Electrical System Problems of Tesla Model Y - part 2

?to whom it may concern, ?I would love some help with an issue I'm having with Tesla. I purchased my 2020 Model Y used from Tesla and the car was and is still under bumper-to-bumper warranty. I've had dozens of issues with the built-in dashcam and sentry modes that have stemmed from an update Tesla made, which has also resulted in my usb drives causing repeated errors. And while the usb drive error may not seem bad, it causes issues with the sentry mode and dashcam where they don't work and these features are some of the main reasons that I purchased the car, also making the car valuable to me and my family. Despite this, even though the car is still under warranty, Tesla service? in sacramento is trying to charge me for my ninth service center visit for this same issue. Here's a list of my visits for this same (and related) issue: - 4/4/2024 - 4/19/2024 - 7/24/2024 - 10/25/2024 - 11/20/2024 - 12/18/2024 - 2/5/2025 - 3/6/2025 I have invoices for each, and again, each ?correlating visit ha?s been under warranty and now even though my car is still under warranty, Tesla is trying to charge me for attempting to fix this for my ninth visit for this same issue. C?an you please help me with this ongoing issue that Tesla is now trying to charge me for even though the car is under warranty?.

See all problems of the 2020 Tesla Model Y 🔎.

I bought a Tesla Model Y 2025 and got my car delivered on [xxx] I barely drove it and within a week, I noticed all sensors stopped working (all cameras and camera-related functions stopped working, including the legally mandatory backup camera for new cars, gps has stopped working, making the premium connectivity package I paid not usable). Not only was I not able to use the self driving capability, which I paid $8000 for, but also the car lacked the most basic safety features. I contacted Tesla service center, they refused to admit that the sensor malfunction is a security concern, and still put me on an appointment three weeks later (Dec 13). After the first appointment, they did not fix the problem at all and noted it was a major computer issue, as reported by several media outlets [xxx] ). So my brand new car has a defective core component upon delivery. I was scheduled to meet them after they get the computer part on Dec 27. The appointment was rescheduled to Jan 14 again for missing parts. During the process, I found some weird tricks online and semi-fixed my car’s navigation but the sensor issues still exist. And on Jan 14 again, they claimed the computer part was missing again and I had to wait until that upcoming weekend to fix it. To summarize the situation: I was given a car that is defective upon delivery on its most important core component for 2. 5 months, when the car lacks even the basic legally required safety features, as well as premium features that I already paid off! during the process, I also spent a lot of time dealing with their customer service, and rescheduled appointments (I even had to drive to their service center several times to get a loaner and had to return the loaner early before they did not have parts to fix my car). Their negligence on safety, and promised features is simply astonishing and unacceptable. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Tesla remotely disabled my vehicle twice (February 28, 2025, and March 6, 2025) without prior notice, legal justification, or a court order. February 28, 2025 – Tesla disabled my vehicle for 3 days my Tesla Model Y was remotely locked without warning, leaving me stranded and unable to use my vehicle. Tesla refused to provide a reason or reinstate access for three days. March 6, 2025 – Tesla disabled my vehicle again & attempted repossession Tesla again remotely disabled my vehicle, then sent a tow truck for repossession without legal notice. I called the police, who confirmed Tesla had no legal repossession order. Tesla refused to restore access, forcing me into a coerced “voluntary surrender. ” how this posed a safety risk I was stranded in public locations without notice or transportation alternatives. Had the vehicle been in motion, this could have caused a road hazard. Tesla’s lack of due process denied me the chance to dispute the action before losing my vehicle. Confirmed by law enforcement & Tesla’s own records police intervened on March 6, 2025, and confirmed Tesla had no valid repossession order. Tesla has refused to provide written documentation or a legal explanation for these actions. Regulatory concerns Tesla’s unilateral ability to disable vehicles raises serious consumer safety issues: what prevents Tesla from disabling vehicles arbitrarily? what legal safeguards exist to protect owners from unjustified manufacturer lockouts? should federal law restrict Tesla from disabling vehicles without court approval? request for investigation Tesla’s remote disabling practice endangers consumers and should be urgently investigated by NHTSA to determine if federal safeguards are needed.

