Electrical System Problems of Tesla Model Y - part 1

Driver side front window auto rolled back up after pressing the button to once to roll it down. This happened while driving while the right hand was on the steering wheel. The left hand got caught inbetween the window glass and the window frame as it auto rolled back up on its own. It caused bleeding and pain to the left hand.

See all problems of the 2024 Tesla Model Y 🔎.

The contact owns a 2026 Tesla Model Y. The contact stated that the Model Year was advertised with a front trunk emergency release and interior lighting. The contact stated that after purchasing the vehicle, the contact became aware that the vehicle was not designed with the front trunk emergency release or interior lighting, which the contact considered a safety issue and a violation of fmvss no. 401. The Tesla service center was contacted and confirmed that the Model Year and other vehicles were no longer designed with the missing parts. The manufacturer was notified of the issue. The failure mileage was approximately 570.

Vehicle information 2025 Tesla Model Y approx. 30,000 miles purchased new ~11 months ago incident description while driving at highway speed, the front trunk (frunk/hood) of my 2025 Tesla Model Y unexpectedly opened. The hood immediately flew upward, flipped backward over the windshield, and shattered the windshield. The frunk had not been opened in approximately two weeks prior to the incident. The vehicle had not undergone recent service or repair involving the hood or latch assembly. There were no prior warnings or alerts indicating that the frunk was unlatched or not latched properly before driving. The hood appeared fully closed prior to the trip. However, after the incident once we pulled over, a bolt was completely out of place, as shown in my video. Even if the primary latch was faulty, the secondary latch / catch should have prevented the hood from opening all the way and slamming the windshield. This failure to notify improper latching created an immediate and total obstruction of forward visibility at highway speed and posed a serious crash risk. The vehicle has approximately 30,000 miles and is less than one year old. Given Tesla’s prior recall related to hood latch detection issues, I am concerned that either: •the latch system failed mechanically, and/or •the vehicle failed to properly detect and warn of an unlatched hood. This is a significant safety event and could result in serious injury or death if it occurs in traffic.

See all problems of the 2025 Tesla Model Y 🔎.

The vehicle display flashed red and then the vehicle turned off completely while in traffic with no ability to change gear, operate the electronic door releases, or turn the hazards on. Safety was put at risk because insufficient notice of failure was given so it was impossible to get out of traffic, the vehicle could not be put in neutral so could not be pushed out of traffic, further the hazard lights could not be turned on so I had to stand in traffic waiving people around the vehicle. Because the electronic door releases didn't work, the doors could not be opened from the outside, had a front window not been open, it would have been easy to trap our child in the car. The dealer confirmed that the failure took place from vehicle logs but was unable to reproduce the problem. The dealer/manufacturer inspected the vehicle. Prior to this happening the vehicle showed warnings that power was reduced and vehicle may not restart about 20 minutes prior to the event, but the warnings disappeared after a minute. Even though Tesla confirmed the failure, they refused to diagnose the problem or fix it so the vehicle remains dangerous.

See all problems of the 2023 Tesla Model Y 🔎.

Tesla Model Y 99,000 km it is known issue with many driver of same model and milage that wire harness connected to oil pump gets hot and damage. This can also cause fire. Many people have been complaining about similar issue on facebook group.

Vehicle experienced pcs (power conversion system/DC-DC converter) failure, rendering it completely undrivable—no 12v power, cannot charge or start. Pcs is physically integrated inside high-voltage battery pack per service manuals. High-voltage battery warranty active (8yr/120k miles). Tesla service denies coverage citing "associated component" in vague emails—provided only general warranty table, no specific exclusion language despite repeated requests for exact quote/formal written denial. Escalated to managers: offered "view-only" internal service bulletin on screen at meeting—no print/copy/photo allowed. Explicitly refused formal written denial letter.

All safety and most computer related features in the vehicle have failed. Cruise control, backup cameras, all other cameras, the navigation (assuming this is also impacting the projection of remaining battery life as my car always thinks it is at my home), warning signals for approaching obstacles/dangers, cruise control of any kind does now work, lane departure warning has failed, and automatic windshield wipers do not work. This happened without warning and was not related to an update. On January 13, 2026, the car worked in the morning and then all of these issues started happening. I made a Tesla service appointment, but they are not able to see me until February 3, 2026.

