2019 Mazda CX-5

The contact owns a 2019 Mazda CX-5. The contact stated that the infotainment system occasionally turned off independently, preventing the radio and GPS from operating as intended. The contact stated that while driving, the voice assistant feature repeatedly activated at a very high volume, prompting the contact to attempt to mute the sound while operating the vehicle. The vehicle was taken to the dealer, where it was diagnosed with radio system ghosting. The system was reprogrammed; however, the failure worsened. The failure mileage was 37,000.

7 year old vehicle purchased new 2/23/2019 with 80,000 miles driven. Rear of cylinder head has cracked causing an oil leak. Leaking engine oil dripping directly on the exhaust components creates an immediate, severe under hood fire risk and visibility hazard while driving.

The “ghost touch” issue with the touchscreen on the display on my Mazda is added to all the 1000s of others reported on multiple sites by consumers on the internet. It is a very serious destruction from driving and that is a safety issue. Mazda has issued a technical bulletin but that is forcing consumers into buying another display board for something consumers did not cause and cannot afford. Why is this a safety issue? Because when you’re driving or stopped at a traffic light, the screen will randomly float from one input to another, sometimes even dialing people from the contacts list that is synchronized from your smart phone or inexplicably, changing stations and responses to touches that the drivers never initiated, therefore causing a distraction from watching what’s happening on the road ahead. Drivers have to take their eyes off the road ahead and shift over to the display to understand what’s going on if that is not also a safety issue I don’t know what is. Mazda has to be forced to issue a safety recall on the touchscreens for all affected vehicles.

I purchased a used 2019 Mazda CX-5 in 2024, with 25,000 miles on it. In June of 2026 I started to have an oil leak. Took it to a mechanic's shop who diagnosed it as a valve cover gasket, ran the car for another 2 months, oil leak did not stop, got worse, to the point where my oil light came on where the oil was low enough, then I took it to another mechanic, they diagnosed it as some sort of pressure sensor that has to do with the oil, they replaced that, then that still wasn't the case, it was leaking, and they diagnosed it as a cracked cylinder head. This has been an issue with Mazdas in the 2018 to 2022 range for the CX-5s, and Mazda knowingly has put in faulty parts and is not willing to extend the warranty on this because it's not a turbo, this is a clever work around to avoid paying for something that should not be going out at this point. For this car being under 60,000 miles, been taking very good care of it, always had the oil changed, I feel that this is not fair for the customer to have to replace something on an engine that shouldn't be addressed for a very long time, if at all. I contacted Mazda corporate, they refused to do anything about it, I also contacted the Mazda dealership in my area, they contacted Mazda corporate and are not willing to cover this as well, my parents had a Mazda back in 2008 that had a similar problem. The only way this was resolved was going through Mazda corporate and writing a stern letter to their management team. At this point I've basically lost the trust of this manufacturer. I spent 25,000 dollars on this car, and now I'm going to have to spend 7 to 8 thousand dollars to get this part replaced, and that this point in the car’s life, that is outrageous. I will not be purchasing from Mazda ever again, there is plenty of documentation on the internet about this problem, and that Mazda refuses to do anything about it.

1. January 2025 Diagnosis (Inside Powertrain Warranty): I presented the vehicle (2019 Mazda CX5, 36K miles) with severe transmission jerking and shift lurching at a local Mazda dealership. Technicians diagnosed teh issue as described in TSB 05-004/23 and applied a software flash to the PCM/TCM stated in TSB 05-004/23. Mazda’s oicial text states the root cause of this symptom is torque fluctuation and torsional resonance within the torque converter. 2. Current Symptom (Defect Manifestation): The vehicle now exhibits the distinct upshift chirp detailed in TSB 05-005/23 (NHTSA ID MC-10246127-0001). Mazda’s documentation states the root cause of this chirp is excessive wear of the lock-up clutch inside the torque converter, which sheds iron powder directly into the automatic transmission fluid (ATF). The torque converter is a single, closed mechanical component. In January 2025, while the vehicle was fully covered under the 5-Year/60,000-Mile Powertrain Warranty, the torque converter's internal clutch was already undergoing accelerated physical degradation. Instead of proper mechanical diagnostics, the service department applied an electronic software patch. This patch merely altered the lock-up engagement timing to mask the torsional resonance rather than fixing the failing hardware. Applying a temporary software patch that delays a catastrophic component failure past a calendar date does not absolve Mazda dealership or Mazda Corporate of liability for a pre-existing, documented torque converter manufacturing defect which affect the entire power train of the vehicle. There are numerous complaints about this and subsequent failing transmission and expensive repairs reported so many online forums (reddit, facebook) again indicating this is a wide spread issue affecting consumer safety eventually leading to expensive out of pocket transmission repair. Mazda corporate need to be liable for this serious manufacturing defect on their transmission system.

1.January 2025 Diagnosis (Inside Powertrain Warranty): I presented the vehicle with severe transmission jerking and shift lurching. Your technicians applied a software flash to the PCM/TCM per TSB 05-004/23. Mazda’s official text states the root cause of this symptom is torque fluctuation and torsional resonance within the torque converter. 2.Current Symptom (Defect Manifestation): The vehicle now exhibits the distinct upshift chirp detailed in TSB 05-005/23 (NHTSA ID MC-10246127-0001). Mazda’s documentation states the root cause of this chirp is excessive wear of the lock-up clutch inside the torque converter, which sheds iron powder directly into the automatic transmission fluid (ATF). The torque converter is a single, closed mechanical component. In January 2025, while the vehicle was fully covered under the 5-Year/60,000-Mile Powertrain Warranty, the torque converter's internal clutch was already undergoing accelerated physical degradation. Instead of physically inspecting the transmission fluid for iron contamination as dictated by sound mechanical diagnostics, your service department applied an electronic software patch. This patch merely altered the lock-up engagement timing to mask the torsional resonance rather than fixing the failing hardware. Applying a temporary software patch that delays a catastrophic component failure past a calendar date does not absolve Mazda dealership or Mazda Corporate of liability for a pre-existing, documented defect. In addition there is numerous complaints related to same issue is being poped up online and it appears to be wide spread manufacturing defect problem.

2019 Mazda CX-5 developed P0192-00 fuel-pressure-related fault and significant loss of acceleration/limp mode. Mazda dealership diagnosed fuel rail/injector-seal issue and performed approximately $2,836 in repairs. The condition was not corrected. Dealer now diagnoses a high-pressure fuel-pump failure and is requesting an additional $1,459. Vehicle has experienced loss of power while driving. There is an existing Mazda fuel-pump recall affecting some 2018–2019 CX-5 vehicles, but Mazda says my VIN is outside the recall population. I am concerned about a potential fuel-system safety defect.

The contact owns a 2019 Mazda CX-5. The contact stated that while driving at 55 MPH and turning into a driveway, smoke emerged from the engine compartment. The vehicle was turned off and inspected. Upon opening the hood, smoke was observed near the rear firewall of the engine compartment, and oil was leaking under the engine compartment. The source of the leak could not be identified initially, and the vehicle was towed to an independent mechanic, where a leaking cylinder head was diagnosed. The vehicle was not repaired. The vehicle was then taken to a dealer, where it was confirmed that the cylinder head was leaking oil and needed replacement. The vehicle was not repaired. The manufacturer was notified of the failure, and a complaint was filed. The failure mileage was approximately 100,000.