2023 Tesla Model 3

The Office of Defects Investigation (ODI) has received 156 complaints alleging a suspension failure in model year (MY) 2018-2020 Model 3 and MY 2021-2023 Model Y vehicles. The suspension failure involves the detachment of the front lower lateral link, which potentially causes a loss of vehicle directional control. In most cases, there was no advance warning or indication that the suspension failure would occur.  Some cases cite noises occurring prior to failure, but note that the vehicle provides no visual warnings. Once the failure occurs, the vehicle may not be drivable, thus requiring a tow. Tesla has previously recalled vehicles for lateral link detachments through two recalls. Recall 21V-835 addressed 2,791 MY2019-2021 Tesla Model 3 vehicles due to a production issue. Recall 23V-235 addressed 422 2018-2019 Tesla Model 3 vehicles that had experienced similar failures to those recalled under 21V-835. The subject failures for this investigation exceed the scope of these recalls and do not appear to be related to the production issue that prompted those recalls. ODI is opening this Preliminary Evaluation to determine the underlying cause, scope, and severity of the potential problem and to fully assess the potential safety-related issues. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

The Office of Defects Investigation (ODI) is opening this Engineering Analysis to evaluate Tesla’s Full Self Driving Beta and Full Self Driving (Supervised) (collectively, FSD) degradation detection system. The focus of this investigation will be to assess the system’s ability, when encountering reduced roadway visibility conditions, to detect degradation and alert the driver with sufficient time to respond. ODI will evaluate the performance of FSD in degraded roadway conditions and the updates or modifications by Tesla to the degradation detection system, including the timing, purpose, and capabilities of the updates, and Tesla’s assessment of their safety impact. Tesla’s FSD is an advanced driver assistance system (ADAS) that relies exclusively on vision-based cameras and the related FSD software to detect and respond to the roadway ahead, projecting a path forward based on traffic control devices, vehicles, pedestrians, and the roadway itself. When Tesla began transitioning away from using both cameras and radars to an exclusively camera-based approach, known as Tesla Vision, in mid-2021, it developed and implemented a degradation detection system that it deployed by a software update to existing and new Tesla vehicles. On June 28, 2024, the day after Tesla submitted the SGO report of the November 28, 2023 fatal crash listed in this document, Tesla began developing an update to the degradation detection system. At this time, ODI does not have information on when the update was deployed and which vehicles have the updated system. ODI discussed individual incidents and its initial findings during the PE phase of its investigation with Tesla. As part of those discussions, Tesla’s post-incident analysis indicated that the update to the degradation detection system, had it been installed on the vehicles at the time, may have affected 3 of the 9 incidents identified by ODI. Tesla also described internal data and labeling limitations that prevented a uniform identification and analysis of crash events with the subject system engaged. ODI believes this limitation could have led to under-reporting of subject crashes over portions of the defined time-period. Available incident data raise concerns that Tesla’s degradation detection system, both as originally deployed and later updated, fails to detect and/or warn the driver appropriately under degraded visibility conditions such as glare and airborne obscurants. In the crashes that ODI has reviewed, the system did not detect common roadway conditions that impaired camera visibility and/or provide alerts when camera performance had deteriorated until immediately before the crash occurred. Review of Tesla’s responses revealed additional crashes that occurred in similar environments and where the system either did not detect a degraded state, and/or it did not present the driver with an alert with adequate time for the driver to react. In each of these crashes, FSD also lost track of or never detected a lead vehicle in its path. In upgrading PE24031 to an Engineering Analysis (EA), ODI will gather further information on the updated degradation detection system, including the status of updating vehicles and scope of compatible vehicles, the system’s visibility degradation detection capability, and alerts or warnings to the driver. Lastly, ODI will conduct analysis on six recent potentially related incidents. These incidents can be found at NHTSA.gov under the following SGO report identification numbers: 13781-11937, 13781-13211, 13781-13569, 13781-13633, 13781-13693, 13781-13788. The crashes included in the failure report summary can be found at NHTSA.gov under the following SGO report identification numbers: 13781-8004, 13781-7181, 13781-7381, 13781-7767, 13781-7964, 13781-8977, 13781-9267.

