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Mazda CX30

2021 only

133 classified complaints 2 recalls

55,180 sold in the US for 2021.

18 complaints on file
per 10,000 sold

2021 Mazda CX30 have 133 classified complaints on record for that year specifically, plus 2 recalls. The most common issue in this year is Oil consumption and leaks, typically surfacing around 3,100 miles.

Computed directly from stored federal records for 2021 model years only — not blended with the rest of this vehicle's production run. See the full Mazda CX30 report for every year combined.

Where this year fits

2021

2022

Complaints filed per individual model year — highlighted bars link to their own dedicated page.

What breaks, and when — 2021 only

Oil consumption and leaks · Engine 52 complaints · 9.4/10k sold

Median onset: 3,100 miles.

Tends to show up earlier than this model's other issues. · More common in older model years.

Which other vehicles have oil consumption problems? →
Driver-assist cameras, radar and calibration · Electrical 15 complaints · 2.7/10k sold

Median onset: 3,500 miles.

Tends to show up earlier than this model's other issues. · More common in newer model years.

Which other vehicles have driver-assist problems? →
Doors, windows, latches, seats and trim · Body and interior 10 complaints · 1.8/10k sold

Median onset: 22,000 miles.

More common in older model years.

Wiring harness, grounds and connectors · Electrical 8 complaints · 1.4/10k sold

Onset mileage not consistently reported.

More common in newer model years.

Harsh, delayed or erratic shifting · Transmission 7 complaints · 1.3/10k sold

Median onset: 31,000 miles. 14.3% of these reported an injury, a death, or a crash with fire.

Tends to show up later than this model's other issues. · More common in older model years.

Which other vehicles have automatic transmission problems? →
Battery, alternator and charging · Electrical 7 complaints · 1.3/10k sold

Median onset: 30,590 miles.

Tends to show up later than this model's other issues. · More common in newer model years. · Typical repair: $250–$1,030 nationally.

Airbags, seatbelts and restraints · Body and interior 6 complaints · 1.1/10k sold

Median onset: 7,425 miles. 66.7% of these reported an injury, a death, or a crash with fire.

Tends to show up earlier than this model's other issues. · More common in older model years.

Body control and other modules · Electrical 6 complaints · 1.1/10k sold

Median onset: 41,750 miles.

Tends to show up later than this model's other issues. · More common in newer model years.

From owner-filed complaints to NHTSA, not independently verified. Federal mileage reporting on recent complaints is sparse — see how it works. Cost ranges are national estimates from book labor hours and parts pricing, not this vehicle's actual repair history — they don't account for your location or shop type.

Cost estimator: what will this one cost you?

Enter the car's year and mileage. See which known problems are due in your next 3 years, what each costs at your state's labor rates, which ones to ask the seller about, and routine maintenance to budget for.

How does 2021 compare with other CX30 years? Every model year ranked by complaints per 10,000 sold. See years →

Sources: NHTSA Office of Defects Investigation — complaints and recalls, scoped to 2021 model year. See the full Mazda CX30 report for every year and full specs/safety data.