Electrical System Problems of Tesla Model Y - part 1

On the morning of 8-17, 2026, the vehicle experienced a total electrical power loss and high-voltage system deadlock immediately following an official Tesla over-the-air (ota) software update pushed the previous night. Prior to this remote software update, the vehicle had zero operational issues or warning signs. Right after the update completed, the vehicle became completely unresponsive and undrivable. This issue directly compromised safety by causing a sudden, unpredictable loss of vehicle power and propulsion capability, creating a severe risk of stranded vehicle hazards and secondary collisions. The vehicle was brought to an official Tesla service center (whitestone/flushing, NY) for diagnosis. The manufacturer’s service center inspected the vehicle and confirmed a high-voltage power conversion system (pcs) deadlock failure (repair estimate id issued). The failed pcs component remains at the Tesla service center awaiting replacement and is fully available for inspection upon request.

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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.

On xxx, while driving southbound on xxx from [xxx] toward [xxx], my vehicle’s center display (mcu) crashed and rebooted at highway speed, leaving me with no screen for approximately 5–10 minutes. Sequence of events: 1. Earlier in the drive, while using full self-driving (supervised) v14 lite, the vehicle exhibited phantom braking and speed oscillation (repeatedly cycling between approximately 73, 70, and 72 mph without cause). I disengaged fsd and switched to standard autopilot. 2. During this portion of the drive, three alert codes appeared: ui_a111, app_w207, and di_a175 (the latter twice). 3. I stopped to supercharge in [xxx] at 1:17 pm (33-minute session ending approximately 1:50 pm), then resumed driving on xxx [xxx]. 4. Shortly after resuming the drive, at approximately 1:53 pm, I tapped on one of the displayed alerts on the touchscreen to view details. The screen opened an in-car help/browser page, then the entire mcu crashed and went dark. 5. The display remained black for approximately 5–10 minutes while I was traveling at highway speed. During this time I had no speedometer, no navigation/gps, no touch controls, and no visibility into vehicle alerts or state. In a Tesla Model Y, the center display is the only instrument display — there is no separate gauge cluster. 6. The mcu eventually rebooted on its own and the display returned. The incident time is corroborated by a text message my wife sent me from inside the vehicle at 1:53 pm at my request, specifically to create a contemporaneous timestamped record. Safety concern: a driver-initiated tap on a safety alert — an action the interface invites — triggered a total display failure at highway speed. Loss of the sole speedometer and all vehicle status information while traveling at approximately 70+ mph is an unreasonable safety risk. This occurred on the same drive as continued phantom braking and speed oscillation events previously reported in odi #xxx, o information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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Failed component & availability: 2023 Tesla Model Y front suspension (suspected lower lateral link detachment), steering system, and airbag system (failed to deploy). Preserved intact, but will be at hendrick collision ([xxx]; poc: dendi [xxx]) under allstate claim #xxx. Available for immediate NHTSA inspection. Safety risk: at highway speed on aviation parkway, the car suffered an unprompted, violent directional loss, zig-zagging uncontrollably in the lane and risking a multi-vehicle crash. Operating manually. Do not have autopilot or fsd. I was at the mercy of the vehicle's sensor/chassis failure. The car crashed into the grass median, sustaining heavy driver-side damage. Airbags failed to deploy during impact. Confirmation by repair center: physical teardown is on hold pending event data recorder (edr) "black box" imaging and chassis alignment inspection. Inspections to date: allstate level 1 claim #xxx assigned. Evidence preservation and cloud telemetry extraction notices served to Tesla legal and allstate. Warnings & prior repair history: no warnings appeared immediately prior to steering failure. Software was fully updated. This crash occurred 14 days after a 2nd high-voltage (hv) battery replacement: xxx: hv battery error code -> 1st hv battery replacement (returned xxx) xxx: recurring hv battery error -> 2nd hv battery replacement (returned xxx) xxx: unprompted directional failure and crash. Investigative context: matches NHTSA pe26006 investigating 2021-2023 Model Y front lower lateral link detachments causing sudden loss of control. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