See all problems of the 2023 Tesla Model Y 🔎.

The heat pump stopped working twice, which requires a trip to the service center and the repair to restore function is a minimum of $3,000. The vehical has no heat at all, no defrost, no cabin heat nothing! this defect happens in the coldest parts of winter and leaves the owner stranded wherever this occurs. The first time was at 52,000 miles. It wouldn't turn on. The heat pump seized. The second time was on a trip, it blow out all the freon and stopped working in waterloo, iowa. I was 4 hours from home and it was -4f outside. The car had 136,000 miles. Many others have had heat pumps go out in the same situation. . . Dead of winter. The repair is $3,000 to get heat back into the car. The heat pumpscare clearly defective or not big enough and are destroying themselves every other winter in minnesota. This is 1. Dangerous because you can't defrost your windshield. 2. You cold freeze to death in very cold conditions. 3. A very expensive repair pn a part that should last mire than a 1 or 2 years. Home heat pumpsvlast 10- 24 years!!.

See all problems of the 2021 Tesla Model Y 🔎.

I am submitting a complaint regarding a serious safety issue with my 2023 Tesla Model Y. The vehicle experienced a sudden and complete power loss while in operation, creating a hazardous situation. Below are the details of the incident: •component/system failure: the vehicle’s electrical system failed, leading to a shutdown. The following alerts were displayed on the screen: •vcfront_a191: electrical system power reduced – vehicle shutting down •vcfront_a192: electrical system unable to support all features – switching off features to conserve energy •bms_a151: vehicle may not restart – service is required •di_a227: please wait while high voltage system powers up •safety risk: the unexpected shutdown posed a serious safety risk. If this had occurred in high-speed traffic, it could have led to a crash, endangering my safety and that of others on the road. •reproduction of issue: the issue has not been reproduced yet, but it is an ongoing concern. I have not received a resolution from Tesla at this time. •inspection by authorities: the vehicle has not yet been inspected by Tesla, law enforcement, or insurance representatives. However, I am willing to make it available for investigation. •warning signs: there were no prior warning signs before the failure. The alerts appeared shortly before the vehicle lost power completely. This issue raises concerns about the reliability and safety of Tesla’s electrical system. I urge the NHTSA to investigate this matter to prevent potential accidents caused by similar failures in other vehicles.

- computer appears to stop working in colder temperatures (or random). - all cameras, including rear view camera (needed for backing up) and side cameras stop working. Error message shown on touch screen saying cameras are not available. - all road sensing information including other cars, lanes markers (everything) disappears from touch screen dashboard and no longer works. There are no longer any warnings for anything. - gps tracking stops and no longer tracks along with the car. Car becomes a safety hazard due to poor visibility. Especially evident during reverse.

Alerts regarding vehicle steering, stability, emergency braking, lane control traction, received all at once and the Tesla ai advisor indicated others were reporting the same. No other vehicles in lanes around us showed up on the vehicle lcd screen as normally they do too. Car did not brake normally (foot off accelerator and no braking) and handling seemed different although we were very cautious. Tried to resolve with screen reboot and multiple drives as ai advisor suggested and it did not self resolve. Contacted Tesla service and they suggested hcu was faulty (hydronic control unit) and abs modulator. Also wanted to look at vehicle low voltage circuit. They scheduled me for a first available $1600 service on Feb 26th (in 9 days). See attached. Seems like a significant safety issue and defect and should be recalled before some gets hurt, especially if others are seeing this too.

