Vehicle Speed Control Problems of Tesla Model Y - part 1

On October 7, 2026, at approximately 1:18 pm pacific time in los angeles county, California, my Tesla Model Y collided with a stationary metal post/barrier while operating under full self-driving (supervised). Fsd was controlling the vehicle during a low-speed maneuver. The vehicle moved forward and struck the stationary obstacle. I did not intentionally press the accelerator, apply the brakes, or override the steering before impact. I applied the brakes only after the collision. This was not a collision caused by my manually steering or accelerating the vehicle into the obstacle. I have preserved the original Tesla-recorded accident video, which displays the blue "self-driving" indicator during the relevant maneuver. Tesla's official vehicle data also records: 13:17:50. 255 - active_fsd 13:18:17. 661 - significant acceleration anomaly, approximately -7. 29 m/s², consistent with a possible impact 13:18:18. 268 - driver_applying_brakes 13:18:18. 285 - fsd state unavailable the suspected impact event occurred approximately 0. 607 seconds before the recorded manual braking event. This supports my account that I braked in response to the collision, not before it. I am concerned that fsd failed to avoid a stationary obstacle while controlling the vehicle. I request that NHTSA investigate fsd obstacle detection, path planning, steering, propulsion and braking behavior, and whether adequate collision warnings were provided. I request preservation and examination of Tesla's complete fsd logs and an assessment of whether the automated system contributed to this collision. I dispute any assumption that this incident was caused solely by manual driver operation. I have the original video, Tesla csv data and damage photographs available as evidence.

While driving on colorado state highways with traffic-aware cruise control (and/or autopilot) engaged, the vehicle repeatedly and unexpectedly decelerates rapidly from highway speeds of 75–80 mph down to approximately 45 mph. This occurs with no vehicles, obstacles, or other hazards visible ahead that would justify the slowdown. The deceleration is abrupt and feels aggressive. It has happened on multiple occasions during normal highway driving. I am forced to immediately override the system by pressing the accelerator to regain speed and avoid creating a hazard for traffic behind me. The issue occurs even in clear conditions with good visibility. This sudden braking creates a significant safety risk of being rear-ended by other drivers who are not expecting a vehicle to drop 30+ mph without warning. I have experienced this repeatedly and am concerned it is a safety defect with the vehicle’s cruise control / driver-assistance system. The problem occurs specifically when cruise control is active and does not appear to happen in the same way when I am fully controlling the throttle manually.

The speed recognition of Tesla full self drive is unsafe in its present form. The speed recognition is very inaccurate. While driving on an interstate highway where the speed limit is 70mph, it is recognizing a route sign with a much lower number as a speed limit sign and suddenly applying braking, causing me to nearly be rear ended on multiple occasions. Every time I pass this sign I have to either disengage full self drive, or I have to override it to keep from being rear ended. The same thing happens on another highway, where the exit ramp has construction going on. When you are on the main road, it recognizes the exit ramp construction speed limit and tries to reduce you from 65 to 35. This problem has been reported to the manufacturer with no response other than "it is being forwarded on to the appropriate team for review".

On September 23, 2026, the vehicle was being driven at low speed when the driver experienced sudden and unexpected acceleration. The vehicle rapidly accelerated and a collision occurred. The driver reports that she did not intentionally accelerate the vehicle to this degree. Vehicle data and the event data recorder (edr) were subsequently obtained. The data records the vehicle accelerating from approximately 0 mph to approximately 35 mph in about four seconds, with the recorded accelerator-pedal-position signal reaching 100%. The edr does not record brake application before the first crash trigger. Vehicle data records driver brake application shortly after the initial crash trigger, including abs activity. The cause of the accelerator-pedal-position signal is unknown. It has not been determined whether the recorded signal resulted from driver pedal application, the accelerator pedal/sensor system, or another vehicle system. I am reporting this because of the sudden acceleration and severity of the resulting collision and would like the incident reviewed as a potential vehicle safety issue. The edr also indicates that airbag and seat-belt pretensioner deployment was not commanded during either of the two recorded crash events. Given the severity of the collision, I am also reporting the lack of airbag deployment as a safety concern. I do not know whether the collision met the applicable deployment thresholds. The vehicle is available for inspection. The edr report and complete raw vehicle-data csv have been preserved. There were no known warning messages indicating an accelerator problem before the incident.

See all problems of the 2021 Tesla Model Y 🔎.

While cruising under cruise control in a 55 mph zone, the car drops (reproducibly) to 30 mph for absolutely no reason.

