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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.

About this comparison →

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

What owners actually said

100 reports
Mileage unknown · Jan 23, 2024
Electrical SystemEngine

I'm getting a critical engine error with the car saying I have low oil pressure. The dealership has looked and said that they can't fix it. They said I can drive it with the warning up

NHTSA ODI #11567266

36,500 miles · Jan 19, 2024
Engine

The contact owns a 2021 Mazda CX-30. The contact stated that while the contact's wife was driving at an undisclosed speed, several unknown warning lights illuminated. The contact stated that the vehicle decelerated to 20 MPH. The contact's wife drove the vehicle to a safe location and parked the vehicle. The vehicle was towed to…

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The contact owns a 2021 Mazda CX-30. The contact stated that while the contact's wife was driving at an undisclosed speed, several unknown warning lights illuminated. The contact stated that the vehicle decelerated to 20 MPH. The contact's wife drove the vehicle to a safe location and parked the vehicle. The vehicle was towed to an independent mechanic, but the mechanic was unable to duplicate the failure. The contact stated that the independent mechanic reset the codes and the vehicle operated as intended; however, the failure recurred. The vehicle was taken to the dealer and the contact was informed that the battery needed to be replaced. The battery was replaced but the failure reoccurred. The vehicle was taken back to the dealer where it was diagnosed with a failed MAP sensor. The contact was informed that the MAP sensor needed to be replaced. The vehicle remained with the dealer for nineteen days and the MAP sensor was replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the dealer where it was diagnosed with needing a software update. The vehicle was at the dealer for another 34 days and the software update was completed and the PCM was replaced. The vehicle was repaired but the failure reoccurred. The contact stated that the failure had been persistent. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 36,500.

NHTSA ODI #11566456

Mileage unknown · Nov 22, 2023
Engine

Engine is burning an excessive amount of oil. After numerous times to the dealership Mazda has finally okay the "fix" to be done to the car. What this "fix" is I do not know.

NHTSA ODI #11556421

Mileage unknown · Nov 18, 2023
Forward Collision AvoidanceService BrakesCrash

The accident occurred on the afternoon of Tuesday, November 14, which I reported to Enterprise, City of Falls Church, on the morning of November 15. Additionally, I provided to Enterprise email links to the many reports about breaking problems about the CX30 2021, 2022, and 2023 MAZA models and the reasons for their recall fo…

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The accident occurred on the afternoon of Tuesday, November 14, which I reported to Enterprise, City of Falls Church, on the morning of November 15. Additionally, I provided to Enterprise email links to the many reports about breaking problems about the CX30 2021, 2022, and 2023 MAZA models and the reasons for their recall for repair. Here are the details about what happened. As I was trying to put the car in reverse from a standing position, the car, instead, lurched forward at great speed headed toward the Sun Trust bank. I had to use super-human strength to the brake pedal on the car to force it into a standing position. The damage to the car is due to scrapping some bark off one of the trees that separates the Sun Trust Bank property from the CapitalOne bank property where my car was parked.

NHTSA ODI #11555773

Mileage unknown · Oct 12, 2023
Visibility/wiper

I have noticed the windshield is distorted and from reports all over the Internet that seems to be an issue with 20-22 mazda cx-30’s and I don’t think Mazda is going to replace it. It causes me to get fatigued, and a little dizzy at times during long distance driving.

NHTSA ODI #11549655

Mileage unknown · Oct 2, 2023
Service Brakes

Rear brakes became extremely worn very quickly. Had to replace rear brakes in September of 2023. Purchased the car with 0 miles in February of 2022.

NHTSA ODI #11547657

Mileage unknown · Oct 2, 2023
Service Brakes

Rear brakes became extremely worn very quickly. Had to replace in September of 2023 and purchased the car with 0 miles in February of 2022.

NHTSA ODI #11547656

Mileage unknown · Sep 12, 2023
Unknown Or Other

Low oil indicator came on after only1,800 miles since an oil change, I added a quart of oil and then the light came on again after only 1,000 miles. Asked the service department at the dealership and they said there was an issue with the oil and the turbo system and that it would be a three day repair. I was advised in the mea…

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Low oil indicator came on after only1,800 miles since an oil change, I added a quart of oil and then the light came on again after only 1,000 miles. Asked the service department at the dealership and they said there was an issue with the oil and the turbo system and that it would be a three day repair. I was advised in the meantime to take a couple of extra quarts of oil if I was going to doing any traveling this summer.

NHTSA ODI #11544093

Mileage unknown · Sep 7, 2023
Forward Collision AvoidanceUnknown Or OtherVehicle Speed Control

Adaptive cruise control on at 70mph, speeding car pulls into my lane with no gap (completely cut me off), hard brake by computer, I did not tap the brake to take it off of cruise, car that had cut me off zigs into another lane while adaptive cruise control has car at about 40 mph due to hard brake. As car in front pulls out of…

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Adaptive cruise control on at 70mph, speeding car pulls into my lane with no gap (completely cut me off), hard brake by computer, I did not tap the brake to take it off of cruise, car that had cut me off zigs into another lane while adaptive cruise control has car at about 40 mph due to hard brake. As car in front pulls out of the lane, adaptive cruise control guns the engine to 3500-4000 rpm since there was no obstruction in front of it anymore and it wanted to go back to the 70 mph preset. During this incident the Engine Malfunction light comes on, warning to get car serviced. Upon taking it in for service they found that the thermostat needed to be replaced? This seems unlikely. Car has only 15k miles on it. I have another model Mazda and the adaptive cruise control has gunned it in a similar manner, taking the car well past 3000 rpm. Mazda needs to reprogram.

NHTSA ODI #11543303

Mileage unknown · Sep 6, 2023
Engine

Low engine oil level since I bought it in September 2021. I’ve had it at the dealer three times and they’ve said there are no codes on the car but they are on my Mazda app. They want me to drive it over a hour away with low oil to prove to them that the engine oil is low. I did this, shut the car off, the light went off and when…

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Low engine oil level since I bought it in September 2021. I’ve had it at the dealer three times and they’ve said there are no codes on the car but they are on my Mazda app. They want me to drive it over a hour away with low oil to prove to them that the engine oil is low. I did this, shut the car off, the light went off and when the engine oil level was checked it read one quart low.

NHTSA ODI #11543012

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.