2024 Mazda CX-30

31 complaints on file, page 1 of 2.

1. Filed Sep 9, 2026Failure May 4, 2026Lutz, FLPower train

   The vehicle is experiencing premature transmission failure, since about 9,000 miles. Mazda has been dropping the ball at replacing it under warranty and we found out there are 3 other CX-30s that I know of with similar issues. I believe Mazda has a faulty transmission in these cars based off my findings and other complaints.

   NHTSA complaint 11762963
2. Filed Aug 31, 2026Failure Jul 22, 2026Warrenville, ILAutomatic emergency braking, Service brakes

   What is happening with my car are the exact symptoms of the known Mazda Recall 6824H - where the Smart Brake Support suddenly engages for no reason and when it does not need to - which has almost caused me to be rear-ended a few times. This has happened at least 7-8 times since I have owned the vehicle. Apparently, my VIN does not fall under the cars that Mazda reports for the Recall, but nonetheless, my car is still malfunctioning as the Recall describes, which is a safety issue for me. The Recall also states: "Due to an improper program setting, affected FSC (cameras) were not updated from production mode to normal mode. As a result, all three systems described (HBC, SBS, LAS) will not work as intended." My cameras are definitely not working as they should. I have had it in for service, and the technicians have not done anything at all. The Recall should definitely be expanded to owners experiencing these issues. As I have stated above, this incident has occurred at least 7-8 times, so I'll just enter in the most recent time that it happened in the Additional Details below since I cannot enter all of them. Thank you.

   NHTSA complaint 11760963
3. Filed Aug 14, 2026Failure Jul 28, 2026Tempe, AZElectrical system

   Reporting Product Defect in Mazda Vehicles I am writing to bring to your attention a recurring design flaw affecting current Mazda vehicles, including models such as CX30, MX30, and potentially the Mazda3 series. Following heavy rain or high humidity conditions, there is a consistent issue with the tire pressure sensor alarming and the smart key being unable to unlock the car doors. I have checked my key fob battery, RF function, car battery - none of these are the root cause. Despite consulting local dealerships and various Mazda forums, no one seems to have a definitive solution to this problem. Therefore, I am reaching out to report the existence of this product defect. This issue appears to be more prevalent during summer in Arizona - after the thunderstorms, this issue came up every time. Even with the heat here, it takes from several hours to 2 days for the affected part to dry out and function again.

   NHTSA complaint 11757051
4. Filed Aug 3, 2026Failure Jul 8, 2026Brooklyn, NYElectrical system, Service brakes, Unknown or other

   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

   NHTSA complaint 11754347
5. Filed Jun 16, 2026Failure Jun 16, 2026West Grove, PAAutomatic emergency braking, Service brakes

   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.

   NHTSA complaint 11744391
6. Filed May 16, 2026Failure Aug 21, 2025Greer, SCFuel/propulsion system, Body

   [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)

   NHTSA complaint 11738294
7. Filed Apr 14, 2026Failure Apr 13, 2026amherst, NYElectrical system

   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.

   NHTSA complaint 11731038
8. Filed Apr 6, 2026Failure Apr 6, 2026The Villages, FLVisibility/wiper

   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.

   NHTSA complaint 11729368
9. Filed Mar 5, 2026Failure Feb 18, 2026lyndhurst, OHElectrical system, Service brakes, Vehicle speed control

   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.

   NHTSA complaint 11722344
10. Filed Feb 7, 2026Failure Nov 12, 2025Glen Rock, PAAutomatic emergency braking, Warnings, Assist

    Cruise control and lane keeping system engaged. Vehicle will occasionally aggressively apply brakes, when nothing visible is in front of the vehicle. This has nearly cause our car to be rear ended on a number of occasions. I suspect the system mistakenly interprets a building or vehicle shadow as a physical object. This response has also occurred when vehicle in front (cruise control distance at slower speed) turns right. Again, nearly causing vehicle behind to be rear ended.

    NHTSA complaint 11716422
11. Filed Feb 4, 2026Failure Jan 1, 2026York, PAPower train

    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.

    NHTSA complaint 11715712
12. Filed Dec 5, 2025Failure Nov 30, 202538,377 milesKey West, FLAir bags, Service brakes, HydraulicCrash1 injured

    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.

