2025 Mazda CX-50 problems

Filed Nov 8, 2026 · Acceleration, Brakes · GA · crash · 1 injury

On XXX, I was driving my 2025 Mazda CX-50 Hybrid in stop-and-go traffic in [XXX]. While driving in traffic, the vehicle suddenly accelerated without my intention. I applied the brake pedal in an attempt to slow or stop, but the vehicle did not decelerate as expected. Despite my attempt to brake, the Mazda collided with the vehicle ahead of me, resulting in a multi-vehicle collision. Following the initial impact, my vehicle moved backward and struck another vehicle behind me. I experienced a forceful backward movement and felt as though I had been thrown backward. The airbags deployed. Police and emergency medical personnel responded. A child passenger sustained a small cut to her head and was medically evaluated. The police report includes a witness account describing the Mazda's sudden acceleration before the collision. I am concerned about possible unintended acceleration and braking-system performance. The specific mechanical or electronic cause is UNKNOWN. I have not received confirmation that a particular component malfunctioned. The vehicle was declared a total loss by my insurance company. It was expected to be transferred to a Copart facility. I do not know whether the vehicle has undergone a mechanical inspection or whether its electronic diagnostic and event data have been preserved. I am reporting this incident because the unexpected acceleration and inability to slow the vehicle as expected created a serious risk of injury to occupants and other motorists. I request that the federal safety agency evaluate this incident for a possible vehicle safety defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 5, 2026 · Electrical, Engine · GA

The vehicle experienced a total electrical blackout, refused to start for hours, and threw a U0115 (Lost Communication with ECM/PCM B) network code. I consider this an extreme safety hazard because a communication failure of this specific kind risks causing an unexpected engine shutdown or total loss of motive power while driving. This car only has 8,500 miles on it, so a problem this severe this early is extremely concerning!

Filed Oct 14, 2026 · Transmission · PA

The rear differential makes a grinding, clicking noise when traveling at low speeds and especially when turning. After a fluid change the on the differential, a large amount of metal fragments were visible in the oil. Also causes rear wheel hop on sharp turns. This is a known issue amongst CX50 owners but Mazda refused to acknowledge an issue. The issue started for me around 40k miles. Just outside the warranty period.

Filed Sep 8, 2026 · TX

My child is able to pull the pads off of the car seat. This is so unsafe and should not be allowed to happen. She is only [XXX] old. I am unable to resume the pass to the car seat. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 2, 2026 · Body · NY

The factory adhesive/anti-flutter sealant that bonds the outer hood skin to the inner structural frame has physically separated. There is a clear gap where the outer panel is no longer attached to the frame. As a result, the outer hood skin flexes and vibrates, especially at highway speeds. Impact / Safety Concern: The vibration and movement of the outer hood panel occurs directly in the driver’s forward line of sight. This creates a visible distraction while driving and can draw attention away from the road. Because the outer skin is no longer properly bonded to the structure, the condition is progressive and may worsen over time. Dealer Response: I documented the adhesive separation on the work order. The service advisor lowered the hood insulation and photographed the panel separation. Despite clear visual evidence, the technician closed the concern as “no issue with the hood insulation” and “no fault found.” The same separation was also observed on another CX-50 at the dealership. I am filing this report so the condition can be properly documented while the vehicle remains under warranty.

Filed Sep 2, 2026 · Body · OH

The drivers side inside door handle has quit working twice. The dealer has temporarily fixed it both times, but advised us to "just be more gentle with the handle". The cable is falling off of the door hinge inside the door, and the dealer claims they don't have a way to permanently fix it. They just put it back on its mount. We are afraid that the driver will not be able to escape the vehicle in an emergency. Both instances have been under 10,000 miles. The door handle works perfectly fine until it doesn't work at all. No warning given.

Filed Aug 31, 2026 · Brakes, Driver assistance · OH

The automatic emergency braking in this vehicle is faulty. It misinterprets obstacles and uses the emergency braking inconsistently. I park in a parking garage and I have to slowly (less than 5 MPH) drive up any ramps because it apparently sees the ceiling of the garage as a obstacle and as a result, will randomly brake with no notice (which feels like getting rear ended). The dealer said it is working as designed and said I can turn this function off, but I have to turn it off every time I start the car. I also updated the sensitivity t the lowest setting, which didn’t help. I’m worried about this issue happening when I’m in traffic or bad weather and what might occur, like an accident. I’ve talked with other users of this same vehicle and they have ran into similar issues. Based on my experience, I think the system is defective and is a safety issue.

Filed Jul 30, 2026 · Engine · FL

"My 2025 Mazda CX-50 began overheating while still under the factory warranty. During one incident, the engine lost coolant and overheated. I immediately shut the engine off to prevent damage. The vehicle continues to overheat, and the air conditioning only cools properly while the vehicle is moving. When stopped or idling, the A/C stops cooling. I have reported the issue to my Mazda dealer and opened Mazda Customer Experience Case Number 00473077. The problem remains unresolved despite multiple attempts to obtain assistance. I am concerned this condition presents a safety risk." "The vehicle has been inspected by an authorized Mazda dealership on two separate occasions. The dealership kept the vehicle for several days during these inspections but reported that it could not reproduce or identify the cause of the overheating. Despite these inspections, the overheating condition and the air conditioning issue continue. During one of the service visits, I also discovered scratches to the vehicle's exterior that were not present before it was left with the dealership."

Filed Jul 27, 2026 · Electrical, Visibility · TX

While driving my 2025 Mazda CX-50, the entire center-dash climate control panel (HVAC module) suffered a sudden, spontaneous, and total electrical power blackout. The unit completely loses power and goes dark exactly as if the power button was pressed. This is a recurring failure that occurs after only a few minutes of vehicle operation. This electrical failure immediately cuts all airflow and A/C cooling to the cabin. The unit can temporarily be turned back on manually, only to black out and fail completely again minutes later. This represents my second consecutive modern Mazda vehicle to experience an early-mileage HVAC hardware/electrical failure (previously a CX-30), indicating a dangerous, recurring manufacturing defect in Mazda’s electrical/climate control architecture that requires a formal safety recall. Additional Considerations: Distraction and Loss of Driver Focus, Rapid Window Fogging and Blindness, Extreme Heat Exhaustion and In-Cabin Medical Emergency, and Broader Electrical Fault Concerns.

Filed Jul 21, 2026 · Driver assistance, Suspension · CA · crash · 1 injury

The vehicle was traveling at highway speeds when it experienced a sudden, violent lateral jerk to the side, causing immediate side-curtain/seat airbag deployment prior to impacting the center divide. I believe there was a sudden, catastrophic mechanical failure of the front suspension componants causing a partial detachment of the front driver's side wheel. This failure mirrors the exact defect described in the federal safety agency Campaign 24V834000 / Mazda Recall 7925J regarding un-torqued front suspension fasteners. We believe our vehicle suffered from this exact factory build issue despite falling outside the initial recalled VIN list. Insurance claim to follow.