On 8/10/26, my Tesla experienced a complete low-voltage electrical failure while parked at my home. I owned the vehicle 34 days and put 1,054 miles on it after purchasing it directly from Tesla as a pre-owned vehicle. I entered the driver's seat, and closed the driver's door. The center touchscreen was completely black, the vehicle would not power on, and the Tesla mobile app could not control the vehicle. I attempted to exit the vehicle, but the electronic driver's-door release would not operate. My husband was outside the vehicle and was also unable to open the driver's door from the exterior. The outside temperature was approximately 80 degrees, and the interior of the vehicle became increasingly warmer. For several minutes, we attempted to open the driver's door, lower a window, or restore power without success. I had not been shown or instructed on the location or operation of the manual emergency door release when Tesla delivered the vehicle. I ultimately had to climb over the center console to the passenger side and push the passenger door open with both feet. Tesla roadside assistance was contacted and the vehicle was towed to the Tesla service center. Tesla's 8/12/2026 service record documents the concern as "parked vehicle unable to power on" and states that the technician found the 12v battery inoperative. Tesla replaced the 12v lead-acid battery assembly. During the same service visit, Tesla also replaced the left-front door glass and upper trim. Tesla separately verified that the passenger-side window had come out of its track and scratched the trim and documented that the cause was a loose and improperly seated front-right door trim panel. I received no warning on the vehicle display or through the Tesla app before the low-voltage battery failed. My primary safety concern is that loss of low-voltage power disabled the normal electronic means of exiting the driver's door while I was inside the vehicle, with no advance warning.

On Aug. 9, 2026, my 2022 Tesla Model Y experienced a sudden low-voltage electrical failure that completely immobilized the vehicle. Earlier that morning, the Tesla app sent a push notification indicating low-voltage battery service was needed. I tapped it, but it provided no actionable warning. I immediately checked maintenance. At 9:06 am, the app displayed “0 recommended” and “no maintenance is recommended for your vehicle at this time. ” less than an hour later, the vehicle completely failed. Nothing functioned. We could not open the doors or trunk, access the vehicle normally, or operate vehicle functions. The vehicle could not be put into a condition for normal towing; it would have had to be dragged/pulled onto the tow truck. Tesla later documented “electrical system is unable to support all features” and is replacing the 12v battery. This may be relevant to NHTSA pe25010.

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Nhtsa safety complaint what component failed: high-voltage (hv) battery system. Vehicle experienced complete electrical failure while parked at home, rendering vehicle completely inoperable. Battery is available for inspection at Tesla service - las vegas, east saharah location (currently in manufacturer's possession for warranty repair). Safety risk: vehicle suffered catastrophic hv battery failure while parked at residential location. Complete electrical system failure creates potential fire hazard and electrical hazard to occupants/property. Vehicle became disabled and required emergency towing. Sudden, unexplained electrical failure in residential setting with zero warning signs poses serious safety risk. Confirmation: yes — confirmed by Tesla service center: service ticket documents battery failure Tesla authorized emergency loaner accommodation only after 10-day delay Tesla ordered hv battery replacement under manufacturer warranty manufacturer admission of defect confirms safety issue.

The high-voltage battery failed unexpectedly shortly after the warranty expired (with only 9,000 miles past warranty). Tesla service confirmed a main high-voltage battery defect and quoted a full battery replacement. A sudden high-voltage battery failure causes a complete loss of propulsion/power, creating a severe collision and safety hazard on public roads. There were no prior warnings until the system suddenly failed and rendered the vehicle inoperable. The vehicle is currently available for inspection. This appears to be a premature latent defect in 2021 model high-voltage battery packs.

Center brake light fails intermittently when outside temperature is hot (115). Tesla is aware of the issue and has no fix. Side brake lights still seem to work when center fails.

My Tesla Model Y was driving on fsd (full self driving) and just did hard full stop brake at a traffic light and brought the car to a complete stop even when the light was green. Both of toddler kids in the back got pulled jolted forward where the seat belt hurt them. This stopping was random was unnecessary as no threat of other cars or the light was present. Luckily no one was behind us or they would have rear ended our car causing a serious accident. This really left my children in shock.

