529 of the
7,374 complaints filed about the Tesla Model Y
are about the electrical system —
7% of everything owners reported.
The worst model year for it is 2021.
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.
NHTSA complaint #11758131 — an unverified report by a vehicle owner.
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
NHTSA complaint #11757845 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11757772 — an unverified report by a vehicle owner.
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)
NHTSA complaint #11757562 — an unverified report by a vehicle owner.
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)
NHTSA complaint #11757531 — an unverified report by a vehicle owner.
The contact owns a 2026 Tesla Model Y. The contact stated that while driving at an undisclosed speed with the Full Self Driving Mode activated, the vehicle struck the garage wall, damaging the rear passenger’s side door. No injuries were sustained. The contact stated that the dealer had previously provided mobile service to replace the camera and that a second dealer, Tesla White Plains (250 Tarrytown Rd, White Plains, NY 10607), had performed a hard reset on the vehicle due to phantom braking; however, the failure persisted. The dealer was made aware of the failure but canceled an upcoming appointment and informed the contact that there was no failure found. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 13,001.
NHTSA complaint #11757495 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11757226 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11756565 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11755995 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11755660 — an unverified report by a vehicle owner.
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
NHTSA complaint #11755642 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11755397 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11755238 — an unverified report by a vehicle owner.
The contact owned a 2026 Tesla Model Y. The contact stated that while her daughter was driving 16 MPH with the self-driving feature activated the vehicle failed to stop at a stop sign. Seconds later the contact's daughter attempted to disengage the self-driving feature and then depressed the brake pedal to stop from entering a right-turn-only minor road stop-controlled intersection. However, the front passenger’s side of the vehicle was struck by another vehicle, before striking another vehicle. The contact stated that the air bags on the passenger’s side of the vehicle deployed. The contact's daughter sustained minor leg injuries. Medical attention was not needed, and the contact was not sure whether occupants of the other vehicle required medical attention. A Police report was filed. The contact stated that the vehicle had not detected the oncoming traffic and that the crash could have been prevented. The vehicle was towed to a tow yard where it was deemed a total loss. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 13,986.
NHTSA complaint #11754808 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11754296 — an unverified report by a vehicle owner.
My 2021 Tesla Model Y (VIN: [XXX]) 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. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11753908 — an unverified report by a vehicle owner.
The contact owns a 2022 Tesla Model Y. The contact stated that while the vehicle was operating in the self-driving feature, the vehicle bumped into a shopping cart holder while attempting to park into a parking space, prompting the contact to take control of the vehicle. The rear bumper on the driver's side was impacted. No property damage was reported. The vehicle came to a complete stop upon impact. No air bag was deployed. There was no warning light illuminated. A Police report was not filed. The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 32,074.
NHTSA complaint #11754035 — an unverified report by a vehicle owner.
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
NHTSA complaint #11753772 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11753834 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11753870 — an unverified report by a vehicle owner.