Mazda CX-9 brakes problems
480 complaint narratives mention brakes terms.
Key facts
1,430 owner complaints analyzed
13 distinct recall campaigns
68,000 mi median reported failure mileage
Scope: 2007 to 2023 model years. Data snapshot: . 811 complaints include usable failure mileage.
Braking behavior evidence
480 of 1,430 complaints match this topic (33.6%). The keyword filter can include complaints that mention a transmission without reporting its failure. View matching rules.
Owner report 10394550 · 2011-03-29 (March 29, 2011)
WE HAVE HAD OUR MAZDA CX-9 SINCE 2007. AT 58,000 MILES WE NOTICED A "HUMMING" NOISE. WE TOOK THE VEHICLE INTO THE MAZDA DEALERSHIP SINCE IT WAS STILL UNDER WARRANTY. WE GOT THE RUN AROUND STATING IT WAS OUR TIRES; HOWEVER, IT TURNED OUT THE FRONT WHEEL BEARINGS WERE BAD. THEY REPLACED THE BEARINGS AND ONE YEAR LATER WE ARE HAVING TO REPLACE THE REAR BEARINGS. THROUGH RESEARCH WE ARE FINDING THAT MAZDA HAS A SERVICE BULLETIN ISSUED 2/1/2008 ABOUT THE REAR BEARINGS. BASICALLY STATING THE NOISE IS FROM AN IMPROPER SHAPE OF THE ABS SENSOR AND …
Owner-reported narrative. 73,900 miles reported. Look up ODI 10394550 at NHTSA ↗
Owner report 10396981 · 2011-04-20 (April 20, 2011)
MY DAUGHTERS 2007 MAZDACX-9, RIGHT REAR WHEEL BEARING HAS BEEN REPLACED 3 TIMES IN THE FIRST 46,000 MILES OF OWNERSHIP. THE VEHICLE WAS PURCHASED NEW AND PARTS HAVE BEEN REPLACED AT NO COST. HAVE BEEN MADE AWARE THERE IS A SERVICE BULLETIN FROM THE FACTORY STATING REAR BEARING PROBLEM IS DUE TO AN IMPROPERLY INSTALLED OR MISSHAPEN ABS SENSOR. BULLETIN STATES WILL ONLY BE REPLACED FREE DURING WARRANTY. THIS PROBLEM COULD HAVE SERIOUS RAMIFICATIONS TO OCCUPANTS IF NOT PERMANENTLY REPAIRED BECAUSE ABS SENSOR IS INVOLVED. *TR
Owner-reported narrative. 46,000 miles reported. Look up ODI 10396981 at NHTSA ↗
Owner report 10421930 · 2011-08-22 (August 22, 2011)
BRAKE VACUUM BOOSTER FAILED, BRAKE FLUID LEAKING INTO VACUUM SYSTEM.
Owner-reported narrative. 74,000 miles reported. Look up ODI 10421930 at NHTSA ↗
Owner report 10426660 · 2011-09-21 (September 21, 2011)
TL* THE CONTACT OWNS A 2007 MAZDA CX9. WHILE DRIVING APPROXIMATELY 60 MPH, THE CONTACT ENGAGED THE BRAKE PEDAL REPEATEDLY WITH FORCE HOWEVER THERE WAS A DELAYED RESPONSE. THE CONTACT SWERVED OFF THE ROAD TO PREVENT CRASHING INTO A PROCEEDING VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSIS WHERE THE TECHNICIAN STATED THAT THE FAILURE WAS CONTRIBUTED TO THE POWER BRAKE BOOSTER. THE CONTACT PLANNED TO TAKE THE VEHICLE TO AN AUTHORIZED DEALER FOR REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE PROBLEM. THE APPROXIMATE FA…
Owner-reported narrative. 68,000 miles reported. Look up ODI 10426660 at NHTSA ↗
Owner report 10552870 · 2013-11-19 (November 19, 2013)
ON FRIDAY, OCTOBER 18TH 2013 I WAS INVOLVED IN A NEAR ACCIDENT ON MY WAY HOME FROM WORK ON INTERSTATE 99 OFF THE 17TH STREET EXIT NEAR ALTOONA PA. THE BRAKE SYSTEM FAILED AS I TRIED TO COME TO A STOP ON THE EXIT RAMP. I PLACED MY FOOT ON THE BRAKE PEDAL AND NOTICED I WAS NOT STOPPING. I COULD HEAR A HISSING/AIR SOUND WHEN I PRESSED DOWN ON THE BRAKE PEDAL. I HAD TO PUMP THE BRAKES, GEAR THE CAR DOWN IN MANUAL, AND SWERVE OFF THE ROAD TO AVOID CRASHING INTO THE CAR THAT WAS STOPPED IN FRONT OF ME. NO DASH LIGHTS WERE ON GIVING ME NO WARNING THAT…
Owner-reported narrative. 83,213 miles reported. Look up ODI 10552870 at NHTSA ↗