2021 Mazda CX-30: complaints, problems and recalls
Explore the records behind recurring owner reports.
Key facts
100 owner complaints analyzed
2 distinct recall campaigns
5,078 mi median reported failure mileage
Scope: 2021 model year. Data snapshot: . 13 complaints include usable failure mileage.
Most common problems
Engine is the most frequently named component, appearing in 49 of 100 complaints (49.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 15 | 15.0% |
| Electrical and battery issues | 11 | 11.0% |
| Transmission and shifting | 4 | 4.0% |
| Engine operation | 2 | 2.0% |
| Steering behavior | 2 | 2.0% |
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 |
|---|---|
| Engine | 49 |
| Electrical System | 13 |
| Unknown Or Other | 10 |
| Visibility/Wiper | 9 |
| Power Train | 8 |
| Vehicle Speed Control | 7 |
| Service Brakes | 6 |
| Forward Collision Avoidance: Automatic Emergency Braking | 5 |
Engine: 49; Electrical System: 13; Unknown Or Other: 10; Visibility/Wiper: 9; Power Train: 8; Vehicle Speed Control: 7; Service Brakes: 6; Forward Collision Avoidance: Automatic Emergency Braking: 5
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 9 |
| 25,000 to 49,999 | 4 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 9; 25,000 to 49,999: 4; 50,000 to 74,999: 0; 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 (9). 87 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 |
|---|---|
| 2021 | 8 |
| 2022 | 37 |
| 2023 | 23 |
| 2024 | 17 |
| 2025 | 7 |
| 2026 | 8 |
2021: 8; 2022: 37; 2023: 23; 2024: 17; 2025: 7; 2026: 8
Pattern summary
Engine leads the component reports. Braking behavior appears in 15 complaint narratives. Electrical and battery issues appears in 11 complaint narratives. Transmission and shifting appears in 4 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.
Examples from the source records
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11415780 · 2021-05-10 (May 10, 2021)
TL* THE CONTACT OWNS A 2021 MAZDA CX-30. THE CONTACT STATED WHILE DRIVING 3 MPH, THE VEHICLE LOSS MOTIVE POWER. THE CONTACT STATED THAT THE LOW VOLTAGE 12-V CHARGE WARNING LIGHT WAS ILLUMINATED. THE CONTACT STATED A BYSTANDER ASSISTED TO JUMP START THE VEHICLE. THE CONTACT CONTINUED DRIVING TO HER DESTINATION. THE VEHICLE WAS TAKEN TO COOK CHRYSLER DODGE RAM (1136 S PHILADELPHIA BLVD, ABERDEEN, MD 21001, [phone removed]) HOWEVER, THE MECHANIC WAS UNABLE TO DUPLICATE THE FAILURE. THE VEHICLE WAS NOT YET REPAIRED. THE CONTACT STATED SHE HAD EXPER…
Owner-reported narrative. 50 miles reported. Look up ODI 11415780 at NHTSA ↗
Owner report 11416800 · 2021-05-16 (May 16, 2021)
AFTER TURNING LEFT AT A SIGNALED INTERSECTION ONTO A HIGHWAY THE AUTOMATIC BRAKING ENGAGED AND THE CAR SKIDDED TO A STOP IN THE MIDDLE OF THE LANE. LUCKILY NOBODY WAS BEHIND US. THERE WAS A CAR ABOUT 4 CAR LENGTHS AHEAD THAT WAS GOING THE SAME SPEED AND WAS NOT STOPPED. I PULLED OVER AND CHECKED THE FRONT SENSOR AND NOTICED A COUPLE BLACK FLIES ON IT AND BRUSHED THEM OFF.
Owner-reported narrative. 5,078 miles reported. Look up ODI 11416800 at NHTSA ↗
Owner report 11418296 · 2021-05-24 (May 24, 2021)
Sudden, enexpected emergency braking when there was no vehicle or any other obstruction in front of me. Luckily, the distance between me and the car behind me was great enough to prevent me from being rear ended.
Owner-reported narrative. Look up ODI 11418296 at NHTSA ↗
Owner report 11423399 · 2021-07-04 (July 4, 2021)
The brand new vehicle was sold to me on 2/23/21 with an open safety recall. This recall was finally addressed on 5/21/21. At no time did Mazda north American operations formally notifying me of the safety record. 1) how could this happen? 2) has this shortcoming been remedied? 3) Will I receive formal notifications of future safety recalls on a timely basis?
Owner-reported narrative. Look up ODI 11423399 at NHTSA ↗
Owner report 11437910 · 2021-10-23 (October 23, 2021)
Manufacturing defect in the windshield glass: distorted/warped windshield glass causing waves/ripples. Result: impaired visibility when operating vehicle and rapid eye fatigue. Google search (forums) indicates that this is a well known issue on several Mazda models. The issue presumably existed at factory. I noticed upon purchase as CPO at 6k miles. Available for inspection if needed.
Owner-reported narrative. Look up ODI 11437910 at NHTSA ↗
Owner report 11438463 · 2021-10-28 (October 28, 2021)
The contact leased a 2021 Mazda CX-30. The contact stated that the vehicle had failed to start up after multiple attempts with several unknown warning lights illuminated on the instrument panel. The contact stated that an unauthorized independent tow company towed the vehicle to a dealer two hours away from her home and that the vehicle was stolen from the dealer's lot. A police report was filed. The contact then stated that the vehicle was recovered and returned to the same dealer. The battery was replaced, and the vehicle was towed to an auto…
Owner-reported narrative. 2,100 miles reported. Look up ODI 11438463 at NHTSA ↗
Owner report 11439027 · 2021-11-02 (November 2, 2021)
The contact owns a 2021 Mazda CX-30. The contact stated that while at a stop sign, the vehicle was bouncing up and down. The contact mentioned that the failure recurred multiple times and only while the vehicle was stopped. The dealer was contacted but was unable to provide a diagnosis. The vehicle was not repaired. The manufacturer was not notified of the failure. In addition, while driving at approximately 8 mph, the brake assist warning light illuminated, and the brake assist applied independently while there was nothing in front of the vehi…
Owner-reported narrative. 3,500 miles reported. Look up ODI 11439027 at NHTSA ↗
Owner report 11444904 · 2021-12-24 (December 24, 2021)
Low engine oil light displayed at 7,030 miles. No leaks detected. Engine consuming oil burning in combustion chamber. Possible engine damage or failure if oil was not quickly refilled.
Owner-reported narrative. Look up ODI 11444904 at NHTSA ↗
Recall history
2 distinct campaigns affect this selection. Announcement dates below are different from vehicle model years. A campaign may cover multiple years.
21V086000 · Structure:Body:Hatchback/Liftgate
Reported: 2021-02-18 (February 18, 2021)
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.
Consequence: 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.
NHTSA campaign record ↗21V101000 · Tires:Valve
Reported: 2021-02-22 (February 22, 2021)
Mazda North American Operations (Mazda) is recalling certain 2021 Mazda3 and CX-30 vehicles. Air may suddenly leak from the tire air valve.
Consequence: 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.
NHTSA campaign record ↗