There are 3 stored owner reports matching the fuel system leading-label group for the 2007 Mazda CX-9 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)THERE IS A SYSTEMIC EVAP SYSTEM ISSUE WHERE THERE IS A LEAK THAT EITHER SHOWS THAT THE GAS CAP IS OFF OR THE CHECK ENGINE CODE FOR LARGE EVAP LEAK. MESSAGE BOARD TRAFFIC SHOWS THIS AS A PROBLEM ACROSS MULTIPLE YEAR MODELS AND MAKES IN THE MAZDA CX LINE, ESPECIALLY THE CX-9. EVERYONE, INCLUDING MYSELF, REPORTS THE SAME ISSUE: LIGHT COMES ON, AND THEN REPLACE GAS CAP. LIGHT COMES BACK ON AND THEN IT IS MULTIPLE TRIPS TO THE DEALER FOR THEM TO FIND WHERE THE EVAP LEAK IS.
WHILE DRIVING ON THE WILLIAMSBURG BRIDGE THERE WAS A SLIGHT INCLINE DURING THIS TIME THE VEHICLE WAS TRYING TO ACCELERATE AND THAT'S WHEN IT STARTED LOOSING POWER AND STARTED MISFIRING. FORTUNATELY, THIS HAPPENED VERY EARLY IN THE MORNING AND THERE WERE NO VEHICLES EXCEPT MINE. WHEN I GOT TO THE OTHER SIDE OF THE BRIDGE I GOT OFF THE EXPRESSWAY IMMEDIATELY.
TL* THE CONTACT OWNS A 2007 MAZDA CX9. THE CONTACT STATED THAT THE VEHICLE WAS PARKED IN THE RESIDENTIAL GARAGE WHEN HE SMELLED AN EXTREMELY STRONG ODOR OF FUEL OUTSIDE OF THE VEHICLE. THERE WAS ALSO AN OVERPOWERING GASOLINE ODOR FROM INSIDE THE VEHICLE WHEN THE VEHICLE WAS IN MOTION. THE VEHICLE WAS TAKEN TO BOTH AN INDEPENDENT MECHANIC AND AUTHORIZED DEALER WHERE THEY INFORMED THE CONTACT THAT THERE WAS A RUSTY SEAM WITHIN THE FUEL TANK. THE PART NEEDED TO MAKE REPAIRS WAS UNAVAILABLE AND THE CONTACT WAS ADVISED THAT THE DEALER WOULD REPAIR THE VEHICLE ONCE THE PART BECAME AVAILABLE. THE CONTACT PLANNED TO NOTIFY THE MANUFACTURER REGARDING THE DEFECT. THE FAILURE MILEAGE WAS 103,568. UPDATED 3/1/12 *CN
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.