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Mazda Cx-30 Engine Problems

76 owner complaints filed with NHTSA across 6 model years.

Complaints by Year

Worst year: 2021. Best year: 2024.

Owner Reports

A representative sample of complaints filed with NHTSA.

Engine · 2020 4

The front camera didn't operate properly The brakes have an elongated stopping distance

Engine · 2021 2

Excessive oil consumption. Regularly have a low oil warning come up about 6000 kms after an oil change. Oil is always low when checked.

Engine · 2021 2

While driving, on approach to a stop signal, at an intersection the car stopped moving. The display said engine malfunction, have inspected. The electronics and engine continued to operate, but the car would not move when gas pedal was d...

Engine · 2025 2

It seems like the computer has defaulted to receive the lowest possible gas mileage- if this is somehow communicating with the fuel system- its definitely affecting how much mileage I could be getting and robbing me of up to 100 miles pe...

Engine · 2025 2

Car is forecasted to get 290 miles off a full tank after doing nothing but highway driving. 10 miles less than when I first drove it (off the lot and primary highway driving) and 60 miles less than it should according to Mazda statement ...

Engine · 2025 2

I have noticed over 30 things wrong with this car. Including but not limited to- the FIRST THINGS I mentioned to the dealership there seems to be apull to the right (suspension/alignment). The car randomly starts driving or feeling 'je...

Engine · 2020 2

Low Engine Oil Light keeps appearing at seemingly random intervals. I will heat up my vehicle, begin driving, and sometimes after 10 minutes, sometimes after 20 minutes it will come on. I drove 2.5 hours and it did not come on at all. It...

Engine · 2021 2

The contact owns a 2021 Mazda CX-30. The contact stated while driving 65 MPH, the vehicle stalled. The messages "Engine Malfunction" and "Computer System Issues" were displayed. The contact was able to pull over to the side of the road. ...

Engine · 2021 2

My oil changes were affected as well.

Engine · 2021 2

Car lunged forward when lightly stepping on the gas while making a turn onto a busy street. Then it later lagged in responding when I stepped on the gas. About 5 minutes later, the car dashboard lit up and said there was a transmission...

Engine · 2022 2

It has an oil consumption issue. Every 3,000-3,500 miles is will give the oil low light. It will be 1 quart low. The car takes 6 quarts of 5w30 synthetic oil and requires oil changes every 7,500-8,000 miles. I have had to put a quart i...

Engine · 2021 2

On multiple occasions, low oil warning lamp illuminates and I have confirmed low oil level. Dealer is unable to confirm and refuses to address Mazda TSB because oil level is no longer low since I topped it up. The failure lies in the val...

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