See all problems of the 2024 Tesla Model Y 🔎.

1. I was using Tesla self driving standard on my vehicle it accelerated up to 19 miles over the recorded speed limit. 2. The speed limit was 55 and it went to 74 way to high and no way to lower it manually 3. Confirmation by the MD state police radar 4. No inspection 5. There was no warnings. Consumers should be able to set the maximum speed desired or lower it if it goes to high manually, but you can't if you are using self driving options. You can go to chill which is the next level down but that is to slow. Consumers should be able to manual put the speed where they want to drive and feel safe. I was between two cars in the right lane driving down the highway. I believe my vehicle was keeping up with the flow of traffic but no way to slow it down unless I went out of standard self drive. Chill is the one below standard and that is to slow.

When engaging fsd, you can’t see the safety distance between you and the car in front of you for defensive driving. Even if you are supervising fsd at high speed on the freeway, the high speed and sudden possibility of fsd disengaging is dangerous. The fsd mode should allow for safe distance between you and vehicle in front to be set manually and if it can’t be set manually, it shouldn’t be allowed to following too closely to the front vehicle. It’s unfair and absolutely dangerous to all should the fsd disengage and the driver doesn’t have time to react even though we are responsibly supervising. This feature needs mitigation.

See all problems of the 2022 Tesla Model Y 🔎.

Tesla cruise control removed the speed limit functionality as part of its cruise control. I cannot set a maximum speed for the car. Nor can I set a minimum speed for the car. Tesla removed these features through a software update with their autopilot v14. I believe the vehicle is unsafe for myself and others as it does not allow me to set the speed using traffic-aware cruise control (tacc). Tesla is intentionally removing this feature.

See all problems of the 2023 Tesla Model Y 🔎.

While using Tesla full self-driving (supervised), my vehicle approached an intersection and came to a complete stop at a red traffic light. The vehicle remained fully stopped while the traffic signal was still red. Without any accelerator input from me, the vehicle unexpectedly began moving forward toward the intersection while the traffic light was still red. I did not press or touch the accelerator at any point during this event. As soon as I realized that the vehicle was moving forward against the red light, I immediately applied the brake to stop the vehicle and then immediately reversed to move back to a safe position. My intervention was necessary to prevent the vehicle from entering the intersection and potentially colliding with cross traffic. There was no collision and no physical injury. However, the unexpected movement created an immediate and serious risk of a collision. My pregnant wife was in the passenger seat at the time of the incident. Full self-driving (supervised) was engaged throughout the event. I have preserved the original Tesla dashcam footage documenting the incident, including the red traffic signal, the vehicle coming to a complete stop, the unexpected forward movement while the signal remained red, and my immediate braking and subsequent reversal. I am reporting this incident because the vehicle unexpectedly proceeded toward an intersection against a red traffic signal while full self-driving (supervised) was engaged, requiring immediate driver intervention to avoid a potential collision.

Tesla full self driving(fsd) supervised system had a critical failure. On 9/11/2026 Tesla fsd software version 14. 3. 9 was fully engaged and operating. Speed was 55 mph. Entering a school speed zone flashing yellow lights required a speed of 20 mph maximum. Tesla failed to slow down. Safety of driver and citizens was put at risk. Tesla fsd continued into the school speed zone at 55 mph. Driver intervention was initiated inside the school speed zone to obtain the required 20 mph speed in a school speed zone. Weather was clear and pavement dry. Yellow light flashing light & scene visibility was unimpaired and excellent. . The car cameras were clean and dry. There were no warning lamps, symptoms or messages.

My Tesla Model Y fsd (full self driving mode) malfunctioned when it unintentionally accelerated and swerved dangerously to avoid what it concluded as potential collision with a merging truck. By the time the driver intervened the vehicle had made contact with road barricades damaging both passenger side front and back door and tire fenders. No warnings were issued. - component or system failed or malfunctioned - full self driving (fsd) - safety - fsd malfunctioned causing a crash.

My chat constantly phantom brakes. This is a constant issue, I ve had the car since it was new and almost everytime im in adaptive cruise control it randomly brakes. Today with nothing in front of my on 3 separate occasions it applies the brakes and forces me to accelerate to maintain speed.

