2016 Mazda CX-9 fuel/propulsion system problems

What owners report

• “Vehicle “surges” at idle. 300-500 RPMS at a time. Sometimes the brakes hold and sometimes not. Have nearly been in 3 collisions the last 2 days because of this issue. The ECM codes indicate throttle body or TPS issue, both of which have been unfounded. Vehicle has 63,000 miles. Researching this topic online found that many others have had this issue with no associated safety recalls noted. I am hoping to bring light to this so someone doesn’t have to be injured or killed to have this rectified.”

  NHTSA complaint · filed 03/04/2024

• “Traveling on the highway going on a road trip. Had vehicle inspected prior and no fuel system problems were noted. I was going 75mph with my family when there was a coasting feeling in the car. I looked and my check engine light popped on and my car immediately would not accelerate and we quickly lost speed. By the grace of God were we able to pull over safely! Code P0132 was the engine code and after an hour, the engine light went back off and we were able to keep a safe speed traveling home. A…”

  NHTSA complaint · filed 07/01/2022

• “I JUST PURCHASED MY VEHICLE ABOUT 3 MONTHS AGO. I WAS RUNNING ERRANDS ABOUT A WEEK AFTER PURCHASE AND WAS HEADING HOME ON THE HIGHWAY WHEN THE GAS NOTIFICATION CAME ON DISPLAYING 27 MILES LEFT AND ADVISED ME TO GET GAS. I WAS ABOUT HALF MILE FROM THE EXIT AND THE VEHICLE CHECK ENGINE LIGHT CAME ON AND IT STARTED STALLING. THANK FULLY I WAS ABLE TO GET OVER TO THE MEDIAN JUST IN TIME WHEN IT SHUT DOWN COMPLETELY. I CALLED ROADSIDE AND THE DEALER AND EXPLAINED WHAT HAPPENED. I HAD IT TOWED BACK TO…”

  NHTSA complaint · filed 04/28/2020

• “MY MAZDA CX-9 RAN OUT OF GAS ON A MAJOR HIGHWAY (ROUTE 90 IN BOSTON) AND THE GAS GAUGE READ HALF FULL. NO 'OUT OF GAS' LIGHT WENT ON AND RANGE (UNDER INFORMATION) SAID 191 MILES REMAINING. MY MAZDA DEALER TOLD ME THE SOFTWARE NEEDED TO BE RESET (NOT DONE YET AS OF THIS WRITING). IT IS A MAJOR ISSUE IF THE GAS GAUGE IS NOT READING PROPERLY AND THIS IS A SOFTWARE ISSUE (A BUG?). MAZDA NEEDS TO FIX THIS FOR ALL MAZDA'S AND ISSUE A RECALL SO IT DOES NOT HAPPEN AGAIN.”

  NHTSA complaint · filed 02/25/2020

• “WHILE DRIVING THE CAR IN THE 287 INTERSTATE HIGHWAY IN NEW JERSEY, I GOT THE CHECK ENGINE LIGHT OUT OF THE BLUE AND THE CAR STARTED DECELERATING IN THE HIGH SPEED LANE. LUCKILY I WAS ABLE TO MANAGE AND GET THE CAR TO THE ROAD SIDE SHOULDER. I WAS NOT ABLE TO START THE CAR AFTER THIS INCIDENT. WE HAD TO TOW THE CAR TO THE MAZDA SERVICE CENTER IN GREENBROOK, NEW JERSEY. AFTER RUNNING THE CAR DIAGNOSTICS (ERROR CODE - P0192), THEY INFORMED ME THAT THEY HAD TO UPDATE THE PCM (POWER CONTROL MODULE) S…”

  NHTSA complaint · filed 01/14/2020

• “11/16/18 TOWED FOR INOPERABILTY. STUCK FUEL INJECTOR/ RUINED ENGINE. ALL PANEL LIGHTS CAME ON. KEPT CAR FOR 57 DAYS. FUEL INJECTOR # 1 FAILED. WE WERE DRIVING ONTO INTERSTATE. WHILE WORKING ON CAR, EXHAUST STUD BROKE OFF INTO TURBO CHARGER HOUSING. DRILLED OUT AND RETHREADED TOOK BACK TO MAZDA DEALER TO C/O ABOUT SWOOSHING NOISE IN R DASH SAID THEY DID NOT HEAR. THIS OCCURRING WITH ACCELERATION 2/7/19 WHILE DRIVING OUT OF STATE ON INTERSTATE , SWOOSHING NOISE R DASH LOST ACCELERATION WH…”

  NHTSA complaint · filed 09/30/2019

• “I BOUGHT THE CAR SATURDAY. FOUR DAYS LATER, I FILLED THE TANK AT 2:00 PM FOR THE FIRST TIME. I THEN DROVE ABOUT 30 MILES. WHEN I ARRIVED HOME AT 5:00PM, I PARKED IN THE GARAGE. I NOTICED THE ODOR OF FUEL AS SOON AS I EXITED THE CAR AND CHECKED TO MAKE SURE I HAD SECURED THE GAS CAP, WHICH I HAD. THIRTY MINUTES LATER, THE ENTIRE DOWNSTAIRS OF OUR HOUSE SMELLED LIKE GASOLINE. THE GARAGE WAS CONSUMED WITH FUEL ODOR, AND THE FIRE POTENTIAL CAUSED US TO RETURN THE CAR TO THE DEALERSHIP IMMEDIATELY AF…”

  NHTSA complaint · filed 08/04/2016

Unverified owner reports from NHTSA's public complaint database.

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