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2021 Mazda CX-30

Owner reports · Recalls · Investigations

More warning signs than most CX-30 years

Owner complaints for the 2021 Mazda CX-30 are substantially higher than the model-year median of 31.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 13 of 100 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Engine. Review the 49 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 13 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Forward Collision Avoidance. Review the 12 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

10 crash reports0 fire reports7 injury reports

Service Brakes, Hydraulic complaints

2 reports
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22,000 miles · Feb 10, 2025
Service Brakes, HydraulicVisibility

The contact owns a 2021 Mazda CX-30. The contact stated that while operating the vehicle, the interior rear mirror loosened and eventually fell from the roof of the vehicle. The cause of the failure was not yet determined, and the vehicle was not yet repaired. Additionally, while driving at an undisclosed speed, the message "Cri…

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The contact owns a 2021 Mazda CX-30. The contact stated that while operating the vehicle, the interior rear mirror loosened and eventually fell from the roof of the vehicle. The cause of the failure was not yet determined, and the vehicle was not yet repaired. Additionally, while driving at an undisclosed speed, the message "Critical Brake System Malfunction" was displayed. The vehicle was taken to the local mechanic; however, the cause of the failure was not yet determined. The local dealer and manufacturer were notified of the failure, but no assistance was offered. The failure mileage was 22,000.

NHTSA ODI #11641757

31,000 miles · Jan 14, 2025
Service Brakes, HydraulicVehicle Speed ControlCrashInjury

The contact owned 2021 Mazda CX-30. The contact stated while attempting to park the vehicle in the parking garage at her workplace, the contact reversed and then straightened the steering wheel; however, after shifting to drive and attempting to drive 6-10 feet forward into the parking space, the vehicle unintendedly accelerated…

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The contact owned 2021 Mazda CX-30. The contact stated while attempting to park the vehicle in the parking garage at her workplace, the contact reversed and then straightened the steering wheel; however, after shifting to drive and attempting to drive 6-10 feet forward into the parking space, the vehicle unintendedly accelerated and crashed into a pillar before coming to a stop. The contact stated that the engine had revved up, and the vehicle made an abnormally loud sound before the vehicle unintendedly accelerated. The contact stated that the brake pedal was depressed but the vehicle failed to respond, and the vehicle failed to stop as needed. There was no warning light illuminated. The contact stated that the air bags deployed as intended; however, a warning light indicating an air bag malfunction illuminated afterwards. The contact stated that the front driver's side and knee air bags had deployed as designed. The contact sustained pain and bruises on the left side of the chest, on the upper part of the left breast, on the left leg, and on the right wrist and right arm. The vehicle automatically called 9-1-1 for Emergency Assistance, but the contact declined to receive medical assistance. The contact was able to walk away from the scene. No Police report was filed. The contact was unsure whether there was any property damage. The vehicle was towed from the scene and totaled by the Insurance Company. The contact stated that the failure had occurred once before while driving at approximately 60-65 MPH, and the vehicle unintendedly accelerated with an abnormal sound coming from the vehicle, but the contact was able to depress the brake pedal and regained control of the vehicle. The dealer and the manufacturer were not yet notified of the failure. The failure mileage was approximately 31,000.

NHTSA ODI #11635826

Official recalls

2

21V101000 · Tires:valve

Feb 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 & remedy

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.

21V086000 · Structure:body:hatchback/liftgate

Feb 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 & remedy

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.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.