2024 Mazda CX-50 Electrical Problems

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.

NHTSA ID

11770595

Incident

Aug 8, 2026

This is the 2nd time I’m reporting that I was severely burnt on my thigh from my drivers seat heater, overheating. There are on going glass action law suits against Mazda for this issue. My 2024 CX-50 has not been in service at Olympia Mazda with no updates on repairs and when I will get my car back. Please help me!

NHTSA ID

11751806

Incident

Jun 21, 2026

I'm curious how many other Mazda owners are dealing with the same battery drain issue. I'm now on my third battery since 2024: Factory battery replaced under warranty in 2025. Second replacement purchased in March 2026. Within a month, the "Battery Low - Drive Vehicle to Recharge" warning was back. The dealer kept my vehicle for four days to monitor it, but they couldn't find anything abnormal. This started long before I had a dashcam professionally installed, so that's not the cause. I've read numerous posts on Facebook from other owners mentioning: A door module that can get wet after heavy rain and cause a parasitic battery drain. The key fob constantly communicating with the vehicle when it's within about 20 feet, potentially contributing to battery drain. I mentioned the door module issue to my dealer, but they said they had never heard of it. At this point, it's becoming incredibly frustrating. A modern vehicle shouldn't be going through batteries like this, especially when the dealer can't identify the root cause. I started to document the times that my dashboard warning pops up that the battery is low.

NHTSA ID

11750756

Incident

Jul 1, 2026

Driver of the vehicle was parking the vehicle in a parking lot, foot nowhere near the accelerator when the car suddenly surged forward striking a parking pole.. The driver side front quarter panel took on heavy damage along with the sensors.. Car had to be towed... It accelerated by itself...

NHTSA ID

11750004

Incident

Jul 10, 2026

Vehicle was dormant overnight and caught fire. Battery disintegrated and fire tore across the entire engine compartment and front end. Fire department conducted investigation and determined mechanical failure. Showed no signs of issue before hand was driven shortly the night before to move parking spots.

NHTSA ID

11728409

Incident

Feb 3, 2026

The vehicle had the original OEM battery fail at 15 months. It dropped to 7v under light load. It's a bad battery. Upon being jump started, the power steering went in and out while driving and the dashboard blinked on and off...throwing a lot of errors that are unrelated to the battery problem. The failure state of the vehicle with a bad battery is unlike any vehicle I have ever seen and it is extremely dangerous. Furthermore, Mazda roadside assistance does not know about this issue and only offers jumpstarts, putting customers into danger by suggesting that the vehicle is safe to drive with a battery that is not stable.

NHTSA ID

11684560

Incident

Sep 2, 2025

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.

NHTSA ID

11629934

Incident

Oct 10, 2023

Mileage

13,522 mi

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

NHTSA ID

11599854

Incident

Jul 6, 2024