2020 Mazda CX-30 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
33 owner complaints analyzed
3 distinct recall campaigns
3,950 mi median reported failure mileage
Scope: 2020 model year. Data snapshot: . 7 complaints include usable failure mileage.
Most common problems
Unknown Or Other is the most frequently named component, appearing in 9 of 33 complaints (27.3%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 7 | 21.2% |
| Electrical and battery issues | 5 | 15.2% |
| Transmission and shifting | 3 | 9.1% |
| Engine operation | 2 | 6.1% |
| Fuel system concerns | 2 | 6.1% |
| Steering behavior | 1 | 3.0% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Unknown Or Other | 9 |
| Service Brakes | 7 |
| Engine | 5 |
| Fuel/Propulsion System | 5 |
| Electrical System | 4 |
| Power Train | 4 |
| Structure:Body | 3 |
| Exterior Lighting | 2 |
Unknown Or Other: 9; Service Brakes: 7; Engine: 5; Fuel/Propulsion System: 5; Electrical System: 4; Power Train: 4; Structure:Body: 3; Exterior Lighting: 2
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 5 |
| 25,000 to 49,999 | 1 |
| 50,000 to 74,999 | 1 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 5; 25,000 to 49,999: 1; 50,000 to 74,999: 1; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (5). 26 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2020 | 8 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 8 |
| 2025 | 5 |
| 2026 | 3 |
2020: 8; 2021: 2; 2022: 4; 2023: 3; 2024: 8; 2025: 5; 2026: 3
Pattern summary
Unknown Or Other leads the component reports. Braking behavior appears in 7 complaint narratives. Electrical and battery issues appears in 5 complaint narratives. Transmission and shifting appears in 3 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11331647 · 2020-06-30 (June 30, 2020)
I WAS DRIVING CAR ON.THE HIGHWAY AND AS I PREPARED TO EXIT I BRAKED AND THE CAR HESITATED FOR 2 SECONDS BEFORE BRAKES ENGAGED. CAR HAS ALSO HAD HESITATION UPON ACCELERATION PERIODICALLY .THIS HAS BEEN AN ISSUE UPON JUST A FEW WEEKS OF OWNERSHIP. THE BREAK ISSUE WAS JUST RECENTLY 7-29-20 I HAVE TAKEN THE CAR TO THE LOCAL DEALERSHIP ABOUT THE DRIVING/ACCELARATION ISSUE TWICE WITHOUT RESOLUTION .
Owner-reported narrative. 3,950 miles reported. Look up ODI 11331647 at NHTSA ↗
Owner report 11361499 · 2020-09-28 (September 28, 2020)
NEW MODEL YEAR AND ALREADY 1.SAFETY AND EMISSION RECALL 4520F POTENTIAL FUEL LEAK 2.SAFETY RECALL 4420F FRONT BRAKE BOLTS MAY FALL OFF 3.DRIVE OFF LOT 1/20 AND HUGE AIR GAP WITH HEAT SYSTEM - DEFECTIVE WORKMANSHIP, 4.AC IN SUMMER NO GOOD - DEFECTIVE WORKMANSHIP THESE ISSUES BEGAN IN JAN 2020, DATE BELOW MAY NIGHT BE EXACT AND MORE TROUBLE HAS CONTINUED WITH A/C AND NOW FUEL TANK RECALL AND BRAKE RECALL. THIS IS NOT A SAFE VEHICLE ANYMORE. SENT LETTER TO MAZDA HEADQUARTERS WITH CC TO DEALERSHIP ON 8/21/20. TO DATE NO RESPONSE FROM MANUFACT…
Owner-reported narrative. Look up ODI 11361499 at NHTSA ↗
Owner report 11448132 · 2022-01-19 (January 19, 2022)
MY KEY FOB HAS FAILED 5 TIMES AND AS A RESUKLT IT DRAINS THE BATTERY THUS NEEDING TO GRET A JUMP START. THIS IS ALL IN A TWO YEAR PERIOD. I BELIEVE THERE IS AN ISSUE WITH MAZDA KEY FOBS
Owner-reported narrative. Look up ODI 11448132 at NHTSA ↗
Owner report 11506136 · 2023-02-07 (February 7, 2023)
I bought Mazda CX30 in 2020 and the battery already starts to fail. The engine light and the battery light are on suddenly when I was driving. Then, after a while, when I restart the engine and it starts to work again. However, it happens for two times within a week. I have sent the car to the Auto Zone and the nearby car auto repair company to check the car. However, they said they cannot detect anything as the engine light and the battery light are on again this time. It is so dangerous when the car suddenly stop in the middle of the road…
