Problems owners report
Complaints filed with NHTSA about the 2021 Mazda CX-30, by the system named in each complaint. One complaint can name several.
- Engine49
- Electrical system14
- Forward collision avoidance12
- Unknown or other10
- Visibility/wiper9
- Vehicle speed control8
- Power train8
- Service brakes6
- Air bags3
- Visibility3
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 13 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Fatal crashes in the US
From 2020 to 2023, 12 2021 CX-30 vehicles were involved in crashes on US public roads in which someone died; 7 people died inside them. This is a count, not a crash rate: it grows with the number of cars on the road.
NHTSA Fatality Analysis Reporting System (FARS), crash years 2020–2023 (public domain)
New York safety inspections
At its first New York inspection the 2021 Mazda CX-30 failed the safety check 0.73% of the time — 23% less often than the average 2021 passenger car (0.95%). Median odometer at inspection: 19,602 miles.
NY DMV Vehicle Inspections (vezn-fmmk), initial inspections since Aug 2021 · how we count
Registered new in Europe in 2021
41,195 new Mazda CX-30 cars were registered in the EU, Norway and Iceland in 2021; the largest markets were Germany (9,192), Italy (6,358), Spain (5,427).
- Average mass
- 1,471 kg
- Average CO₂
- 139 g/km (WLTP)
- Average power
- 111 kW
- Fuel type recorded
- Petrol 99% · Diesel 1.2%
European Environment Agency, CO₂ emissions from new passenger cars · averages weighted by registrations; CO₂ is the type-approval value; fuel type as recorded at registration, where many non-plug-in hybrids appear as petrol · re-use permitted with acknowledgement
Real-world fuel consumption
10,835 Mazda CX-30 cars first registered in Europe in 2021 report their fuel use through the on-board meter. Petrol hybrid versions use 7.2 l/100 km on the road against 6.1 in the WLTP test (+17%).
| Fuel | Cars | On the road | WLTP | Difference |
|---|---|---|---|---|
| Petrol | 1,673 | 7.2 | 6.0 | +21% |
| Petrol hybrid | 9,162 | 7.2 | 6.1 | +17% |
Litres per 100 km from the cars' own fuel meters (OBFCM), collected in 2024; the year is the year of first registration. All years together · European Environment Agency · CC BY 4.0
Engines
The most common engines in 2021 Mazda CX-30 cars on Dutch roads are the 2.0 hybrid (137 kW, 184 hp), 2.0 hybrid (90 kW, 121 hp) and 2.0 hybrid (132 kW, 177 hp), out of 4 versions with at least 20 cars.
| Engine | Power | Cars |
|---|---|---|
| 2.0 hybrid | 137 kW 184 hp | 1,711 |
| 2.0 hybrid | 90 kW 121 hp | 307 |
| 2.0 hybrid | 132 kW 177 hp | 301 |
| 2.0 hybrid | 110 kW 148 hp | 299 |
RDW Open Data (CC0): registered passenger cars and their fuel data · engine size rounded to 0.1 litre, net maximum power · versions with at least 20 cars
In the Netherlands
2,634 first registered in 2021 are on Dutch roads; 25% arrived later as imports. Median list price when new: €36,999.
Most common APK defects
- Bandenspanning niet op juiste waarde579
- Ruitenwisserinstallatie geeft onvoldoende zicht154
- Dimlicht onjuist afgesteld149
- Band onvoldoende profiel132
- Band(en) aanwezig met een profieldiepte van 1,6 t/m 2,5 mm117
- Band beschadigd67
- Remschijf ernstig gecorrodeerd51
- Mechanische delen van het remsysteem vertonen slijtage34
Colours
RDW Open Data: registered vehicles and APK defects (CC0) · defect descriptions in the RDW's Dutch wording
In the United Kingdom
7,784 cars built in 2021 were licensed for the road at the end of 2025, and 20 more were declared off the road (SORN).
Department for Transport and DVLA, vehicle licensing statistics (table VEH0124, year of manufacture) · Open Government Licence v3.0
MOT test results in Great Britain
In 2023, 168 of these cars first registered in 2021 took their annual MOT test. 97% passed first time; among all cars first registered in 2021 the figure was 91%.
| Failed on | These cars | All cars from 2021 |
|---|---|---|
| Tyres | 1.2% | 3.3% |
| Visibility | 1.2% | 1.6% |
| Noise, emissions and leaks | 0.6% | 0.4% |
DVSA anonymised MOT tests and results, 2023 (Department for Transport) · Open Government Licence v3.0 · first tests only; a fix made at the test station within the hour still counts as a fail
In Finland
386 of these cars first registered in 2021 were in use in Finland on 30 Jun 2026, with an average of 58,000 km on the odometer at their last inspection.
