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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 · Jun 15, 2022
Engine

Low engine oil light came on at 8990 miles. Bought vehicle brand new. Has occurred before with this same vehicle. Excessive oil consumption is a known issue with this make/model

NHTSA ODI #11469501

Mileage unknown · Jun 15, 2022
Engine

Low engine oil light came on at 4600 miles. Brand new vehicle. Excessive consumption of oil known issue with this make/model

NHTSA ODI #11469500

Mileage unknown · Jun 12, 2022
Electrical SystemPower TrainVehicle Speed Control

Randomly accelerated on its own; burns oil- low oil levels twice in 6 months; randomly says cruise control is available under 25 mph when car is traveling at highway speeds; the unlock and lock functions randomly fail; lift gate randomly opens; alarm system randomly goes off; TERRIBLE fuel economy (18-21 mpg)

NHTSA ODI #11468850

Mileage unknown · Jun 4, 2022
Engine

Low engine oil pressure light came on forcing me to stop driving the vehicle. Upon investigation, engine oil level was a full quart low of oil, despite no leaks and only having 8000 miles.

NHTSA ODI #11467570

Mileage unknown · May 25, 2022
Engine

I have the 2.5 liter turbocharged engine in my CX-30. It currently has approximately 18,000 miles after a little over a year of ownership. So far I have had to put in 3 quarts of oil in that time. The engine/low oil indicator comes on about every 4,000 miles. When I check the oil, it shows that it is down a quart. I have taken …

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I have the 2.5 liter turbocharged engine in my CX-30. It currently has approximately 18,000 miles after a little over a year of ownership. So far I have had to put in 3 quarts of oil in that time. The engine/low oil indicator comes on about every 4,000 miles. When I check the oil, it shows that it is down a quart. I have taken it in for regular service (oil and filter, tire rotation) twice now, and have brought this to the attention of the service advisor who tells me that this is normal for turbo engines. I disagree with this assessment. I will bring it up again later this week when it goes in for its third service. No new car should consume oil at the rate this one does. I have also observed blue smoke from the exhaust on start-up. I owned another turbo Mazda model a few years ago that did not do this. I have found what appears to be a technical service bulletin from Mazda regarding all turbocharged 2021 models built prior to September 2021. (TSB-01-012-21) My greatest concern is that this will only become worse and end up causing major damage to the engine and/or make the car unsafe to drive.

NHTSA ODI #11466068

Mileage unknown · May 16, 2022
Engine

Low engine oil after 4630 miles!

NHTSA ODI #11464803

3,100 miles · Apr 4, 2022
Engine

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 however, there …

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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 however, there was no recall. The contact had not taken the vehicle to the dealer. The vehicle had not been diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage 3,100.

NHTSA ODI #11459502

Mileage unknown · Mar 23, 2022
Engine

While driving, Low Engine Oil light illuminated. Vehicle has 9968 miles at time of incident and had one oil change at 5873 miles. So in the span of 4095 miles, engine had burned enough oil that none was showing on dipstick at time of incident. Vehicle was taken to dealership where it was confirmed that there were no leaks and th…

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While driving, Low Engine Oil light illuminated. Vehicle has 9968 miles at time of incident and had one oil change at 5873 miles. So in the span of 4095 miles, engine had burned enough oil that none was showing on dipstick at time of incident. Vehicle was taken to dealership where it was confirmed that there were no leaks and the engine was consuming oil at a rapid rate. Mazda has issued a bulletin to dealerships concerning this issue, so the company is aware a problem exists with this engine. Had the oil level decreased to a low enough level, the engine could have feasibly failed, which could have resulted in a dangerous situation if it happened on the highway or in heavy traffic. Mazda currently has no fix and encourages that oil be added when necessary. Given the unpredictable frequency of the oil consumption, this does not feel like a safe solution, putting the onus entirely on the owner.

NHTSA ODI #11458029

1,000 miles · Feb 23, 2022
Vehicle Speed ControlCrashInjury

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 contact did seek …

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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 contact did seek medical attention at the emergency room. A police report was filed. The vehicle was not drivable. The vehicle was towed. The contact called the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 1,000.

NHTSA ODI #11453651

Mileage unknown · Feb 9, 2022
Engine

At about 3,605 miles, I received a low engine oil warning. The car is only 4 months old. When i took the car to the dealer, apparently there is a TSB that was issued in October 2021 about the problem. I bought the car in November was not advised of this issue. At this time, it appears at this time Mazda is unable to determine th…

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At about 3,605 miles, I received a low engine oil warning. The car is only 4 months old. When i took the car to the dealer, apparently there is a TSB that was issued in October 2021 about the problem. I bought the car in November was not advised of this issue. At this time, it appears at this time Mazda is unable to determine the root cause. It appears that I am to take the vehicle to the dealer every time I have this experience. I am worried about the potential impact and the lifespan of the engine.

NHTSA ODI #11451279

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.