BEEN EXCEEDED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 129,000.