Automatic Emergency Braking Problems of Tesla Model Y - part 2

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.

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At 10:11 pm driving on 95 south at 78 miles per hour the car stopped on its own violently braking and swerved across the intersection. Then we kept getting alerts about the cameras. I have pictures of the alerts. There was no obstruction on the highway. Car just braked for no reason. Very scary.

See all problems of the 2023 Tesla Model Y 🔎.

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.

What component or system failed or malfunctioned, and is it available for inspection upon request? there were multiple component and system failures that were experienced. My vehicles autopilot and full self driving took over causing my vehicle to crash head on into a tree. How was your safety or the safety of others put at risk? my safety and others were at risk because I had no control over my vehicle. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? no. The car was taken into custody of the insurance company. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no.

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. ".

All cameras stopped working. With this, all safety features are not working. I can’t see to back up at night. No collision avoidance, no lane departure warning, high beams don’t stay on, turn signal doesn’t stay on. It has been two weeks and Tesla has no fix. There was no warning, just noticed it one day as I was driving it and was very dangerous in dark snowy conditions. I called Tesla service immediately and they gave me an appointment for following week. Then next day I got message from them that there are a large number of vehicles having the issue and they said they don’t have a fix for it and moved my appt out 7 weeks. I have gotten no help from them and I told them I don’t feel safe driving the car. They have not provided another car.

• 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 vehicle suddenly starts to slow and slams on the brakes without warning when there is no danger.

See all problems of the 2022 Tesla Model Y 🔎.

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, specifically [xxx]. I scheduled the soonest appointment available for 12/13 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 2500 miles on it and is ~2 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 too 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. Additionally, the vehicle came to a stop on the highway when my wife and I were in the car on the night of [xxx], forcing us to perform an emergency pullover and abandon the car 22 miles north of rochester, mn overnight. This has increased the safety risk of my vehicle tremendously. . . Tesla has not seemed to publicly acknowledge the issue yet either. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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.

While driving between 50-55 mph the Tesla applied emergency breaking even though there was nothing in front of us and no risk of accident. The car went from 55 to about 5-10mph in the matter of a second. We are lucky no one was directly behind us or it would have led to a high speed rear end accident.

In a 90 mile drive I experience phantom breaking 4 different times. No car was in front of me, in fact nothing at all was in front of me when my car slammed on the brakes 4 separate times. One time there was a car somewhat close behind me. I also twice experienced audible warnings and flashing alarms to take control immediately of the car when my hands were on the wheel and I was already in control of the car, it was alarming and shocking to get these alarms while already in control and driving. I believe this car, as currently configured, can pose a danger to other drivers on the road.

I was driving on [xxx] across kansas and my car suddenly braked hard. I was in cruise control when it occurred. I was not in automated driving mode as I don’t have that feature. This happen once before earlier this year on a two lane highway when a truck was coming toward me in the opposite lane. This time I was on a 4 lane highway with a large dividing median and there were no cars near me. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

When using cruise control (Tesla calls it autopilot) emergency braking is applied for no known reason. At one location on my morning commute at highway speed it occurs every day at the same location, at other times it is random. This increases the risk of a rear end collision with a following vehicle. I have not reported this to Tesla. A friend reports that his 2023 Model Y also brakes unexpectedly at that same location where it occurs for me. If driving without cruise engaged the problem does not occur.