High voltage battery pack failed. It is available for inspection. No one was affected by the issue when it occurred. Tesla has inspected it and stated it has imbalance, and entire high voltage battery pack needs to be replaced. Yes, there is a warning messages on the screen. (bms_a079 - unable to charge - maximum charge level reached) . . . But only shows 50% state of charge the issue happened randomly while the car was parked yesterday 7/29/2026.

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.

While operating my 2022 Tesla Model Y, the vehicle suffered a catastrophic hardware failure of the onboard vehicle control computer. This total computer failure resulted in an immediate, sudden loss of electronic power steering assist while the vehicle was in motion. The steering wheel became incredibly stiff and heavy, creating a severe and hazarders driving situation. The vehicle was towed to a Tesla service center, where technicians confirmed the onboard computer hardware requires a complete replacement. A vital computer failing prematurely on a 2022 vehicle presents an extreme safety risk of crash or injury due to sudden loss of vehicle control.

Tesla released a new version of fsd: 2026. 20. 6. 11 v14 lite for my 2022 Model Y long range. I installed it overnight and the next morning, several systems become intermittent. The backup camera stopped working immediately, and fsd would drop out, with the message "take control immediately". I would then lose traffic visualization and other advanced features. Eventually the system would recover and start the cycle all over again. Several times per drive. I took the car to the dealer and they diagnosed it as a failed hw3 computer. The cost to repair it was $2,939 out of pocket since my car was 2 months out of warranty. The car was 100% functional before the v14 lite update. The dealership denied the problem was related to the update, but the internet now has numerous instances of this problem, and attribute it to the computer running much hotter under this new update, causing components to fail. Our update was installed while the car was in our garage at a temperature in the 70’sf and immediately caused the computer failure before the car even left the garage. I requested and was given the failed computer in case any independent investigation is needed.

Hello, we have 46224 miles on the car currently. A couple of weeks back the whole battery died. Tesla replaced the battery and we picked up the car this past Friday, the xxx. After picking up the car the driver's seat does not slide. I looked it up online on the Tesla website as well as on the app and at both the places it was strongly recommended to bring the car back to Tesla as the problem was very very likely secondary to the battery replacement. The seat does not move at all. When I spoke to customer service at out local Tesla dealership in [xxx], the earliest date they could provide us was in the first week of August! this is an urgent issue. We happen to be away on vacation that week. So we were told to review the cost estimate and then find a date on the app to bring the car in. When I questioned the estimate price, I was told that this was the worst case scenario. But the invoice clearly states calibration, and 3 prices for a switch package all amounting to $364. 45 with tax!!! again I questioned this huge charge, considering the battery replacement and I was told almost rudely, "that does not seem to be the issue. " just not right!! information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The vehicle's indirect tpms showed a "pressure sensor fault (may clear next drive)" without issuing any "low tire pressure" alert. On July 20, 2026, while driving, the rear right tire lost pressure and disintegrated over a 10-minute drive. Despite severe tire failure that triggered multiple safety system alerts (traction control, stability control, automatic emergency braking, and lane departure avoidance disabled), the vehicle software failed to issue a critical "do not drive" command or explicit "flat tire" warning. Furthermore, the official Tesla app automated response advised that "most alerts may resolve automatically on your next drive," encouraging continued driving. This total absence of critical emergency alerts and misleading system guidance created an extreme, life-threatening road hazard and resulted in severe tire and wheel destruction.

My 2021 Tesla Model Y (VIN: 5yjygdee3mf231346) experienced a serious safety malfunction during a 12v low?voltage failure. When the vehicle displayed the 12v alert, it became non?functional. Upon entering, no systems were operating. When I pressed the brake pedal, the interior lights flashed and both front windows began moving up and down automatically without any input. This uncommanded movement caused both windows to shatter violently inside the cabin. The glass broke along the lower section of the window, consistent with internal mechanical stress caused by the window motor cycling during a fault. This was not external impact. I have photos documenting the breakage pattern. This is a safety defect. Automatic window movement during electrical failure poses a risk of injury. Additionally, even if a customer closes a door with the window raised, the glass should not shatter. Tesla vehicles are designed with automatic window indexing and motor resistance protection. The system should adjust the window position to prevent breakage. The fact that the glass shattered indicates a failure of Tesla’s safety logic and window indexing system. Tesla denied responsibility and claimed “misuse,” but could not provide system logs to support this claim. Tesla also stated customers must ensure windows are lowered before closing doors, but this requirement does not exist anywhere in Tesla’s manual. Tesla’s explanation does not address the automatic window movement that caused the breakage. This malfunction presents a clear safety hazard: unexpected window movement, glass shattering inside the cabin, and risk of injury to occupants. I request NHTSA investigate Tesla’s window indexing behavior during 12v failures, the failure of safety protections, and the risk of glass breakage caused by system?initiated movement.

