2023 Tesla Model 3 acceleration problems

Filed Sep 29, 2026 · Acceleration · SC

Tesla has done away with a set maximum speed control when on FSD and uses speed profiles. These profiles can have the car speed at huge differences from the actual speed limit. Tesla previously gave the driver the option to control the maximum speed but eliminated it with version 14 FSD software.

Filed Aug 27, 2026 · Acceleration, Brakes · GA

On XXX at around 3:30 PM EST, I was driving my 2023 Tesla Model 3 on [XXX] about 10 miles outside of [XXX]. I had the adaptive cruise control set at 75 mph. I was driving in the right lane of the two available lanes of travel in that direction. I noticed an unattended car on the right shoulder about a 1/4 mile up the road and continued my drive as normal. The car was at least 5' to 6' off the highway. As i got about 30 yards from the car, my car suddenly slammed on the brakes automatically, which forced me to react in a corrective manner. Thankfully there was nobody behind me or the severity of the braking would have likely caused a rear end collision. To my understanding, this phantom braking is a known issue with Teslas, so I wanted to document my experience to add to the record. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 4, 2026 · Acceleration, Driver assistance · IL

Whilst driving on highways which feature multiple speed limits - eg. 70 cars, 65 Trucks, 60 Buses. If full self driving more or when in adaptive cruise control - the car systems fail to recognize the restriction linked to the lower speed limits. As a result, you can be driving on Full Self Drive at 75mpm, the car sees a 65 followed by a 60 speed limit (neither applicable to cars), but the car brakes hard dropping the speed from 75 to 62 almost instantly and, on more than one occasion, a closely following car has almost collided with me. Until such time as the Tesla system can recognize the 'sub text' on a speed limit - the FSD and Adaptive cruise should not be certified. I also drive a BMW i4 and this reads all signs correctly, only applying those applicable to a car to the vehicle.

Filed Jun 20, 2026 · Acceleration, Driver assistance · GA

The vehicle was purchased pre-owned directly from Tesla. On the day of pickup and five days later, while operating on Full Self-Driving (FSD), the vehicle phantom-braked abruptly and then dangerously accelerated through a solid red light into cross-traffic intersections. The driver had to forcefully override the vehicle to prevent a crash. Tesla Service Center was notified but dismissed the issue, performing only a camera recalibration and charging a fee. Following the service appointment, the red-light running behavior stopped, but the vehicle continues to suffer from aggressive, sudden phantom braking multiple times on every single trip, creating a severe and continuous risk of a rear-end collision on public highways.

Filed Jun 8, 2026 · Acceleration, Brakes · NJ · crash · 1 injury

-I was driving down into an indoor basement level garage very slowly as there is a steep incline. It descends from street level to basement level within a distance of approximately 30 to 35 ft. At the end of the incline is a sharp curve to the right, followed by a sharp left turn to proceed straight. -While on the incline, the car was slowing to a stop. I gently tapped the accelerator to keep it moving. -The car suddenly lunged forward, rapidly accelerating. The acceleration was not consistent with the amount of accelerator input I applied. -I quickly steered right to avoid hitting the wall, then immediately steered left to avoid hitting parked cars and garage columns. -I braked as hard as possible, pumping it. The brake pedal was stiff. The car kept moving forward despite my efforts and did not stop until I crashed into a parked car at the end of the garage. -My son was in the front passenger seat. We both had seatbelts on. Other than whiplash, there were no major injuries. -There were no warnings, messages or any indications that a problem was present prior to the incident. -There was no one in the parked vehicle that was struck and no other people in the garage. -My cell phone automatically alerted emergency services. The police responded, and I reported the incident.

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 Oct 22, 2025 · Acceleration, Driver assistance · CA

On August 7th, 2025 at around 8 AM in the morning, my vehicles mobile phone car key was in-operable and I was unable to get in the car which led me to trouble shoot how to fix this issue with the car. Upon researching I was directed by Tesla to directly complete a soft reset of the vehicle holding down both buttons on the vehicle once I was inside, and pushing on the brake pedal. Upon completion, my vehicle booted up and I realized that all camera systems were down, my navigation systems were down, my safety features were down, my auto pilot, lane keeping assist and auto brake were down, sensors were down and I was no longer able to pre heat my battery to charge my vehicle due to issues with the navigation. I then took the vehicle to Tesla Service Center Irvine where a service advisor quoted me 2900 for a new ECU and Bolts and told me that I needed to replace my whole unit and that I was to cover the cost of the repair even though my vehicle is only 2 years of age and this failure is due to the quality control and software of the vehicle. I have been driving around a vehicle with absolutely no safety features whatsoever such as no cameras, sensors, auto braking, or full self driving due to this ECU failure and I fear for my safety and well being while driving this car.

Filed Oct 9, 2025 · Acceleration, Brakes · 66,000 miles · IL · crash

The contact owned a 2023 Tesla Model 3. The contact stated that while driving at an undisclosed speed on the third floor of a parking garage, the vehicle suddenly accelerated to full speed unintendedly, and the steering wheel and the brake pedal were inoperable, causing the contact to lose control of the vehicle. The vehicle crashed into a wall and crashed into the vehicle in front, and the vehicle stopped. No further information was available. No warning lights were illuminated. The front driver's side air bag deployed. The vehicle was towed to a tow lot and was deemed a total loss by the insurance company. A police report was filed. There was no injury sustained. The manufacturer was not notified of the failure. The failure mileage was 66,000.

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 Aug 29, 2025 · Acceleration, Airbags · MD · crash · 2 injuries

Vehicle Information: 2023 Tesla Model 3 VIN: [XXX] Incident Date: [XXX] Location: [XXX] Summary of the Problem: On [XXX], while Autopilot was active, my 2023 Tesla Model 3 suddenly accelerated without driver input. I was pressing the brake pedal, but the vehicle surged forward uncontrollably, struck a fence and a tree, and caused major property damage. Both I and my wife (passenger) required urgent care treatment after the crash. Details / Safety Defect Evidence: •Tesla’s own raw logs show the accelerator spiked to 100% immediately before impact. •Brake pressure was recorded prior to impact, proving the brake pedal was applied. •Despite this, Tesla’s official Vehicle Data Report falsely states “manual brake not applied.” •Autopilot did not disengage when the brake was pressed, contrary to Tesla’s design claims. •The vehicle logged a “Near-Deploy Collision” at ~27 mph, yet the airbags did not deploy. Why This Is a Safety Defect: This incident reflects multiple critical failures: 1.Sudden unintended acceleration. 2.Failure of brake-override safety design. 3.Airbag non-deployment in a crash severe enough to trigger “Near-Deploy.” 4.Inaccurate Tesla reporting that conceals braking input. This defect created an extremely dangerous situation that could easily have resulted in fatalities. I am requesting the federal safety agency investigate Tesla vehicles for unintended acceleration, brake override failure, and airbag non-deployment. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)