The Office of Defects Investigation (“ODI”) is opening this Preliminary Evaluation (PE) to assess the scope, frequency, and potential safety consequences of FSD executing driving maneuvers that constitute traffic safety violations. This investigation concerns versions of FSD that Tesla has labeled as "FSD (Supervised)" and "FSD (Beta)." Tesla characterizes FSD as an SAE Level 2 partial automation system requiring a fully attentive driver who is engaged in the driving task at all times. Level 2 partial automation systems are designed to support and assist the driver in performing certain aspects of the driving task, requiring a driver to supervise and intervene as necessary.  The driver remains fully responsible at all times for driving the vehicle, including complying with applicable traffic laws. ODI’s investigation will therefore focus, in particular, on whether certain driving inputs within the control authority of FSD forestall the driver’s supervision when they are unexpectedly performed. ODI has identified a number of incidents in which the inputs to the dynamic driving task commanded by FSD induced vehicle behavior that violated traffic safety laws. Although reports of this nature span a variety of behaviors, the reports appear to most commonly involve two types of scenarios. The first type of scenario involves a vehicle operating with FSD proceeding into an intersection in violation of a red traffic signal. The second type of scenario involves FSD commanding a lane change into an opposing lane of traffic. With respect to the first type of scenario, ODI has identified 18 complaints and 1 media report alleging that a Tesla vehicle, operating at an intersection with FSD engaged, failed to remain stopped for the duration of a red traffic signal, failed to stop fully, or failed to accurately detect and display the correct traffic signal state in the vehicle interface. Some complainants also alleged that FSD did not provide warnings of the system's intended behavior as the vehicle was approaching a red traffic signal. ODI has identified six Standing General Order ("SGO") reports in which a Tesla vehicle, operating with FSD engaged, approached an intersection with a red traffic signal, continued to travel into the intersection against the red light and was subsequently involved in a crash with other motor vehicles in the intersection. Of these incidents, four crashes resulted in one or more reported injuries. At least some of the incidents appeared to involve FSD proceeding into the intersection after coming to a complete stop. ODI's pre-investigative work, including coordination with the Maryland Transportation Authority and State Police, indicated that the problem may be repeatable, given that multiple subject incidents occurred at the same intersection in Joppa, Maryland. NHTSA understands that Tesla has since taken action to address the issue at this intersection. With respect to the second type of scenario, ODI has identified 2 SGO reports, 18 complaints, and 2 media reports alleging that a Tesla vehicle, operating with FSD engaged, entered opposing lanes of travel during or following a turn, crossed double-yellow lane markings while proceeding straight, or attempted to turn onto a road in the wrong direction despite the presence of wrong-way road signs. Likewise, ODI has identified 4 SGO reports, 6 complaints, and 1 media report alleging that a Tesla vehicle, operating with FSD engaged, proceeded straight through an intersection in a turn-only lane or executed a turn at an intersection in a through lane despite the presence of lane markings or signals. Complaints also alleged that FSD did not provide warnings of the system's intended behavior. Some complaints alleged that more than one of these failures occurred and, as such, the numbers are not cumulative. Some of the reported incidents appeared to involve FSD executing a lane change into an opposing lane of travel with little notice to a driver or opportunity to intervene. ODI’s review will assess whether there was prior warning or adequate time for the driver to respond to the unexpected behavior or to safely supervise the automated driving task. This review will assess any warnings to the driver about the system's impending behavior; the time given to drivers to respond; the capability of FSD to detect, display to the driver, and respond appropriately to traffic signals; and the capability of FSD to detect and respond to lane markings and wrong-way signage. NHTSA's review will also consider any updates or modifications to the system(s) that may affect the performance of FSD with respect to obeying traffic safety laws and signals. This assessment will focus, in particular, on the types of traffic safety violations described above, as most reports identified thus far have centered around those behaviors. While the behaviors under investigation appear to occur most frequently at intersections, NHTSA’s investigation will encompass any other types of situations in which this behavior may arise, such as when traveling adjacent to a lane of opposing traffic or when approaching railroad crossings. If other evidence received during this investigation involve other types of traffic safety violations, those may be considered as part of this assessment as well. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov. The SGO reports cited in this Resume are listed below by report ID and are available for download at NHTSA.gov/laws-regulations/standing-general-order-crash-reporting. 13781-8739-1, 13781-8995-1, 13781-9623-1, 13781-10333-1, 13781-10872-1, 13781-10930-1, 13781-10939-1, 13781-10941-1, 13781-11069-1, 13781-11305-1, 13781-11579-1 Media reported allegations included as a separate attachment.

