2025 Tesla Model 3 acceleration problems

Filed Jul 1, 2026 · Acceleration, Driver assistance · CA

Tesla Full Self-Driving (Supervised) repeatedly ignored the “Avoid Toll Roads” navigation setting and attempted last-second lane changes into Express Toll Lanes at freeway speeds. This has occurred approximately 10 times. I was repeatedly forced to take over steering immediately to avoid entering the toll lane, creating a serious safety risk due to sudden maneuvers in heavy traffic. On several occasions, I could not safely intervene before the lane change was completed. Tesla Service Center inspected the vehicle, found no hardware or camera faults, and stated the behavior appears to be software-related.

Filed Nov 2, 2025 · Acceleration, Driver assistance · OK

I love my vehicle and its technology. However after installation of the latest (FSD V14) update, I observed issues I believe pose a risk to the safe operation of the vehicle. I have made dozens of reports for 30+ days to Tesla for these issues. 1. Driving Profiles and Speed The update features multiple driving profiles (e.g., "Sloth", "Chill", "Standard", and Mad Max). Only the "Sloth" profile drives at the “speed limit” (what their outdated map thinks speed limit is). All other profiles drive over the posted speed limit (sometimes significantly). The ability to manually adjust the speed limit setting has been removed or disabled in these profiles. Once the vehicle is in a profile, the system stays in its own selected speed. This behavior prevents the driver from easily controlling the maximum speed when using the system, undermining driver-intent. 2. Incorrect or Outdated Speed Limit Data The vehicle frequently displays incorrect speed limits: for example, school zones, reduced speed zones, temporary speed changes, work zones, and even a busy high way I drive everyday that’s been changed for 3 months now, are often not recognized or updated in the system. On several occasions over the past months, the system continued to use an outdated or incorrect posted speed, despite the road clearly being a lower limit. Because the system uses the erroneous speed data as the basis for its automated driving decision (and without manual override of speed in FSD), this situation increases risk-especially in areas where lower speed limits are enforced for safety (pedestrian zones, near schools). 3. Safety Risk Description The lack of manual speed adjustment under autonomous mode means the driver has less control over vehicle speed when using FSD, reducing the driver's ability to mitigate risk in a dynamic environment. I’m asking for Tesla to either make sure they have constant real time speed limit data, or allow again for manual speed adjusts when in FSD.

Filed Oct 27, 2025 · Acceleration, Driver assistance · MO

After upgrading to FSD (sull self driving supervised) v14, The speed limit function HAS BEEN REMOVED. THERE IS NO WAY TO SET A MAX SPEED FOR CRUISE CONTROL. THE CAR SPEEDS UNSAFELY AT ALL TIMES WHILE IN FSD. THERE IS NO WAY TO CONTROL HOW FAST THE CAR CAN GO. It just "thinks" what speed is best. It constantly speeds 7-10 over in every setting above "SLOTH". SLOTH setting still DOES NOT have a speed limit setting. THIS IS VERY DANGEROUS. THERE IS NO EXCUSE FOR NOT HAVING A MAX SPEED SETTING.

Filed Oct 23, 2025 · Acceleration, Driver assistance · NC

In the New Tesla update to Full Self Drive they removed the ability to adjust the speed control while using FSD yet state "Note: You are responsible for the speed and control of your vehicle at all times, whether FSD (Supervised) is enabled or not."

Filed Sep 30, 2025 · Acceleration, Driver assistance · AL

I want to add an update to my previous report # 11690629. I think it would be helpful to provide what the Max Speed should be based on my input. So, I will just resubmit the previous report with some additional information. On December 31, 2024, I purchased a new Tesla Model 3 Long Range with Full Self-Driving (FSD). The problem is the car goes faster than it should when Full Self-Driving is activated. I have attached an example photo of the Tesla screen taken while the car is being controlled by FSD. It shows the actual speed limit of the road is 35 MPH, and the car is traveling at a steady speed of 51 MPH. It also shows a “Max Speed” of 64 MPH which means the car may travel that fast on this road if it chooses to. Since I use an Offset of 10%, the Max Speed in this 35 zone should be 39 MPH. However, the car increased it to 64 MPH, and I certainly did not use the right scroll wheel to increase it. This is clearly a safety issue which can lead to accidents. Tesla has made 5 attempts to fix this without success. On the last attempt (September 24, 2025), they refused to answer my questions such as: Why does the Max Speed suddenly change to a value much higher than my specification? They simply stated that the system was operating as designed. Really? It’s design to drive 51 MPH in a 35 MPH zone? Furthermore, they went on to say I should disengage the FSD system or intervene manually if I believe the car is operating in an unsafe manner. One reason I purchased this car was for FSD. I would expect them to fix it rather than my having to abandon this feature that I pay for. I hope you will encourage Tesla to fix this issue before there are any more FSD-related accidents.

