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2021 Mazda CX-30

Gas
Small Sport Utility Vehicle 4WD
5 EPA-rated configurations
Data refreshed 2026-09-11
B
Safety Signal
84 / 100 from the NHTSA recall record
RecallsNHTSA campaigns2
Complaintsowner reports to NHTSA100
Crash ratingNHTSA overall5★
Fuel economybest combined, EPA28 mpg
2026202520242023202220212020

The 2021 Mazda CX-30 is sold in the U.S. as a gas compact SUV with 5 EPA-rated configurations. The most efficient version, the CX-30 2WD, is EPA-rated at 28 mpg combined. NHTSA lists 2 recall campaigns for this model year, which gives it a Safety Signal grade of B. Owners have filed 100 complaints, most often about the engine. NHTSA crash-tested it at 5 stars overall.

Specs & fuel economy

Source: EPA fueleconomy.gov
ConfigurationPowertrainDriveEngine / motorCityHwyCombAnnual fuel*
CX-30 2WDGasFWD2.5L 4-cyl253328$2,250
CX-30 2WDGasFWD2.5L 4-cyl253328$2,250
CX-30 4WDGas4WD2.5L 4-cyl243126$2,400
CX-30 4WDGas4WD2.5L 4-cyl243126$2,400
CX-30 4WDGas4WD2.5L 4-cyl turbo223025$2,500

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 42852, 43159, 42857, 43163, 43578.

Factory warranty running out?

The 2021 Mazda CX-30 is in the years where transmission, electronics and drivetrain repairs land on the owner. Compare extended-coverage quotes in about two minutes.

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Recalls (2)

Source: NHTSA recall database
▲high

Tires

4721B
599 vehicles
ProblemMazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.RiskA sudden air leak from the tire air valve may cause a loss of vehicle control while driving, increasing the risk of a crash.FixMazda 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.
NHTSA campaign 21V101000reported Feb 22, 2021Mazda North American Operations
▲high

Structure

4621B
13,857 vehicles
ProblemMazda 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.RiskIf the power liftgate unexpectedly lowers while a person is accessing the rear storage area of the vehicle, it can increase their risk of injury.FixMazda 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.
NHTSA campaign 21V086000reported Feb 18, 2021Mazda North American Operations

Owner complaints

Source: NHTSA complaint database
100complaints filed

10 involved a crash · 0 a fire · 13 injuries · 0 deaths reported

Filed per year: 2021: 8 · 2022: 37 · 2023: 23 · 2024: 17 · 2025: 7 · 2026: 8

Most-cited components

Engine49
Electrical System13
Forward Collision Avoidance13
Unspecified10
Visibility/Wiper9
Vehicle Speed Control8

What owners describe

“Driving home from work today I got a "low engine oil level" alert/warning. First time this has happened. I have approx. 15,500 miles on my vehicle and it was serviced on 3/22/22 (11,828 miles). That service included a full oil and filter change. I see it has been noted that there is an oil leak with this particular veh…”Jun 20, 2022 · Engine · NHTSA owner report
“The windshield in my 2021 CX30 had a distorted view on the passenger side of vehicle. Took it in to dealership who confirmed that there was obvious distortion in the windshield. Windshield was replaced and the new windshield has the same issue. Mazda is now saying that it is "normal" to have some distortion on this par…”Jun 16, 2022 · Visibility/Wiper · NHTSA owner report
“Low engine oil light came on at 4600 miles. Brand new vehicle. Excessive consumption of oil known issue with this make/model”Jun 15, 2022 · Engine · NHTSA owner report

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Crash ratings

Source: NHTSA NCAP
ConfigurationOverallFrontalSideRolloverRollover risk
SUV AWD★★★★★★★★★★★★★★★★★★★☆15%
SUV FWD★★★★★★★★★★★★★★★★★★★☆16%

NHTSA New Car Assessment Program. Standard driver-assist: forward collision warning, lane departure warning, automatic emergency braking.

Other CX-30 model years

A

2026 Mazda CX-30

0 recalls · 3 complaints

A

2025 Mazda CX-30

1 recalls · 26 complaints

B

2024 Mazda CX-30

2 recalls · 30 complaints

A

2023 Mazda CX-30

1 recalls · 23 complaints

A

2022 Mazda CX-30

1 recalls · 33 complaints

D

2020 Mazda CX-30

3 recalls · 33 complaints

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.

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