2020 Tesla Model y

I was driving a 2020 Tesla Model Y with Full Self-Driving (FSD) engaged when another vehicle unexpectedly turned into my path, resulting in a heavy initial collision. However, the most critical safety failures occurred immediately after this first impact: FSD Failure to Disengage: Despite the severe physical impact of the collision, the Tesla FSD system completely failed to detect the crash or automatically disengage. It did not apply the brakes. Instead, the system continued to actively propel the vehicle forward for approximately 5 to 10 meters, steering it directly into a concrete traffic median and causing a severe secondary collision. -Airbag Non-Deployment: Despite enduring two distinct physical impacts—the initial crash and the secondary median collision which resulted in a broken axle—none of the airbags deployed to protect the cabin. -The vehicle was rendered a total loss. It has been inspected by the responding police officer (who cited the other driver for the initial crash) and my insurance company's total loss adjusters. There were no warning lamps or messages prior to the failure. A driver assistance system that continues to independently drive a vehicle after a structural crash, coupled with a complete failure of airbag deployment, poses a severe risk of further injury or fatalities to the occupants and the public. Tesla Customer Service has opened an internal investigation , but I am filing this report directly with NHTSA because a driver assistance system that continues to independently drive a vehicle after a structural crash, coupled with a complete failure of passive safety deployment, represents a catastrophic safety defect. I urge NHTSA to investigate Tesla’s FSD post-collision disengagement protocols and airbag sensor reliability to prevent future fatalities. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The front suspension bushing has torn prematurely at only 31099 miles. There is no history of external impact, accident, or modifications to the suspension assembly. This vehicle displays the exact premature structural breakdown targeted by the active NHTSA Office of Defects Investigation case number PE26006. It was found out during Tesla service inspection to replace 12 V battery.Tesla Service declined to offer a goodwill repair due to calendar age (6 years), forcing an out-of-pocket replacement. The mechanical part failed silently without triggering any electronic dashboard alerts or system warnings to notify the driver of the safety risk."

The vehicle is experiencing an active, recurring safety hazard caused by a manufacturer software bug that triggers unprovoked alignment parameter and steering angle plausibility resets. This defect directly compromises the vehicle’s primary handling characteristics and stability control systems. This specific firmware vulnerability is officially documented and acknowledged by the manufacturer under Tesla Internal Toolbox Article 8368100. The unprovoked resetting of steering and alignment parameters degrades the vehicle's driving stability, alters steering feedback, and can cause sudden, unexpected disengagements of advanced driver-assistance systems (Autopilot/FSD). This sudden loss of driver assist functionality and changes to steering plausibility while operating at highway speeds pose a severe, immediate risk of a crash or loss of vehicle control. Tesla's standard remedy for this defect is a newer firmware deployment (branch .32 or later). However, due to a severe firmware gap, the vehicle's automated Over-The-Air (OTA) download architecture is corrupted, consistently freezing and failing mid-stream at precise milestones (50%, 67%, and 83%). While non-critical data packets (such as Map and Navigation updates) download successfully, the core safety-critical OS update cannot be processed over the air. Tesla Service has been formally notified of the active safety hazard and the corresponding internal technical article (Toolbox Article 8368100). Because the vehicle's automated OTA path is blocked by a software-induced cache loop, a physical, local hardware tether via Tesla Toolbox is required to bypass the download block. Tesla Service has refused to perform this critical safety patch or tether the vehicle unless the consumer pays an out-of-pocket, mandatory "formal diagnostic fee." Forcing a consumer to pay a fee to resolve a documented, manufacturer-created code defect that compromises steering safety constitutes a failure to remediate a known safety hazard.

The full self driving feature on highways serves within the lane, getting close from line to line similar to how an impaired driver would drive

Critical FSD Lane Change - 2020 Tesla Model Y Software 2026.26.6.5 and FSD v14.1 Lite changed lanes suddenly and violently at freeway speed while entering an express lane with flexible lane delineators between the express lanes and the freeway. The automation made the lane change at the very last second, narrowly avoiding impact with the plastic posts, and swerving back into the left-most freeway lane. The action of the FSD could have caused a loss of control of the vehicle as it compensated for the weight shift caused by suddenly swerving. There was space between the Tesla and other vehicles at the time but this could have been catastrophic with only slight changes to the road condition etc... Reported to Tesla FSD Beta team. No known failures, warning lights or other issues with the car.

2020 Model Y developed a parking-brake/braking system failure. Vehicle displayed "Steering & Braking - Parking brake functions degraded/parking brake may not apply or release." This resulted in the vehicle being unable to drive for extended periods of time. Tesla diagnosed a rear-right brake caliper failure and quoted approximately $886. Tesla acknowledged the condition is not normal wear and tear but declined coverage because the vehicle is outside of warranty and there is no open recall. I am concerned about premature failure of a safety-critical brake/parking-brake component.

