2021 Mazda CX-30 Problems, Complaints & Recalls
- Compared with other CX-30 years
- Far more complaints than other years 1st of 7 for complaints
- Safety recalls
- 2 recalls: check your VIN
- NHTSA crash rating
- 5 out of 5 stars
Owners have filed 101 complaints with NHTSA about the 2021 Mazda CX-30. That is the most of any CX-30 model year in the database (7 years). The most reported problem area is engine (49 complaints, 49%), typically at around 16,845 miles. Complaints mention 10 crashes, 13 injuries. There are 2 safety recalls covering this model year.
- 101owner complaints
- 2safety recalls
- 0NHTSA investigations
- 10complaints mentioning a crash
Complaints are unverified owner reports and are not adjusted for sales volume.
Most common 2021 Mazda CX-30 problems
Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.
| Problem area | Complaints | Share | Median miles | Owners mention most | Typical repair cost |
|---|---|---|---|---|---|
| Engine | 49 | 49% | 16,845 | — | — |
| Electrical System | 14 | 14% | 3,500 | — | — |
| Forward Collision Avoidance | 12 | 12% | 3,500 | — | — |
| Unknown or Other | 10 | 10% | — | — | — |
| Visibility/wiper | 9 | 9% | — | — | — |
| Power Train | 8 | 8% | — | — | — |
| Vehicle Speed Control | 8 | 8% | 31,000 | — | — |
| Service Brakes | 6 | 6% | — | — | — |
| Air Bags | 3 | 3% | 13,450 | — | — |
| Fuel/propulsion System | 3 | 3% | — | — | — |
| Visibility | 3 | 3% | 22,000 | — | — |
| Seats | 2 | 2% | — | — | — |
| Service Brakes, Hydraulic | 2 | 2% | 26,500 | — | — |
| Exterior Lighting | 1 | 1% | — | — | — |
| Lane Departure | 1 | 1% | — | — | — |
| Latches/locks/linkages | 1 | 1% | — | — | — |
| Seat Belts | 1 | 1% | — | — | — |
| Steering | 1 | 1% | — | — | — |
| Structure | 1 | 1% | — | — | — |
| Suspension | 1 | 1% | — | — | — |
| Wheels | 1 | 1% | — | — | — |
One complaint can list several problem areas, so shares can add up to more than 100%.
Complaints by year received
2021 Mazda CX-30 recalls (2)
Tap a recall to see the problem, the risk and the fix.
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.
To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.
Recent owner reports
Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.
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…
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…
Excessive oil consumption. Regularly have a low oil warning come up about 6000 kms after an oil change. Oil is always low when checked.
The vehicle experienced a premature internal A/C failure, resulting in a total loss of climate control refrigerant. Because the A/C system failed, the vehicle's windshield defroster completely stopped removing humidity and moisture from the cabin air. This caused the front windshield to instantly…
On June 3rd, 2026, about 1:15 PM, I braked in the rain because there was a stopped car in front of me. The brakes did not work; the Automatic Emergency brakes did not work; the Forward Collision Warning did not work and I hit the car in front of me causing a 3 car accident. As I hit the car I saw…
Other Mazda CX-30 years
| Year | Complaints | Recalls |
|---|---|---|
| 2026 CX-30 | 4 | 0 |
| 2025 CX-30 | 26 | 1 |
| 2024 CX-30 | 31 | 2 |
| 2023 CX-30 | 25 | 1 |
| 2022 CX-30 | 33 | 1 |
| 2021 | 101 | 2 |
| 2020 CX-30 | 34 | 3 |
See all Mazda CX-30 problems by year, every Mazda model, or the Mazda VIN decoder.
Similar Mazda models
Embed this 2021 Mazda CX-30 badge on your site
Copy this code into your blog or forum post. It shows live complaint and recall counts and links back here.
Frequently asked questions
What are the most common problems with the 2021 Mazda CX-30?
Owners most often report engine, electrical system, forward collision avoidance problems. The top one, engine, accounts for 49 complaints.
Was there a recall on the 2021 Mazda CX-30?
Yes, 2 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.
Was the 2021 Mazda CX-30 a good year?
Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other CX-30 model years, the 2021 has far more complaints than most years, and NHTSA rates it 5 out of 5 stars overall in crash tests. Always get a pre-purchase inspection and check the VIN for open recalls.