Traficom (Finnish Transport and Communications Agency), open data on vehicles in use · CC BY 4.0
In New Zealand
873 2021 cars are on the New Zealand register; 13% arrived as used imports, 86% were sold new in New Zealand.
NZ Transport Agency Waka Kotahi, Motor Vehicle Register (March 2026) · CC BY 4.0
Crash-test ratings
NHTSA 5-star results for 2 variants; 2 of 2 rated variants score five stars overall. Rollover risk is the estimated chance of rolling over in a single-vehicle crash.
| Variant | Overall | Rollover risk |
|---|---|---|
| 2021 Mazda CX-30 SUV AWD | ★★★★★ | 14.7 % |
| 2021 Mazda CX-30 SUV FWD | ★★★★★ | 15.5 % |
- Electronic stability control
- Standard
- Forward collision warning
- Standard
- Lane departure warning
- Standard
- Best overall rating
- 5 / 5
NHTSA New Car Assessment Program (5-Star Safety Ratings), api.nhtsa.gov · US federal work, public domain
Fuel consumption
Official Canadian test results for 5 variants: combined 8.1–9.3 L/100 km (about 25–29 mpg US), CO₂ 189–220 g/km.
| Variant | City | Highway | Combined |
|---|---|---|---|
| CX-30 · Sport utility vehicle: Small · Regular gasoline | 8.9 | 7.1 | 8.1 |
| CX-30 · Sport utility vehicle: Small · Regular gasoline | 9.3 | 7.1 | 8.3 |
| CX-30 4WD · Sport utility vehicle: Small · Regular gasoline | 9.4 | 7.7 | 8.6 |
| CX-30 4WD · Sport utility vehicle: Small · Regular gasoline | 9.9 | 7.7 | 8.9 |
| CX-30 Turbo 4WD · Sport utility vehicle: Small · Regular gasoline | 10.5 | 7.9 | 9.3 |
Litres per 100 km. Natural Resources Canada, Fuel consumption ratings (open.canada.ca) · Open Government Licence – Canada
Recalls in Canada
2 Transport Canada recalls for the 2021 Mazda CX-30.
| 2021091 22 Feb 2021 | Wheels Issue: On certain vehicles, the valve stem for the tires may have been damaged during assembly. As a result, the tires could slowly or suddenly lose air press… |
| 2021075 19 Feb 2021 | Structure Issue: On certain vehicles, the power liftgate may partially lower from the fully open position when the vehicle is parked facing uphill on a slope. The liftg… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
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.
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Mazda told its dealers about the 2021 Mazda CX-30: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 11011141 | Some customers may report concerns with interior upholstery surface stains particularly on high contact areas (e.g.: seats, steering wheel, door panels, shifter...etc.). This may be caused by skin oils or chemicals such as hand lotions. |
| 11011140 | When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to activate the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated. |
| 11011139 | A customer may complain of a rattle noise from the right side of the dash. The noise may be coming from the passenger side airbag. |
| 11011138 | Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF Climate Control 3. MAZDA CONNECT connected vehicle reception strength icon shows "X" or "\". |
| 11011137 | On certain subject vehicles, the check engine light is illuminated with diagnostic trouble code (DTC) P0126, due to the fail-safe thermostat being stuck open. Additionally, you may notice one or more of the following symptoms: -Engine takes longer to warm up. -Engine temperature gauge fluctuates. -Low coolant temperature indicator (blue) light stays on longer or turns on while driving. -Poor heater performance, especially at idle. This warranty extension program applies only to the replacement of fail-safe thermostat of the vehicle exhibiting the concerns mentioned above. If the check engine l |
| 11011133 | Some customers may experience a check engine light ON with DTC P0126:00 (Thermostat stuck open) and one or more of the following symptoms: Engine takes longer to warm up. Engine temperature gauge fluctuates. Low coolant temperature indicator (blue) light stays on longer or turns on while driving. Poor heater performance, especially at idle. |
| 11010994 | On some vehicles, the front door glass run channel may interfere with the rear door garnish. Since the front door glass run channel is not fixed strongly enough to the door, repetition of door operation may result in interference and damage to the rear door rubber seal. |
| 11009665 | Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) to extend the warranty coverage for a specific repair of the fail-safe thermostat in the coolant control valve on certain CX-5, Mazda3, CX-3, Mazda6 and CX-30 vehicles that are equipped with the suspected coolant control valve. The warranty coverage for a specific repair of fail-safe thermostat has been extended to 15 years (180 months) /150,000 miles (240,000 km) whichever comes first, from the original warranty start date. Concern Outline: On certain subject vehicles, the check engine light is illuminated with DTC |
