2023 Tesla Model 3: brake failure

Filed Apr 21, 2026 · Driver assistance · TX · crash · 2 injuries

While driving at highway speed under normal operating conditions with the accelerator engaged and no braking input, the vehicle suddenly experienced a sustained 6-minute-12-second ADAS/EDR degradation cascade. This included OVERHEAT_PROTECT_FANONLY activation, repeated AEB_CAN_STATE_UNAVAILABLE toggling, FAULT 14.0 brake-signal mismatch, impossible negative brake pressures, and 27+ ABS/EBD/ESP fault-lamp cycles. No warning lamps, messages, or alerts appeared prior to the cascade. The degradation resulted in loss of braking assist and stability control functions, causing two collision events (right-side T-bone impact followed by curb strike) despite no driver error or input. This failure mode matches the exact ADAS/EDR degradation pattern under active the federal safety agency Engineering Analysis EA26002. Full technical details, timestamps, fault logs, sampling gaps, and EDR data are provided in the attached narrative PDF and supporting CSV files.

Filed Nov 2, 2025 · Acceleration, Brakes · WA · crash

The vehicle’s brakes did not work, automatic emergency brakes and collision warning both did not work. I pressed on the brake for about 5 seconds but the brakes did not work, resulting in a collision with the car in front. Everything is available for inspection if needed. Both my safety and the driver of the vehicle in front of me was at risk. The problem has not been confirmed yet. The vehicle is currently at a shop, waiting inspection. There were no warning lamps, messages, or symptoms.

Filed Sep 20, 2025 · Acceleration, Brakes · GA · crash · 1 injury

On [XXX], my 2023 Tesla Model 3 (VIN: [XXX] ) suddenly accelerated on its own and the brakes failed to respond despite repeated pressing. To avoid hitting other vehicles, I turned into a property driveway and struck a tree. The airbags deployed. This was a case of sudden unintended acceleration combined with complete brake failure, creating a serious safety hazard. Forward Collision Warning also did not prevent the impact. A police report was filed by the Dekalb County Police Department, GA, USA (Report #[XXX], Case #[XXX]), which specifically documented brake failure as the cause of the accident. The report also notes that the driver was injured by the airbag and that the vehicle had to be towed from the scene. A copy of the police report can be provided upon request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 30, 2024 · Brakes, Driver assistance · NJ · crash

Brake Feature Malfunction Vehicle Details: •Model: Tesla Model 3 •Year: 2023 (approximately 1 year old) •Mileage at Incident: ~11,000 miles Incident Description: On 10/29, while manually driving my Tesla Model 3 on a public roadway, I experienced a critical braking failure. As I approached a vehicle in front of me that was decelerating, I initiated regenerative braking, then immediately applied the brake pedal forcefully. Despite pressing the brake pedal hard multiple times, the vehicle did not decelerate as expected and ultimately collided with the vehicle ahead. Throughout this incident, no collision warning, automatic braking, or other safety features activated, despite having all safety features enabled. This failure significantly impacted my confidence in the vehicle’s braking and safety systems. After the accident, I reviewed the Tesla incident report, which shows I attempted to brake but that acceleration was not reduced until the collision occurred. Despite the report documenting my attempts to brake, the system did not function properly, suggesting a potential mechanical or software defect in the braking and/or safety alert systems. Aftermath: •My vehicle sustained considerable damage. •I now feel unsafe driving the vehicle, particularly on highways, as I am concerned the brake failure could recur. Request for Investigation: Given the severity of this issue, I am seeking an investigation to determine: 1.Whether there is a defect in Tesla Model 3 braking systems that could result in brake failure under normal driving conditions. 2.If there is an issue with the vehicle’s safety features failing to activate appropriately. This incident has raised significant concerns regarding my safety and that of other drivers, especially given the car’s relatively new condition and low mileage. I would appreciate a prompt investigation into these safety concerns.

Filed Jul 10, 2024 · Airbags, Brakes · DE · crash

The components that failed or malfunctioned include the braking system, steering system, and the airbag deployment mechanism. These critical systems experienced sudden and unexpected failures. Yes, the vehicle and its components are available for inspection upon request. -The sudden brake failure and steering wheel lock resulted in a complete loss of control over the vehicle. The inability to stop or steer the car properly led to it veering over the curb/grass area, posing a severe risk of collision. Additionally, the failure of the airbags to deploy during the impact further compromised my safety. This incident not only endangered my life but also posed a significant threat to the safety of other road users on Highway I676. -At this time, the problem has not been reproduced or confirmed by a dealer or independent service center. Further investigation and inspection are necessary to determine the root cause of these critical system failures. -There were no warning lamps, messages, or other symptoms indicating any issues with the braking system, steering system, or airbags prior to the sudden failure. The malfunction occurred without any prior warning, which exacerbates the concern regarding the vehicle’s safety systems.

Filed Feb 17, 2024 · Brakes, Driver assistance · NC · crash

As I was approaching my off ramp (which has a very tight turn), my automatic brakes failed which caused me to slam onto the brakes, and skid into one of the off ramp signs. All 3 of my children were in the back, the back driver side window shattered, I lost my driver side mirror, and there was damage done to the back door and wheel well (all on the driver's side). Although the damage looked minimal, no one was willing to work on the vehicle and I was strongly encouraged by my insurance company to claim it as a total loss. Granted, I had this vehicle for approximately 2 months, and had put at least $4,000 into it.