How did Tesla pass the safety standards for the position of rear door handles to manually open the vehicle? the vehicle gets into an accident or the car plunges into water - and this almost always results in a non-responsive/deal battery. *** the rear passengers are hurt and you want them to find that little piece of rubber mat hidden in a cranny, lift it, and then use their nail to open the plastic cover to reach that piece of junk to manually open the door? ** no way !! manual door handle in the rear doors should be placed where it's easily accessible, just like you have on the front doors. This is truly a life threatening safety issue with how Tesla has hide the rear passenger manual door handles. Please force Tesla to issue a recall and fix the issue by providing an easy access to manually open the rear door in emergencies. The car gets on fire and rear passengers may burn alive because they won't be able to open the door due to the current system of a super hidden rear door handle. Thanks, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Total loss of heat in vehicle. Receiving error code vcfront_a447, cabin climate control system requires service, heating/cooling limited or unavailable. This is a significant safety concern in minnesota's climate and as we're experiencing -10 or colder windchills.

See all problems of the 2022 Tesla Model Y 🔎.

The computer suddenly failed on [xxx] due to a short circuit caused by a manufacturing defect in certain 2024-25 Model Y vehicles. This causes nearly all advanced functionality and safety features of the car to fail completely, including all cameras, parking assist, full self-driving, autopilot, autosteer, autopark, cruise control, lane keep, lane departure warning, blind spot monitoring, auto windshield wipers, map, gps navigation and more. Also, the car does not sleep, resulting in excessive battery drain. The problem is widespread. It's this problem: [xxx] as a result the vehicle is significantly less safe to drive. Tesla continually delays service appointments due to unavailability of parts. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2024 Tesla Model Y 🔎.

Automatic emergency braking stopped working. Parking assist stopped working. Back window is dismal. You can't see anything behind through the window. All cameras stopped working and it poses a safety hazard.

On 12/16/2024 my vehicle received software update 2024. 39. 15, after installing the update I went to the grocery store and noticed nothing was working in the car except basic driving functionality. Cameras were showing up as a black screen. Tacc, aurosteer and fsd supervised were no longer working as well as aeb,fcw,bsm,ldw,lkas and the gps had me in the middle of the ocean, headlights on during broad daylight. I informed a service center by my home and they simply didn’t care, I took it to another service center 50 minutes away and they took two days to do repairs and diagnostics, I was told the computer had shorted out and the technician replaced the car computer and ai4 (hw4) computer system which runs safety features. A software update physically pushed from Tesla should not be shorting out computers on its vehicles, I heavily rely on the cameras and safety features since living in a state where nobody knows how to drive (lol). I hope my vehicle is fixed and this issue doesn’t persist anymore.

I was told by Tesla that a computer system update installed by Tesla burned out the ap4 computer on the car. This affects all cameras, navigation, automatic lights and much more.

Around Dec 16 all cameras in my 2024 Model Y Tesla stopped working and it has not worked since that date. This affects many systems, the most important of which is that I now have no rear backup camera. I believe vehicle manufacturers are required to have functioning back up cameras. I notified Tesla service on 12/16 and was told there was a known computer hardware problem which would cause my incident. Tesla service told me they were unable to obtain the needed computer replacement for a month at least. They informed me there was no safety risk, but I disagree since I don’t have a functioning back up camera, nor lane change camera assistance. Also the display panel is very dark and impossible to read most of the time, posing another safety concern. Why has Tesla not issued a public statement about this problem, and why has NHTSA not mandated a formal recall?.

