MAZDA Complaints

I wondered if, after my first service visit on 11-12-25, the dealership put regular leaded gas instead of premium in it, because there was a noticeable difference in gas mileage and the engine started revving pretty high, in my opinion. It also seemed to have less power (which was my main reason foe thinking the wrong gas had been out in). And since then, it hasn't been the same.

At an unspecified service visit I Was told tires were at manufacturers recommended psi YESTERDAY - left the lot at 1530. The next morning - warning system indicated low psi- even as low as 30psi and front passenger so low it did not give a reading??? I have no idea why a service visit was even recommended at 1000 miles. Intake rep said for manufacturer oil change and maintenance?! 1000 miles? Bought 11-8-25?! So, if service visits are directly tied to software communication of the vehicle then, thats being reported too.

I have noticed over 30 things wrong with this car. Including but not limited to- the FIRST THINGS I mentioned to the dealership there seems to be apull to the right (suspension/alignment). The car randomly starts driving or feeling 'jerky" as if cruise control has taken over - 'phantom braking' is a term I came across that sounds accurate to me. And now, after having the vehicle for almost 30 days- there is significantly less mpg.received. 300 first tank vs about 250 this current tank.

“My 2022 Mazda 3 is experiencing an ‘in-network malfunction’ related to the vehicle’s internal communication system. Multiple technicians have told me this is an internal vehicle network/communication fault, not caused by wear or damage. The dealer refuses to repair it unless I pay out-of-pocket, even though this appears to be a manufacturer defect in the electrical network system, (TCU)This malfunction affects the reliability of the vehicle’s electronics and could impact safety systems while driving. Mazda has not taken responsibility for diagnosing or repairing the issue, and I believe this defect needs to be investigated, as other owners may be affected as well.”

Summary of Issue: The infotainment system in my 2019 Mazda CX-5 has been malfunctioning for a long period of time, and the issue has now escalated to the point where the system is unsafe and distracting while driving. Details: The infotainment screen intermittently “ghosts” and activates functions on its own—clicking through menus, changing settings, and moving erratically without any driver input. The system has also frozen and rebooted while the vehicle is in motion. This creates a serious distraction and safety concern. I previously reported this issue to the dealership, where they attempted a reset and told me to come back if the problem returned. The issue persisted and worsened. I recently returned, and the dealership diagnosed a communication failure between the CMU and the infotainment screen. However, they cannot identify any cause, and the screen itself has no physical damage and has never been struck. Mazda has declined to cover this under warranty, even though this appears to be an internal failure of components that should not fail at this mileage. Additionally, infotainment failures in Mazda vehicles have been the subject of prior complaints and service bulletins. Safety Concern: The malfunction causes the screen to operate unpredictably while driving, which distracts from the road and creates a risk of an accident. Because the system controls access to vehicle settings, Bluetooth, audio, navigation, and backup camera interfaces, the failure presents a potential safety defect. Requested Action: I am requesting that NHTSA investigate whether this infotainment / CMU communication failure is a broader defect affecting 2019 Mazda CX-5 vehicles, as dealerships cannot identify the cause and the failure poses a clear distraction hazard.

Dashboard lit up like a Christmas tree. Multiple warning lights all at once. This issue has been reported on multiple Mazda vehicle years. Took to Delker Auto repairs. Is electrical problem. Stated that so far nothing wrong with components. Will have to hunt for. Mazda has known electrical issues. In addition, your file upload will not let me upload picture even though it's in correct format. I can send separately.

The lower control arm or axel on the front passenger side broke as I was backing out of a parking spot. It is still at the mechanic however that is what is required to put the wheel back on the vehicle. My understanding is that this is the second time I have had this problem with the lower control arm on this vehicle. That could be very dangerous if that happens while on the highway and I’m concerned there is a fundamental problem with this car if it has happened twice. The first time the car was only a few years old. It was around 2016 if I recall correctly and Mazda fixed it.

Question 1 - What component or system failed or malfunctioned, and is it available for inspection upon request? Answer 1 - The Engine Cylinder Head. The cylinder head developed a crack, causing a significant oil leak. The car is currently at the dealership but is available for inspection upon request. Question 2 - How was your safety or the safety of others put at risk? Answer 2 - The defective cylinder head is leaking engine oil directly onto hot exhaust components. This creates an immediate risk of engine fire and causes smoke to enter the vehicle cabin, impairing visibility and driver health. Additionally, the loss of engine fluids creates a risk of sudden engine failure or stalling at highway speeds. Question 3 - Has the problem been reproduced or confirmed by a dealer or independent service center Answer 3 - Yes. The vehicle was diagnosed by an authorized Mazda dealership. They confirmed the cylinder head is cracked and requires replacement. The dealership acknowledged the failure and offered a partial repair discount, confirming their diagnosis of the defect. Question 4 - Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Answer 4 - Yes. The vehicle has been inspected by an authorized Mazda dealership technician acting as a representative for the manufacturer. I have also escalated the issue to Mazda Corporate (case number can be provided upon request), who reviewed the dealership's findings but refused to cover the full repair cost. Question 5 - Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Answer 5 - I noticed an oil leak on my driveway. I noticed it and brought it in to be looked at the first week of November 2025.

The front camera didn't operate properly The brakes have an elongated stopping distance

My mechanic told me to check with Mazda as there might be a recall that has not been taken care of yet. I called Mazda and they told me there were 3 recalls (2 of which my mechanic already fixed) and the airbag recall. Told me not to drive, but would not provide any vehicle to use and would not set an appointment until December 8th, 2025.