The Office of Defects Investigation (“ODI”) has identified numerous incident reports submitted by Tesla, Inc. (“Tesla”) in response to Standing General Order 2021-01 (the “SGO”), in which the reported crashes occurred several months or more before the dates of the reports. The majority of these reports involved crashes in which the Standing General Order in place at the time required a report to be submitted within one or five days of Tesla receiving notice of the crash. When the reports were submitted, Tesla submitted them in one of two ways. Many of the reports were submitted as part of a single batch, while others were submitted on a rolling basis. Preliminary engagement between ODI and Tesla on the issue indicates that the timing of the reports was due to an issue with Tesla’s data collection, which, according to Tesla, has now been fixed. NHTSA is opening this Audit Query, a standard process for reviewing compliance with legal requirements, to evaluate the cause of the potential delays in reporting, the scope of any such delays, and the mitigations that Tesla has developed to address them. As part of this review, NHTSA will assess whether any reports of prior incidents remain outstanding and whether the reports that were submitted include all of the required and available data. The SGO reports cited in the Opening Resume, can be found at NHTSA.gov/SGOCrashReporting under the following SGO 2021-01 report IDs: 13781-11020-1 13781-10844-1 13781-10843-1 13781-10530-1 13781-10160-1 13781-10159-1 13781-10157-1 13781-10146-1 13781-10122-1 13781-10098-1 13781-10097-1 13781-10096-1 13781-10095-1 13781-10094-1 13781-10093-1 13781-10023-1 13781-10022-1 13781-10021-1 13781-10020-1 13781-10017-1 13781-10016-1 13781-10015-1 13781-10014-1 13781-10013-1 13781-10012-1 13781-6047-1 13781-9930-1 13781-9917-1 13781-9928-1 13781-9925-1 13781-9924-1 13781-9923-1 13781-9922-1 13781-9835-1 13781-9834-1 13781-9833-1 13781-9832-1 13781-9831-1 13781-9830-1 13781-9829-1 13781-9827-1 13781-9818-1 13781-9780-1 13781-9779-1 13781-9778-1 13781-9777-1 13781-9775-1 13781-9774-1 13781-9773-1 13781-9772-1 13781-9771-1 13781-9770-1 13781-9728-1 13781-9688-1 13781-9715-1 13781-9714-1 13781-9713-1 13781-9712-1 13781-9711-1 13781-9710-1 13781-9709-1 13781-9696-1 13781-9695-1 13781-9694-1 13781-9693-1 13781-9692-1 13781-9691-1 13781-9690-1 13781-9687-1 13781-9686-1 13781-9342-1 13781-9319-1 13781-9019-1 13781-8910-1 13781-8732-1 13781-8712-1 13781-8310-1 13781-7897-1 13781-7895-1 13781-7835-1 13781-7798-1 13781-7797-1 13781-7758-1 13781-7757-1 13781-7756-1 13781-7755-1 13781-7667-1 13781-7399-1 13781-7398-1 13781-7397-1 13781-7396-1 13781-7395-1 13781-7394-1 13781-7393-1 13781-7389-1 13781-7388-1 13781-7387-1 13781-7386-1 13781-7385-1 13781-7383-1 13781-7187-1 13781-7186-1 13781-7185-1 13781-7184-1 13781-7181-1 13781-7023-1 13781-6399-1 13781-6389-1 13781-6388-1 13781-6387-1 13781-6386-1 13781-6379-1 13781-6378-1 13781-6377-1 13781-6375-1 13781-6214-1 13781-6172-1 13781-6155-1 13781-6154-1 13781-6122-1 13781-6120-1 13781-6118-1 13781-5800-1

