Worst years for a Mazda CX-30

Owners have filed 393 complaints about the Mazda CX-30 with NHTSA across model years 2020 to 2026. More of them are about the engine & cooling than anything else.

Avoid

2021 Mazda CX-30

138 complaints — the highest FaultScore of any year, mostly engine & cooling.

Cleanest on record

2025 Mazda CX-30

51 complaints — the lowest FaultScore of the graded years.

Every Mazda CX-30 year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded
Year Grade Complaints Crashes Fires Median miles Most reported
2026 — 6 3 0 — Engine & Cooling
2025 B 51 3 0 — Electrical System
2024 D 50 5 1 — Driver Assist & Collision Avoidance
2023 C 45 12 0 37,000 Driver Assist & Collision Avoidance
2022 D 54 9 0 — Engine & Cooling
2021 F 138 15 0 13,450 Engine & Cooling
2020 C 49 3 0 3,950 Other & Unspecified

What breaks on a Mazda CX-30

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Engine & Cooling 68 17.3%

Worst in 2021

Worst in 2021

Worst in 2021

Worst in 2021

Brakes 34 8.7%

Worst in 2021

Windows, Mirrors & Wipers 21 5.3%

Worst in 2021

Transmission & Drivetrain 20 5.1%

Worst in 2021

Airbags 15 3.8%

Worst in 2024

Acceleration & Cruise Control 15 3.8%

Worst in 2021

Fuel & Propulsion 13 3.3%

Worst in 2020

Steering 12 3.1%

Worst in 2022

Body & Structure 10 2.5%

Worst in 2020

Wheels 7 1.8%

Worst in 2022

Suspension 6 1.5%

Worst in 2023

Exactly what failed on a Mazda CX-30

The named sub-assemblies behind those complaints, across every model year.

Automatic Emergency Braking 22 32.4%
Warnings 11 16.2%
Adaptive Cruise Control 9 13.2%
Body 8 11.8%
Assist 5 7.4%
Blind Spot Detection 5 7.4%
Warning 2 2.9%
Rearview System Braking 2 2.9%
Accelerator Pedal 2 2.9%
Lock 2 2.9%

Complaints filed over time

Every complaint about every Mazda CX-30, by the month it reached NHTSA.

Jan 2020 peak 27 Sep 2026

Compare the Mazda CX-30

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.