Filed Sep 30, 2025 · Acceleration, Driver assistance · AL

On December 31, 2024, I purchased a new Tesla Model 3 Long Range with Full Self-Driving (FSD). The problem is the car goes faster than it should when Full Self-Driving is activated. I have attached an example photo of the Tesla screen taken while the car is being controlled by FSD. It shows that the speed limit of the road is 35 MPH, and the car is traveling at a steady speed of 51 MPH. It also shows a “Max Speed” of 64 MPH which means the car may travel that fast on this road if it chooses to. This is clearly a safety issue which can lead to accidents. Tesla has made 5 attempts to fix this without success. On the last attempt (September 24, 2025), they refused to answer my questions such as: Why does the Max Speed suddenly change to a value much higher than my specification? They simply stated that the system was operating as designed. Really? It’s design to drive 51 MPH in a 35 MPH zone? Furthermore, they went on to say I should disengage the FSD system or intervene manually if I believe the car is operating in an unsafe manner. One reason I purchased this car was for FSD. I would expect them to fix it rather than my having to abandon this feature that I pay for. I hope you will encourage Tesla to fix this issue before there are any more FSD-related accidents.

Filed Sep 11, 2025 · Acceleration, Brakes · TX · crash · 1 injury

On September 7, 2025 at ~7:53 PM, my 2025 Tesla Model 3 operating with Full Self-Driving (FSD) engaged performed an aggressive, uncommanded turn while under computer control. The maneuver occurred so abruptly that I could not safely override steering before impact, and a crash resulted. The Tesla app Trip View for Trip 3 (7:34–7:53 PM) shows “Vehicle on FSD” for 18 min 54 sec and records an “Aggressive Turning” event at 7:53 PM (2.0 sec) immediately before the trip ended (screenshot attached). This reflects a steering/driver-assist control defect in FSD’s turning behavior and a failure of collision-mitigation to prevent the crash. I sustained bodily injuries and the vehicle incurred significant damage. I request that this incident be treated as a safety-critical malfunction warranting investigation and corrective action.

Filed Aug 28, 2025 · Acceleration, Electrical · CA

On [XXX], at just 9,526 miles, my brand-new 2025 Tesla Model 3 (VIN: [XXX] ) suffered a front motor/inverter failure. The vehicle displayed the warning “Front Motor Disabled.” Tesla Vallejo Service confirmed this and replaced the front drive inverter (3DU). A catastrophic drivetrain failure at under 10,000 miles is unacceptable and raises serious concerns about reliability and safety. It still doesn't not accelerate as before. In addition, since delivery on [XXX], this vehicle has had persistent rattling and vibration issues in the cabin. I have returned to Tesla Vallejo multiple times (April, June, July, and August 2025). Each time, the service manager, Steve McNerney, dismissed or minimized my concerns, blaming “seatbelt rattling” or claiming the issue could not be replicated. After July, I even sent three separate videos clearly documenting the noise, yet the most recent service invoice still instructed me to “provide a video,” showing Tesla ignored or failed to record my evidence. This ongoing defect has been reproduced and confirmed at Tesla service but remains unresolved. Tesla’s dismissive handling and failure to fix the defects create both safety risks and loss of confidence in the vehicle. A front motor failure while driving could result in loss of power, reduced acceleration, or unsafe driving conditions. Tesla has failed to provide a reliable or safe resolution despite repeated repair attempts and clear evidence. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 19, 2025 · Acceleration, Steering · 9,840 miles · NH · crash · 1 injury

The contact owns a 2023 Tesla Model 3. The contact stated that while in reverse (R) and backing up at approximately 5 MPH down a slight incline, the vehicle accelerated inadvertently. The contact stated that she turned the steering wheel to the right to get on the road. The contact had taken her foot off the accelerator pedal when the vehicle gained momentum and drove backwards about 50 feet and crashed into a tree with the rear end. The contact stated that the passenger side rear bumper and an aftermarket trailer hitch were dented, crumpled, and bent. The contact stated that the rear windshield was cracked on the driver's side. The contact stated that the regenerative braking feature never engaged. The contact also stated the steering had locked, and she was unable to turn the steering wheel. The contact stated that there were no warning lights. The tree had stopped the vehicle, and the contact stated that she was unable to restart the vehicle. The contact stated her left eye had a bruise, and there were no other injuries. The police were called, but advised that since there were no serious injuries or other vehicles involved, there was no need to send an officer to the scene. The manufacturer was notified of the failure. The contact had the vehicle towed to a dealer. The vehicle was not diagnosed and was not repaired. The failure mileage was 9,840.

Filed Aug 4, 2025 · Acceleration, Driver assistance · MT

Had ACC set on 80 MPH on the hiway yesterday. A vehicle was passing me and the Tesla suddenly applied heavy brake pressure to the point of tires screeching. Speed dropped very quickly to about 50 MPH. I had not touched the brake pedal. Brakes released and speed resumed to 80 MPH. VERY SCARY and high risk of rear end collision. Lucky nobody was behind me. Don’t want to experience that again.