| 11009664 | Mazda Motor Corporation has decided to conduct a Special Service Program (SSP) to extend the warranty coverage for a specific repair of the fail-safe thermostat in the coolant control valve on certain CX-5, Mazda3, CX-3, Mazda6 and CX-30 vehicles that are equipped with the suspected coolant control valve. The warranty coverage for a specific repair of fail-safe thermostat has been extended to 15 years (180 months) /150,000 miles (240,000 km) whichever comes first, from the original warranty start date. Concern Outline: On certain subject vehicles, the check engine light is illuminated with DTC |
| 11009663 | SPECIAL SERVICE PROGRAM - SSPD5 - WARRANTY EXTENSION - MULTI-MODEL - VALVE STEM SEALS CLASS ACTION In conjunction with a Class Action Settlement, Mazda Motor Corporation has decided to conduct an extension of the Engine powertrain warranty related to excessive oil consumption. In addition, there is a Reimbursement Program, for limited qualifying out-of-pocket expenses (prior oil changes and additional oil purchased before the normal oil change interval due to oil consumption concerns) on certain CX-9, CX-5, Mazda6, Mazda3, and CX-30 vehicles equipped with a 2.5L turbocharged engine with the af |
| 11009654 | The SKYACTIV-DRIVE FW6A-EL AT uses Automatic Transmission Fluid (ATF) Type: FZ. Only use ATF-FZ to fill or top off the fluid level. ATF-FZ is specially designed for use in the SKYACTIV-DRIVE series AT. It is a low viscosity formula with less friction for better fuel economy. NOTE: ATF-FZ is colored blue for easy identification. |
| 11009647 | A new cylinder head assembly for service parts has been newly established for SKYACTIV-G 2.5 with cylinder deactivation when replacement is needed. Valves, valve springs, valve spring seats, and cotters (IN/EX) are included in the new assembly. Hotline and MASH authorization is not required to order parts for performing this repair. If there are any questions on part ordering or part status, contact the Dealer Assistance Group. |
| 11009644 | Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging. If you encounter a customer complaint for any one of these symptoms, refer to the following information to understand why symptoms may occur, and to better assist the customer in resolving their specific brake concern. |
| 11009635 | Some customers may complain that the rear console lid does not slide smoothly. This may be caused by improperly positioned felt pads attached to the rear console lid lock, which may have moved out of position after repetitive use. The exposed adhesive residue may stick to the rail and disrupt smooth sliding operation. |
| 11008580 | Mazda Connect Services - Frequently Asked Questions (FAQ) |
| 11008579 | Mazda Connect Services - Frequently Asked Questions (FAQ) |
| 11008578 | When the Telematics Control Unit (TCU) replacement is necessary due to a failure, use MDARS to activate the new TCU after replacement. Use the information in this service alert to initialize the new TCU until the procedure on MGSS is updated. |
| 11008577 | Some customers may complain about scratches on the instrument cluster lens. |
| 11008576 | Qi Wireless Charger symptom troubleshooting. |
| 11008575 | Some customers may complain about the Active Driving Display not displaying turn by turn (TBT) travel direction or navigation information. |
| 11008574 | Some customers may experience a Connected Vehicle failure. The MyMazda App may display an Error Code. This document provides Error Code description and recovery information to assist with repairs. |
| 11008573 | Some customers may complain about any of the following: 1. Infotainment Center Display does not provide the Authorization Code (OTP) during the MyMazda App Connected Vehicle enrollment. 2. Remote function(s) inoperative. Engine Start / Stop Door Lock / Unlock Lights ON / OFF Climate Control |
| 11008571 | Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair procedure. |
| 11008568 | Some customers may experience a Telematics Malfunction message in the instrument cluster with DTC U3000:00-TCU (Emergency call unit/telematics communication unit internal malfunction) or U3000:04-TCU (Telematics communication unit internal malfunction) stored in memory. This is caused by improper control software of the telematics communication unit (TCU). To eliminate this concern, the control software of the TCU has been modified. |
| 11008430 | This information will give you the necessary knowledge to respond to customers concerns of Smart Brake Support (SBS) unintended braking. By educating the customer on the system operation, it should reduce their anxiety or distrust of the vehicle. |
NHTSA manufacturer communications (public domain)