While operating a 2022 Tesla Model Y with full self-driving (fsd supervised) engaged, the vehicle failed to execute a right merge onto the CA-280 north freeway ramp in redwood city, CA. Instead, fsd initiated an unexpected wrong-way maneuver down a downward off-ramp. As the vehicle headed toward a sharp left curve, it failed to decelerate sufficiently for the turn. The vehicle maintained speed on the downward incline and then accelerated slightly, traveling at around 30 mph immediately prior to impact. Facing an active hazard initiated by the software, I performed an emergency manual override. System steering resistance and abrupt load transfer mid-turn caused an immediate loss of control, driving the vehicle over a mound and into an off-road ditch. Airbags deployed upon impact, and occupants (including a 5-month-old infant) were transported to the emergency room for evaluation. A formal safety complaint is being filed regarding fsd wrong-way navigation failures, failure to decelerate, and severe handling/disengagement instability during emergency takeover scenarios.

Phantom braking while using the tacc on the Tesla.

While exiting a drive-thru, I pressed the accelerator and the vehicle unexpectedly accelerated at a high rate of speed on its own. I attempted to brake, but the brakes did not respond. The vehicle struck a concrete median. Police report on file: east hanover township pd, case #2026-12503.

The contact owns a 2026 Tesla Model Y. While the vehicle was parked and attempting to shift into drive(d), the brake pedal was depressed, and the driver attempted to select the gear, but the gear display icon appeared semi-transparent. The driver was able to select the intended gear after several attempts; however, upon depressing the accelerator pedal, the vehicle unintentionally accelerated at a higher speed and struck a tree. The air bags did not deploy. No injuries were reported, and a police report was not filed. No warning light was illuminated before or after the crash. Full self-driving (fsd) mode was not activated during the failure. The vehicle was driven to a collision repair center to repair the damage. The contact notified the manufacturer of the failure and requested assistance retrieving data from the event data recorder (edr); however, no assistance was provided. The vehicle was not diagnosed or repaired for the unintended acceleration. The failure mileage was approximately 2,000.

I was operating my Tesla using full self-driving (supervised) when the vehicle approached an active school zone with flashing warning lights and a posted school-zone speed limit of 35 mph. Fsd did not appropriately respond to the active school zone or reduce the vehicle's speed to the posted 35 mph limit, requiring me to disengage fsd and manually slow the vehicle. The incident was captured on the Tesla dashcam. The recording shows fsd active while approaching the school zone. At approximately 14 seconds into the recording, the vehicle was traveling approximately 52 mph with "self-driving" displayed while the flashing school-zone warning and school pavement markings were visible ahead. The posted school-zone speed limit is 35 mph when the warning lights are flashing. Because fsd was not slowing the vehicle appropriately, I intervened and disengaged fsd. Immediately following my intervention, vehicle speed decreased from approximately 49 mph to 39 mph, 31 mph, and approximately 29 mph as I manually slowed the vehicle. This was the second time I experienced fsd failing to appropriately respond to this same active school zone. After this occurrence, I saved the dashcam recording and submitted a bug report through the vehicle. There were no warning messages indicating that fsd could not recognize or respond to the school zone. My safety concern is that fsd may proceed into an active school zone substantially above the posted school-zone speed limit unless the driver recognizes the failure and intervenes. The original dashcam recording is available and documents the vehicle speed, fsd status, active flashing school-zone warning, posted speed limit, and timing of my intervention.

I own a 2021 Tesla Model Y with an hw3 car computer. At approximately 54,000 miles, the vehicle developed intermittent failures of the cameras, gps/navigation, and cruise control. On two occasions during the same routine drive, about 40 minutes into the trip, the gps, cameras, and cruise control abruptly stopped functioning at approximately the same location. The first occurrence was about July 7, 2026 at 9:15 am and the second August 7, 2026 at about 3:15 pm. I made the same trip once between these events without a failure. I had also previously experienced a frightening incident while driving northbound on I-280 approaching the lane division for 19th avenue in san francisco using autopilot. Where my lane widened and a new lane began, the vehicle abruptly attempted to follow the new lane to the right. I had to intervene firmly with the steering wheel to maintain control. I do not know whether this event was related to the later diagnosed computer failure, but report it because of its possible safety significance. Tesla serviced the vehicle in sunnyvale on August 16, 2026 at 54,565 miles. Tesla's invoice states: “technician addressed the intermittent loss of gps, cameras, and cruise control. The car computer had board-side failures and was replaced. ” Tesla replaced the hw3 computer with a hardware 3. 2 computer, part 1775000-s0-l. Tesla also found corrosion at the 12v input and replaced the 12v battery. My concern is that the hw3 computer failure was intermittent and simultaneously affected cameras, gps/navigation, and cruise control. The vehicle operated normally between failures, so a driver could not know when the problem might recur. I ask NHTSA to determine whether similar hw3 computer failures are occurring in other 2021 Model Y vehicles.