Safety defect report: sudden power loss & falsified records 1. Incident & 5-hr towing (xxx): on xxx at ~16:30, while executing a low-speed (<10 mph) left turn in cambridge, MA, the vehicle had a sudden, total high-voltage failure mid-turn, losing all motive power and power steering without warning or error codes. Photos/videos were taken on-scene confirming zero physical impact or undercarriage collision. The dead vehicle stopped directly in the active lane, completely blocking traffic. With zero power, the driver and several helpful bystanders had to use extreme physical effort to manually push the dead car out of the road. Aaa arrived at 18:00 but could not tow because total power loss completely locked all 4 wheels/brakes (no tow mode). Aaa dispatched a 2nd specialized flatbed with dollies (arrived 21:00). Driver was stranded on-site for over 5 hours. Car reached Tesla dedham service at 22:00. On xxx at 10:00 am, driver reported the driving power loss in person at dedham, handed over key, and got a loaner. 2. Written notice (xxx): on xxx, explicit written notice was sent to Tesla service manager taso, re-confirming the exact mid-driving power loss hazard. 3. Tesla diagnosis & repairs: invoice #xxx confirms a severe high-voltage failure: "a hardware overcurrent event caused small high voltage battery brick imbalance and rear inverter failure. " Tesla replaced rear drive unit inverter (3du) and pyrotechnic battery disconnect (pyrofuse). 4. Falsification of safety issue: despite 5-hr towing from wheel lock-up, xxx in-person report, and xxx written notice detailing mid-turn power loss, Tesla falsely recorded on invoice: "customer states: vehicle will not charge. " this is deliberate falsification and deceptive practice by Tesla to downplay a critical road hazard into a benign charging issue. I request NHTSA to investigate this high-voltage overcurrent/inverter failure pattern and Tesla's practice of altering safe information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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On July 10, 2026, my 2024 Tesla Model Y (approx. 22,440 miles) lost all power (main/12v battery) while parked next to a supercharger stall on level 3 of the harrah's ak-chin casino parking garage, maricopa, az. Ambient temperature was approximately 110f. My dog and cat were inside the vehicle. With the vehicle powered off, the key card, Tesla app, and interior door releases did not function, leaving no way to open the doors from outside or inside. Unable to find or access a working manual door release in time, we broke the rear quarter glass and damaged a door to physically extract the pets before they suffered heat-related harm. Maricopa police department and ak-chin fire department responded to the scene. This represents a serious safety defect: a loss of vehicle power should not eliminate all means of entry/egress, particularly when children or pets could be trapped in extreme heat. The vehicle, damaged door, and glass are available for inspection. Photos of the incident are available.

Fsd / vision system , no warnings , the vehicle is turning left and right on a straight road sunny conditions. I have a video that it wouldn’t let me attach to the case. I had Tesla service review this and they told me it’s standard behavior, this never occurred before and is dangerous and unusable. Autopilot has an issue that Tesla themself can’t detect and when I get into an accident it’ll be too late. I’ve been complaining about this for 3 months and Tesla keeps telling me it’s standard behavior, this never happened before the car used to drive straight, brand new tires front and back , blanket and aligned the car drives straight while not in autopilot, issue is directly related to fsd and Tesla autopilot.