Observed intermittent center display/infotainment computer (mcu) crashes/reboots where the center display becomes blank and then restarts. In recorded events, when reverse was selected during an mcu reboot interval, the rearview camera image did not display until the reboot completed. Recorded rear camera unavailability during reverse was approximately 10–17 seconds. Mcu crash/reboot behavior was observed to be repeatable, including predictable occurrence while the vehicle was in the built-in service mode. After a factory reset, repeated/double boot behavior was also observed. Additional observations: - with the turn signal activated, light leakage was observed in the side repeater camera image (glare/bloom present in the camera view). - with each windshield wiper sweep, the forward camera image was observed to briefly flicker to a purple/green distorted state and then return to normal. - during driving, the on-screen message “auto lane change unavailable” was observed. A separate rear camera symptom has also been observed: intermittent freezing/stale frames (image appears not to update). This rear camera freeze behavior has not yet been captured on video. These conditions have been documented by video/screenshots and reported to the manufacturer/service center for inspection/diagnosis. No crash or injury occurred. The vehicle is currently located at the manufacturer’s service center and is available for inspection upon request.

See all problems of the 2020 Tesla Model Y 🔎.

Urgent safety defect – child injury 2026 Model Y, rear right window. While a child was entering the vehicle and the door was closing, the power window trapped the child’s fingers. Pinch protection failed to reverse. The vehicle locked and the windows closed while the child’s fingers were trapped. Injury occurred. Request immediate safety investigation, preservation of vehicle logs, and written findings. Vehicle must not be altered prior to inspection.

I got into my car two days ago and the computer screen was black. I have tried everything to reset it, holding down both scroll wheels with the brake pressed for up to 2 minutes, unplugging the low voltage battery overnight and plugging it back in, and even doing the hard reset at the disconnect under the rear passenger seats and my computer will not turn on. I can't see any information about my speed or how much charge I have, I can't turn on climate controls and it's the middle of winter and I live in the mountains of colorado. I can't even open my glove box without the screen. From everything I read, it sounds like an mcu failure, my vehicle has the newer mcu2. Tesla quoted about $800 for a tow and it sounds like the replacement costs could be $2500+.

See all problems of the 2022 Tesla Model Y 🔎.

Tesla decided to remove the safety unlock illuminated button from its front trunk (frunk) sometime in mid 2025. This can be a safety issue which was present in earlier models and against the federal motor vehicle safety standard (fmvss) 401, mandating an interior release mechanism for enclosed trunks to prevent entrapment. I contacted Tesla and they told me that my vehicle was made after Tesla decided to remove this safety feature.

A few weeks ago my seatbelt censor started acting up, and then two weeks later that my heater quit. They blamed chewed wiring because of soy based coatings, and set its not in the warranty and accused rodent damage since the rear seat was eaten. I got the call during diagnosis demanding I bring the loaner car because they wanted $1,349. 07 which I did not have because a 9/11 first responder and don't have other insurance accept mandated state minimums, they told me bring the loaner back, on the way home fsd worked till I got towards my putnam county rural route 22 when power steering fsd and power breaks died. I skidded at 25 mph managed to get to park and plug it and leaving it this. So the tech put the plugs together and made the situation worse by plugging chewed harness together. No heat, transport, no car, no door dash money for me, no medical appointment and cant risk losing all steering. When Tesla works, it works very and great car. Had they refused to use soy coatings and stayed with rubber coatings this issue would not be here. How many fsd crashes are result of rodent damage?.

The contact owned a 2023 Tesla Model Y. The contact stated that a software update (2025. 44. 25. 5) was performed on the vehicle, which was for a temporary free self-driving mode. The contact stated that while driving at approximately 75 mph, the vehicle independently accelerated sideways and crashed into the highway's concrete retaining wall. The air bags deployed upon impact. The contact was taken to the hospital by ambulance, where he was treated bruised left knee, cracked ribs, and several other bruises to various parts of his body. No property damage was reported. A police report was filed. The vehicle was towed from the scene to an independent mechanic, where it was deemed a total loss. Neither the manufacturer nor the service center had been notified of the failure. The failure mileage was approximately 22,500.

