Catalytic converter keeps giving me check engine
2015 Mazda MAZDA3
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2015 Mazda MAZDA3 do not stand out strongly from the model-year median of 108.
About this comparison →How this year compares
Owner complaints by model year
Compare all MAZDA3 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
75 reports with mileage · 55 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 26 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 24 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Back Over Prevention. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
6 reportsThe contact owns a 2015 Mazda Mazda3. The contact stated while driving 25 MPH, smoke was coming from under the hood of the vehicle, followed by the vehicle shut down and the check engine warning light illuminated. The contact's son opened the hood and flames came out from under the hood. The contact son burned his fingers but di…
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The contact owns a 2015 Mazda Mazda3. The contact stated while driving 25 MPH, smoke was coming from under the hood of the vehicle, followed by the vehicle shut down and the check engine warning light illuminated. The contact's son opened the hood and flames came out from under the hood. The contact son burned his fingers but did not seek medical attention. The fire department extinguished the fire. A police report was filed. The vehicle was not diagnosed. The manufacturer was contacted, and a complaint was filed. The failure mileage was 200,000.
In February, 2022, my 2015 Mazda 3 experienced a major failure, while I was driving on a local road, going 35 miles per hour. All of a sudden, the engine lost power, three warning lights came on, and the car was struggling to go 20 miles per hour. Being near a friend's house, I drove there. From there, her husband followed me…
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In February, 2022, my 2015 Mazda 3 experienced a major failure, while I was driving on a local road, going 35 miles per hour. All of a sudden, the engine lost power, three warning lights came on, and the car was struggling to go 20 miles per hour. Being near a friend's house, I drove there. From there, her husband followed me home. The next day, my car was towed to the Mazda dealership. The mechanic diagnosed the problem as “found TBS NUMBER: 01-014/16 and inspected coils found they were bad according to lot numbers”. He replaced all four engine coils and all four spark plugs. The service manager told me that the parts were not under warranty. My research revealed that engine coils are supposed to last the lifetime of the car, which is 150,000 to 200,000 miles for a Mazda 3. My car only had 43,048 miles. The spark plugs should have lasted about five more years. I looked into the Bulletin issued by Mazda USA. Mazda USA was first aware of a problem January, 2016. On 17 March 2016, I bought the car. Mazda USA updated the Bulletin to include my car on 29 July 2016. The car was under full warranty at this time and could have been fixed, if I had been notified of the defects. The faulty coils can cause a catastrophic failure, resulting in serious accidents and injuries. My car was a “ticking bomb”, waiting to go off. I was on a local road, with light traffic, not a secondary road or highway, with heavy traffic. Rather than notify customers of the danger of the engine malfunctioning, Mazda USA chose to remain silent. The Bulletin directs that nothing be done until a customer complains. The customer does not know to complain until the car malfunctions! The customer must complain within the normal warranty period. Mazda is hoping that the bad coils fail after the warranty period.
THE ENGINE SUDDENLY STALLED WITHOUT ANY WARNING LIGHTS AND THE CAR WENT DEAD RIGHT AFTER I EXITED THE FREEWAY. IT WAS VERY SCARY. I PUSHED THE START ENGINE BUTTON AND THE CAR STARTED AND I CONTINUED MY DRIVE. I TOOK THE CAR TO THE DEALER THE NEXT MORNING. I AM CURRENTLY WAITING FOR A PHONE CALL FROM THE DEALER.
VEHICLE WAS INADVERTANTLY TURNED OFF WHILE IN DRIVE, WHEN PARKING THE VEHICLE NO ALARM SOUNDED. UPON EXITING THE VEHICLE, THE VEHICLE BEGAN TO ROLL BACKWARDS, FORCING ME TO JUMP BACK INTO THE CAR AND JAM ON THE BRAKE. ONE WOULD THINK THAT AS A SAFETY MEASURE, THE CAR WOULD BE REQUIRED TO BE IN PARK, BEFORE TURNING OFF THE ENG…
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VEHICLE WAS INADVERTANTLY TURNED OFF WHILE IN DRIVE, WHEN PARKING THE VEHICLE NO ALARM SOUNDED. UPON EXITING THE VEHICLE, THE VEHICLE BEGAN TO ROLL BACKWARDS, FORCING ME TO JUMP BACK INTO THE CAR AND JAM ON THE BRAKE. ONE WOULD THINK THAT AS A SAFETY MEASURE, THE CAR WOULD BE REQUIRED TO BE IN PARK, BEFORE TURNING OFF THE ENGINE. WHILE ITS CONCEIVABLE THAT IN AN EMERGENCY THE DRIVER MAY WANT TO TURN OFF THE VEHICLE WHILE IN GEAR, THIS WOULD BE VERY RARE, AND COULD BE ACCOMMODATED BY PROGRAMING THE OFF SWITCH TO REQUIRE MULTIPLE PUSHES OR HOLDING IN THE BUTTON FOR AN EXTENDED PERIOD. EXITING THE CAR WHEN IT IS NOT IN PARK IS A DANGEROUS SITUATION, JUST AS DANGEROUS AS TRYING TO START THE CAR WHILE IN GEAR, RESULTING IN UNEXPECTED MOVEMENT OF THE CAR. SINCE THE CAR REQUIRES THE GEARSHIFT TO BE IN PARK AND THE BRAKE ON BEFORE STARTING, ONE WOULD THINK A SIMILAR PROCESS WOULD BE USED FOR TURNING OFF THE VEHICLE.
