There are 3 owner-reported fuel system complaints for the 2011 Mazda Mazda6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
FUEL OVERFLOWED DURING A ROUTINE FUEL FILL UP AT A NATIONAL GAS CHAIN IN THE PHILADELPHIA AREA. GAS CONTINUED TO SPEW OUT UNCONTROLLABLY UNTIL THE PUMP WAS MANUALLY SHUT OFF BY HAND. *TR
CAR IS NEW, LESS THAN ONE MONTH SINCE PURCHASE. ISSUE HAS OCCURRED WITH EVERY FILL-UP. WHEN FILLING UP WITH GAS, AS SOON AS OR NEAR TANK IS FULL, GAS SPEWS OUT OF TANK. TOOK TO MAZDA DEALER ON 11/19/2011 AND THEY CANNOT FIND WHAT THE CAUSE IS. SEEMS LIKE A HIGHLY DANGEROUS PROBLEM TO HAVE GAS SHOOTING FROM THE TANK. ALSO, IT COULD BE A FAULTY VALVE THAT MAY MALFUNCTION IN THE CASE OF A ROLLOVER, CREATING A HIGHLY COMBUSTIBLE SITUATION. *TR
I HAVE HAD AN ONGOING ISSUE SINCE I PURCHASED MY MAZDA 6 2011, IF I SLOW DOWN OR STOP FOR A TRAFFIC LIGHT AND THEN TRY TO ACCELERATE THE GAS PEDAL IS TO THE FLOOR AND THE CAR DOESN'T MOVE, THEN OUT OF NOWHERE IT WILL ACCELERATE. I WAS TOLD THE VOLTAGE IN THE GAS PEDAL CENSOR AND THE CENSOR IN THE ENGINE WERE NOT THE SAME VOLTAGE, BOTH WERE REPLACED BUT I STILL CONTINUE TO HAVE PROBLEMS AND THE DEALERSHIP CANNOT FIND OUT WHAT THE PROBLEM IS. MY CAR HAS BEEN BACK IN TO MAZDA 3 TIMES BUT NO SOLUTION, AS THIS IS EXTREMELY DANGEROUS IN HEAVY TRAFFIC I WISH SOMEONE COULD FIGURE THIS OUT BEFORE I GET INTO A SERIOUS ACCIDENT. *TR
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.
Data synced from NHTSA on Apr 25, 2026