Vehicle information: • make: Tesla • model: Model Y • year: 2024 description of the problem: after a software update pushed by Tesla, the ap4 computer in my 2024 Tesla Model Y shorted out, causing a complete failure of all systems controlled by this computer. The following safety-critical and driver-assist features have become non-functional: 1. Cruise control (adaptive or otherwise) 2. Forward collision warning 3. Lane departure warning 4. Lane keeping assistance 5. Blind spot warning 6. Parking collision warning 7. Full self-driving and auto park features 8. Cameras required for autopilot functionality additionally, because the gps system has failed, the vehicle's navigation system is inoperable. This impacts Tesla's unique route planning feature that sets up supercharger stops during long journeys. Without a functioning navigation system, I cannot properly plan my travel or locate charging stations, which severely affects the usability of the vehicle. Safety concerns: the failure of these systems, especially safety features like forward collision warning, lane keeping assistance, and blind spot monitoring, puts both the driver and others on the road at risk. Losing access to safety-critical functions after an update is unacceptable and poses a serious danger to vehicle occupants and surrounding traffic. Incident details: • the issue occurred immediately following a software update. • Tesla pushed the update remotely without providing any warning or indication of potential risks. • the failure appears to be related to a hardware short in the ap4 computer, directly caused or exacerbated by the update. Desired outcome: • a thorough investigation into Tesla's software update process and its effect on vehicle hardware and safety systems. • a resolution that prevents similar failures in other vehicles and ensures system updates do not compromise vehicle safety or critical functionality.

Bought my Tesla Model Y on [xxx]. Exactly one month later on [xxx] I start my car to find that none of the cameras are working. This means autopilot, cruise control, rear camera, blind spot monitoring and many more safety features are completely down. In addition the gps does not function meaning my car is not trackable and maps don't work, another safety concern and main reason we bought the car. This is a widespread issue that Tesla service centers have been informed about from Tesla that it is a bad computer that needs to be replaced - in a 1 month old car. My only option is to wait for a computer to be assigned to me which is at earliest on January 21st of 2025, almost 6 weeks without a fully functioning brand new $46,000 car with only 1400 miles on it. Tesla are also unwilling to make any kind of restitution such as a loaner car, or a refund for the full self drive and connectivity packages I just purchased but cannot use as my car is broken. Here is a link to an article showing this - [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Vehicle information: • make: Tesla • model: Model Y • year: 2024 description of the problem: after a software update pushed by Tesla, the ap4 computer in my 2024 Tesla Model Y shorted out, causing a complete failure of all systems controlled by this computer. The following safety-critical and driver-assist features have become non-functional: cruise control (adaptive or otherwise) forward collision warning lane departure warning lane keeping assistance blind spot warning parking collision warning full self-driving and auto park features cameras required for autopilot functionality additionally, because the gps system has failed, the vehicle’s navigation system is inoperable. This impacts Tesla’s unique route planning feature that sets up supercharger stops during long journeys. Without a functioning navigation system, I cannot properly plan my travel or locate charging stations, which severely affects the usability of the vehicle. Safety concerns: the failure of these systems, especially safety features like forward collision warning, lane keeping assistance, and blind spot monitoring, puts both the driver and others on the road at risk. Losing access to safety-critical functions after an update is unacceptable and poses a serious danger to vehicle occupants and surrounding traffic. Incident details: • the issue occurred immediately following a software update. • Tesla pushed the update remotely without providing any warning or indication of potential risks. • the failure appears to be related to a hardware short in the ap4 computer, directly caused or exacerbated by the update. Desired outcome: • a thorough investigation into Tesla’s software update process and its effect on vehicle hardware and safety systems. • a resolution that prevents similar failures in other vehicles and ensures system updates do not compromise vehicle safety or critical functionality.

The autopilot computer failed. This has rendered all safety systems and camera on the vehicle inactive, including the rear view camera, all forward and side cameras so no active safety systems are functioning. This includes crash avoidance, lane keeping, blind spot warning, cruise control, and rear camera during reverse, the vehicle is nearly impossible to reverse as the view is terrible with no cameras.

Vehicle cameras stopped working. Navigation stopped working. Screen also stopped working for a time. Was able to get it back on but it went off multiple times since. If I can't see the screen, I can't tell how fast I'm going to do anything else. Cameras control many of not all of the safety systems. So those are all inoperable. Issue is being reported across multiple forums all over the internet as "short in ap4 module. ".

