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2021 Mazda CX-30: True Cost, Problems & Verdict

100 NHTSA owner complaints · 2 recalls · data-computed verdict. No opinions — public data only.

Reviewed by the MotorJury data desk · 2 sources · Last updated 2026-08-20
Mazda CX-30
Photo: Wikimedia Commons · open the model page
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Owner complaints: 100 filed with NHTSA

Complaints per year on the road: 20.0

Engine49Electrical System13Forward Collision Avoidance12Unknown Or Other10Visibility/Wiper9Service Brakes8

What owners say

Verbatim reports filed with the United States safety regulator (NHTSA) by owners of this exact model year. Public record.

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

Recalls: 2 campaigns

2021
CampaignComponentSummary
21V086000Structure:Body:Hatchback/LiftgateMazda North American Operations (Mazda) is recalling certain 2020-2021 CX-30 vehicles. When fully opened, the power liftgate may partially …
21V101000Tires:ValveMazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.…

True cost of ownership

Fuel (your region) $0
Maintenance band (your region) $975$1,965
Estimated running cost this year (age 5) $1,965

Re-priced automatically from your country's retail fuel, electricity and parts indices — change country in the bar at the top. Estimates; see methodology.

02468101214$3,815vehicle age (years)
fuel/energy + maintenance band (annual, USD, estimate)

Run your own numbers in the true-cost calculator →

FAQ

What is the most common problem with the 2021 Mazda CX-30?

The most-reported issue in NHTSA complaint data is Engine (49 complaints in our indexed sample).

Is the 2021 Mazda CX-30 a good used car to buy?

Our data verdict is CAUTION with a reliability score of 66/100, computed from 100 NHTSA complaints and 2 recall campaigns. See the verdict card for the top reasons.

Does the 2021 Mazda CX-30 have recalls?

Yes — NHTSA lists 2 recall campaign(s) for the 2021 Mazda CX-30, 0 of them touching fire, crash or stall risk, the most recent recorded 18/02/2021. Check this car's VIN at nhtsa.gov/recalls before you buy.

What will a 2021 Mazda CX-30 really cost YOU per year?

Fuel, maintenance band and depreciation — computed from public data in 10 seconds.

Open the true-cost calculator

Data sources

Complaints & recalls: NHTSA · Fuel economy: EPA fueleconomy.gov · Scoring: our published methodology.
Maintenance bands are industry-average estimates (AAA Your Driving Costs, CarMD index) — labeled estimates, not measurements. Last updated: 2026-08-20.

66RELIABILITY / 100
CAUTION
  • 100 NHTSA complaints on record (20.0/yr of exposure)
  • 2 recall campaigns, 0 touching safety-critical systems

How this score is computed →

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