IllustrationBRAKE 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
2010 Mazda CX9
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all CX9 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
20–25K
225–50K
250–75K
775–100K
11100–150K
0150K+
24 reports with mileage · 9 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Service Brakes. Review the 15 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
1 crash reports0 fire reports1 injury reports
What owners actually said
33 reportsMY 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 TH…
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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 BELIEVE MY OLD CAR WAS TAKEN TO AN AUCTION BY MAZDA. AND THAT WAS A DANGEROUS VEHICLE. I WISH MORE PEOPLE WOULD REPORT IT. I HAD ANOTHER MAN TELL ME IT HAPPENED TO HIM BUT HE DIDN'T REPORT IT TO ANY ONE ELSE ACCEPT THE DEALER. THE DEALER I USE MAZDA IN VIRGINIA BEACH. THEY HAVE SERVICED OTHER MAZDA CX 9'S WITH THIS ISSUE. THEY PUT A BAND AID ON IT. THEY CHANGED THE THROTTLE IN MY NEW CAR WHEN IT FIRST HAPPENED. THAT DID NOT WORK. *TR
VEHICLE WAS PARKED IN A GARAGE (NOT HEATED) AFTER TRAVELING APPROXIMATELY 18 MILES FROM WORK WITH TEMPERATURES IN THE TEENS. AFTER BEING PARKED IN THE GARAGE UNATTENDED FOR APPROXIMATELY 10 MINUTES, THE SUNROOF EXPLODED. THE SOUND COULD BE HEARD FROM INSIDE THE HOUSE. WHEN I INVESTIGATED, THE REMAINING GLASS THAT WAS STILL IN TA…
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VEHICLE WAS PARKED IN A GARAGE (NOT HEATED) AFTER TRAVELING APPROXIMATELY 18 MILES FROM WORK WITH TEMPERATURES IN THE TEENS. AFTER BEING PARKED IN THE GARAGE UNATTENDED FOR APPROXIMATELY 10 MINUTES, THE SUNROOF EXPLODED. THE SOUND COULD BE HEARD FROM INSIDE THE HOUSE. WHEN I INVESTIGATED, THE REMAINING GLASS THAT WAS STILL IN TACT WAS POINTED TOWARDS THE CEILING OF THE GARAGE. WHILE TAKING PICTURES, THE GLASS CONTINUED TO CRACK, POP, AND EXPLODE INTO THE AIR AND ONTO THE HOOD OF THE CAR. *TR
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.