Mazda CX9 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
52 owner complaints analyzed
1 distinct recall campaigns
95,250 mi median reported failure mileage
Scope: 2007 to 2010 model years. Data snapshot: . 34 complaints include usable failure mileage.
Most common problems
Service Brakes is the most frequently named component, appearing in 15 of 52 complaints (28.8%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 14 | 26.9% |
| Transmission and shifting | 3 | 5.8% |
| Engine operation | 2 | 3.8% |
| Steering behavior | 2 | 3.8% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Service Brakes | 15 |
| Air Bags | 13 |
| Suspension | 10 |
| Engine | 6 |
| Power Train | 3 |
| Unknown Or Other | 2 |
| Electrical System | 1 |
| Exterior Lighting | 1 |
Service Brakes: 15; Air Bags: 13; Suspension: 10; Engine: 6; Power Train: 3; Unknown Or Other: 2; Electrical System: 1; Exterior Lighting: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 2 |
| 25,000 to 49,999 | 3 |
| 50,000 to 74,999 | 2 |
| 75,000 to 99,999 | 11 |
| 100,000 to 149,999 | 15 |
| 150,000 and above | 1 |
Under 25,000: 2; 25,000 to 49,999: 3; 50,000 to 74,999: 2; 75,000 to 99,999: 11; 100,000 to 149,999: 15; 150,000 and above: 1
100,000 to 149,999 miles has the most reports with usable mileage (15). 18 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2013 | 1 |
| 2014 | 4 |
| 2015 | 7 |
| 2016 | 12 |
| 2017 | 13 |
| 2018 | 9 |
| 2019 | 5 |
| 2020 | 1 |
2013: 1; 2014: 4; 2015: 7; 2016: 12; 2017: 13; 2018: 9; 2019: 5; 2020: 1
Pattern summary
Service Brakes leads the component reports. Braking behavior appears in 14 complaint narratives. Transmission and shifting appears in 3 complaint narratives. Engine operation appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10576384 · 2014-04-01 (April 1, 2014)
MY CAR HAD UNEXPECTED ACCELERATIONS 3 DIFFERENT TIMES. MY BRAKES WOULD NOT STOP MY CAR. I HAD A TEAR IN MY KNEE ON THE LAST INCIDENT IN MARCH 2012. MY MEDICAL BILLS WERE AROUND $5,000. MAZDA KEPT MY CAR AND GAVE ME A RENTAL. BUT SAID THEY COULD FIND NOTHING. I SOLD THE CAR. I KNOW THIS DEALERSHIP HAD ANOTHER MAZDA DO THE SAME THING AS MY CAR. THEY TOLD ME MAZDA WAS AWARE THERE WAS A PROBLEM. I HOPE SOMETHING IS DONE. I WASN'T KILLED BECAUSE I WAS ABLE TO GET TO THE GRASSY AREAS ALL 3 TIMES. BLOWING MY HORN AS A WARNING TO OTHER DRIVERS. I BELIE…
Owner-reported narrative. Look up ODI 10576384 at NHTSA ↗
Owner report 10621176 · 2014-08-10 (August 10, 2014)
BRAKE PEDALS NEED EXTRA EFFORT TO STOP. FEELS LIKE THE BRAKE PEDALS ARE STUCK ON THE FLOOR. JUST TOOK CAR INTO DEALERSHIP FOR OIL CHANGE 3 WEEKS AGO AND THEY SAID EVERYTHING WAS OK. *TR
Owner-reported narrative. 42,800 miles reported. Look up ODI 10621176 at NHTSA ↗
Owner report 10865338 · 2016-05-17 (May 17, 2016)
TL* THE CONTACT OWNS A 2007 MAZDA CX9. WHILE DRIVING APPROXIMATELY 75 MPH WITH THE CRUISE CONTROL ACTIVATED, THE VEHICLE DOWNSHIFTED TO NEUTRAL ON ITS OWN. THE CONTACT SWITCHED TO MANUAL TRANSMISSION, BUT THE VEHICLE WOULD NOT ACCELERATE. THE CONTACT HAD TO COAST TO THE SHOULDER. WHEN THE VEHICLE SLOWED DOWN TO APPROXIMATELY 10 MPH, IT RE-ENGAGED IN GEAR. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS UNKNOWN. THE APPROXIMATE FAILURE MILEAGE WAS 127,000.
