MAZDA Complaints

Repeated instances of the Mazda Infotainment system making changes randomly without any user input while driving. Repeated instances of the navigation system freezing, going black, rebooting while driving.

The "Infotainment System" is activating itself and cycling through various options when I slow down or stop. It calls random numbers and changes settings on the system. It is distracting and dangerous. This is a known "ghost touch" problem for this model of vehicle, but the Mazda dealer I contacted in Knoxville, TN said it would cost nearly $300 to repair the problem (by replacing the entire system).

The carseat straps loosen on their own when in use. I buckle my son in correctly, chest clip correct, tightness of straps correct and throughout the drive the straps loosen until they are falling off his shoulders. His safety is at risk because if I drive with him and got into an accident he would potentially fly out due to the straps doing this. It has not been inspected but its available to be. I am not able to keep tightening the straps while driving. I have had to have a second passenger who can tighten them throughout the ride. I just purchased the seat a few weeks ago. I am not comfortable to use it at this time. When I noticed this was a repetitive issue I decided to message the company. When I upload documents this form wont send so I can send them via a different way of communication (email etc)

I own a 2020 Mazda CX-5 equipped with the Mazda Connect infotainment system. The touchscreen display malfunctions regularly by randomly selecting menu items, jumping between screens, zooming in and out, and activating functions without any input from me. These “phantom touch” events occur even when the vehicle is in Drive, which means the touchscreen should be disabled — yet the system behaves as if it’s receiving constant false touch input. When this happens, I cannot back out of screens or use the physical control knob or buttons, making it extremely distracting and unsafe while driving. The dealer initially diagnosed it as a screen laminate issue, which they said isn’t covered under warranty. However, this appears to be a known defect in the CMU (Connectivity Master Unit) that Mazda has not properly addressed in many cases, even though there is an ongoing class action settlement about it. The CMU passed their diagnostic test, but the issue persists — and others have reported receiving full replacements despite passing those same tests. Mazda refuses to escalate or repair unless the screen kit fails first. I believe this is a defect affecting driver safety, especially since it continues while the vehicle is moving.

Blind spot monitoring at highway speeds randomly triggers when nothing is there. Due to this, car fights lane changes due to collision avoidance system if you try to change lanes when it thinks something is there when it’s not.

Intermittently spanning several months, there is a sudden loss of power steering as the vehicle is in motion. Warning lights light up on the vehicle as power steering and power brakes are disengaged. Even though I provided a video of power steering loss, where a slight turn of the steering wheel engages this failure, where the dash board lights flash as power steering fails, the dealership will not fix anything they can’t duplicate in their shop. I guess they don’t believe their lying eyes, and don’t accept the video as proof of anything. It is doing exactly what it was recalled for back in September 15, 2010. Recall #10V374000. Mazda Corporate has been notified. Case # 00342901. There are known fixes for this problem. Mazda has done these repairs on hundreds of thousands of times. Dealership told me they will do nothing unless they can duplicate the problem. In reality it might take a month or more for this to show up at some unpredictable time and place. I have a potentially dangerous scenario awaiting me. Driving this vehicle in it’s present condition is recipe for a crash. This was a problem that Mazda addressed and fixed in the past. Being that it was done hundreds of thousands of times, I’m fairly certain that none of those fixes were predicated by mechanics having to see those issues in their shops before they did the repairs.

My seat doesn’t detect if passanger is in seat so my air bag engine light goes on and off it was recalled and mazda supposedly cleared the issue but seems like they didnt fix it the recall properly

The original OEM radio in my Mazda has been experiencing persistent ghost touch issues, making it incredibly frustrating to use. The screen often registers inputs without me touching it, leading to random changes in volume, station selections, and menu navigation. As a result, I find myself unable to rely on my radio for music or navigation, which significantly detracts from my driving experience. I’m considering possible solutions, but for now, it's an inconvenience that I can't overlook.

The rear hatch window shattered overnight while parked for no identifiable reason. There was no sign of a break-in or object that may have struck the window. Ring camera footage shows no one causing the damage.

When accelerating, the transmission feels jerky/stutters. The check engine light and traction control light are illuminated and on the instrument cluster the messages: "Forward Smart City Brake Support Malfunction", "Smart Brake System Malfunction" and "Front Radar Sensor System Malfunction" appear. The vehicle acts like it doesn't know which gear it should be in, it'll buck pretty hard and then it refuses to accelerate...it feels like it's in a "limp mode". A previous driver of the vehicle complained and said that it actually stalled in traffic on the highway and was of course difficult to steer due to loss of power. I took it to a dealership and they came up with a laundry list of things to fix...most of which wouldn't have any bearing on this issue. I did have the serpentine belt replaced and the belt tensioner replaced due to wear on the belt and loose tension. On 7/16/25, I scanned the vehicle with a code reader, the codes P0301 and P0506 appeared. P0301 is a generic "Cylinder 1 Misfire Detected" message and P0506 is a generic "IAC system RPM Lower Than Expected. The vehicle was taken to a shop where the spark plugs and the cylinder 1 coil was replaces and the IAC cleaned. On 7/24/25 the same vehicle behaviors were observed and the same warning lights and messages were activated. I scanned the vehicle and got "p0300 Random/Multiple Cylinder Misfire Detected and P0304 Cylinder 4 Misfire detected. There was a recall on this particular vehicle make, model and year and my vehicle was out of the VIN# range. I firmly believe that the recall needs to be expanded to include a larger number of vehicles...you can google about this vehicle and see many others with similar issues. Usually, the cure is a PCM reflashing/software update that seems to take care of the issue. Please expand the recall before someone dies in an accident because of this problem.