100 owner complaints filed with the United States safety regulator · top issue: Engine · verdict CAUTION 66/100
“Excessive oil consumption. Regularly have a low oil warning come up about 6000 kms after an oil change. Oil is always low when checked.”NHTSA complaint, 2021 Mazda CX-30 owner
“On June 3rd, 2026, about 1:15 PM, I braked in the rain because there was a stopped car in front of me. The brakes did not work; the Automatic Emergency brakes did not work; the Forward Collision Warning did not work and I hit the car in front of me causing a 3 car accident. As I hit the car I saw the Forward Collision Warning come on and then go out. Unfortunately, the brakes worked after that and the Mazda Collision”NHTSA complaint, 2021 Mazda CX-30 owner
“Following a recent inspection at Perry Mazda in Santa Barbara, my vehicle was diagnosed with a failed clock spring mechanism causing airbag malfunction warnings. Clock spring failure under 70K miles on a 2021 vehicle is premature and suggests a defect rather than normal wear. I contacted Mazda North America and it has been over a week without a response. I have maintained the vehicle responsible and have no history ”NHTSA complaint, 2021 Mazda CX-30 owner
| Reported | Component | Summary |
|---|---|---|
| 18/02/2021 | Structure:Body:Hatchback/Liftgate | Mazda North American Operations (Mazda) is recalling certain 2020-2021 CX-30 vehicles. When fully opened, the power liftgate may partially lower unexpectedly when the vehicle is parked facing uphill on a slope. |
| 22/02/2021 | Tires:Valve | Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve. |
On the federal record it scores 66/100: 100 owner complaints (20 per year on the road) and 2 recall campaigns, 0 touching safety-critical systems.
The most-reported component in NHTSA complaints is Engine, with 49 of 101 categorised reports.
The 2021 Mazda CX-30 scored 66/100 on the federal record.