Separately, the system could not hold a consistent speed on open highway with no vehicle ahead. It would surge from a set 70 mph to roughly 72-73 mph and then drop back, repeatedly, producing a pulsing acceleration and deceleration. The system also hesitated frequently and issued repeated audible alerts without an identifiable hazard present. I previously filed a complaint regarding phantom braking on this same vehicle (odi number 11450326, filed February 4, 2022), which described nearly identical behavior triggered by trucks on the same georgia-to-new jersey route. That complaint concerned fsd/autopilot software from 2022. The behavior described here occurs on Tesla’s current v14 lite software released to hardware 3 vehicles in July 2026. The defect has persisted across more than four years and multiple software generations. Unexpected hard braking at highway speed with no hazard present creates a rear-end collision risk to my vehicle and to following traffic.

The full self driving software does not allow the user to limit the maximum speed of the vehicle while in use. The car frequently drives 15-20 mph over the actual limits in typical driving modes with no ability for the user to safely and precisely restrict its speed to a more safe and appropriate level. The car may begin a journey at an appropriate speed, and continue at that speed for miles, but for no reason that is apparent to the user, the system may begin to accelerate beyond a safe limit. This makes the driving experience while using this software less predictable and compromises the safety of the user and others on the road. The user controlled speed limiting feature was previously available, and worked well, but was removed as part of an update to version 14. X of the software. An alternative that is being used, which is much less safe, is that users can restrict the speed of the entire vehicle such that its speed may never pass a certain level, under any circumstance, even if the accelerator is fully depressed (by the user). Once enabled, this feature cannot be adjusted or disabled while driving. Users are using this vehicle speed restriction feature to more precisely restrict the excessive and unpredictable speeding of the automated system because they are not given the ability to do so safely and precisely via other means.

See all problems of the 2025 Tesla Model Y 🔎.

Component/system that failed: the service brakes failed to stop the vehicle. While reverse-parking at low (parking) speed, I applied the brake pedal and the vehicle did not stop as expected, resulting in contact with an object and vehicle damage. The vehicle is available for inspection upon request; it has been preserved and driven only minimally since the event. How safety was put at risk: the brakes failed with no warning. Had a person been behind the vehicle, the failure to stop could have caused injury. This is the only vehicle for a family with three children who are regularly transported in it, and I no longer feel safe driving them. Reproduced/confirmed by a dealer or service center: not yet. Inspected by manufacturer/police/insurance/others: the insurer opened and then denied the claim and stated that no vehicle telemetry/data was available to preserve. No independent forensic inspection has occurred yet. Police did not attend. Warning lamps/messages/symptoms prior to failure: none. There was no warning light, no alert message, and no audible signal before or during the event. The parking sensors did not beep as they normally do. No abs or brake warning light appeared at any time before or after. Additional relevant detail: approximately one week earlier, the front lower control arms were replaced. It is unknown whether the abs wheel-speed sensor or related wiring was affected; the vehicle displayed no related warning at any time. No injuries occurred.

Tesla took off from a parking lot and was uncontrollable, went through the grass, crossed the street and construction before hitting the barricades and fell into a sewer as the road ended there. There were 2 passengers in the car and luckily both passengers came unharmed. But fsd needs to be investigated on why this happened.

Tesla's fsd system has zero opportunity for the driver to adjust what the car believes is the speed limit. My car often has no idea what the speed limit is. More often than not, it believes the speed limit is lower than it actually is, by as much as 30 mph. This causes the car to impede traffic if I do not intervene. I can press and hold the accelerator to force the car to drive the speed limit, however I am then faced with a warning that the car will not automatically brake in an emergency. I run my car in "sloth" or "chill" 99% of the time to prevent speeding (something you should actually enforce), and this is really where the issue becomes somewhat problematic. If I'm on a 55 mph road driving 55-57 and the car suddenly decides the speed limit is 30, in sloth, it will decelerate aggressively, making people behind me think I'm nuts. . . Could potentially be dangerous. Recently I was on a "new" road into a campground, a couple days after school ended and there were children around, the speed limit on the road is posted at 20. . . The car said [xxx], and proceeded to accelerate aggressively of course I terminated the fsd session and just drove the car myself. But no matter which way it is, it's insane that I cannot adjust the speed limit to whatever the speed limit actually is. I own this car, and I pay for fsd for one reason, I'm getting older [xxx], and my driving skills and reflexes are not what they used to be. I'm spending my money to increase safety. . . Please insist that Tesla allow us to adjust the speed limit, or provide a way to get them to do it in a timely manner. I report these situations to Tesla often. . . Not once have they adjusted whatever they use in the background. . . Same problems on the same roads over and over and over, day after day. Please force them to do the right thing! information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

