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2021 Mazda CX-30 Problems and Recalls

Owners filed 101 complaints with NHTSA about the 2021 Mazda CX-30, most often about the engine (49% of complaints). It is the most complained-about CX-30 model year since 2000 and has 2 recalls.

Complaints101
Recalls2
Crashes reported10
Fires reported0
Injuries reported13

Most common 2021 Mazda CX-30 problems

  1. Engine

    49 complaints · 49%

    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…
    Owner report to NHTSA, 2021, at 2,100 miles
    The contact owns a 2021 Mazda CX-30. The contact stated that the low engine oil warning light was illuminated. The contact stated that the app used for alerting vehicle failure also notified the contact of the failure. The failure occurred twice. The dealer was contacted and informed her that it was a known issue…
    Owner report to NHTSA, 2022, at 3,100 miles
  2. Electrical

    14 complaints · 14%

    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.…
    Owner report to NHTSA, 2021, at 3,500 miles
    The contact owns a 2021 Mazda CX-30. The contact stated while driving 65 MPH, the vehicle stalled. The messages "engine malfunction" and "computer system issues" were displayed. The contact was able to pull over to the side of the road. Another driver assisted the contact in jumpstarting the vehicle. The contact was…
    Owner report to NHTSA, 2024, at 30,590 miles
  3. Driver assistance

    12 complaints · 12%

    Parts named most often: automatic emergency braking, warnings, adaptive cruise control, dynamic brake support/brake assist.

    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…
    Owner report to NHTSA, 2021, at 5,078 miles
    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.…
    Owner report to NHTSA, 2021, at 3,500 miles
  4. Visibility and wipers

    11 complaints · 11%

    Parts named most often: defroster/defogger/hvac system, rearview mirrors/devices.

    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…
    Owner report to NHTSA, 2025, at 22,000 miles
  5. Other or unspecified

    10 complaints · 10%

  6. Speed control

    8 complaints · 8%

    Parts named most often: accelerator pedal.

    The contact owns a 2021 Mazda CX-30. The contact stated while driving at an unknown speed, the vehicle accelerated independently and hit a brick pillar. The contact stated no warning light was illuminated. The air bags did not deploy. The contact sustained injuries on her neck, back, and also had headaches. The…
    Owner report to NHTSA, 2022, at 1,000 miles
    The contact owns a 2021 Mazda CX-30. The contact stated that while driving at an undisclosed speed, the accelerator pedal was slightly depressed; however, the vehicle speed increased significantly independently. The contact stated that the failure occurred as the contact arrived at the contact's residence and was…
    Owner report to NHTSA, 2025, at 47,000 miles
  7. Transmission

    8 complaints · 8%

  8. Brakes

    8 complaints · 8%

    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…
    Owner report to NHTSA, 2025, at 22,000 miles

Complaints are owner reports to NHTSA, not verified defects. One complaint can name several components, so shares add up to more than 100%.

2021 Mazda CX-30 recalls

  1. Wheels and tires: valve

    NHTSA 21V101000 · February 22, 2021 · 599 vehicles

    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.

    Full defect summary

    Mazda north american operations (mazda) is recalling certain 2021 mazda3 and cx-30 vehicles. Air may suddenly leak from the tire air valve.

  2. Body and structure: hatchback/liftgate

    NHTSA 21V086000 · February 18, 2021 · 13,857 vehicles

    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.

    Full defect summary

    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.

Recall repairs are free at any franchised dealer. Enter your VIN at nhtsa.gov/recalls to see which recalls are still open on your car.

Questions about the 2021 Mazda CX-30

What are the most common problems with the 2021 Mazda CX-30?
By NHTSA owner complaints: engine (49 complaints); electrical (14 complaints); driver assistance (12 complaints).
How many recalls does the 2021 Mazda CX-30 have?
2 recalls listed by NHTSA, the latest from February 22, 2021 (wheels and tires). Check your VIN at nhtsa.gov/recalls to see which ones are still open on your car.
Is the 2021 a bad year for the Mazda CX-30?
It is the most complained-about CX-30 model year since 2000, with 101 complaints. Complaint counts are not adjusted for how many cars were sold, so popular years collect more of them, and the newest years have had less time to.

Other Mazda CX-30 years

Mazda CX-30 problems by year