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What 105 owners told NHTSA about the 2020 Mazda Cx-50

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (105)Crash / fire / injury (12)Electrical system (30)Engine (17)Brakes (13)Driver assistance (11)Transmission & drivetrain (8)Body & structure (6)Airbags (5)Speed control (5)Fuel system (4)Lane Departure (4)

2 of 105 complaints match · Speed control · crash/fire/injury only · clear filters

Sep 24, 2024Speed controlBrakesCrash1 injury

The vehicle accelerated on its own, while I was parking. My foot was on the brake when the vehicle just took off. It continued to accelerate until a building stopped it. I continued to brake but the vehicle did not stop. Once the vehicle collided with building, saw on the digital read out the "Brake System Malfunction" and then Camera Malfunction. The vehicle was towed from the site and the insurance adjuster has sent me word that the vehicle is a total loss.

NHTSA ODI 11616109

Apr 1, 2021Speed controlBrakesCrash

I WAS PARKED AT A FAST FOOD RESTAURANT THAT HAD AN OUTDOOR KIOSK FOR PAYMENT. I GOT OUT OF MY CAR TO PAY AND GOT BACK IN. AFTER ABOUT A MINUTE OR TWO MY CAR ACCELERATED FORWARD, GOING OVER A SLOPED CURB AND DOWN A SHORT LOW GRADE HILL, HITTING A POLE. I WAS CONFUSED TO HOW THE CAR WOULD GO FORWARD BECAUSE I WAS IN PARK THE WHOLE TIME.

NHTSA ODI 11405931

Working with the data? Download all 105 complaints as CSV · fetched from NHTSA July 19, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2020 Mazda Cx-50 verdict →