Loud intermittent clicking in rear and front wheel at slow speeds driver side. Likely faulty spline. It's been on going for the past three years.

On June 17, 2026, I experienced a severe and life-threatening entrapment inside my 2020 Tesla Model Y. The incident occurred immediately after I finished charging the vehicle for approximately two hours at a charging station under direct sunlight, which left the car extremely hot. After charging, I drove a short distance, parked, and left the vehicle for approximately 20 minutes. Upon my return, my card key failed to unlock the vehicle. After contacting my wife for assistance, I was briefly able to open the door, but I became securely locked inside the cabin as soon as the door closed. The 12V battery had completely failed without any advanced warning or vehicle alarm. All power was lost. The windows were fully rolled up, the climate control stopped, and there was no airflow. The cabin temperature was rapidly rising due to the earlier sun exposure. In a state of panic and facing a dangerously overheating cabin, I called my wife to inform her that I needed to break a window. I struck the windshield to draw the attention of passersby, which cracked the glass but did not shatter it. I then attempted to force a side window outward to establish ventilation and crawled into the back seat to try to open the trunk, but all electronic and external release mechanisms were unresponsive. After regaining composure, I used my phone to look up emergency solutions online and ultimately located the manual mechanical door release. I was able to escape.

We had a terrifying moment today. Low-voltage battery died instantly, leaving the driver locked inside a completely blacked-out car. No electronic door response, phone app & keycards completely frozen. Luckily, we got out safely after calling Roadside Assistance, but this is a serious hazard: No advance warning: The car gave zero indication the low-voltage battery was dying. Counter-intuitive exit: In a panic, 99% of people won't recall where the hidden manual release is. Two urgently needed safety updates: 1. Advanced, explicit warnings days before low-voltage battery failure. 2. Door safety logic that guarantees standard exit hardware works seamlessly even during complete power loss. In hot weather, this corner case can turn fatal in minutes. Please prioritize this safety redesign!

I am reporting multiple safety‑critical incidents involving my Tesla Model Y equipped with FSD (Supervised). The vehicle has repeatedly performed sudden braking in active traffic without any obstacles present, causing physical jolting and creating a risk of collision. These incidents occurred on [XXX] and XXX including a sudden hard brake at approximately 2:18 p.m. on XXX. Additionally, the vehicle has shown lane‑centering instability on the highway. On XXX at approximately 1:51 p.m., the vehicle drifted within the lane and failed to maintain proper centering while FSD was engaged, requiring immediate manual intervention to avoid unsafe movement. Tesla service has stated that no error codes were detected, but also acknowledged known FSD software behaviors affecting Hardware 3 vehicles. This indicates the system may be performing unsafe maneuvers without logging faults. I am reporting these incidents because they pose a direct safety risk to me, other drivers, and pedestrians. I request that NHTSA review these behaviors as potential safety defects in Tesla’s FSD (Supervised) system. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While my wife was driving on a flat straight road, she heard a loud bang noise from the front of the vehicle. The vehicle made a loud grinding noise. Upon inspection, it was found the bolt securing the front right damper to the suspension had snapped and come loose. The nut fastening the bolt was lost on the roadside.

This is about a 2020 Tesla Model Y, with HardWare3 (HW3) Full-Self-Driving (FSD) feature. The older HW3 FSD-enabled Model Y cars started getting the new "v14 Lite" FSD updates recently - I got mine a few days ago. I immediately noticed a safety concern with the v14 Lite. Previous versions of FSD allowed me to set the maximum speed that the car would drive in the FSD mode - I can adjust it using the "wheel button" on my right thumb on the steering wheel, and the car would not exceed the maximum speed I choose. However, after the update to v14 Lite, the wheel button no longer controlled the maximum speed. Instead, it controlled the "speed profile" ("Sloth", "Chill", "Standard", "Hurry" are the options in my car). Regularly in highway driving, even in the Standard mode, the car would speed up to go well past the speed limit, more than 10mph over the speed limit, seemingly to match the speed of the rest of the traffic (69mph on a 55mph highway). This felt very uncomfortable. I tried to adjust the max speed down like I was used to, but the car instead switched to a different profile, "Chill", and rapidly slowed down to 4mph below the speed limit (51mph in this case=. The speed reduction was so sudden that it also felt dangerous (car behind me would have to break quickly to not hit me), and I didn't want to be driving well below the speed limit (also dangerous). Under "Self Driving" settings menu, there is also a feature called "Speed Limit", that used to allow you to set the "default" speed limit for FSD driving (for instance, +3mph above the speed limit). You can adjust it up and down with the right thumb wheel beyond that, but it set the default basic max speed limit for FSD. After the v14 Lite update, the FSD completely ignores this speed limit, and happily accelerates well beyond that. Not it seems like the "speed limit" feature is simply for warning the driver to not exceed the pre-determined speed limit when controlling the car. FSD simply ignores it.