June 30, I was driving an highway, PA 376 during a rain storm, fsd 60 mph 4-5 pm. The rain was heavy, vehicles in front of me flashing their emergency lights, I attempted several times to slow down, acceleration modes, towards me. Vehicle would not slow down, heavy rain and puddles blurred my vision, thinking I would rear end the vehicle in front of me. Traffic was light due to the rain, fsd needs better software to slow down during weather conditions.

The contact owns a 2024 Tesla Model Y. The contact stated that while driving 25 mph and making a right turn into an alley with another vehicle approaching, the contact stopped to reverse; however, while using the tap feature, the vehicle unintendedly accelerated and crashed into a concrete barrier twice. The vehicle was uncontrollable. The contact stated that the air bags failed to deploy. The crash was not captured on the camera inside the vehicle. A police report was filed. There was no injury reported. The vehicle was towed to a towing lot and was next towed to the local dealer but was not yet diagnosed or repaired. The manufacturer was not contacted. The approximate failure mileage was 14,000.

• fsd received a software update earlier this same morning. • while navigating a parking garage under fsd, the vehicle initiated an unprompted reverse maneuver. • the reversal happened with no warning and no meaningful time for driver intervention before impact. • the vehicle struck a structural beam, causing damage to the vehicle above the rear driver side door, as well as shattering and causing splintering of the roof glass.

I was using the Tesla fsd in stop and go traffic. At the moment I was moving with traffic at about 30 mph and then traffic started slowing down. The vehicle in front of me came to a complete stop. The fsd on my car started slowing down, but not fast enough. It rear-ended the vehicle at about 18 mph.

I am submitting this complaint to request an investigation into a serious safety defect involving my Tesla vehicle. On multiple occasions, the vehicle has experienced a significant and unexpected loss of acceleration when I attempted to enter or cross intersections. Despite pressing the accelerator, the vehicle failed to respond as expected, leaving me unable to accelerate normally while entering active traffic. This is not a minor hesitation or inconvenience. It is a serious roadway safety hazard. Drivers rely on immediate acceleration when crossing intersections, turning across traffic, or merging. A vehicle that unexpectedly limits acceleration can place occupants directly in the path of oncoming vehicles, creating a substantial risk of a severe collision, serious injury, or death. I reported this issue to Tesla service and provided multiple timestamps documenting the events. Tesla was unable to identify any fault codes or provide a diagnosis and indicated that because no fault was recorded, the issue could not be confirmed. Through independent research, I found numerous reports from other Tesla owners describing substantially similar acceleration limitation events. Many reports specifically reference obstacle aware acceleration as a possible cause, and some owners report that disabling the feature resolved the issue. If a safety system can falsely detect an obstacle and reduce acceleration while a driver is actively entering an intersection, the system itself may create a greater danger than the one it is designed to prevent. I respectfully request that NHTSA investigate whether Tesla vehicles are experiencing unexpected acceleration limitation or torque reduction during intersection entry and traffic merging situations, evaluate the role of obstacle aware acceleration and related software systems, determine whether a broader pattern exists, and assess whether corrective action or a recall is warranted. This could cause serious injury or fatal crash.

On xxx at approximately 9:30am, my 2026 Tesla Model Y suddenly accelerated without driver input while parking at the center at [xxx], [xxx]. Vehicle surged forward unexpectedly. I immediately applied brakes. No warning messages appeared before or during the incident. Vehicle struck parking lot curb. Police responded and vehicle was towed. Physical evidence including tire drag marks and vehicle debris remain at scene. Requesting full edr data log preservation. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Component/issue description: following a recent over-the-air (ota) software update to the vehicle's full self-driving system, a dangerous user interface defect was introduced. Immediately upon an fsd disengagement—the critical transition window where the operator must resume manual driving control—the center touchscreen populates a mandatory, invasive feedback popup menu. This menu causes a severe driver distraction and creates an immediate safety hazard. The popup blocks vital driving visualizations and navigation data on the screen at a high-stress moment. Furthermore, the ui creates a functional touchscreen lockout, demanding manual and visual interaction from the driver to clear the box while the vehicle is actively in motion. Forcing a driver to divert their eyes from the roadway to navigate a touchscreen menu immediately following a system intervention creates an unreasonable and systemic risk of collision. The manufacturer has provided no setting to disable this dangerous distraction.