Incident summary: car computer (hw3) suffered internal hardware failure on 12/17/25 following software update 2025. 44. 3. While the media screen and rearview camera functioned, the autopilot board (apb) was "mia. " Tesla randolph (invoice #3000s0015357298) confirmed the internal failure and replaced the unit. Safety risk: failure disabled safety-critical adas: automatic emergency braking (aeb) and forward collision warning. Driving visualizations were severely compromised; the vehicle failed to detect pedestrians or lane markings while in motion, creating an immediate collision risk. The car’s active safety "intelligence" was essentially blind despite the camera feed being visible on the screen. Inspection & contradictions: Tesla service confirmed the "internal failure" (12/19-12/23). Note: the service manager verbally claimed "no codes," but the official invoice explicitly states technicians "found multiple alerts present. " part was retained by Tesla. Warning symptoms: failure followed a software reboot loop. Symptoms (mia board/power cycle failure) match recall 25v-002. Vehicle had only 36,289 miles. Reporting as potential hw3 defect expansion.

The car stopped in a busy freeway saying electric issue and doesn’t give sufficient time to drive to shoulder. This is the 2nd time this happened within 2 weeks. First time, Tesla said high voltage controller had an internal issue with voltage sensing. The hv controller was replaced along with pyrotechnic fuse. Tesla assured this shouldn’t repeat and it repeated again. This has kept us in a catastrophic situation. I request immediate attention to this error and matter.

Date of incident: December 8, 2025 mileage at failure: approx. 580 miles vehicle status: at Tesla service center since December 9, 2025 (no repairs started; status shows “preparing”) failure summary while driving 40–45 mph on a busy three-lane road in California, approaching a signalized intersection, the vehicle suddenly displayed multiple red warnings, a “reduced speed” alert, and numerous fault messages. Within 3–5 seconds, propulsion was completely lost. Incident details using residual momentum, I steered across two lanes into a nearby retail parking lot. The vehicle stopped at an angle, partially obstructing traffic. Towing delay & safety risk the vehicle remained stranded for ~4 hours. A flatbed tow arrived ~2 hours later but could not load the vehicle due to inoperative tow mode. A second dolly-equipped tow truck was required, adding ~90 minutes. During this time, the vehicle continued to block traffic and posed a safety hazard. Component/system failure complete propulsion loss and failure of major electrical/control systems, including doors, frunk, trunk, tow mode, and non-responsive key card and phone key. Vehicle remains inoperable. Safety hazard sudden shutdown in a center lane near a major intersection left almost no opportunity to maneuver safely. Extended roadside immobilization and inoperative tow mode further increased risk. Warning prior to failure none, except 3–5 seconds of simultaneous red warnings and fault messages. Problem status ongoing and unresolved. Tesla has not diagnosed or repaired the vehicle and continues to delay the estimated repair date. Inspections vehicle is under evaluation at Tesla service center. No repairs, police, or insurance inspections have been conducted.

I’m reaching out to document and summarize an incident that occurred in sanford, florida, and to ask for the appropriate next steps and any documentation you may need from me. Incident summary (sanford, FL – appaloosa court – Dec 2, 2025): in the early morning on Tuesday, December 2, 2025 (around 5:00–5:15 a. M. ), a fire occurred at a residence located on [xxx] . A Tesla located in the garage was reported as being involved, and the fire spread to the garage that totaled the house the vehicle was reportedly charging in the garage when smoke/fire was noticed. Emergency responders (sanford fire department and sanford police) responded to the scene. The incident resulted in property damage and at least one injury reported as non-life-threatening (per local reporting). Fire forensics stated that the fire started and caused by the Tesla around the charging plug area by the rear left passenger door. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

