Electrical System Problems of Tesla Model Y - part 1

Since a 2026 over-the-air software update, every time I disengage Tesla full self-driving (supervised) while driving, on any road and at any speed, the center touchscreen shows a large pop-up titled "why did you intervene?" with four buttons (navigation, parking, critical, other) and a voice-message option. It covers about a third of the display, including navigation, media controls and, during parking, the camera view. It does not clear on its own while driving; it stays until the driver taps an option or shifts into park. Photos attached. Disengagements happen at the most demanding moments: correcting the system, avoiding a hazard, merging or parking. This prompt draws the driver's eyes and hand to the touchscreen at exactly those moments, on every disengagement and several times per drive. I believe this creates a foreseeable visual-manual distraction risk and conflicts with NHTSA's visual-manual driver distraction guidelines. This is a particular safety concern because I regularly drive this vehicle with young children on board. Any distraction at the moment I take over from fsd puts them at risk. There is no setting to disable this prompt; the only way to avoid it is to stop using fsd, which we paid for. The car is collecting training feedback from drivers in real time at the expense of attention to the road. I request that NHTSA review this and that Tesla make the prompt dismissible, defer it until the vehicle is parked, or make it optional. Reproducible on every fsd disengagement; not inspected by a dealer. Vehicle software 2026. 27. 11, fsd (supervised) v14. 3. 10.

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On xxx, my 2021 Tesla Model Y displayed a low-voltage warning. Approximately 15 minutes later, the vehicle became completely inoperable and we could not open its doors. Our children's car seats were inside and inaccessible. We were stranded with two young children, ages [xxx]. [xxx] and [xxx]. My wife ultimately had to transport the children without their car seats because we could not retrieve them. This loss of vehicle and door access after such limited warning created a serious safety risk. Tesla roadside assistance was dismissive, including after escalation to [xxx], who was described as part of its senior leadership team. The vehicle was serviced at Tesla's [xxx] center. We incurred $364 for towing and $139 for transportation and lost more than five hours. Please investigate the electrical and door-access failure. It may be relevant to NHTSA investigation pe25010, but I do not know the underlying cause or whether it is the same issue. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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Subject: formal safety complaint – Tesla fsd failure and missing video evidence vehicle: 2024 Tesla Model Y long range VIN: [xxx] fsd version: fsd (supervised) v14. 3. 10 incident date: October 9, 2026 location: [xxx] dear NHTSA, I am filing a formal safety complaint regarding a suspected failure of Tesla's full self-driving (fsd) system. On xxx, my wife activated fsd while our Tesla Model Y was parked in a parking lot. The vehicle began reversing and collided with another stationary vehicle behind it. Although the other vehicle showed no visible damage, our Tesla suffered significant deformation to its trunk and rear body panels, with estimated repairs of $5,000–$15,000. My primary concern is that fsd apparently failed to detect or respond appropriately to a stationary vehicle directly behind it. Such a failure could have caused serious injuries if a pedestrian or child had been present. Additionally, I requested my vehicle data from Tesla, but the "video recording" section was empty. I am concerned about the missing footage and the availability of critical evidence needed to determine what happened. I respectfully request NHTSA investigate the suspected fsd object-detection and reversing safety failure. Request preservation and review of relevant Tesla camera recordings, fsd logs, vehicle telemetry, and collision data, if available. Examine why no video footage was included in my Tesla data download. Determine whether similar incidents indicate a broader public safety concern. This incident has caused substantial financial damage, inconvenience, and emotional stress. I believe an independent investigation is necessary to protect other Tesla owners and the public. Sincerely, [xxx] [xxx] [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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This is my 13th complaint regarding this car. When I drive out of internet connection, the car switches to "navigating offline" and is pretty inaccurate, even if the destination showed while I had connectivity. Tesla makes you pay for "premium connectivity" to get apps that you may already have a subscription or phone access to. I do not have premium connectivity and was under the assumption that I would not be stranded if I drove out of internet range. But it has happened to me before, especially in the mountains. Since the car has to be towed if it gets a flat, and Tesla "always" knows where my car is, I consider it a safety concern (especially as a single woman) to be out of contact. I drove to big bend national park on 9. 27. 26 and returned on 10. 4. 26 and had several instances of "navigating offline".