I am writing to report several safety incidents that occurred while using Full Self-Driving (FSD) mode on my 2023 Model 3. Below are the details of the specific behaviors observed: - Right turn on red almost crashed into an oncoming car from the left - Hard emergency brake due to a bird that was in the opposite lane - Additional emergency brake around 10 seconds later for no reason - Running a red light by more than a second

NHTSA ID

11756205

Incident

Aug 9, 2026

Two separate incidents occurred on July 10th and July 12th 2026 involving adaptive cruise control. While adaptive cruise control was engaged my car slammed on the brakes for no reason. There was nothing in the roadway to cause abrupt braking. The second time it occurred my car was close to being rear ended by a vehicle driving behind me. I took the car which is still under warranty to Tesla who confirmed there is a known firmware issue. No time frame was provided as to when the issue will be fixed.

NHTSA ID

11755758

Incident

Jul 10, 2026

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.

NHTSA ID

11754804

Incident

Aug 4, 2026

The steering rack in my 2023 Tesla Model 3 is defective and I can show it for inspection. 1.5 years ago it failed and the torque sensor in the rack is showing that there is a constant demand (even when parked and my hands off the wheel) to turn the wheel to the right that you can see in the cars diagnostics menu. I took it in and showed the service advisor the raw data and took a drive with the tech who both acknowledged the data and the car wanting to drive off the road. They did an alignment on the car but the issue still persists even after I told them the night I drove it home in their survey. I live on very narrow country roads with little run off room and often times less than foot between cars as they pass. Several times I would get the 'corrective steering applied' warning as the car falsely thinking I was turning to drive off the road on the right and applied steering to pull the car left. A few of these times it was right as a oncoming car was approaching almost causing me to run into other cars multiple times because you have to get close to the edge of the road to make room for other cars to pass. I took it to a independent service center who confirmed that the steering rack torque sensor is at fault. I took it back again this week, showing them that the car is turning to the right 30-45% easier than to the left and they did another alignment with the same exact outcome. The car wants to drive right off the road.

NHTSA ID

11750955

Incident

Nov 18, 2024

i was using FSD and my vehicle braked suddenly, with nothing in front of me, on the highway going over 50mph with a car close behind. the car to my right was swerving into my lane, so it was trying to help, but my vehicle should have veered left - not brake hard in the fast lane.

NHTSA ID

11749288

Incident

Jul 8, 2026

Vehicle: Tesla Model 3 Issue: Power trunk failed to detect obstruction Date of incident: July 5, 2026 Location: Surprise, AZ During normal use of the vehicle, my child pressed the “close trunk” button while I was leaning into the trunk area. The powered trunk began closing and did not stop when it made contact with my head. Instead of reversing direction, the trunk continued applying downward force until I moved out of the way. This indicates a failure of the trunk’s obstruction detection system, which is supposed to prevent injury by stopping or reversing when an object or person is detected. This malfunction poses a significant safety risk, especially to children who may accidentally activate the trunk or to adults loading items. A powered trunk should not be able to continue closing on a person’s head. I request that NHTSA investigate whether this is a defect in the Tesla Model 3 trunk sensor system and whether similar incidents have been reported.

NHTSA ID

11748682

Incident

Jul 5, 2026

My 2023 Tesla Model 3 (VIN [XXX]) has a recurring safety defect in its driver-assistance system involving two unsafe behaviors. First, “phantom braking”: while driving with Autopilot/FSD engaged, the vehicle decelerates suddenly and without warning when there is no obstacle or threat in its path, creating a rear-end collision risk. This was first reported within the vehicle’s warranty period and has recurred. Second, on the most recent occurrence, with a Tesla service technician riding along to witness the issue, Full Self Driving (Supervised) failed to proceed safely through the intersection of [XXX] and [XXX]. The vehicle stopped mid-turn while another vehicle approached from the opposite direction. I had to take manual control to complete the turn and avoid a hazard. The Tesla technician witnessed this directly, and the service summary states FSD “did not proceed through the intersection properly.” The vehicle has been to a Tesla service center twice for this defect. It has not been resolved. The behavior occurs without warning and is unpredictable. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11747048