Owner-reported narrative. 127,000 miles reported. Look up ODI 10865338 at NHTSA ↗
Owner report 11062731 · 2018-01-14 (January 14, 2018)
I WAS DRIVING MY CAR WHEN THE TRANSFER CASE ON MY 2010 CX9 BROKE AT 109.000 MILES AND SPLINE GEAR IS WORN OUT. OVERWHELMING OIL SMELL COMING BACK INTO CAR ALONG WITH HORRIBLE GRINDING NOISE. TOOK TO MY MAZDA DEALER, MAZDA WASN'T SURE IF THEY COULD FIX, SUGGESTED REPLACING TRANSMISSION. MAZDA TRIED TO FIX THE TRANSFER CASE ISSUE, BUT COULD HAVE HUMMING NOISE. INSTEAD OF HUMMING NOISE, AFTER ONE DAY OF RECEIVING MY CAR BACK, TRANSMISSION IS FAILING. ALREADY PUT $2200 INTO THIS REPAIR, BUT WAS TOLD THE TRANSMISSION COULD FAIL AT ANY TIME. I FI…
Owner-reported narrative. 109,000 miles reported. Look up ODI 11062731 at NHTSA ↗
Owner report 11039779 · 2017-10-25 (October 25, 2017)
TAKATA RECALL I HAVE A MAZDA CX9 2010, I GOT NO INDICATION THAT THERE WAS A PROBLEM WITH MY WATER PUMP. THE CARE DID NOT OVER HEAT, IT DID NOT STALL AND I WAS NO STEAM COMING FROM THE CAR. I DROVE MY VEHICLE TO THE OTHER SIDE OF THE WATER MORE THAN 20 MILES FROM MY HOME, SO THAT I COULD GO TO WORK. IF IT WERE NOT FOR THE PHARMACIST AT MY JOB I WOULD HAVE GOTTEN IN MY CAR AND DROVE OFF. HE NOTICE A PUDDLE UNDER MY CAR AND ASKED ME TO COME OUTSIDE SO HE COULD INVESTIGATE THE SITUATION FURTHER. HE SAW WHERE THE FLUID WAS COMING FROM AND WENT UNDE…
Owner-reported narrative. 15,600 miles reported. Look up ODI 11039779 at NHTSA ↗
Owner report 11324549 · 2020-05-14 (May 14, 2020)
TL* THE CONTACT OWNS A 2010 MAZDA CX9. THE CONTACT STATED THAT WHILE THEIR SON WAS DRIVING APPROXIMATELY 30 MPH, THE VEHICLE STALLED WITHOUT ANY WARNING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE WATER PUMP FAILED CAUSING COOLANT TO MIX WITH THE ENGINE OIL AND DAMAGED THE ENGINE. THE CONTACT THEN TOOK THE VEHICLE TO QUIRK MAZDA (99 MCGRATH HWY, QUINCY, MA 02169, [phone removed]) WHO CONFIRMED THE PREVIOUS DIAGNOSIS. THE CONTACT WAS INFORMED THAT THE ENGINE NEEDED TO BE REPLACED. THE VEHI…
Owner-reported narrative. 108,000 miles reported. Look up ODI 11324549 at NHTSA ↗
Owner report 10725488 · 2015-06-16 (June 16, 2015)
TL* THE CONTACT OWNS A 2007 MAZDA CX9. WHILE DRIVING APPROXIMATELY 5 MPH, THE FRONT DRIVER SIDE BALL JOINT DETACHED FROM THE VEHICLE AND THE STEERING WHEEL TURNED 360 DEGREES. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE ENTIRE BALL JOINT SYSTEM NEEDED REPLACEMENT. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 90,000.
Owner-reported narrative. 90,000 miles reported. Look up ODI 10725488 at NHTSA ↗
Owner report 10957366 · 2017-02-27 (February 27, 2017)
TL* THE CONTACT OWNS A 2010 MAZDA CX9. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V356000 (AIR BAGS); HOWEVER, THE PART FOR THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT STATED THAT THE VEHICLE'S INDICATORS SHOWED THAT ALL SYSTEMS WERE FUNCTIONING CORRECTLY; HOWEVER, THE AIR BAGS AND SEAT BELTS WERE MALFUNCTIONING. WHILE DRIVING APPROXIMATELY 65 MPH, THE CONTACT STRUCK A BARREL AND THE FRONT END OF THE VEHICLE BECAME DETACHED…
Owner-reported narrative. 18,000 miles reported. Look up ODI 10957366 at NHTSA ↗
Recalls by model year
All campaigns in the snapshot affecting each model year, including recalls announced years later.
Recall campaigns
Shared campaigns appear once in each affected model year.
| Category | Count |
|---|---|
| 2007 | 1 |
| 2010 | 0 |
2007: 1; 2010: 0