To the national highway traffic safety administration, I am filing a formal complaint regarding a dangerous safety defect in the 2021 Tesla Model Y. On December 2, 2025 at approximately 4:25 pm, my vehicle suffered a sudden, complete electrical shutdown while I was driving, with no warning and no opportunity to reach safety. Critical details: the vehicle displayed an electrical system message, then instantly powered down. I lost all ability to steer or move the vehicle, which remained immobilized in active traffic. Hazard lights did not function, leaving the vehicle unmarked and invisible to oncoming vehicles. Electronic systems failed, requiring manual release of the driver door. The incident occurred at dusk and blocked the roadway, placing myself and others at significant risk. This failure presented an immediate threat to life and safety. I have since discovered that other Tesla owners have reported similar abrupt electrical or drive-unit shutdowns, suggesting this may represent a broader systemic defect. I am formally requesting that NHTSA investigate whether this issue meets the threshold for a safety recall and whether Tesla’s systems contain a defect capable of causing sudden, uncommanded shutdown while driving. Thank you for your prompt attention to this matter. I am prepared to provide all supporting documentation, including incident details, screenshots, timestamps, and service correspondence.

I parked my Tesla vehicle in a friend’s driveway. When I returned and opened the driver’s door, I entered the vehicle and attempted to put it into drive. At that point, the vehicle display went completely blank and the vehicle became inoperable. I then attempted to open the door from inside the vehicle, but the door would not open and I was unable to exit the car. I was effectively locked inside the vehicle. I contacted Tesla customer support and remained on the call for approximately 1. 5 hours before receiving assistance. Tesla customer support confirmed that the issue was caused by failure of the 12-volt battery. At the time of the incident, the outside temperature was below 0 degrees centigrade. The incident occurred in cedar rapids, iowa. There was no prior warning or notification from the vehicle or the Tesla mobile app indicating that the 12-volt battery was at risk of failure. The failure resulted in loss of vehicle function and inability to exit the vehicle, creating a serious safety concern.

See all problems of the 2021 Tesla Model Y 🔎.

I have repeatedly had electrical failure in the vehicle in the form of a "reduced power alert" which renders the vehicle with significant limitation to drivability. This places the vehicle in "limp mode" and this frequently occurs on the highway. Once this alert appears the vehicle has limited propulsion, limitations to steering and braking as well as other electrical systems. It has been to the dealership for repair on 4 occasions without remedy. It is leaving us on the highway in a dangerous situation repeatedly. It's not a one time event. There were 20 alerts showing on the screen when I limped it into the dealership once again on [xxx] having nearly wrecked on [xxx] just before the [xxx] exit. The reason this is so dangerous is the failures occur at higher speeds such as highway driving. Leaving one with an immediate loss of forward motion as if you've hit the brakes but vehicles behind you have no warning. This is going to end up with someone getting rear ended or worse. Social media indicates it is a prevalent and not well understood recurring problem. Tesla has been quietly repurchasing vehicles from angry owners. Dreadful. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Approximately one month after purchasing a new vehicle, the steering system suddenly failed without any warning. While the car was parked at home and started normally, the steering wheel became extremely heavy, hot, and then completely locked. The vehicle could not be steered at all and became entirely non-drivable. Multiple warning messages appeared, including warnings related to reduced steering assist effectiveness and lane departure avoidance being unavailable. This occurred at approximately 1,000 miles. The failure happened suddenly with no prior symptoms. This defect created a serious safety risk. If this had occurred while driving, it could have resulted in loss of vehicle control and a potential crash. The vehicle was not drivable and had to be towed to a Tesla service center. The issue has been reported to Tesla and is currently under inspection. The exact cause of the failure is unknown at this time. A sudden and complete loss of steering control on a nearly new vehicle is extremely dangerous and indicates a potential defect in the steering system or related electrical components.

Center console usb component part#1522264-00-b, available for inspection. Usb-c charging port that had been plugged in for more than a year, started smoking and wire melted while vehicle was parked. If this would have happened while my wife was on the highway on the way to work and smoke suddenly appeared, it would have cause her to be startled and degrade her ability on a busy highway. This would have most likely have created a traffic incident in memphis on highway 240. I asked the dealer if there were any reports of defective part and I was told no. I brought the components in to show but the parts manager or service staff were not interested in the details or my concerns that smoke had been detected and that it melded the metal piece of usb-c charger to that Tesla part. I bought another replacement part from Tesla, but I am not utilizing the charging port for fear of smoke/fire. There were no warning lights or indication prior to the day of event where my wife observed burnt plastics and visible smoke. On November 26th called me in a panic that the car was smoking. She went out to our vehicle during her break and she smelt burnt plastic and observed smoke from the middle console. Shortly after she called me at my work, and after making sense of what she was telling me, I told her to unplug the usb-c but the parts manager melted of and the metal piece was stuck in the charging port. I left my work and after 30 minutes got to the vehicle, the burnt plastic was still evident but smoke no longer visible. I detached the panel with the part unplugged from power source, thank you youtube for the diy video. Pictures will be included with this report, but format doesn’t allow for video upload. Video will be provided upon request.

