Model year 2021 · Small Sport Utility Vehicle 2WD, Small Sport Utility Vehicle 4WD

2021 Mazda CX-30: recalls, fuel economy and safety ratings

EPA rates the 2021 Mazda CX-30 at 25–28 mpg combined across 5 versions. NHTSA lists 2 safety recalls and 101 owner complaints for this model year. Its best NHTSA overall crash-test rating is 5 out of 5 stars.

Safety recalls

EPA combined mpg

25–28

NHTSA overall rating

5/5

Recall file dated Oct 27, 2026 · EPA file dated Sep 29, 2026 · updated Oct 27, 2026, 7:34 AM EDT

Check your own car: enter your 17-character VIN at nhtsa.gov/recalls to see open recalls for that exact vehicle, and contact a Mazda dealer to schedule the repair — safety recall repairs are free. The list below covers the whole model year, so not every recall applies to every car.

2021 Mazda CX-30 recalls

NHTSA's recall file lists 2 safety recalls for the 2021 Mazda CX-30, newest first.

Tires: Valve

NHTSA 21V101000 Reported Feb 22, 2021

Filed by: Mazda Motor Corp. (manufacturer recall no. 4721B)
Units affected: 599 (estimate)
Problem: 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.
Remedy: 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.

Full recall record on nhtsa.gov

Structure: Body: Hatchback/liftgate

NHTSA 21V086000 Reported Feb 18, 2021

Filed by: Mazda Motor Corp. (manufacturer recall no. 4621B)
Units affected: 13,857 (estimate)
Problem: 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.
Remedy: 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.

Full recall record on nhtsa.gov

Recall summaries are written by NHTSA from manufacturers' defect reports. Dates are when NHTSA received the report.

2021 Mazda CX-30 fuel economy by version

EPA city/highway/combined estimates for each engine, transmission and drive combination. Annual fuel cost is EPA's estimate for 15,000 miles a year (55% city, 45% highway) at EPA's current fuel-price assumptions; your cost will vary.

2021 Mazda CX-30 EPA fuel economy
Version	Engine	Transmission	Drive	Fuel	City/Hwy/Comb	Fuel cost/yr	CO2 g/mi
CX-30 2WD	2.5L 4-cyl	Automatic 6-speed	Front-Wheel Drive	Regular	25/33/28 mpg	$2,400	313
CX-30 2WD	2.5L 4-cyl	Automatic 6-speed	Front-Wheel Drive	Regular	25/33/28 mpg	$2,400	319
CX-30 4WD	2.5L 4-cyl	Automatic 6-speed	4-Wheel Drive	Regular	24/31/26 mpg	$2,600	334
CX-30 4WD	2.5L 4-cyl	Automatic 6-speed	4-Wheel Drive	Regular	24/31/26 mpg	$2,600	341
CX-30 4WD	2.5L 4-cyl turbo	Automatic 6-speed	4-Wheel Drive	Regular	22/30/25 mpg	$2,700	353

Source: FuelEconomy.gov (U.S. DOE and EPA), file dated Sep 29, 2026. Each version links to its FuelEconomy.gov record.

EPA estimates come from standardized lab tests so cars can be compared fairly; real-world mileage depends on speed, weather, load, tires and driving style.

2021 Mazda CX-30 crash-test ratings

NHTSA 5-Star Safety Ratings for the tested versions. More stars mean a lower chance of serious injury in that type of crash. Rollover risk is NHTSA's estimated chance of rolling over in a single-vehicle crash.

2021 Mazda CX-30 NHTSA 5-Star Safety Ratings
Tested vehicle	Overall	Frontal	Side	Rollover	Rollover risk	Forward collision warning
2021 Mazda CX-30 SUV AWD	5 stars	5 stars	5 stars	4 stars	14.7%	Standard
2021 Mazda CX-30 SUV FWD	5 stars	5 stars	5 stars	4 stars	15.5%	Standard

Source: NHTSA 5-Star Safety Ratings (New Car Assessment Program), checked Oct 26, 2026.

Star ratings compare vehicles of similar size and weight; a frontal rating for a large pickup is not directly comparable with one for a small car.

2021 Mazda CX-30 owner complaints

Owners have filed 101 complaints with NHTSA about the 2021 Mazda CX-30, most recently on Sep 20, 2026. 10 mention a crash, 0 a fire, 13 injured people and 0 deaths. These are unverified reports; a complaint is not proof of a defect.

Most-cited components in 2021 Mazda CX-30 complaints
Component named in complaints	Mentions
Engine	49
Electrical system	14
Unknown or other	10
Visibility/wiper	9
Power train	8
Vehicle speed control	7
Service brakes	6
Forward collision avoidance: Automatic emergency braking	5
Forward collision avoidance: Warnings	4
Air bags	3

Source: NHTSA consumer complaint files (complaints received since January 1, 2015). One complaint can name several components.

Had a safety problem with your vehicle? You can report it to NHTSA at nhtsa.gov/report-a-safety-problem.

Other Mazda CX-30 model years

Mazda CX-30 by model year
Year	Combined	Recalls	Complaints	Overall rating
2026 CX-30	25–27 mpg	0	4	5/5
2025 CX-30	25–29 mpg	1	26	5/5
2024 CX-30	25–29 mpg	2	33	5/5
2023 CX-30	25–29 mpg	1	25	5/5
2022 CX-30	25–26 mpg	1	33	5/5
2020 CX-30	26–28 mpg	3	34	5/5

All Mazda CX-30 years compared · Decode a VIN

Other 2021 Mazda models

2021 Mazda 2 2021 Mazda 3 2021 Mazda 6 2021 Mazda CX-3 2021 Mazda CX-5 2021 Mazda CX-9 2021 Mazda MX-5

Sources

Recalls: NHTSA recall flat file (FLAT_RCL_POST_2010), dated Oct 27, 2026, plus a live check of api.nhtsa.gov in your browser.
Complaints: NHTSA consumer complaint flat files (COMPLAINTS_RECEIVED), counts only — we do not republish complaint text.
Crash tests: NHTSA 5-Star Safety Ratings API.
Fuel economy: FuelEconomy.gov vehicles file (U.S. DOE and EPA), dated Sep 29, 2026.
NHTSA, EPA and DOE do not endorse OpenVIN. Vehicle names identify vehicles only; OpenVIN is not affiliated with Mazda.