    NHTSA complaint 11703230
13. Filed Nov 17, 2025Failure Oct 15, 2025Spotsylvania, VAUnknown or other

    Component/System: Automatic transmission (requires full replacement). The vehicle is currently located at Safford Mazda of Fredericksburg, 10653 Patriot Hwy, Fredericksburg, VA, 22408, and is available for inspection upon request. Safety risk: The transmission developed a loud whining and grinding noise while driving, indicating imminent risk of sudden loss of motive power or seizure. This creates a severe crash hazard, especially on highways or during acceleration/merging. Sudden loss of propulsion without warning can leave the driver unable to accelerate, maintain speed, or move out of harm’s way. The problem has been reproduced and confirmed by Safford Mazda (authorized Mazda dealer). On October 16, 2025, they diagnosed the vehicle as requiring a complete transmission replacement (Repair Order/Multi-Point Inspection Video is available). The vehicle has not yet been inspected by the manufacturer, police, or insurance representatives, but remains at the dealership awaiting parts. Starting approximately in late August, a transmission whine started zero warning lights or alerts ever appearing. Noise rapidly worsened. [XXX]: expert friend drove it once, instantly recognized imminent failure, and ordered me to stop driving immediately. At ~20,000 miles, the dealer confirmed the drive unit must be fully replaced, still with no dashboard warning ever triggered. Had I kept driving while trusting the silent system, this critical component could have seized at any moment, causing sudden total loss of propulsion at highway speed or in traffic with my young child on board. The complete absence of any alert during a proven, progressive failure is an urgent, unacceptable safety defect that demands immediate investigation and recall before a family is injured or killed. As of [XXX] , the vehicle has been out of service for 33+ calendar days. The dealer informed me I am #60 in Mazda’s national transmission replacement backlog. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

    NHTSA complaint 11699970
14. Filed Oct 15, 2025Failure Oct 9, 2025Fremont, CAAir bags, Automatic emergency braking, Service brakesCrash2 injured

    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.

    NHTSA complaint 11693587
15. Filed Oct 8, 2025Failure Feb 12, 2025Encino, CAUnknown or other

    Apple CarPlay disconnects mid-drive, forcing the driver to handle their phone, causing distraction and navigation loss.

    NHTSA complaint 11692197
16. Filed Aug 26, 2025Failure Aug 5, 2025Cedar Rapids, IAExterior lighting

    Headlight module, ballast, bad noises from passenger side, under hood right next to passenger headlight.

    NHTSA complaint 11683205
17. Filed Jul 14, 2025Failure Jun 4, 2025College Station, TXAir bags

    I have received a recall notice back in June 5th. I tried to reach my dealer (Douglas Mazda) couple of times but they are not fixing it. As it has been announced that, it is not available. The vehicle is under warranty. PLease suggest me what steps I should take? As it is not not safe drive in any highway.

    NHTSA complaint 11673231
18. Filed Jun 6, 2025Failure Jun 5, 2025Highlands Ranch, COAir bags

    On [XXX] autoNation Mazda Arapahoe in Colorado sold me a car for my sign at 2024 CX 30 premium. They said there was an open recall that they needed to fix and we’re keeping the car overnight on June 6, 2025. They deliver the vehicle to my son around noon and around 6 PM on June 6. They contacted my son and said they shouldn’t have sold the vehicle to him and needed the vehicle back. This is my son‘s first vehicle and it’s not a good experience and the dealership should never have sold that car to us knowing that there was not a fix. They were well aware of this on May 29. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

    NHTSA complaint 11665223
19. Filed May 5, 2025Failure Apr 25, 2025Lacey, WABody

    The sunroof exploded. Was no external debris or damage. Glass pushed outwards. 47 degrees outside. Very sudden and scary.

    NHTSA complaint 11658839
20. Filed Apr 23, 2025Failure Apr 2, 2025Collegeville, PAAir bags

    Wife was driving 2024 Mazda CX-30 with (bought demo from dealer in February with 2500 miles on it and now 4006 miles) daughter ([XXX]) in passenger seat. Airbag deployed with no warning or malfunction lights or alerts prior. Knocked my daughter across the vehicle, startled and traumatized both of them. They were able to safely pull into a shopping center parking lot. Got vehicle towed to the dealer, John Kennedy Mazda in Pottstown PA. Called police--have report and pictures to document. Wife also has videos and pictures. The dealer provided us a loaner vehicle. Next day the service manager, Gary Daniels calls. I ask if he has ever seen this before. "I think I know what caused it. There was a bubble in the right front passenger tire." I responded that I saw how this was going and told him I will be in touch. Dealer not covering it under warranty and said "call our 800 # and your insurance." Called 800 line and talked to Giselle, our case manager who said this would be "escalated" and we would hear back in 48 hours. Of course, we did not hear back. Finally, after 2 voicemails and contacting Mazda USA via chat, they call back and say call insurance, it will not be covered under warranty. When I ask for what the escalation was, the rep said "well the dealer said there was a bubble in the tire." Complete runaround. I go to the dealer to return the loaner car and they provide me a watered down and inaccurate report saying the bubble was existing. Insurance has provided an estimate to repair the car for just under $5000. I am not comfortable having the dealer repair the car or any family member drive that car once repaired. Airbag malfunction warning lights everywhere post deployment. No warnings before and ridiculous claim that a bubble in a tire could cause an airbag to deploy. Considering the repair but also legal action as zero empathy by the dealer and no accountability of fixing what seems to be a similar issue in New Hampshire with the same model car 2 years ago. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF

    NHTSA complaint 11656445