Tesla removed the lighted emergency frunk (front trunk) release button and its wiring from this vehicle and other similar newer builds. The elimination of this key safety feature is a clear violation of the u. S. Federal motor vehicle safety standard fmvss 401 for interior trunk release; requiring all new passenger cars with trunk compartments (rear and front) to have a way for someone trapped inside to escape. There is currently no method to open a latched front trunk cover from inside this new vehicle.

After charging the vehicle threw error code “bms_a079 unable to charge - maximum charge level reached reduced maximum charge level - schedule service”. The car would no longer charge and had to be taken in for service. Tesla advised the high voltage battery needed to be replaced. Replacing the high voltage battery resolved the issue.

In my 2026 Tesla Model Y long range, there is no emergency release in the frunk (front trunk). I do believe there is a law that requires this. What if the unthinkable happens and someone gets stuck inside of it? I have seen others post about not having it as well, so it is definitely not limited to a small number of vehicles. I do not even see the harness for the emergency release inside of the panel. This is a huge safety issue.

While the car was in operation a message popped up with flashing red light and said drive unit issue car powering down. It went into neutral. Turns out the inverter and rear drive unit had to be replaced.

On November 16, 2025, my Tesla Model Y experienced a complete and dangerous failure while driving. The touchscreen went totally blank and stopped responding. All essential driving information and safety functions were lost, including speedometer, gear selection, turn signals, hvac/defrost, and vehicle controls. At the same time, the car made a continuous loud humming/buzzing sound and displayed a low coolant warning. This made the vehicle unsafe to operate because I could not see my speed, cannot shift properly, and could not access any safety controls. This is the second time my vehicle has experienced a critical malfunction. The first major incident occurred on July 28, 2025. A complaint has been filed with the NHTSA under tracking number 11676662. Both failures involved sudden loss of essential functions, raising serious concerns about electrical, cooling system, or display system defects. I am reporting this because it is a serious safety risk and could lead to vehicle loss of control, inability to signal, or inability to see speed or gear position. The problem has been reported to Tesla and is pending evaluation at a Tesla service center. Warning messages and symptoms appeared at the moment of failure with no prior signs.

Detailed description of the defect: Friday incident: while picking up my son from school, the vehicle abruptly disabled multiple safety and driver-assist features. The car rolled backward on a slight incline, failed to display any surrounding vehicles on the fsd visualization, and retained accelerator input even after I removed my foot from the pedal. The vehicle continued to speed up slightly in drive and reverse without my input. Soft resets did not resolve the issue. Monday incident (collision caused by malfunction): on Monday morning, the same malfunction occurred. As I reversed into my garage with the door opening, the car again held the accelerator input after I lifted my foot, causing the vehicle to continue moving backward unexpectedly. The vehicle struck my garage door, causing property damage and a dent to the trunk. This was not driver error. It was unexpected propulsion after pedal release — an extremely dangerous condition.

I am filing this complaint regarding a high-voltage battery defect in my 2021 Tesla Model Y. The vehicle has been diagnosed by Tesla service, and both the technician and service advisor confirmed that the high-voltage battery has an internal short. This is a critical failure involving the primary energy/storage system of the vehicle. Despite acknowledging the internal failure, Tesla is denying warranty coverage for the battery replacement. They have stated that failure is internal, and is not caused by anything external the failure was not caused by an accident, environmental exposure, or improper use. This appears to be a component-level defect within the 2021 Tesla Model Y battery packs considering Tesla has issued prior service bulletins for Model Y high-voltage battery quality issues in adjacent Model Years, this may indicate a broader pattern of battery defects. They are trying to charge people over $12,000 for battery replacements that should be covered by Tesla due to poor workmanship and materials used. Many have had to have multiple battery packs replaced.

