2021 Mazda CX-30 problems and recalls

49% of owner complaints on the 2021 Mazda CX-30 related to the Engine (49 of 100).

100
Complaints
2
Recalls
10
Crash reports
0
Fire reports
13
Injuries
102.5
Severity index

Severity index 102.5 High. The index weights crashes, fires, injuries and fatalities per 100 complaints. How it is calculated.

Middle half of all tracked vehiclesThis vehicle: 102.5p25 46p75 80cleanestworst
Severity index against the quartile range for all tracked vehicles.

Ranked 5 of 92 by severity index among 2021 vehicles with at least 40 complaints, highest first. 95% of those vehicles scored lower. Full 2021 ranking.

Components cited in complaints

EngineEngine: 49 complaints (49.0%)49 49%Electrical SystemElectrical System: 13 complaints (13.0%)13 13%Forward Collision Avoid…Forward Collision Avoidance: 12 complaints (12.0%)12 12%Unknown Or OtherUnknown Or Other: 10 complaints (10.0%)10 10%Visibility/WiperVisibility/Wiper: 9 complaints (9.0%)9 9%Service BrakesService Brakes: 8 complaints (8.0%)8 8%Power TrainPower Train: 8 complaints (8.0%)8 8%Vehicle Speed ControlVehicle Speed Control: 8 complaints (8.0%)8 8%
A single complaint can cite more than one component, so shares total over 100%.
ComponentComplaintsShare of complaints citing it
ENGINE4949.0%
ELECTRICAL SYSTEM1313.0%
FORWARD COLLISION AVOIDANCE1212.0%
UNKNOWN OR OTHER1010.0%
VISIBILITY/WIPER99.0%
SERVICE BRAKES88.0%
POWER TRAIN88.0%
VEHICLE SPEED CONTROL88.0%

Complaints filed per year

018372021: 82022: 372023: 232024: 172025: 72026: 8 (partial year)21223723242526
Complaints by the calendar year they were filed. The hatched bar is the current year to date.
YearComplaints
20218
202237
202323
202417
20257
2026 (year to date)8
Filings in 2023 to 2025 were close to 2021 to 2022 (47 against 45).

Recall campaigns

CampaignReportedComponentSummary
21V08600018/02/2021STRUCTURE:BODY:HATCHBACK/LIFTGATEMazda 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.
21V10100022/02/2021TIRES:VALVEMazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.

Other Mazda CX-30 model years

Severity index for every other model year on file. Compare all 6 years side by side.

Source. NHTSA public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-08-07. Complaints are unverified consumer reports. Totals vary with units sold and years on the road. Not affiliated with NHTSA or any manufacturer.