Incident

May 7, 2026

I was driving today in California, to TopGolf. I had to cross a railway crossing around [XXX] I think, or [XXX] - one of those 2, between [XXX] and [XXX] pm.. I was using Tesla's FSD driving to go on a local road. I was not distracted or occupied - the vehicle was going at a fairly high speed like maybe 35 or so, and in a couple of seconds, it broke the red and white safety gate at a railway crossing, inspite of it being down and the train being on the tracks - I WAS IN SHOCK. The car completely missed the red and white gate, and just blew past it, damaging my windshield completely to smithereens and throwing glass all over the car. I was in such SHOCK and TRAUMA that I literaly wanted to exit the car and sit down somewhere, but i gathered my composure and drove quickly to the nearest safest place I could stop, and got into some office parking garage. I then called the cops and reported it. This was such a shock, and thank the Almighty God that I wasnt hurt and that the train didn't just hit me. This HAS to be recalled, and there is no way this should be allowed on the roads. I used FSD a Lot and i will never use it again. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11746850

Incident

Jun 26, 2026

On certain Model 3 vehicles, brake lines may be corroded beyond acceptable limits, which may result in loss of brake fluid. Loss of brake fluid will result in a customer facing alert if the fluid reaches the predetermined level to trigger an alert. Upon customer complaint of a low brake fluid alert, evidence of a brake fluid leak, or a failed periodic roadworthiness inspection, inspect the brake lines. If corrosion is found on any of the brake lines, replace all brake lines on the vehicle with new corrosion-resistant parts, in one combined repair. NOTE: Due to dual reduncancy, vehicle safety is not impacted by corrosion on the brake lines.

On certain Model 3 vehicles, brake lines may be corroded beyond acceptable limits, which may result in loss of brake fluid. Loss of brake fluid will result in a customer facing alert if the fluid reaches the predetermined level to trigger an alert. Upon customer complaint of a low brake fluid alert, evidence of a brake fluid leak, or a failed periodic roadworthiness inspection, inspect the brake lines. If corrosion is found on any of the brake lines, replace all brake lines on the vehicle with new corrosion-resistant parts, in one combined repair. NOTE: Due to dual reduncancy, vehicle safety is not impacted by corrosion on the brake lines.

A firmware diagnosis feature is being introduced on Model 3 and Model Y vehicles that monitors wheel alignment over time. This feature detects changes in wheel alignment that may be related to incorrect tire pressures, degraded ball joints, bushings or damaged suspension links. If the feature determines that an inspection at a Tesla Service Center is required, a customer-facing alert will appear on the touchscreen.

Tesla does not provide physical owner's manual copies. Instead, all available owner’s manual content is integrated into the vehicle software, and only the content relevant for a given vehicle, based on vehicle configuration and software version installed, is displayed on its touchscreen. This file contains all available owner’s manual content for the vehicle converted to PDF format, and given the distribution method and NHTSA’s submission format requirements, it is the best available representative copy of owner’s manual content. However, a customer who accesses the owner’s manual via their vehicle’s touchscreen would only see the parts of this PDF file that are relevant to their vehicle.

Tesla does not provide physical owner's manual copies. Instead, all available owner’s manual content is integrated into the vehicle software, and only the content relevant for a given vehicle, based on vehicle configuration and software version installed, is displayed on its touchscreen. This file contains all available owner’s manual content for the vehicle converted to PDF format, and given the distribution method and NHTSA’s submission format requirements, it is the best available representative copy of owner’s manual content. However, a customer who accesses the owner’s manual via their vehicle’s touchscreen would only see the parts of this PDF file that are relevant to their vehicle.

Tesla does not provide physical owner's manual copies. Instead, all available owner’s manual content is integrated into the vehicle software, and only the content relevant for a given vehicle, based on vehicle configuration and software version installed, is displayed on its touchscreen. This file contains all available owner’s manual content for the vehicle converted to PDF format, and given the distribution method and NHTSA’s submission format requirements, it is the best available representative copy of owner’s manual content. However, a customer who accesses the owner’s manual via their vehicle’s touchscreen would only see the parts of this PDF file that are relevant to their vehicle.