On Saturday, [xxx] at around [xxx] going west on [xxx] toward [xxx] stopped at the intersection of [xxx]. While driving my 2022 Tesla Model Y, performance, I was stopped at a red light. When the light turned green and I began accelerating normally through the intersection, both passenger-side doors unexpectedly unlatched at the same time. The windows on both passenger doors lowered slightly, and the vehicle displayed a warning indicating the doors were open and to drive carefully. This created an immediate safety hazard, as the doors opened while the vehicle was in motion without any intentional action from the occupants(there were 0 occupants there). This is the second time this exact issue has occurred under similar circumstances, with the previous incident also happening as I accelerated from a red light. The vehicle should not allow multiple doors to unlatch while driving. I have reported the issue to Tesla for inspection and request that this incident be documented and investigated as a potential safety defect. I was going less that 10 mph when this occurred. Thankfully, my toddler was not sitting in the back seat and there were no passengers in the car. No injuries. No crash. *unable to upload any photos/screenshots at the moment, but can email or link a drive when need be. This website doesn't support any uploads at the moment. I'm on a mac using google chrome. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The high volatage heat pumps stopped working after 3 months and they left me without a loaner or credit for transportation.

While driving my 2026 Tesla Model Y in June 2026, the vehicle suddenly applied steering input on its own and began swerving left and right even though there were no obstacles in the road. I was driving on a straight section of roadway, centered in my lane, when the steering wheel started moving by itself as if the lane keeping system and steering were confused. I had to fight the wheel in both directions to keep the car from veering toward the curb and toward the adjacent lane. It felt like struggling against another person at the wheel. Fortunately there were no vehicles directly beside me at that moment, so I was able to avoid a collision, but this behavior could easily cause an accident for a typical driver. This incident is part of an ongoing pattern of safety issues with this vehicle. Since late 2025, I have experienced multiple events where the car fails to respond to the accelerator after shifting into drive and behaves as if it is in neutral until I shift back to park and then into drive again including a complete loss of propulsion while driving in moderate traffic. Tesla has already performed recall repairs on the battery/battery contactors and multiple diagnostic visits for intermittent loss of propulsion and steering concerns, but the problems continue. I am filing this complaint because I believe there is a serious defect involving the steering, propulsion system, and lane keeping driver assist systems that could cause loss of control and a crash.

On June 7, 2026, my 2021 Tesla Model Y with approximately 37,131 miles became completely unresponsive and could not be driven. Tesla mobile service replaced the 12v low-voltage battery on June 11, 2026. The official repair notes stated that the battery was replaced, proper operation was verified, there were no active alerts, and the vehicle was in excellent condition. Shortly after this repair, multiple vehicle systems stopped functioning, including all cameras, navigation/gps, and software/firmware updates. Tesla service later diagnosed the vehicle as requiring replacement of the hw3 vehicle computer at a cost of approximately $3,066. The loss of camera functionality disabled or affected multiple driver assistance features that rely on the camera system. The vehicle has been unavailable for approximately one month while awaiting repair. During discussions with Tesla service regarding the diagnosis, I was informed verbally by the service manager that they see similar hw3 computer-related issues on a regular basis (approximately every other week). I cannot independently verify that statement, but I am including it because it contributed to my concern that this may not be an isolated incident. I am not asserting the root cause of the failure. I am submitting this complaint because the loss of the vehicle’s camera system and related driver assistance functionality may represent a potential safety concern, and I believe NHTSA should be aware of this incident.

This is reference my existing odi number 11742309. On June 4, 2026, while driving slowly into a parking space, the vehicle experienced a sudden and unintended acceleration. I applied the brake, but the vehicle did not respond as commanded, resulting in a collision. The vehicle was approximately 3 months old at the time of this incident.

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).

I purchased a new 2026 Tesla Model Y standard and took delivery on approximately 30 may 2026. Within the first week of ownership, the vehicle displayed multiple safety-related warnings, including: * steering assist reduced * power braking assist reduced * automatic emergency braking unavailable * lane departure avoidance features unavailable * automatic vehicle hold disabled the warnings have occurred more than once. They initially disappeared and then returned on a later drive. Both incidents occurred while the vehicle was operating with full self-driving (fsd) engaged. During the most recent occurrence, while parking at less than 3 mph, the vehicle’s braking assistance appeared reduced and the brake pedal required significantly more effort than normal. As a result, I nearly struck a curb because the vehicle did not slow as expected. The warnings indicated that increased steering and braking effort may be required. Because the vehicle is brand new and these warnings involve steering, braking, and collision-avoidance systems, I believe this creates a significant safety risk. I no longer feel the vehicle is safe to drive until it is inspected and repaired. Tesla has been notified and a service request has been initiated.