Ap4 computer failure has led to navigation, cameras, blind spot monitoring, lane departure and other systems being inoperable. Tesla has stated they don’t have the parts to fix and have pushed out my service repair time twice already. Issue reported on December 4th, since then no time table for repair has been given. Tesla keeps stating the car is operable, leaving out the facts it’s dangerous to drive due to small rear windows and blind spots based on the cars design to work with operable cameras that give the drive clearer angles to view.

The computer is not working which connects to the forward collision warning system, navigation, and all safety when it comes to driving. I am still waiting to hear back from Tesla about the problem and haven't had a resolution.

The main display went completely dark and required rebooting of the car when attempting to move the car from the parked state to drive state. This was the second occurence of this issue.

Safety is the first think that I believe.

On or around December 1 2024, the * computer** in my 2025 Tesla Model Y shorted out, causing a **complete failure** of all systems controlled by this computer. The following safety-critical and driver-assist features have become *-functional**: 1. **cruise control** (adaptive or otherwise) 2. **forward collision warning** 3. **lane departure warning** 4. **lane keeping assistance** 5. **blind spot warning** 6. **parking collision warning** 7. **full self-driving** and **auto park** features 8. **cameras** required for autopilot functionality additionally, because the * system has failed**, the vehicle’s **navigation system** is inoperable. This impacts Tesla’s unique route planning feature that **sets up supercharger stops** during long journeys. Without a functioning navigation system, I cannot properly plan my travel or locate charging stations, which severely affects the usability of the vehicle. **safety concerns:** the failure of these systems, especially safety features like forward collision warning, lane keeping assistance, and blind spot monitoring, puts both the driver and others on the road at risk. Losing access to safety-critical functions after an update is unacceptable and poses a serious danger to vehicle occupants and surrounding traffic. **incident details:** • the issue occurred **immediately following a software update**. • Tesla pushed the update **remotely** without providing any warning or indication of potential risks. • the failure appears to be related to a hardware short in the * computer**, directly caused or exacerbated by the update. **desired outcome:** • a thorough investigation into Tesla’s software update process and its effect on vehicle hardware and safety systems. • a resolution that prevents similar failures in other vehicles and ensures system updates do not compromise vehicle safety or critical functionality.

Tesla has told me the ap4 computer has failed in my car which has resulted in them having to replace it. I had this issue start right around thanksgiving. I scheduled the soonest appointment available for 12/16 however Tesla contacted me and moved my appointment because they stated that the part was unavailable at this time and should be delivered by 01/20/25. Not offering me a rental or anything on my brand new '24 Tesla. It has just over 1,000 miles on it and is ~3 months old now. This issue impacts: emergency braking, blind spot detection, lane keep/centering, assisting with parking, automatic high beams and wipers, cruise control/ adaptive cruise control, vehicles built in gps to be stuck at one location every time, has made my touchscreen not automatically brighten or dim, my auto dimming mirrors be to dim in most driving conditions, constantly fail to install system improvements and safety updates, and because my vehicle keeps trying to do this, it has caused increased battery drain as well. This has increased the safety risk of my vehicle tremendously. . . Tesla has not seemed to publicly acknowledge the issue yet either.

Components failing - reported as central computer. This made the vehicle turn signals and backup cameras fail as critical components. These two elements were/are completely non-functional. Additional less critical safety functions that have been disabled include blind spot monitoring and cameras, both forward and reverse emergency braking, and pedestrian alerts. My safety was put at-risk due to camera failures while driving and backing out of parking spaces. These vehicles are designed with poor and minimal visibility due to their cameras compensating for visibility shortcomings. You cannot adequately see proximity to other vehicles or pedestrians when cameras are not active. This particular impacts reversing when backing in and out of parking spots since the rear windshield is so small and poorly angled. Drivers have reported that the cameras for them are failing mid-drive leading them to not know where other vehicles were next to them and making unsafe lane changes thinking their warning systems were active. The vehicle component has not been inspected by anyone as there was thankfully no actually accident or incident due to the failure. Tesla has not inspected the vehicle due to no availability for 3+ weeks and they will not consider human contact to expedite review. There are now 100s of community reports of the same defect on online communities all showing failures on same-day or within 24 hours of each other. There were no warnings prior to the failure. The symptoms simply stopped working. It required a phone call to Tesla support to even receive an accurate error code. Tesla is claiming a "short" in the main computer system of the vehicle. This occurred for myself and dozens of others all within several hours of each other in the early morning hours of Friday November 29th 2024. Suspicion is that that this was due to a software update from Tesla.