My vehicle experienced multiple safety system malfunctions before a minor collision occurred. While driving, the car displayed warnings indicating that traction control had been disabled, followed immediately by a warning that the automatic vehicle hold/brake hold was disabled. These failures happened before any impact. At the same time, the vehicle’s cameras were not functioning correctly, and the vehicle did not provide any forward collision warning. The automatic emergency braking system also did not activate. Because these systems failed, the vehicle did not warn, slow down, or brake to avoid a collision. After the collision, the vehicle showed several additional safety system failures. These included automatic emergency braking unavailable, and repeated safety restraint system faults affecting both the front left and front right restraint systems. The airbags did not deploy even though conditions suggested they should have, and afterwards the vehicle displayed persistent airbag and seatbelt system error icons. The restraint system appears to have gone offline. The vehicle is currently unsafe to drive due to failures in braking, traction control, perception/camera systems, forward collision warning, automatic emergency braking, and the airbag/restraint systems. These failures occurred before the collision, contributed to the collision, and continued afterward. The manufacturer’s service center has declined to provide towing or a loaner or rental vehicle while the safety defects are being investigated, which will take about 30 days.

On October 2, my Model Y battery was replaced with a defective cell. Tesla service center replaced the battery. The vehicle could not charge or operate, making it unable to be driven. Today, November 2, while driving my car, my Tesla abs system and other battery components experienced total failure while driving. For a brief period of time, I was unable to brake completely and my vehicle felt like it was skidding. At the time this occurred, my 1 year old daughter and pregnant wife were in the vehicle. This could have been much worse.

My 2022 Model Y, 213k miles, battery health 77%, no issues until beginning of November 2025. After Tesla’s update, bms_a079 popped up, capped charge at 22%. No dead cells, no imbalance—pure software bug remotely triggered by Tesla. Service refused written diagnosis, only said ‘nine thousand dollars for new battery. Risk of stranding.

On 11/01/2025 at (12:15 pm]) my Tesla Model Y (VIN: 7saygaee8rf983245) was **parked in park/hold mode** in the winchester park parking lot, los angeles ,California the * navigation was set to an address in the center of the park**. The address on the address log of the car navigation system. The **Tesla gps navigation destination was set to a point marked in the middle of the park** (not a parking spot or road). **without any driver input** (no accelerator pedal pressed, no hands on wheel), the vehicle **suddenly shifted into drive, jumped the curb, and accelerated approximately more than 30 feet] into the park grass**. This caused **damage to wheels, and all the passenger side of the vehicle to impact with a large rock placed in the park **zero pedal input** — confirmed by driver and will be verified in Tesla server logs. No injuries. No other vehicles involved. **root cause**: **full self-driving (fsd) software / navigation system** incorrectly engaged **lane keeping assistance** while parked, triggering **unintended acceleration** via **speed control** logic. The car was on software update and suddenly disappeared. The car **autonomously drove itself** toward the gps point **from a complete stop**. Police report filed to lapd (case #251102900293). Tesla vehicle data report requested. **request NHTSA investigation** into * navigation-induced unintended acceleration from park**.

First cold day of the year and the heater stopped working. With the heater not available the windshield couldn’t be cleared it would always fog and cover the windshield blocking the view infront of the vehicle. Next couple days it was even cooler and the windshield was frozen with no way of heating and clearing the view. Yes the issue was reproduced by the service center upon taking the vehicle there once the vehicle was a little warm. Tesla service center mentioned there was an internal fault in the compressor which they can’t be clear so have to replace a compressor, exv valve, pressure temperature sensors and coolant. Vehicle was parked when I tried to turn the heat on in the morning it would just blow cool air. No warning before the failure. Once the compressor faulted it would give a warning “vcfront_a447” cabin climate control system requires service. And just blow cold air everytime the vehicle is started. If turning on heat from the phone app or inside the cabin it would blows cold air for about 10 mins then it will show the warning lamp.

The driver rear left side door is unclear electrical control and broke so I cannot open the door from the outside. I have a child inside. This is an extreme safety hazard were an accident to occur.