2019 Mazda CX-5 electrical problems

Filed Oct 27, 2026 · Electrical · 37,000 miles · OH

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.

Filed Jun 25, 2026 · Driver assistance, Electrical · CO

The infotainment system is experiencing the "ghost touch" problem already identified by Mazda and there has already been a class action lawsuit won regarding this problem. I was not aware of this class action lawsuit or I would have participated to have my system repaired. My infotainment system is completely unusable and I have been told it is over $500 to repair/replace. I am the original owner of this vehicle. The system continuously beeps and changes all settings while I am driving. If I am using navigation, the screen switches to something else so that I can't see where I'm supposed to be going, causing undue slowing and or braking in city traffic. This is a safety problem. My infotainment system continuously goes into the settings and changes the navigation guidance volume and the car yells at me that, "NAVIGATION WILL BE AT THIS VOLUME." This has startled me and caused me to either swerve or brake abruptly due to being yelled at with out warning while alone in the vehicle. This is a safety issue. As a female who drives by alone 99% of the time, I have my doors set to lock and unlock in a specific manner to keep me safe. The system randomly resets all of these settings while I'm driving so I have no idea if the doors will be locked or unlocked and whether I will be safe when stopping in city traffic. This is a personal safety issue and causes undue stress. The system calls and hangs up on my family repeatedly, making them think that I am in danger or hurt. They try to call by and get hung up on. This is a safety issue because it causes distracted driving because I am focused on that problem instead of the road. All in all, the whole system is a safety problem and needs attention, especially since Mazda has already admitted to the problem.

Filed May 18, 2026 · Electrical · 35,000 miles · CA

The contact owns a 2019 Mazda CX-5. The contact stated while driving at an undisclosed speed, the instrument panel independently switched between features. The contact stated that the failure was persistent. The vehicle was taken to the dealer, however the vehicle was not diagnosed. The contact was requested to pay a diagnostic fee, the contact declined. In addition, the contact was informed that the failure was a known failure with the vehicle. The manufacturer was not made aware of the failure. The failure mileage was approximately 35,000.

Filed Feb 16, 2026 · Electrical · CA

The touchscreen digitizer on the Mazda Connect infotainment system has developed a known defect causing constant phantom/ghost touch inputs. The screen registers random touches without any physical contact, causing the system to navigate through menus, change vehicle settings (including safety-related settings such as blind spot monitoring and heads-up display), exit navigation mid-route, change radio stations, and initiate phone calls to contacts without driver input while connected to Apple CarPlay. This is a significant driver distraction and safety hazard. When the system begins making random inputs, the driver must divert attention from the road to attempt to regain control of the infotainment system or end unintended phone calls. The issue occurs most frequently when the vehicle is stopped or at low speeds but also affects the system while driving. This is a well-documented hardware defect affecting 2017-2020 CX-5 models, acknowledged by Mazda under TSB 09-003/22. The cause is a failing touchscreen digitizer, not a software issue. Mazda has not issued a formal recall despite widespread reports. The component is available for inspection upon request. The vehicle has not yet been inspected by a dealer for this specific issue. No warning lamps or messages preceded the failure — the phantom touch inputs developed gradually and have worsened to the point that the infotainment system is nearly unusable. Current mileage is approximately 60,000-80,000 miles.

Filed Jan 3, 2026 · Electrical · OK

The vehicle is experiencing a “ghost touch” malfunction within the infotainment system, wherein the touchscreen registers unintended inputs. As a result, the system intermittently initiates phone calls, changes radio stations, and alters other settings without driver interaction. This erratic behavior is highly distracting and presents a potential safety concern while the vehicle is in operation.

Filed Dec 4, 2025 · Electrical · NJ

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 the federal safety agency 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.

Filed Aug 15, 2025 · Airbags, Electrical · NV · fire

My vehicle was damaged by an as yet determined electrical fire seemingly having originated in the passenger door speaker components.

Filed Jul 24, 2025 · Driver assistance, Electrical · KS

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.

Filed Mar 25, 2025 · Electrical · CA

This is a complete electrical system failure. My screen continues scroll All Systems fails. At least it is not draining the battery again. I have had to replace the battery 2 times in the last 6 months. Maybe CarMax sold me a "lemon". . I received a recall notice, however when I spoke with the service department at the Bob Mazda dealership in Carlsbad and they told me that the recall on my vehicle is closed. I can come in for repairs, but at my own expense. I have only owned this vehicle for 6 months in which 2 months I was in the hospital recovering from a major surgery. When I get in my car and start it, if it starts the "blue" light is on every time, which is apparently Thermostat. After about 20 minutes or so the light turns off, sometimes 30 minutes. The next part is the scrolling malfunctions. It lists about everything on the car. I am [XXX] and live in Baja. I live in a very safe, gated with a security guard neighborhood, however I am scared of going any due to my car issues and being stranded. I also really need to cross the border to see my doctor but I am afraid. When you have to replace 2 batteries in 6 months and I have only driven under 5,000 since I purchased the car. Mazda needs to make me whole. My car also only has 24,000 and when I bought it had20,000 miles. There is something seriously wrong, actually multiple things are wrong with my 2019 Mazda. A person should never be afraid to get in the vehicle due to safety issues. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Mar 25, 2025 · Electrical · OH

While driving, the infotainment screen went crazy! It randomly changed screens rapidly, and the navigation voice started talking loudly about changing volume level, and repeatedly. Very distracting and dangerous.