On 05/31/2026, while Tesla full self-driving (fsd) was actively engaged, the vehicle was taking the la brea avenue entrance ramp onto the I-10 freeway in los angeles, CA. Fsd suddenly accelerated aggressively and the vehicle drifted hard to the left without any driver steering input. The driver was forced to hit the brakes and manually override steering to prevent a serious accident. The behavior felt like a system glitch. Both driver-side wheels sustained severe impact damage and are confirmed cracked. Tesla service center confirmed the damage in writing on 06/08/2026 and quoted $2,325. 74 in repairs. This dangerous fsd behavior matches the pattern currently under active NHTSA engineering analysis.

I was driving my Tesla in self drive mode, and ibecause it started raining. I reduce the speed to standard. I had a notification on the screen, an alert in red. That the Tesla reached the maximum speed in that mode “standard”. I was surprised and decided ti canceled the fsd feature and took control of the vehicle. Then when I was driving in the expressway very close to my exit on the right lane, the car accelerated by itself and turn to the left unexpectedly. I tried to returned the car to my lane and I never had control again of the car. Not the steering wheel, not the breaks responded. I was spinning on the expressway until I hit the concrete barrier with the rear bumper. Hopefully I did not hit any car nor they didn’t hit me. The car shutdown after the impact. Tesla sent me the footage of the impact, ignoring the moment that caused that incident that was some seconds before. The brakes were automatically turned onz and the wheels did not move. I know something wrong happened. Specially because the incident some minutes before when I was driving in standard mode and accelerated with no reasons. I have safety concerns. Also I noticed that after the last upgrades the car was havung navigation issues that I reported immediately when the autopilot was removed and we have to select the options.

Adaptive cruise control slams on the brakes at highway speed alleging “curvature assist” on flat, straight roads. Dealer replaced firmware and problem persists. Defect appears to be inherent to adaptive cruise control.

On Saturday 16th oct 2026 around 10 am est, while driving down the ramp from parking floor 2 to parking floor 1 in the jfk terminal 4 short term parking garage (john f. Kennedy International airport, new york), the Tesla vehicle suddenly accelerated forward very fast on its own without any input on the accelerator pedal. Either I was not pressing the gas pedal at the time, or I was slowing pressing as the car was going down on ramp. The car surged ahead with significant force and struck a fence at the bottom/end of the ramp area. There were two passengers in the vehicle. No other vehicles were involved. The impact caused: my Tesla Model Y to sustain severe front-end damage and appear to be a total loss. Injuries to both passengers. Minor scratches on my hands. Sequence of events: I was driving the vehicle at low speed down the ramp from parking level 2 to level 1 in jfk terminal 4 short term parking. Without pressing the accelerator, the car unexpectedly accelerated. Braking did not prevent the impact. The vehicle came to a stop only after hitting the fence. Today, I have reported this as a sudden/unintended acceleration event to Tesla and requested a full vehicle data log review. I would like Tesla to investigate following. 1. Why the car suddenly accelerated on very speed? 2. Why the steering got locked when it happened? 3. Since it is the closed parking lot, why Tesla did not stop automatically before hitting fence? I have been driving for more than 27 years, I never had any accident, and I never got any tickets in last 27 years.

Update to previous complaint – reference number: [11738920] VIN: [xxx] case: Tesla [xxx] update to my previous NHTSA complaint regarding sudden unintended acceleration in my Tesla Model Y (VIN: [xxx] ) I previously reported a sudden acceleration incident on [xxx], at [xxx] 4 parking garage ramp. Tesla has now provided the vehicle data report and edr data (case # [xxx]). The data shows accelerator pedal position increasing to 100%, with brake input occurring late. However, I am 100% certain that I did not press the accelerator pedal at any time. I have a clean driving record of over 27 years. This discrepancy between the logged data and actual driver input strongly suggests a potential safety defect in the accelerator pedal sensor system (both redundant sensors), drive-by-wire system, or brake override / automatic emergency braking functionality. Attachments included with this update: Tesla vehicle data report (vdr) Tesla edr report high-resolution photos of vehicle damage and airbag deployment I request that NHTSA review this additional technical information as part of their evaluation for a possible safety defect investigation. Btw, it is really difficult to contact Tesla to report such incidents. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).