THE CAR SHUT OFF IN THE MIDDLE OF AN INTERSECTION. WOULD NOT STAY RUNNING WHEN I ATTEMPTED TO START IT AGAIN. I HAD IT FOR ONE MONTH.
Official recalls
423V487000 · Back Over Prevention: Sensing System: Camera
Jul 14, 2023
Mazda North American Operations (Mazda) is recalling certain 2014-2018 Mazda3 and 2016-2021 CX-3 vehicles. The rearview camera image may not display properly by showing a flickering or distorted image.
Consequence & remedy
Consequence: A rearview camera that does not display properly can reduce the driver's rear view, increasing the risk of a crash or injury.
Remedy: Dealers will inspect and replace the rearview camera, as necessary. In addition, dealers will install a wiring harness fastening seal. All repairs will be performed free of charge. Interim notification letters, notifying owners of the safety risk, were mailed September 13, 2023. Final owner letters for affected models and model years in the states of CT, MA, MD, NJ, NY, PA and VA were mailed August 14, 2024. The remaining owner notification letters will be mailed at a future date, anticipated on or before May 1, 2025. Owners may contact Mazda customer service at 1-800-222-5500, Option 6. Mazda's number for this recall is 6023G.
17V393000 · Parking Brake
Jun 22, 2017
Mazda North American Operations (Mazda) is recalling certain 2014-2015 Mazda6 and 2014-2016 Mazda3 vehicles. Water could possibly enter the brake caliper causing the parking brake actuator shaft to corrode and possibly bind.
Consequence & remedy
Consequence: If the parking brake actuator shaft binds, the parking brake may not engage or disengage fully. If the parking brake does not engage properly, the vehicle may move unexpectedly if it is parked on a slope, increasing the risk of a crash.
Remedy: Mazda will notify owners, and dealers will check the parking brake actuator shafts, replacing any that are corroded, free of charge. Remedy parts are currently unavailable. Interim notices informing owners of the safety risk were mailed August 24, 2017. Owners will receive a second notice when remedy parts become available. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 1217F.
16V684000 · Fuel System, Gasoline:storage:tank Assembly
Sep 22, 2016
Mazda Motors North American Operations (Mazda) is recalling certain model year 2014-2016 Mazda3 vehicles manufactured January 4, 2014, to September 18, 2015. The fuel tank of the affected vehicles may have been improperly handled during manufacturing and, as a result, the welded attachment of the Inlet Check Valve (ICV) may fail and allow fuel to leak.
Consequence & remedy
Consequence: A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy: Mazda will notify owners, and depending on the tank lot number, dealers will inspect the ICV weld, replacing the fuel tank, as necessary, free of charge. The recall began November 1, 2016. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 0116I.
15V621000 · Fuel System, Gasoline:storage:tank Assembly
Oct 2, 2015
Mazda North American Operations (Mazda) is recalling certain model year 2015-2016 Mazda3 vehicles manufactured May 21, 2015, to August 25, 2015. The affected vehicles are equipped with a fuel tank with a shut-off valve that can allow fuel to enter into the fuel tank emissions systems. If enough fuel enters the emission system it may leak out onto the ground or result in an engine stall.
Consequence & remedy
Consequence: A fuel leak in the presence of an ignition source increases the risk of a fire. An engine that stalls increases the risk of a crash.
Remedy: Mazda will notify owners, and dealers will inspect the vehicle's fuel shut-off valve. As needed, the fuel shut-off valve and the affected fuel tank emissions system components will be replaced, free of charge. The recall began on October 20, 2015. Owners are advised not to drive their vehicle until the repairs have been completed. Mazda will provide rental cars until that time. Owners may contact the Mazda Customer Experience Center at 1-800- 222-5500, option #6. Mazda's number for this recall is 8615J.
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.
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