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On October 1, 2026, immediately after my 2021 Tesla Model Y installed Tesla software update 2026. 32. 7, the driver-assist computer entered a continuous boot loop. All eight vehicle cameras went black (confirmed in the vehicle's service mode), the rear camera displays 'camera temporarily unavailable,' autosteer will not engage, and the vehicle shows alert ui_a114 for degraded driving visualization. All camera-dependent driver-assist and safety features are inoperative. The vehicle had zero driver-assist or camera issues before the update. I performed a scroll-wheel reboot, a driver-assist system reset, and a full service mode software reinstall, none of which resolved the issue. Tesla's remote service diagnosed a 'hardware failure' of the full self-driving computer and quoted $2,701. 32 for replacement, without explaining how firmware corruption from their own update was ruled out. A manufacturer software update disabling all cameras and driver-assist safety systems is a safety defect.

On September 26, 2026, my 2024 Tesla Model Y (53,000 miles) suffered a total electrical failure. The vehicle became completely unresponsive — it would not power on or enter drive mode — and my family was locked outside with no way to access the vehicle. Tesla service mode diagnostics (run September 29) showed: hvp lv power test fail with "contactor power failure detected" — the high-voltage battery contactors would not close. Also present: drive-unit graceful power-off alert (di_a063), bms error, and charge-port communication loss (cp_a060). Tesla has issued campaign bulletin sb-24-16-005 (September 2024) acknowledging that a defective component inside the high voltage controller on 2023-2024 model 3/y "may prevent the vehicle from entering into drive mode, or may cause a graceful poweroff. " Tesla classified this as non-safety-related. However, a sudden total loss of vehicle power — which other owners report occurring at highway speeds — creates crash risk, and inoperable doors create an entrapment and access hazard, especially for families with small children. I request NHTSA investigate whether this defect warrants a safety recall.

It has been towed to Tesla 5 times in the last 6 months. The car will all of a sudden do all of the following. Hood pops open tailgate starts to go up and down the car lights start to flash - all of them the heater goes on 100 percent the seat and steering wheel warmers are activated the horn blows constantly the windows go up and down the stereo goes on full blast I cannot stop any of these things from happening. Tesla has had the car 5 times and said it is all repaired but it comes back every time. I cant trust driving the car anymore.

While I was driving on the highway in rainy weather, my electric vehicle suddenly made a very loud blast or popping sound and immediately stopped working. The vehicle lost power, and all electrical functions became inoperative while I was in the middle of the highway. This created a serious safety hazard because I was unable to continue driving or operate the vehicle normally. There was no visible damage to the exterior of the vehicle. The tires were intact and appeared to be in normal condition, with no tire damage or other external damage that could explain the sudden loss of power. The vehicle stopped unexpectedly while driving in wet conditions, without any apparent external impact or physical damage.

Every time the driver takes over from full self-driving (supervised), a mandatory "why did you intervene?" feedback dialog appears on the center touchscreen. The dialog cannot be dismissed: it does not time out, and the driver must either tap one of the on-screen options (preference / discomfort / navigation / critical) or record a voice note using the steering-wheel microphone button before it goes away. This forces the driver to look at and interact with the touchscreen immediately after a takeover, exactly when full attention should be on the road. Earlier software versions dismissed this prompt automatically after a few seconds; recent updates made it mandatory and it even blocked other screen controls. It is a driver-distraction safety hazard caused by the ui design. The prompt appears on every single fsd disengagement, I. E. Daily. Software version 2026. 26. 6. 5.

