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2021 Mazda Cx-30
Solid pick — the complaint record is strong for its age. It does carry safety recalls, so confirm every one shows "remedy completed" on the VIN before money changes hands.
99 owner complaints · 2 recalls · data verified July 10, 2026 · source: NHTSA
Why buy?
Engine problems dominate (49% of complaints, typically reported near 6k miles).
The math, shown
Full methodology →Complaints filed per year
Fading = early teething worked out. Climbing = problems aging in.
The road ahead
What breaks on a 2021 Mazda Cx-30, plotted where owners report it happening.
Also reported (mileage varies): Electrical system (13) · Driver assistance (12) · Visibility & wipers (10) · Brakes (8)
Mileage medians come from owners who mentioned an odometer reading in their NHTSA complaint — a rough guide, not a schedule.
Engine
49%49 complaints · typically near 6k mi · 6 in the last 2 years
“Excessive oil consumption. Regularly have a low oil warning come up about 6000 kms after an oil change. Oil is always low when checked.”
Electrical system
13%13 complaints · 6 in the last 2 years
“Two issues A) my usb or display stop to work often I have reset to make it work again, look like loose electrical 2) many time it has also happened start key malfuncti…”
Driver assistance
12%12 complaints · 3 in the last 2 years
“Two issues A) my usb or display stop to work often I have reset to make it work again, look like loose electrical 2) many time it has also happened start key malfuncti…”
Visibility & wipers
10%10 complaints · 2 in the last 2 years
“I have noticed the windshield is distorted and from reports all over the Internet that seems to be an issue with 20-22 mazda cx-30’s and I don’t think Mazda is going t…”
Recalls (2)
Safety recall repairs are free at the brand’s franchised dealers. Before buying, run the VIN at nhtsa.gov/recalls and make the seller show the work was done.
Tires · 21V101000
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
Risk: A sudden air leak from the tire air valve may cause a loss of vehicle control while driving, increasing the risk of a crash.
Fix: Mazda will notify owners, and dealers will replace all four tire air valves with new parts, free of charge. The recall began April 6, 2021. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 4721B.
Structure · 21V086000
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.
Risk: If the power liftgate unexpectedly lowers while a person is accessing the rear storage area of the vehicle, it can increase their risk of injury.
Fix: Mazda will notify owners, and dealers will update the power liftgate control module software and inspect the serial number of the power liftgate drive unit, replacing it if necessary, free of charge. The recall began April 8, 2021. Owners may contact Mazda customer service at 1-800-222-5500 option 4. Mazda's number for this recall is 4621B.
Before you hand over money
Verify the recall work was done
NHTSA’s free lookup shows whether this exact car had its recall remedies completed.
Free NHTSA VIN check ↗Get a pre-purchase inspection
A $150–$250 independent inspection of this exact 2021 Mazda CX-30 beats every score on the internet, including ours.
What to ask forNot set on the 2021? See how every Cx-30 model year scores →
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What owners say
Real owners of this exact model-year, shown separately from the NHTSA score — if they disagree, that’s worth knowing.