2024 Mazda CX-30 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2024 Mazda CX-30, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Driver assistance1028.6%
- Airbags720.0%
- Brakes514.3%
- Electrical514.3%
- Interior & seats25.7%
- Body & structure25.7%
- Visibility12.9%
- Fuel system12.9%
- Exterior lighting12.9%
- Powertrain (other)12.9%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
What component or system failed or malfunctioned, and is it available for inspection upon request? The automatic braking turned on while I was accelerating. My car is available for inspection. How was your safety or the safety of others put at risk? I could have been rear ended because my car automatically braked at an unpredictable time in rush hour traffic with someone very close behind me. Has the problem been reproduced or confirmed by a dealer or independent service center? It has happened to me maybe 4 times before but the dealer hasn't been able to reproduce it. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? It first happened soon after I bought my car new.
I was sold this 2024 Mazda cx30 from Ken ganley kia located in mentor Ohio (44060) the vehicle started showing major electrical issues. when they occur I have no control of the functions of anything in the cabin (infotainment, heat/air, braking system,) just to name a few. My wife and I were assured we were purchasing a good safe and reliable used vehicle. I feel this vehicle is extremely unsafe and unpredictable and ken ganley kia of mentor refuse to take this unsafe vehicle back or even pay for the repairs. I am utterly disappointed such a big name in the auto industry could turn there back on a customer not only that let a young family pull off in a unpredictable electrical nightmare of a vehicle and refuse to stand by it.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
The contact rented a 2024 Mazda CX-30. The contact stated that while driving at highway speeds, an "i-ACTIVSENSE Partially Disabled Front Radar Malfunction" warning message appeared on the instrument panel. The contact attempted to exit the highway; however, the vehicle failed to stop upon depression of the brake pedal. The contact continued to pump the brakes and even engaged the emergency brakes, but the vehicle failed to stop. Due to the failure, the contact crashed into the vehicle in front of her as the "Vehicle System Malfunction, Have the Vehicle Inspected" warning message appeared on the instrument panel. The air bags did not deploy upon impact. The contact later sought medical attention for pain in her back; the other driver sustained injuries; however, the injuries are unknown as she did not seek medical attention from the paramedics that arrived at the scene. A police report was filed. The vehicle was towed from the scene to an independent mechanic, where it remained in their possession. Neither the dealer nor the manufacturer had yet been notified of the failure. The vehicle was not repaired. The failure mileage was 38.377.
While driving normally at highway speed on I-880 South, the braking system failed to decelerate the vehicle. When the brake pedal was pressed firmly, there was no normal slowing—only a sliding sensation, as if the wheels locked and the car moved forward on ice. This led to a collision with a stopped vehicle ahead. The following day, the Mazda App displayed a red alert message: “Brake system malfunction. Braking effectiveness may be decreased.” The vehicle’s airbags deployed very forcefully, causing bruising to both driver and passenger, even though the impact was not severe. Three days before the incident, the vehicle had a scheduled maintenance and recall service at a Mazda dealer, including a brake inspection and air-bag recall repair. The vehicle was declared a total loss by the insurance company and is currently stored at Copart Hayward, CA. The problem has not been inspected by Mazda yet, but a formal safety review is requested. The issue posed serious safety risks due to total loss of braking control and unexpected air-bag deployment.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
When I first got my Mazda CX30 2024 New lease ,my Breaks were very weak & didn't perform as new. Only 2 years later w 9K miles on it, Mazda states my breaks need to be replaced. My rotors need to be shave. A whole list of services on a car thats 2 years old. My concern is, break service at 9K confirm my car wasn't new and that Mazda put my Safety at risk w Old Breaks... Mazda is hiding somerhing about my breaks playing games...in the mean time I feel my safety is in jeopardy with defective breaks that maza should fully cover under warranty. Which they won't honor. Putting my safety in jeopardy
What component or system failed or malfunctioned, and is it available for inspection upon request? The automatic braking turned on while I was accelerating. My car is available for inspection. How was your safety or the safety of others put at risk? I could have been rear ended because my car automatically braked at an unpredictable time in rush hour traffic with someone very close behind me. Has the problem been reproduced or confirmed by a dealer or independent service center? It has happened to me maybe 4 times before but the dealer hasn't been able to reproduce it. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? It first happened soon after I bought my car new.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
