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What 52 owners told NHTSA about the 2019 Mazda Cx-90 Phev

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 (52)Crash / fire / injury (1)Engine (22)Electrical system (7)Suspension (4)Transmission & drivetrain (4)Backup camera & sensors (3)Body & structure (3)Visibility & wipers (3)Brakes (2)Driver assistance (2)Fuel system (2)

2 of 52 complaints match · Driver assistance · clear filters

Mar 22, 2023BrakesDriver assistance

I was driving down the street with my foot in the gas going about 35mph. No cars in front or behind me. All of the sudden my car brakes for no reason. It was a hard brake. My foot was on the gas pedal when this happened. Then a bunch of warnings displayed on my screen: forward smart city brake malfunction, front camera sensor system malfunction, brake override system malfunction and smart brake malfunction. My check engine light, traction control light and parking brake light also came on. This was extremely dangerous and could have caused an accident the way the car decided to brake all by itself.

NHTSA ODI 11513294

Nov 23, 2020Driver assistance

MAZDA SMART BRAKING SYSTEM, FRONT RADAR WARNING LIGHTS COME ON AFTER CAR IS STARTED. WINDSHIELD AND FRONT EMBLEM IS CLEAN. NO INTENSE HEAT. COMES ON EVERY TIME WHEN STARTED. WILL NOT ALLOW CRUISE CONTROL TO BE SET. SOMETIMES A FUNNY BRAKE PEDAL FEEL WHEN APPLIED BUT DOES NOT BRAKE BY ITSELF....YET. THERE HAVE BEEN TSBS ON EARLIER MODELS WITH A REPLACEMENT FRONT CAMERA(FSC) FIX. MY CAR DOES HAVE THE 'NEW' CAMERA BUT IS OBVIOUSLY NOT FUNCTIONING PROPERLY.

NHTSA ODI 11375991

Working with the data? Download all 52 complaints as CSV · fetched from NHTSA July 18, 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 2019 Mazda Cx-90 Phev verdict →