On September 13, 2026, my 2023 Tesla Model Y (13,300 miles) displayed a high voltage system alert stating the vehicle may not restart and service was required. I brought the vehicle to the Tesla service center for diagnosis. The technician found the alert occurred when the brake pedal was applied and identified electromagnetic interference affecting signal integrity in that circuit. On September 17, 2026, a ferrite suppressor was installed to address the interference, and the technician noted the alert cleared. He advised that if the concern returned, replacement of the chmsl (center high mount stop lamp) may be required. The same day I picked up the vehicle after this repair, the high voltage system alert recurred. Both occurrences happened while the vehicle was operating under full self-driving (fsd), not under manual braking. My foot was not on the brake pedal either time. This detail was not accounted for in the original diagnosis, which was based on manual pedal actuation as the trigger. I have raised this discrepancy with Tesla and requested a re-diagnosis based on fsd-commanded brake actuation, including review of vehicle logs for both incident timestamps. My safety concern is that the alert explicitly warns the vehicle may not restart, and the underlying cause has not yet been correctly identified, since the initial repair did not resolve the issue and failed the same day. The vehicle and its diagnostic logs are available for inspection upon request. The problem has been reproduced and confirmed by the Tesla service center (two visits, same fault). It has not been inspected by NHTSA, police, or insurance. No warning lamps or symptoms were noted prior to the first occurrence on September 13, 2026.

2023 Tesla Model Y – hw3 autopilot computer/camera system failure my 2023 Tesla Model Y has approximately 54,000 miles and is equipped with the Tesla hardware 3 (hw3) autopilot computer. After receiving Tesla's fsd v14 lite software, the vehicle began intermittently losing camera-based driver-assistance functionality. I observed an app_w141 ecu thermal issue alert. The vehicle subsequently experienced aps_w134_appmia and aps_w135_appcritical alerts indicating that the autopilot processor secondary was losing communication with and detecting a malfunction of the autopilot processor primary. When the problem occurs, camera/vision functions and driving visualization become unavailable or degraded, and the vehicle has reported self-driving features limited, cruise control unavailable, adaptive headlight features unavailable, and other driver-assistance limitations. In Tesla service mode I have documented the primary autopilot processor repeatedly changing between init, critical and coreboot while the secondary processor remains nominal. A das reset can temporarily restore communication, but the failure returns. Tesla has proposed replacing the entire hw3 car computer at a cost of approximately $3,120. I am concerned that this may represent a safety-related hw3 computer failure, particularly because I observed an ecu thermal alert and because the failure removes multiple camera-based driver-assistance and safety functions. I have photographs documenting the alerts and processor states and have an open Tesla service case.

Today, the Tesla updated while my wife was in the car. During the update all electrical systems went down and the car was locked from the inside and out making it so she could not get out. Because the electrical systems were down while the update was going she did not have any ac either. So she was locked in the car without ac in 107f weather. This is an extreme danger to her health and should be taken care of right away. As well if you had dog mode on it would have locked dogs in the car without ac. This is also an extreme danger because there is not a safe dog mode. The truth is it could be disable at any time without the ability to interrupt or stop the update.

Water entusion in the tail light bar. After time causes corrosion of the circuit board on the turn rear turn signal making it inoperable. Tesla doesn't have an open document nor a recall. Was quoted over $1300 to replace the assembly. I did a teardown of the root cause. Glue sealing the through hole for the clip that holds the badge of the car on the rear didn't adhere. Water entered the assembly and dripped onto the circuit board, over time corrosion occurred. My rear left turn signal went out on a car that just turned a year. I have documented the location of the fault with pictures.

Component: the car computer (Tesla hw3 / "full self-driving computer 3," which houses the autopilot computer and gps) failed during a scheduled overnight over-the-air software update from version xxx in early xxx. The update failed to install, and from that point all cameras were black including the backup camera, navigation was frozen, and every driver-assistance feature was unavailable: autopilot, fsd, automatic emergency braking, forward collision warning, lane keeping, and blind spot monitoring. The failed unit was returned to the owner and is available for inspection. Safety risk: the vehicle remained drivable with crash-avoidance systems and the federally required backup camera disabled. The only indication was a camera-unavailable message; there was no clear warning that aeb and collision warning were off. The vehicle was driven about three weeks in this condition while awaiting parts. Confirmed by manufacturer: yes. Tesla remote diagnosis determined the car computer required replacement. Tesla remotely cancelled and re-pushed the update on xxx; the download stalled at 0 b/s and never installed. Tesla service in [xxx] replaced the car computer on xxx at owner expense ($2,489. 48; outside basic warranty, goodwill declined). Tesla's repair notes state the loss of all camera images and autopilot capability occurred "after a failed software update. " prior warnings: none. No warning lamps or messages before the update; the vehicle operated normally on xxx owner resets, power-off, and 12v disconnect did not restore function. Assessment: the autopilot computer failed during a manufacturer-pushed software update. Owner forums and automotive press reported numerous similar hw3 computer failures in summer 2026 following Tesla software releases. No crash, fire, or injury. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