The issue appears to be an acceleration malfunction and brake failure in my 2021 Tesla Model Y. The vehicle is available for inspection upon request. On [xxx] at [xxx], while waiting for the garage door to open, the car experienced an unknown unintended acceleration malfunction, surging forward uncontrollably. It didn't wait for the garage to open, crashed through the garage into the family room, causing significant structural damage to the framing and door. The city of eastvale declared the house unsafe, sealing it off. I am now homeless and staying with friends temporarily. During the crash, the airbags did not deploy, and the abs system failed, preventing an emergency stop. The car stopped 4-5 feet away from my wife, who was on the sofa, posing a critical life-threatening situation. Thankfully, [xxx] and I survived, but this incident caused severe mental trauma for my family. We have not reported the incident to Tesla. The dashcam footage appears deleted during the crash and the car seemed to have only recorded footage before the crash and after. This issue has not been reproduced or confirmed by any dealer or service center, but further investigation needs to be done. The vehicle has not been inspected by Tesla or any service center. However, the police and insurance representatives have been involved. We are coordinating further inspections to find the cause of the acceleration and brake failure. We aim to invoke the Tesla event data recorder (edr) tool to investigate what exactly went wrong with the car. There were no warning lamps, messages, or symptoms before the incident. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2021 Tesla Model Y 🔎.

Emergency braking and alerting engaged. There were no vehicles or objects in front of my vehicle at the time. The braking was hard enough to engage the abs and bring the car from 40mph to 5-10 mph, risking a rear end collision if someone was behind me. I have owned the car just over 1 year, this is the first time this has happened. No warnings or other errors appeared before the incident and no errors are present after the incident. Neither the dealer or anyone else has inspected the vehicle. Conditions: dry, night (9:50pm) no cruise control or lane keeping functions enabled, no cars or objects were seen in front of the vehicle.

While in an automatic car wash with the vehicle in "car wash mode" the vehicle suddenly stopped free rolling and the vehicle behind the Tesla Model Y crashed into the Tesla. The brown bear car wash reported that these types of incidents are common at brown bear car washes and that they ocurr when the drivers of Tesla cars remove their seat belts while the car is in the car wash.

I was driving on a street at the speed limit there were no cars in front of me and behind me thankfully the car just braked very hard suddenly for no reason and I lost complete control over the vehicle after the car came to a complete stop I was able to continue driving. Thankfully there were no cars behind me because if there were I don’t even want to imagine the accident I could’ve caused aside from this the breaking was so hard that my whole body hurts and I am afraid to drive the vehicle as I do not know when to expect this breaking since it can happen so suddenly at any time.

2023 Tesla Model Y has frequent phantom braking issues when using cruise control. Let me clarify I am not using any sort of auto-pilot or self driving options. I am simply using cruise control. The incidents that cause many braking issues are unjustified to the point I have no idea what the Tesla may have recognized to make it slam on brakes. Very dangerous.

Summoned my car in parking lot. Vehicle showed on app that it planned to go straight then turn left but instead cut to a left and thus colliding with the car that was parked next to me. I have the footage if needed. Car should have stopped instead, or followed planned route. I was staring at the car the whole time and it looked that it was going straight, even after colliding, it looked like it was aimed to go forward. The car created a log of what happened if needed.

I was driving and going about 50mph and there was no other car near me. Suddenly the car slammed on its brakes. Dropped to probably 10mph. My mom and I were both wearing seatbelts but our heads were thrown forward. My neck and shoulder are sore and stiff today now. There were dark skid marks in the road ahead of us and I believe the car saw those and broke because of them. If there had been a car behind us, we would have be rear ended. There were no warnings beforehand. When the car broke, lights flashed and there was also an alarm. The vehicle has not been inspected by police or manufacturer.

I was parking the Tesla Model Y at very low speed, when there was a sudden unintended acceleration. The car banged against the wall of a building and was severely damaged. My family - wife and two children were in the car.