Seat occupancy sensor failed for the second time. The car will randomly shut off if I am inside because it does not detect a passenger. When I exit the vehicle, the car will stay on for an extended period of time due to failed seat occupancy sensor. This is a widespread issue affecting all makes and models of Tesla. They are aware of the high rate of failure and have not made any attempt to issue a recall. This is dangerous and inconvenient as the infotainment system will not pair with your phone because it does not detect a driver. When moving, the car will also randomly throw itself into PARK at speed if you don’t put on your seatbelt before moving. The first time this happened, I smashed my head on the steering wheel.

The contact's daughter owns a 2020 Tesla Model Y. The contact stated that while driving at various speeds, an abnormal, squeaking sound would emit from the vehicle without warning. The contact called the service center where they gave the contact an estimate for a diagnostic. The contact was also informed that the vehicle may be covered under a goodwill warranty. The vehicle several parts of the front control arm were defective and had caused several other defects related to the control arm. The contact was given an estimate for the repair. The manufacturer had yet to be notified of the failure. The vehicle remained in the service center's possession but had yet to be repaired. The failure mileage was approximately 48,000.

There was a grinding sound coming from the LF wheel. This was progressively getting worse. Car was shaking while driving so dropped it off with my mechanic due to safety concerns. Per the mechanic that fixed the issue: Inspection found LF wheel bearing is loose. A bolt backed out on inside rubbing through axel shaft. Allowed wheel bearing to damage to damaged from moving in place. Axle shaft damaged from rubbing on backed out bolt. Replace LF axle shaft and wheel bearing. Informed by mechanic that wheel could have fallen off while driving. No prior work. Mechanic believes most likely issue was not having the bolts appropriately installed at time of manufactue

Odometer Fraud. The contact purchased a 2020 Tesla Model Y. It was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 78,823, but after driving the vehicle from the dealer's lot, the contact discovered through the vehicle settings that the actual mileage was 80,810. The dealer was contacted, but no resolution was provided. The dealer then updated the advertised mileage on the website.            

My Tesla Model Y 2020 (VIN: [XXX] ) is stuck on software version 2023.44.1 for more than 2 years and has four incomplete NHTSA safety recalls: • 23V838 – Autosteer driver monitoring improvements • 24V051 – Brake/Park/ABS warning font size too small • 24V153 – Muted Pedestrian Warning System • 24V554 – Hood not detected as unlatched
Tesla Service in the Baltic region and Tesla Service in Warsaw (Poland) both refused to deliver the required OTA safety recall updates. They classified the vehicle as “unsupported” because it is a US-market vehicle located in Latvia.
I am unable to bring the vehicle to any Tesla Service Center.
Tesla is not fulfilling its legal obligation to provide the free safety recall remedies. Please require Tesla to deliver the updates or provide a proper solution.
Attached: screenshots of refusals from Tesla Service (Baltic Warsaw).
 INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Vehicle had "front passenger safety restraint system fault" multiple times intermittently. Serviced by Tesla service center in Dublin, CA who confirmed the problem. Documentation on the invoice stated that there was an open service bulletin related to this issue and was related to "the occupancy sensory in the seat was not functioning as expected." Upon inspection by the technician they found "an open connection in the seat harness and seat cover that can cause intermittent alerts." Additional repair notes indicate that this was to "address a service bulletin related to the front passenger seat's occupant classification system. We identified the need for an update to ensure proper functionality. To resolve this, we retrofitted the system in the front passenger seat as per the bulletin requirements." The fact that there is an open service bulletin for this issue indicates that it is not isolated to just this vehicle. An issue with the occupant sensors of a front vehicle seat directly impacts whether the air bags will deploy in a crash, therefore this is a serious safety risk.

A 2018 Ford Explorer, marked police vehicles, was operating with lights and siren when it proceeded through a red traffic light at an intersection. The subject vehicle, 2020 Tesla Model 3, was proceeding through a green traffic light at the intersection and struck the Ford.

The full self-driving (FSD) stopped working although it was fully paid for at the time of vehicle purchase. Along with that, the car stopped receiving/installing over the air software updates, the lane markings in the display disappeared, and the automatic cancelling turn signals stopped working (requiring me to manually cancel them). I took it to Tesla service and was told that the car needs a new computer at a cost of approximately $2,300. To answer the bullet points above: 1. The main vehicle computer malfunctioned. 2. I paid for FSD for the safety it provides - without FSD, the car is simply less safe in traffic. 3. The Tesla service center confirmed that the vehicle computer has malfunctioned. 4. There was no indication of any kind, until suddenly the FSD stopped working and I noticed subsequently that downloading/installing software updates failed, lane markings disappeared, and automatic cancelling turn signals stopped working requiring manual operation.