When I first got my Mazda CX30 2024 New lease ,my Breaks were very weak & didn't perform as new. Only 2 years later w 9K miles on it, Mazda states my breaks need to be replaced. My rotors need to be shave. A whole list of services on a car thats 2 years old. My concern is, break service at 9K confirm my car wasn't new and that Mazda put my Safety at risk w Old Breaks... Mazda is hiding somerhing about my breaks playing games...in the mean time I feel my safety is in jeopardy with defective breaks that maza should fully cover under warranty. Which they won't honor. Putting my safety in jeopardy
The vehicle intermittently fails to start when pressing the push-button start system. The start/stop button becomes unresponsive despite normal conditions (key present, brake engaged, no warning indicators preventing ignition). This has now occurred twice within two years of ownership, indicating a recurring issue rather than an isolated incident. On the most recent occurrence, the vehicle was completely unable to start and required towing. The tow truck operator reported that he had towed four vehicles of the same make/model for the exact same issue within one week, suggesting a broader pattern affecting multiple vehicles. Safety Concern: This presents a significant safety risk, including: •Inability to start the vehicle in unsafe or emergency situations •Risk of being stranded in dangerous environments (e.g., roadside, extreme weather, unsafe areas) •Potential failure of the ignition system, which raises concerns about reliability of vehicle operation overall A malfunction in the start/stop system directly impacts the vehicle’s basic functionality and creates an unpredictable and potentially hazardous situation for drivers. Additional Notes: Given the repeated occurrence and reports of similar failures in other identical vehicles, this issue may represent a systemic defect that warrants investigation.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
I have a brand new Mazda CX-30 with less than 10k miles. I was not made aware of the seat material being highly flamible. Luckily I nor my kids were in the car when the seat caught fire due to a magnifying effect. Magnifying Effect (Sunlight): If a clear glass or plastic object (like a water bottle, eyeglasses, or even a certain type of air freshener) was left on the seat in direct sunlight, it could have acted as a lens, focusing the sun's rays onto a small area of the seat material. Over time, this concentrated heat could become intense enough to ignite the fabric, especially if it's dry and flammable. This is more likely to happen on a hot, sunny day. I brought this up with the dealership and their reply was to contact Mazda! YOU are Mazda!
The air bag warning system shows "passenger air-bags not engaged" If involved in any accident that requires passenger air-bags to inflate, they will not. Causing serious to deadly consequences. January 28 2025 the Mazda service department had our vehicle to recalibrating the system. Checking the problem after the service still show the same problem. Another Mazda CX-30 was brought over, and the same problem existed. Also a Mazda CX-5 was tested and no problem was found. This was the second time this problem has been returned to the Mazda Dealership. This problem has existed since purchasing this vehicle.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
[XXX] fuel door assembly has come loose from body. It looks like the clips that hold it in place have become worn or loose by the weight of the gas nozzle or by the fact that the gas door will not close correctly and car wash machine has made it looser and it appears to not shut all the way, and the body colored panel has fallen off as a result and when you pump gas, the assembly moves may be possibly causing it to leak gasoline if the seal or gasket becomes dislodged because of the loose clips that hold assembly to the body panel. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The sunroof exploded. Was no external debris or damage. Glass pushed outwards. 47 degrees outside. Very sudden and scary.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
I was driving down the Highway and the sun roof just exploded send shards of glass everywhere and nothing had hit it or anything. It just exploded. When I got to the dealer the person ahead of me had the exact same thing and we compared pictures. It was scary, dangerous and really loud when it happened.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
[XXX] fuel door assembly has come loose from body. It looks like the clips that hold it in place have become worn or loose by the weight of the gas nozzle or by the fact that the gas door will not close correctly and car wash machine has made it looser and it appears to not shut all the way, and the body colored panel has fallen off as a result and when you pump gas, the assembly moves may be possibly causing it to leak gasoline if the seal or gasket becomes dislodged because of the loose clips that hold assembly to the body panel. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
Headlight module, ballast, bad noises from passenger side, under hood right next to passenger headlight.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
I had both the left front and right front CV axles fail. My car only has 11.5k miles on. I first heard the clunking noise at 11k miles, went right to the dealer and had them watch me recreate the noise and they determined the axles needed to be replaced. This is incredible dangerous as the CV axle could have been completely disconnected from the wheel assembly leaving my car useless and uncontrollable.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .