2020 Mazda CX-5

During snowfall, the front camera becomes obstructed, leading to a malfunction in the smart brake system. When this occurs, an alert appears indicating a “Smart Brake Failure,” accompanied by an audible warning and the illumination of the check engine light. The vehicle then exhibits unpredictable behavior, including unintended braking and sudden acceleration, creating a hazardous driving situation. The only temporary resolution is to restart the vehicle; however, the check engine light remains on for several days before eventually turning off. This issue occurred while I was driving on the highway on February 19, 2025, posing a significant safety risk. This is not the first time the car has done this.

Forward Braking Safety Sensor Was on transmission after braking check engine light . Was driving car from work it lost all power . And those warning ⚠️ light indicators where on . Car wouldn't go over 15mph . Took vehicle to mazda and dropped it off as my husband requested information do so . Mazda called say diagnostic saying it needed plugs ,coil packs serpentine belt and adjuster pulleys replacement. I called my husband he's a mechanical engineer he said no way it needs a tune up that early. He requested information go get the car as he flew home from working outta town. We took it to scooter's place certified mechanic in Indian Head md . Scooter's place diagnostic scan said completely the opposite. Say it was the cars brain aka cpu send false signals causing misfire to all components of vehicle . He change one spark plug and car ran normal. He told us it wasn't a fix it was cpu and no matter tune up or not . The computer was the issue. I went back to passport mazda in Suitland Maryland to give them second opinion issues the GM wouldn't give my money back for false diagnostic readings and refused to listen or hear what I had to say I was to upset to continue and decided to leave . He kept saying he wasn't a technician so he doesn't know but was explaining technician issues that were incorrect i have both diagnostic detail paperwork which i will attach with report

The contact owns a 2020 Mazda CX-5. The contact stated while driving at an undisclosed speed, the vehicle shuddered and lost automotive power and failed to exceed 15 MPH. The vehicle failed to return to normal operation. The failure had occurred on several occasions. The contact stated that the infotainment system was inoperative. The contact stated that several unknown warning lights were illuminated. The vehicle was taken to a dealer where it was diagnosed that the ignition coils needed to be replaced. The vehicle was not repaired. The vehicle was taken to an independent mechanic where it was diagnosed that the CPU system needed to be replaced. The manufacturer was not notified of the failure. The failure mileage was approximately 80,000.

My infotainment display has a prevalent ghost touch issue that causes majors distractions while I'm driving, and no warnings on when it'll happen. The ghost touch will end my navigation, end my calls or put them on hold, call random people in my contacts, turns on/off the music, changes the volume, changes various settings (sometimes safety settings), switching back/forth to different things, etc. It used to only happen when the car was not moving or I'm parked (as the touchscreen is only supposed to be available then), but now it's happening even when I'm driving on the freeway. I used to try correcting/fixing whatever by using the knob control, but the problem can become so severe that even when I use the physical knob I can't gain control over it. I can't turn off the infotainment display because the ghost touch just turns it back on! I brought it into my local Mazda dealership for regular servicing and decided to ask about it, but they're quoting me over $800 to fix it. They said it's a common issue they get all the time and it's something to do with a faulty screen?? Not too sure what exactly, but a friend of mine said he had the same issue and the issue was too sporadic he decided to disconnect the touch screen altogether. It's too much of a distraction to deal with while driving, even for quick trips to the store, etc. It causes cognitive, visual, and manual distractions...these faulty screens are putting us all at a higher risk of being involved in an accident by taking our attention away from driving, even for just a split second.

I was in the drive thru at a restaurant and had my foot on the brake. After a couple of minutes of sitting with my foot on the brake, I gently pressed the accelerator to slowly move forward. All of a sudden the car sped up on its own like I had floored it. The speed of acceleration threw my head back and the car whipped around the front of the building as that's where I was steering. I braked and it thankfully stopped, but if a car had been in front of me I would have slammed into it. I could have hit a pedestrian. This was very scary and its an obvious safety concern. Mazda needs to look into this issue as I see there are other reports on this website and on the internet by numerous people for the same issue of sudden acceleration by the vehicle on its own.

Low oil light came on at 52,764 miles, 300 miles before the next oil change on the manufacturer-recommended 7500 mile schedule. I've switched to a 5000 mile oil change schedule and will be monitoring oil level going forward for excessive oil consumption. I have always done oil changes every 7500 miles and have followed all other maintenance prescribed in the manual.

The vehicle accelerated on its own, while I was parking. My foot was on the brake when the vehicle just took off. It continued to accelerate until a building stopped it. I continued to brake but the vehicle did not stop. Once the vehicle collided with building, saw on the digital read out the "Brake System Malfunction" and then Camera Malfunction. The vehicle was towed from the site and the insurance adjuster has sent me word that the vehicle is a total loss.

The rear windshield wiper stops working while driving in a rainstorm. This has happened twice. The wiper works for 30-60 minutes and then stops. Was inoperable for the remaining 4 hours of the trip. When we took the car in for troubleshooting the 1st time, they could not reproduce the problem. After the second time the dealer was able to reproduce the problem. It appears to be related to the operating time and not the rain. Searching online discovered numerous Mazda CX5 owners reported the same issue. Our safety was at risk since we could not see out the rear windshield. The vehicle has not been inspected by the manufacturer. There were no warning lamps, messages, or other symptoms that warned us the wiper had stopped working. We noticed it had stopped by looking out the rear view mirror.