Brakes stopped working while we were on vacation. Made the drive down fine, but the next day went to drive the car, pressed the brakes and the car did not come to a complete stop. Also made a funny noise when we tried to press on the brakes. My husband practically had to stand up and push all the way down to get car to stop. Luckily we were not in a congested or confined place. Ended up replacing the brake booster. Three weeks later my acceleration stopped working intermittently. I go to press the gas and the car doesn’t go. The dealership is saying it’s the brake signal.
- NHTSA ID
- 11538158
- Incident
- Jun 26, 2023
Breaks became very hard to press and I was having trouble stopping the car. I could not drive it to the Mazda dealer who was too far. I took a chance and drove a few miles to local break shop. They replaced the master cylinder and the break booster. Parts and labor were $1083.87
- NHTSA ID
- 11533482
- Incident
- Jul 20, 2023
When I press on my brakes, I hear air. I am fortunate that, as of this reporting, I have not had an accident. My brakes do not fully stop my car, so I have to judge when to brake in order to slow down and not hit the car ahead of me. Very scary when your car won't stop! I have read other complaints on the Mazda CX9s built in 2013 having an issue with the brake booster. PLEASE recall these 2014 Mazdas so the appropriate repairs can be made. Working brakes are ESSENTIAL!
- NHTSA ID
- 11531431
- Incident
- Jul 10, 2023
The car started creating a noise like air was leaking when i apply brake. The problem continued to increase, and braking became harder and harder. The dealer indicated that I had to replace the brake booster. This is a 2014 CX-9. A NHTSA search showed that vehicles manufactured in 2013 were affected. My car was purchased in Feb 2014. I suspect this one too had that faulty equipment.
- NHTSA ID
- 11503784
- Incident
- Jan 1, 2023
OUR 2014 MAZDA CX-9 POWER BRAKE BOOSTER HAS GOTTEN PROGRESSIVELY WORSE OVER THE LAST FEW MONTHS AND HAS NOW FAILED AT 75,269 MILES WHERE THE PEDAL IS SPONGY, PEDAL TRAVEL IS LONG AND THERE IS A HISSING NOISE (AIR LEAKAGE) FROM THE POWER BOOSTER, ALL RESULTING IN SEVERELY REDUCED BRAKE EFFECTIVENESS - VERY LITTLE. WE CANNOT SAFELY DRIVE THE CAR. THIS IS THE SAME FAILURE AND SAFETY DEFECT THAT WAS THE SUBJECT OF ODI INVESTIGATION PE-14-005 (ODI CLOSED 2/10/2014) INVOLVING 2007-2013 MAZDA CX-9 VEHICLES IN WHICH THE ODI RESUME SAID "THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT AND TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED." IN THAT CASE, IN ORDER TO AVOID A RECALL, IN MARCH 2014 MAZDA AGREED WITH THE NHTSA/ODI TO EXTEND THE WARRANTY FOR 7 YEARS OR 100,000 FOR THE 2007-2013 MAZDA CX-9 VEHICLES AND REPAIR THE CONDITION AND INITIATED SPECIAL SERVICE PROGRAM SSP93. THIS NOW IS EXACTLY THAT SAME CONDITION BUT IN THE NEXT YEAR MODEL - A MODEL 2014 MAZDA CX-9 MANUFACTURED IN 2013 THAT OBVIOUSLY RECEIVED THE DEFECTIVE POWER BRAKE BOOSTER THAT WAS MANUFACTURED BEFORE THE BOOSTER SUPPLIER CORRECTED THE FAULTY BOOSTER MOLD IN FEBRUARY 2013. YESTERDAY (4-29-21) MAZDA SAID (MAZDA CUSTOMER SERVICE REFERENCE # 1-378914617) OUR VEHICLE IS NOT COVERED FOR THE REPAIR BECAUSE THE NHTSA/ODI AGREEMENT AND SSP93 ONLY APPLIES TO 2007-2013 VEHICLES WHERE OURS IS A 2014, EVEN THOUGH IT WAS MANUFACTURED IN 2013. THIS IS NOT ONLY ANOTHER EXAMPLE OF THE SAME PROBLEM NOW EXISTING IN 2014 MAZDA CX-9'S WITH A POWER BOOSTER MANUFACTURED BEFORE THE FEBRUARY 2013 FAULTY BOOSTER MOLD CORRECTION, IT IS UNCONSCIONABLE FOR MAZDA TO REFUSE THE REPAIR. PLEASE - WE NEED YOUR HELP IN RESOLVING THIS - AND NEED YOU TO RE-OPEN THE INVESTIGATION FOR THE SAFETY OF OTHERS. THANK YOU.
