2024 Mazda CX-50 driver assistance problems

Filed Oct 15, 2026 · Driver assistance · CA

Front license plate in OEM factory location interferes with forward radar sensor, causing phantom automatic emergency braking events in moving traffic. Vehicle came to complete stop in active traffic lanes on multiple occasions, creating severe collision risk. Removing the plate (in violation of California law) restored normal sensor function.

Filed Oct 12, 2026 · Brakes, Driver assistance · CA

FORMAL VEHICLE SAFETY COMPLAINT Vehicle: 2024 Mazda CX-50 Subject: Repeated Unintended Emergency Braking, False Collision Warnings, and Persistent Braking-System Malfunction I am submitting a formal safety complaint concerning serious and recurring braking-system malfunctions involving my 2024 Mazda CX-50. The vehicle initially began displaying false collision and braking warnings despite there being no apparent hazard or obstruction. These warnings occurred repeatedly and eventually progressed to incidents in which the vehicle activated its automatic emergency braking system without justification. During one particularly dangerous incident, I was traveling approximately 75 mph on the freeway when the dashboard suddenly displayed a red braking warning and the vehicle automatically applied its brakes with extreme force. There was no apparent vehicle, pedestrian, or obstruction requiring emergency braking. The sudden and unexpected deceleration nearly resulted in a serious collision. These problems are not isolated. The vehicle continues to experience false collision alerts or unintended braking on an almost daily basis, even when no hazard is present. Additionally, the vehicle repeatedly displays the following warning: “Braking System Malfunction. Stop the Vehicle in a Safe Location.” This malfunction warning typically appears during morning operation and does not resolve simply by shutting off and restarting the vehicle. I have photographic documentation of the warning. Although the brake pedal generally feels normal during manual braking, the vehicle’s unexpected automatic braking is extremely forceful and creates a substantial danger to occupants and surrounding motorists. I am aware that Mazda issued Service Alert SA-007/24 concerning unintended Smart Brake Support operation involving certain Mazda vehicles, including the CX-50. I request that this information be considered when reviewing my complaint.

Filed Feb 17, 2026 · Driver assistance · 16,937 miles · FL · crash · 1 injury

The contact owned a 2024 Mazda CX-50. The contact stated that while driving at an undisclosed speed, after exiting the freeway, the contact was distracted, and when the contact turned to face the road, the vehicle rear-ended the vehicle in front. The contact stated that from the impact, the vehicle that was rear-ended was pushed into the vehicle in front. The contact stated that the crash imminent braking and the forward collision warning failed to function as intended. The contact stated that the driver-side air bag and the knee air bag were deployed. The contact was unsure whether there was a warning light illuminated. A police report was filed. EMS was called to the scene. However, the contact refused to go to the hospital by ambulance. Afterwards, the contact went to the hospital. The doctor diagnosed that the contact had a swollen spleen on the left side. The contact stated that the shoulders and back were sore, and the left knee was swollen. The contact attended physical therapy. The contact was able to drive the vehicle back to the residence. The insurance company towed the vehicle to an unknown location and deemed the vehicle a total loss. The manufacturer was notified of the failure, and a case was opened where assistance was declined. The failure mileage was 16,937.

Filed Jun 25, 2025 · Driver assistance · NY

For about one week now. The blind spot monitoring system fails in heavy traffic. It works when you start the car, works in lite traffic. But on the highyway or heaver traffic it stops working. The dealer said it worked when test driven for 10 minutes. After blind spot stops functing then the cross traffic alert fails. Our cargo bay door refused to close yeaterday. All buttons just cause a beep to sound. After 10 minutes , restatring the car, locking & unlocking the doors by remote & inside switch. I had to physically close the hatch against the motor. The blind spot failed on the ride home from the dealer when surrounded in traffic. Video made of failuer.

Filed Jun 25, 2025 · Driver assistance · NY

The blind spot monitoring stops after a few minutes on the highway. Dealer said no trouble foun d. When in traffic it stops working, backing up no notification cross traffic, cargo door stuck open. Adter 10 minutes shutting off car. Restarting, trying inside button, door button and the remote. They all failed to close door. Had to manually close cargo hatch. It worked the next morning. The blind spot, cross traffic doesnt work! It works for a few minutes after starting car but under traffic condtions it fails to notify on both sides of the vehicle. It failed first on passenger side. Now both sides fail in heavy traffic conditions. I have videos to prove the failures.

Filed Mar 13, 2025 · Driver assistance · PA

Collision Prevention System is dangerous. I was nearly rear ended going 75 mph on the PA Turnpike. I was passing a truck that was in the right hand lane when all of a sudden the brakes automatically engaged hard and I nearly was rear ended by another vehicle that was right behind me. It braked so hard it made the tires squeal. I contacted two dealerships and told them what happened and both told me there haven't been any problems with the system that they were aware of and maybe a software update would help. Neither dealership checked if a update in fact was available. I turned the system off and will never turn it back on because it is so dangerous!

Filed Dec 10, 2024 · Brakes, Driver assistance · 13,522 miles · IN

The contact owns a 2024 Mazda CX-50. The contact stated that while reversing at approximately 2 MPH into a parking slot, the rear back up sensor warning was illuminated. The contact stated that the sensor was designed to alert the driver whenever the vehicle was too close to an object. The contact stated that the rear collision braking system warning was also illuminated. Additionally, the contact stated that a factory installed trailer hitch warning was also illuminated intermittently. The contact stated that the electrical failure was intermittent and occurred at various speeds. The contact stated that while depressing the brake pedal, the front brakes were making an abnormal rubbing sound. The contact stated that after releasing the brake pedal the sound stopped. The contact stated there was no warning light illuminated. The contact had taken the vehicle to a local dealer, who was unable to duplicate the failure. The contact stated that the vehicle had been taken to the same dealer several times. The vehicle was not diagnosed or repaired. The manufacturer was informed of the failure. The failure mileage was 13,522.

Filed Jul 7, 2024 · Driver assistance, Electrical · AZ

Automatic transmission failure, engine malfunction, safety driver function. My car will not accelerate, or move out of 1,2,3 gear.

Filed May 10, 2024 · Driver assistance, Transmission · WA

Two things here. One is when using adaptive cruise control; when there is a car in front that is going slower than your speed your car will slow down. But when it goes out of the way the car will just rev up as much as it can and just catch up to speed. My Camry before this had two options of speeding up; one slower than the other so it saves the transmission. Also, my engine would randomly be at higher rpm’s than usual when at park. It would idle higher than go lower than back and forth. I’ve experienced it during cruise control when randomly my engine would be revving up and down; car being a little jerky. I’ve read online that Mazda is known for transmission issues with also their transmission sensors. Something needs to be done ASAP and fix the issue

Filed Apr 15, 2024 · Driver assistance · MN

This feature is only able to be turned off by going through 3 or 4 submenus in settings. This is extremely distracting while driving at highway speeds and poses a safety risk. This change does not persist every time you restart the car like other safety features such as lane keep assist. This leads to needing to then navigate through multiple menus while driving if you forget to turn it off every time you start your vehicle if you prefer not to use this feature.