Cameras not working with latest software update on November 26th. Without even inspecting the car in-person, Tesla service agent told need new ap4 computer on 2024 Model Y which is 1 month old . I think Tesla knows about this issue and there is lot of wait time for getting the ap4 computer. Tesla service advisor states - car is totally safe to drive with just mirrors till appointment in few weeks. As per NHTSA, if a car is not having a backup camera, that is a safety violation and there are lots of Tesla vehicles driving without backup cameras. No backup camera, navigation, battery life dying faster. It seems like a liability to me to drive this way and very negligent to me.

While driving, the system prompt electrical system failure. Pull to the road side. Within 20 or so seconds, the car lost power. About 10 minutes or so later, the whole car (emergency light, door, trunk etc lost power too. Consider the car lost driving power in seconds, then lost emergency light can be highly dangerous to all parties. Before the failure, the car shows "front motor is disabled, power is reduced, ok to drive" this ok to drive turns out not ok to drive, misleading. Now the car is fixed (yet to pickup), reason front drive unit and pyro fuse were replaced (new car, but with refurnished part).

On Nov 23, 2023, I was reversing car from my driveway in the morning. Car started giving warnings with issue on all its cameras. While reversing car, it will give error that rear view camera not available. While giving left/ right turn signal, it is showing blank screen for that view. All other safety features like blind spot detection, lane assist are not working at all. I also started getting error message that emergency brake is not available. I have been contacting them for immediate repair/ provide loaner car from same date (11/23/2023). Earliest appointment date given is Dec 11, 2023. This is not acceptable at all. It is very dangerous to drive the car without those safety futures. I am also concerned on any other issues which it has not reported. I don't feel safe to drive the car.

The arm felt on the driver side while I’m driving. Also, there is issue with the camera and the screen electrical problem.

One day the cameras, gps, and sensors just stopped working and haven’t worked since. Been 4 weeks.

Auto parking feature malfunction and backed right rear quarter panel and bumper into a yellow pole in a parking spot.

My Tesla Model Y experienced a complete computer failure, rendering all active safety systems inoperable. This included backup cameras, speedometer display brightness, and collision avoidance system. After receiving assistance from Tesla service, the issue was diagnosed as a shorted computer. A computer replacement was performed, resolving the problem. I am submitting this case as a reference for potential investigations.

I had my computer replaced (ap4) on the Model Y. After a software update around Nov 13, my computer glitched. The car was drivable, but no functionality (cameras, navigation. Etc). After the computer was replaced it seems fine. Just wanted to report after the fact. Thanks.

Driving incident with auto high beam: I was driving on the freeway early in the morning with the auto high beam feature activated. However, due to heavy fog, I wanted to turn it off. I asked my passenger to help me find the option on the screen. Unfortunately, she clicked the wrong button, which completely turned off all the lights while we were driving. This caused a moment of panic, and I had to slam the brakes, realizing I had veered off the road. Thankfully, there was no one behind us. While it was an oversight on my passenger’s part, I can’t help but wonder: shouldn’t there be a warning or a disabled button while driving, especially in the dark? I’m not sure if this qualifies as a safety issue, but it certainly felt life-threatening at the moment. Had there been another vehicle behind us or if we had hit a divider, the situation could have been much worse. Suggestion for improvement: to enhance safety, I suggest implementing a feature that disables the off button in light controls while the vehicle is in motion, especially in low-visibility conditions. Additionally, a clear warning message could pop up if a driver attempts to adjust the lighting settings while driving, ensuring that safety remains the top priority.