- NHTSA ID
- 11414560
- Incident
- Apr 26, 2021
- Mileage
- 73,000 mi
FIRST BRAKES STARTED FAILING WERE SOFT HAD TO PUMP THEM TO STOP IN TIME AS TO NOT HIT ANOTHER VEHICLE. I TOOK MY CAR TO MY MECHANIC. HE SAID WE NEEDED TO REPLACE THE MASTER CYLINDER. DID THIS NOW BRAKES MAKE A WHOMP WHOMP SOUND AND PUSH BACK SOME. WAS TOLD TO DRIVE A FEW DAYS AND SEE IF IT GETS BETTER. DID THIS AND HUBBY WAS DRIVING THEY WERE SOFT AGAIN. THEN I TOOK CAR TODAY IT WAS FINE UNTIL I GOT HOME TO PICK UP KIDS TO TAKE THEM OUT LEFT CAR RUNNING CAME IN GOT MY KIDS WENT BACK OUT TO CAR. AT THIS TIME BRAKES ARE NOW HARD AND YOU CAN'T PUSH THEM DOWN. I PUT CAR I'M REVERSE AND CAR DIDN'T WANT TO MOVE ALMOST LIKE BRAKES ARE ON SAFETY BAKE IS NOT ON. I TOOK AROUND BLOCK TO SEE IF IT WOULD GET BETTER. IT DIDN'T IN FACT I BARELY MADE IT UP A SMALL HILL EVEN WITH MY FOOT TO THE FLOOR WITH GAS PEDDLE. GOT BACK TO MY HOUSE OPENED DOOR AND YOU COULD SMELL THE BRAKES LIKE THEY WERE BURNT. WILL BE TAKING CAR BACK TO MACHANIC TOMORROW. I KNOW THERE HAS BEEN PROBLEMS WITH OTHER YEARS MINE IS A 2014 I DON'T THINK THEY HAVE FIXED OR SOLVED THEM. MY CAR ONLY HAS 71,000 MILES ON IT RIGHT NOW. NOTE WHEN I SAY CAR I AM MEANING SUV. MY CAR WHEN IT FIRST HAPPENED MUSHY BRAKES WAS IN MOTION ON ROAD NOT FREEWAY THANK GOODNESS. THE SECOND PROBLEM WAS NOT IN MOTION TO BEGIN WITH THEN WAS IN MOTION.
- NHTSA ID
- 11309735
- Incident
- Feb 17, 2020
- Mileage
- 71,000 mi
VEHICLE HAS 57000 MILES HAD TO PUT INTWO MASTER CYLINDERS IN TWO YEARS. AUTO WAS IN MOTION AND COMPLETE LOSS OF BRAKES.
- NHTSA ID
- 11154094
- Incident
- Feb 12, 2018
- Mileage
- 48,000 mi
TOLD BY DEALER THAT FRONT DISCS HAD EXCESSIVE CORROSION @ APPROX 15K AND TWO PLUS YEARS. CONTACTED MANUFACTURER WITH NO ASSISTANCE OFFERED.
- NHTSA ID
- 11014817
- Incident
- Dec 1, 2016
- Mileage
- 15,000 mi
THIS IS A MAZDA CX9 2014 AWD. I NEEDED TO STOP QUICKLY ON A CITY STREET IN MODERATE TRAFFIC AT 3:00PM. I WAS TRAVELING ABOUT 25 MPR NORTH IN THE INSIDE LANE ON A DRY ROAD. I PUSHED DOWN ON THE BRAKE PEDAL HARD AND THE CAR DID NOT SLOW DOWN BUT, CONTINUED ON UNTIL IT IMPACTED WITH THE CAR IN FRONT. THE AIR BAG DID NOT DEPLOY AND THERE WERE NO PHYSICAL INJURIES TO DRIVERS OF EITHER INVOLVED VEHICLES. THE DAMAGE TO MY CAR IS ESTIMATED TO BE OVER $2000.00 DOLLARS. I HAD PREVIOUSLY TAKEN THIS CAR IN TO THE MAZDA DEALER HERE IN TEMECULA, CA LAST MONTH BECAUSE THE BRAKES HAD BEEN NON-RESPONSIVE BUT, SERVICE DEPT. SAID BRAKES TESTED NORMAL. THIS CAR ONLY HAS 11,000 MILES ON IT. I AM NOW SCARED TO DRIVE IT AS I AM 64 YEARS OLD WITH NO TICKETS OR ACCIDENTS EVER. IT IS CURRENTLY AT THE "AUTO CENTER AUTO BODY" SHOP BEING REPAIRED THROUGH AAA INS.HERE IN TEMECULA.
- NHTSA ID
- 10822425
- Incident
- Dec 30, 2015
- Mileage
- 11,000 mi
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.