The contact owns a 2026 Tesla Model Y. The contact stated that while driving at 65 mph, with the autopilot feature engaged, the vehicle approached a lane closure as big, metal arrow road signs where on the road indicating the road closure. The contact, who was distracted at the time, expected the vehicle to acknowledge the road closure and switch lanes. The vehicle failed to recognize the chevron barricade lights on the highway and the vehicle ran through the road signs without warning. The contact was forced to take over and stop the vehicle due to the failure. Due to the failure, the front, driver side mirror detached from the vehicle. The contact exited the highway and inspected the damage to the vehicle. Despite the failure, the contact managed to drive the vehicle home. The service center was notified of the failure and an appointment was made to have the damages repaired. The cause of the failure had yet to be determined. The vehicle was not repaired. The failure mileage was approximately 21,000.

A 2023 Tesla Model Y experienced a sudden electrical failure while parked/being prepared for use. Multiple warnings appeared on may 26, 2026, including high-voltage system service required, low-voltage electrical system power reduced/vehicle shutting down, cabin climate control limited, and steering/braking/parking brake functions degraded. The vehicle could not be driven normally and required flatbed recovery. The failure created a safety concern because the vehicle showed high-voltage and low-voltage faults together with steering/braking/parking brake warnings and could have left the vehicle disabled without reliable restart or parking brake function. The manufacturer service center inspected and repaired the vehicle after several days. The component should be available through manufacturer service records, and screenshots of the warnings, tow/recovery, and service records are available.

Am reporting a serious safety concern involving a 2025 Tesla Model Y, VIN [xxx] . On [xxx], the vehicle was being driven on [xxx] in columbus, ohio while the driver was traveling to columbus preparatory academy. During the trip, the steering reportedly stopped responding properly, and the driver struggled to control the vehicle. Witnesses at the scene reported that the driver appeared to be fighting with the steering and trying to stop the vehicle or prevent it from drifting. The vehicle then lost control, accelerated or continued moving uncontrollably, flipped/rolled over, and sustained major damage. A police report was created by the columbus police department under report number [xxx]. The vehicle involved is a 2025 Tesla Model Y. This was a serious crash involving a possible steering malfunction, loss of control, and rollover. The vehicle is currently located at pro-cars, 400 stimmel rd, columbus, OH 43223. Tesla was contacted after the incident, and the representative advised that the vehicle should be taken to a collision center. I am filing this complaint because the incident appears to involve a potential safety defect affecting steering control and vehicle control. I request that NHTSA review this matter as a possible vehicle safety defect. The vehicle has not yet been repaired, and I am attempting to preserve it for inspection. I have supporting materials including the police report, photos/videos, witness information if needed, towing/storage documentation, and communications regarding the vehicle. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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Tesla 2026 Model Y was involved in a severe motor vehicle accident directly caused by a critical software and/or hardware malfunction of Tesla’s full self-driving (fsd) system. At the time of the incident, the vehicle’s full self-driving (supervised) software suite was actively engaged and driving the vehicle. While navigating, the system suffered an abrupt and uncommented control malfunction. Despite prompt attention, the autonomous system executed an erratic, uncorrectable maneuver that overrode human intervention thresholds, completely failed to respond safely to the immediate driving environment, and directly caused a collision.

I am reporting a recurring and unresolved electrical/safety issue with my new Tesla Model Y. The issue has occurred 5 times within the past 4 weeks and affects multiple systems simultaneously. When the issue occurs: * the air conditioning stops working completely. * the driver-side front and rear windows cannot be rolled down or up. * the driver seat adjustment may not function properly. The problem appears intermittently. It may disappear temporarily and then return hours or days later. Tesla service has inspected the vehicle multiple times, but the issue continues to recur. This creates a significant safety concern because: * the driver window may not function during rain or emergencies. * the ac may fail during extremely hot weather. * the driver seat may not adjust properly, potentially affecting safe vehicle operation and driver visibility. * the intermittent nature of the failure makes the vehicle unpredictable and unreliable to operate safely. The issue has not been permanently resolved despite repeated service visits. I am concerned there may be a broader electrical or control system defect affecting vehicle safety.