Owner-reported narrative. Look up ODI 11506136 at NHTSA ↗
Owner report 11661587 · 2025-05-17 (May 17, 2025)
I am reporting a repeated and potentially dangerous transmission failure in my 2020 Mazda CX30. At 6 months old, the original transmission failed. Mazda confirmed it was defective and replaced it with a refurbished unit with 10,000 miles on it. That replacement is now also failing, within 4 years of the first failure. This means the car has experienced two transmission failures before reaching 5 years of service. This raises concerns about: •The reliability of Mazda’s factory parts •The quality and safety of refurbished transmissions Mazda use…
Owner-reported narrative. Look up ODI 11661587 at NHTSA ↗
Owner report 11674592 · 2025-07-18 (July 18, 2025)
I OWN 2020 MAZDA CX 30 WITH 66000 MILES. THE TRANSMISSION WAS SHIFTING WITH JERKY MOTIONS. ON JULY 14, 2025 I BROUGHT THE CAR TO PALISADES MAZDA IN ROCKLAND COUNTY NEW YORK TO HAVE TRANSMISSION LOOKED AT AND TO CHANGE TRANSMISSION FLUID CHANGED. AFTER I DROPPED THE CAR OFF LATER THAT DAY I GOT A CALL THAT THE TRANSMISSION WAS CONDEMNED. I LOOKED ON THE INTERNET WITH SAME YEAR MAKE AND MODEL AND SEE THERE IS A BIG PROBLEM WITH THE TRANSMISSIONS ON THESE CARS AND MAZDA IS AWARE OF THE PROBLEM. TSB 05-002/20 IS A BULLETIN ABOUT TRANSMISSION FAILU…
Owner-reported narrative. Look up ODI 11674592 at NHTSA ↗
Owner report 11665901 · 2025-06-09 (June 9, 2025)
The initial sensor alarm indication was low oil pressure and within less then an hour engine malfunction was detected and the vehicle stopped functioning. This incident occurred on [XXX] in SanAntonio and thereafter it was towed to the Mazda Dealership for inspection upon request. I was driving from Dallas to SanAntonio with my [XXX] and [XXX] children when the vehicle started making strange noise and It the notification on dashboard stated I need to immediately stop the vehicle for safety. Middle of nowhere I had to find a nearest safe plac…
Owner-reported narrative. Look up ODI 11665901 at NHTSA ↗
Owner report 11341714 · 2020-07-27 (July 27, 2020)
MY EXPERIENCE AT SANSONE MAZDA WAS AN ABSOLUTELY NIGHTMARE. FIRST OFF THEY HAD ME IN A LEASE OF 10K DOWN FOR A PAYMENT OF 200$ A MONTH, SILLY ME. 7/1/2020 I BOUGHT A CX-30, ON THE FLOOR THE MAN HAD TO JUMP START THE CAR WHEN I ASKED WHY HE SAID IT 'WAS BECAUSE PEOPLE PLAY WITH THE SYSTEM'. THE FOLLOWING MORNING THE WINDSHIELD WIPER FLUID SYMBOL CAME UP. 9 DAYS LATER ON 7/10/2020 I WENT TO SIGN THE REST OF THE PAPERS AND GET THE FLUID SERVICED, THIS IS WHERE MY HEADACHE BEGAN. THE MORNING FOLLOWING A TROPICAL STORM MY VEHICLE WOULDN'T START, CAL…
Owner-reported narrative. 677 miles reported. Look up ODI 11341714 at NHTSA ↗
Owner report 11528975 · 2023-06-26 (June 26, 2023)
The contact owns a 2020 Mazda CX-30. The contact stated while driving out of the driveway, the steering wheel became firm. The contact stated that the power steering warning light was illuminated. The vehicle was towed to the dealer. The dealer diagnosed the vehicle and determined that the power steering unit needed to be replaced. The vehicle was not repaired. The manufacturer was contacted but no assistance was provided. The failure mileage was 66,000.
Owner-reported narrative. 66,000 miles reported. Look up ODI 11528975 at NHTSA ↗