On August 27, 2026, the 12v/low-voltage battery in my Tesla completely failed without any prior low-voltage warning displayed on the screen or sent to the mobile app. After placing my infant/toddler in their car seat in the rear and closing the door, the vehicle's electronic systems shut down entirely. The electronic door handles and key access became completely inoperative from the outside, locking my child inside the vehicle with no way for me to open the doors or retrieve them. The manual override releases are inaccessible to a young child buckled in a car seat, and the vehicle provided zero advance warning that the low-voltage battery was at critical failure. This severe design flaw creates an immediate, life-threatening entrapment hazard.

The front left safety system issue. Warning light has come on causing the car, unable to deploy airbags in the event of an accident according to what it’s stating.

My 2026 Tesla Model Y has repeatedly developed contamination/haze inside the enclosed forward-facing windshield camera area, resulting in camera visibility/cleaning warnings and potentially reduced availability or performance of driver-assistance features. Tesla has already cleaned the internal forward-camera/windshield area twice, but the condition continues to return. The contamination is located inside the camera enclosure/inboard windshield area and cannot be corrected through normal exterior vehicle cleaning. Tesla is now requesting approximately $60 to clean the area again rather than addressing why the contamination repeatedly develops. I am concerned that this is a recurring defect affecting forward-camera visibility rather than ordinary owner maintenance. The forward cameras are used by the vehicle’s driver-assistance systems. I am also aware of reports from other owners of newer Model Y vehicles experiencing recurring haze/contamination in this same enclosed camera area. I am requesting that NHTSA document and evaluate this issue for a possible defect trend in 2025+ Tesla Model Y vehicles.

The vehicle has suffered recurring, critical electronic and low-voltage safety system failures that first began under the original factory warranty and have now resulted in a complete central computer (hw4) failure. History of defect: 1. Feb 2025 (~7,170 miles): initial failure of the 16v low-voltage network and safety systems. Tesla replaced the vcfront body controller and low-voltage battery under warranty. 2. May 2025 (~14,543 miles): safety equipment failures required replacement of the cabin radar and seat belt buckles under warranty. 3. Sept 2026 (~80,000 miles): total hardware 4 (hw4) central computer failure. This resulted in the complete loss of all active safety systems, forward collision warning, automatic emergency braking, autopilot, backup cameras, and power management features. Safety risk: the complete failure of the hw4 computer completely disables essential safety functions required for safe vehicle operation on public highways. Tesla has denied warranty coverage for the hw4 replacement despite the issue originating from early low-voltage controller failures during the bumper-to-bumper warranty period. Additional critical safety incident: during the computer/system failure, I experienced a power steering malfunction accompanied by an on-screen warning. The steering wheel became extremely hard to turn/stiff, making it nearly impossible to steer the vehicle safely.

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.

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).

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).

Rear passenger door is impossible to open. On using the exterior latch, the window retracts partly and the door opens 1/2 inch only. From inside, nothing works and a passenger would be trapped. Please have Tesla fix this - a very known problem, there are youtubes videos complaining about this door problem - always the same door too - so Tesla knows this is a problem.

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.

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.

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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.

On or about xxx my Tesla Model Y downloaded fsd version 14 lite. One day after downloading the software, I used fsd and the new software caused the computer to overheat. This killed the car computer and made fsd, adaptive, cruise control, lane keep assist, reverse camera, and many other functions, including gps and navigation inoperable. My car’s warranty expired in January of this year and Tesla will not cover the replacement car computer. There are hundreds of other complaints of this issue reported online on [xxx], reddit, facebook, etc. In the 2nd quarter Tesla earnings call, [xxx] declared that hardware 3 equipped Tesla vehicles would not be able to support autonomous driving with full self driving. He stated every hardware 3 vehicle will need to be updated with a hardware 4 computer and cameras. Since my hardware 3 computer failed, I requested the hardware 4 computer and cameras to be installed, but Tesla denied this service even though [xxx] said it was a requirement. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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.