Component or system that failed: the gps navigation system and cellular connectivity module in my 2024 Tesla Model Y (VIN: [xxx] ) have intermittently lost signal and become completely nonfunctional multiple times over the past month. Tesla's service documentation indicates this affects the vehicle's connectivity hardware or managing software. The vehicle is available for inspection upon request. Safety risk: loss of gps navigation while driving creates a safety hazard when traveling unfamiliar routes, in low-visibility conditions, or during emergencies. Loss of cellular connectivity simultaneously disables Tesla's roadside assistance and the vehicle's calling capability. The vehicle acknowledges this risk by displaying a yellow caution alert reading "poor gps location accuracy — additional attention may be required" on the primary touchscreen while in motion, with no advance warning before the failure occurs. Reproduced or confirmed by a dealer or service center: yes. On may 22, 2026, Tesla service columbia-two notch rd, 6301 two notch road, columbia, SC 29223, confirmed this as a known issue. The service advisor stated Tesla is aware of the defect but has no repair available and instructed me to submit in-car bug reports each time it occurs. Inspected by manufacturer or others: yes, by Tesla's service center on may 22, 2026. No independent, police, or insurance inspection has been performed. Warning lamps or prior symptoms: a yellow triangle caution icon with the message "poor gps location accuracy — additional attention may be required" appears on the primary touchscreen during each failure, but only after gps has already degraded — no advance warning is given. This has occurred four times since April 2026, with each event lasting between 15 seconds and over one minute. Unknown as to specific trigger conditions. Photographic documentation has been retained. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I reporting a potential safety-related defect involving my 2023 Tesla Model Y performance. Since shortly after purchasing the vehicle in April 2026, it has repeatedly been unable to successfully install Tesla software updates. The updates download, but the installation repeatedly fails. I have attempted installation multiple times under appropriate conditions, including adequate battery charge, stable WI-fi, vehicle reboot, removal of usb devices, and installation directly from the vehicle touchscreen. The failures continue. Tesla evaluated the vehicle and documented the failed software installation. Tesla also identified a possible issue involving the hw3 car computer and prepared an estimate of approximately $3,000 that included replacement of the vehicle computer, diagnostic work, and labor. I am concerned because Tesla vehicles rely extensively on their onboard computers and software for vehicle operation, safety systems, driver-assistance functions, security updates, bug fixes, and manufacturer-issued corrections. Because this vehicle cannot successfully install software updates, I am concerned it may be unable to receive safety-related corrections or updates that other vehicles are receiving. This is not simply an infotainment issue. The failure appears to involve the vehicle computer itself and has continued despite repeated troubleshooting and Tesla service involvement. I believe NHTSA should evaluate whether defective hw3 computers or related electronic systems can cause repeated update-installation failures and potentially prevent affected Tesla vehicles from receiving safety-related software updates or recall remedies.

On may 8, 2026 at approximately 1:15 pm in [xxx] , my 2023 Tesla Model Y unexpectedly locked with my [xxx] infant inside during approximately 100°f weather. I briefly exited the vehicle while charging to disconnect the charging cable. My authenticated phone key remained inside the cabin. Immediately after unplugging the charger, the vehicle activated walk-away door lock and locked all doors despite the phone key remaining inside the vehicle. I was locked out without access to my phone and had to ask a stranger to call 911 and contact my husband. Cabin temperatures rapidly became dangerous for an infant. My husband was eventually able to remotely unlock the vehicle using the Tesla app, narrowly avoiding forced entry by emergency responders. The vehicle failed to detect the phone key inside the cabin and improperly initiated locking while a vulnerable child occupant was present. This created a serious risk of heat injury or death. The vehicle also failed to prevent the lockout despite an infant occupant being seated in the second row, raising concerns about whether rear-seat occupancy detection and child safety protections functioned properly during the event. I am requesting investigation into Tesla’s proximity sensing, phone key detection, walk-away lock behavior, and child occupant safety protections during charging/unplugging events. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).