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Mazda Cx-50 Engine Problems

10 owner complaints filed with NHTSA across 3 model years.

Complaints by Year

Worst year: 2024. Best year: 2025.

Owner Reports

A representative sample of complaints filed with NHTSA.

Engine · 2024 4

Vehicle was dormant overnight and caught fire. Battery disintegrated and fire tore across the entire engine compartment and front end. Fire department conducted investigation and determined mechanical failure. Showed no signs of issue be...

Engine · 2023 4

On 1/14/2026, I was pulling into a parking space in a parking garage when the vehicle abruptly accelerated causing the vehicle to hit the concrete wall in front of me. No braking assist or front collision warning issued. Airbags deployed...

Engine · 2025 2

CRUISE CONTROL SURGES BEYOND NORMAL LIMITS, HAS TRIED TO TAKE CURVES ON EXITS SO FAST THE TIRES SLIDE AND I HAVE TO SLAM ON THE BRAKES. ALSO, WHEN PULLING OUT FROM BEHIND A CAR, THE CRUISE CONTROL KICKS IN TOO FAST AND IS FLYING TOWARD ...

Engine · 2025 2

First issue: Rough idle at start. The interior cabin vibrates enough to question the vehicle quality. The rough idle lasts about 40 seconds then engine switches to smooth vibration. It's actually unnerving. Second issue: it's well know...

Engine · 2024 2

Fuel issues P0460 fuel level sensor circuit. Engine malfunction light comes on with fuel sensor issue. The car is full of fuel or not even close to be empty but the sensor reads off triggering a chain of event. Killing car mid of the hi...

Engine · 2025 2

Check engine light came on at 600 miles. Took it to the dealer and the code was a p3400 code, cylinder deactivation fault. The dealership replaced both solenoids, part #PYFA-12-360A, found metal in OCV valves. When we got the car back...

Engine · 2023 2

I purchased this brand new 2023 Mazda CX-50 at the end of this July, and it has no incidents, no hits, no scratches at all. Last Sunday while driving it, out of no where, the 'Vehicle System Malfunction' message showed up and I dropped m...

Engine · 2023 1

Cylinder 3, loss of engine power . Safety feature on and off. Life threatening .in the Middle line, suddenly English loss the power almost car behind me crash on us at the time my wife with me in the car . Yes dealer said fuel injector...

Engine · 2024 1

The vehicle jerks while slowing down/low speed.

Engine · 2024 1

Automatic transmission failure, engine malfunction, safety driver function. My car will not accelerate, or move out of 1,2,3 gear.

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