2021 Mazda CX-30 recalls, problems & safety ratings
NHTSA lists 2 recalls for the 2021 Mazda CX-30 and 101 owner complaints. The most-reported problem areas are engine (49), electrical system (14), forward collision avoidance (12). It earned a 5-star overall NHTSA safety rating. EPA-rated fuel economy is 26–28 mpg combined, depending on configuration.
The 2021 has the most owner complaints of any CX-30 model year from 2020 to 2026. It has 2 recalls vs. an average of 1.4 per model year.
Recalls 2
Every recall NHTSA lists for the 2021 Mazda CX-30. Not every recall applies to every vehicle, so check your VIN. Recall repairs are free at a franchised dealer.
Tires · valve
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.
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 · body · hatchback/liftgate
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.
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.
Common problems
From complaints owners filed with NHTSA. Complaints aren't verified, but patterns across hundreds of owners point to known weak spots.
Most-reported problem areas
By the numbers
Recent owner reports
For the past 2 years there has been a severe parasitic battery drain issue that drains that battery partially or in some cases completely ruins new batteries. Car has spent a cumulative total of 3 months with a dealer trying to find the source. 5 batteries in 2 years and often times need to jump start the car. Car has been at dealer dozens of times and they have been unable to…
The climate control system suffered a sudden, complete failure due to an engineering defect documented in Mazda Technical Service Bulletin (TSB) ID: MC-10203760-0001. The factory evaporator core leaked refrigerant rapidly starving the A/C compressor of essential lubricating oil. This caused the compressor to overheat and complete seize. This failure occurred during extreme summ…
Excessive oil consumption. Regularly have a low oil warning come up about 6000 kms after an oil change. Oil is always low when checked.
Safety ratings
2021 Mazda CX-30 SUV AWD
2021 Mazda CX-30 SUV FWD
Fuel economy
EPA ratings for common configurations of the 2021 Mazda CX-30.
CX-30 2WD
Auto (S6) · 4 cyl · 2.5 L · SIDI
Regular
CX-30 2WD
Auto (S6) · 4 cyl · 2.5 L · SIDI; With Cylinder Deactivation
Regular
CX-30 4WD
Auto (S6) · 4 cyl · 2.5 L · SIDI
Regular
CX-30 4WD
Auto (S6) · 4 cyl · 2.5 L · SIDI; With Cylinder Deactivation
Regular
Other model years
Questions
How many recalls does the 2021 Mazda CX-30 have?
NHTSA lists 2 recalls for the 2021 Mazda CX-30, most recently for tires · valve (02/22/2021). Recall repairs are free at a franchised dealer. Enter your VIN to check whether a recall applies to your vehicle.
What are the most common problems with the 2021 Mazda CX-30?
Based on 101 owner complaints filed with NHTSA, the most-reported areas are engine (49), electrical system (14), forward collision avoidance (12).
Is the 2021 Mazda CX-30 safe?
The 2021 Mazda CX-30 earned a 5-star overall rating in NHTSA's 5-star safety ratings.
Is the 2021 a good year for the Mazda CX-30?
The 2021 has the most owner complaints of any CX-30 model year from 2020 to 2026. It has 2 recalls vs. an average of 1.4 per model year.
What gas mileage does the 2021 Mazda CX-30 get?
EPA ratings for the 2021 Mazda CX-30 range from 26 to 28 mpg combined, depending on configuration.
Own a 2021 Mazda CX-30 in South Carolina?
Our mobile mechanics diagnose and fix the problems above at your home, office or fleet lot in Lexington, Columbia and the Midlands, with dealer-grade scan tools.
Related vehicles
Sources: NHTSA recalls, complaints and 5-Star Safety Ratings APIs; EPA fueleconomy.gov. Data retrieved November 2, 2026. NHTSA model names used: CX-30.