I have reported this same issue twice before. When on cruise control, the car brakes unexpectedly. My 2nd and most recent report was on June 2, 2024: ". . . I had already disabled "apply brakes when regenerative braking is limited" under dynamics on the screen. (see photo) he showed on the screen, under autopilot, that I could disable automatic emergency braking, which I did. I was concerned that this warning pops "the vehicle will not automatically apply the brakes even when a collision is detected" (see photo) but he suggested I try it to see if it would solve the cruise-control braking. I was hopeful, and disabled it, knowing that it might take a while to know if that solved the problem. I drove the 30 miles home on the frontage road instead of the interstate, and when there were no other cars around, I set cruise control at 50 mph, the speed limit. I came to a series of small hills in the road, and was reminded of the first time the automatic braking happened, on a 60 mph road with longer amplitude hills of greater height. Amazingly, it happened again! pretty significant braking and slowed me to 25. This time I waited it out to see if it would resume the cruise control at 50. It did not. I have since restored the automatic emergency braking as that seems important for a crash situation. I have restored the "apply brakes when regenerative braking is limited" since that obviously was not the problem either. " I did not use cruise control again until August 23, when I happened to be returning home from silver city to las cruces and was on the same highway, 180, where the problem first occurred. It is a 2-lane road and often there is no traffic, so I felt safe trying cruise control again. I set it at 55, the speed limit, and after only a few miles the car braked again. I do not use cruise control anymore, and was dismayed to find that Tesla is again offering a free trial of autodrive! this is a huge safety issue!.

The car suddenly slam on the breaks for no reason especially during night time. Happens every day on certain roads.

The incident occurred on July 14th, 2024 at 9:49 p. M pst in sammamish wa, where my car (2024 Tesla Model Y) incorrectly enabled automatic emergency braking , and unexpectedly applied brakes when I was traveling at 45 mph on an empty road. The sudden braking reduced the speed of my car to less than 15 mph in a span of 2 seconds and eventually brought the car to a halt . I strongly believe this was done in error due to a system malfunction, as there was no potential cause of a collision given there were no incoming vehicles or any vehicles ahead. There were also no pedestrians or any objects such as animals or wildlife on the road. One this incident occurred, an alert with code “app_w050” appeared on the car screen. (photo attached). Due to this abrupt unexpected braking, it caused a significant treat to my safety, as I could have potentially lost control of the car and slid off the road into a ditch or another vehicle traveling behind me could have potentially collided with me in the rear end.

The automatic windshield wipers will not turn on during rain and mist. Also the wipers will not turn on when there is water and visibility is very poor. For unknow reason the car jammed the brake almost bringing the car to a stop on the freeway on cruise control and nearly caused a pile up.

The fsd is not fully matured and I have tried multiple times and all times and the experience is weird and very hard braking and no control on parking lots. So not sure why this is called fully self driving capability by Tesla? I have paid 12k for this capability in my car and unfortunately it's not fully functional. Hope some safety precautions will be taken for the safety of the drivers and passengers. Happy to provide more details if needed. Thank you.

On June 13 around 9:20 pm we were driving south on I-5 in vancouver, wa. The car was on cruise control (not autopilot or autosteer) at 65 mph. The car braked really hard and dropped the speed to nearly 20 mph. We do not know why the car braked, there was no one in front of us. Fortunately there was no one behind us other us we could have been rear-ended. I quickly took control of the car and increased the speed. We have not driven the car on highway since then or taken the car to the dealership yet. There was a message on the screen after the incidence but it disappeared before we could read it.

During my trip, traveling at speeds ranging from ~30 to ~75mph my car suddenly and with no advance warning braked to a full stop, four separate times. I was not using cruise control or any driver assisted features. There were no obstacles in the road. I did not get in an accident because there were no other cars near me on the two different roads I traveled on.

Two incidents: 1) non-accident: my wife was slowing to make a right turn at a stop light and the steering locked up for about 3 seconds, where she wasn't able to regain manual steering control. We did not have full self-driving mode at the time. Luckily, she was only going about 10 mph, and was able to brake before running into oncoming traffic. 2) accident: our son was driving on a country road, along a section with a slight curve. We had a free trial for full self-driving mode during the previous month, but it ended two weeks before the accident, so he could not have had it in self-driving mode. It appears that he didn't make the curve, but as evidenced by a single long tire skid mark, continued almost perfectly straight, across the oncoming lane, and ran into a redwood tree. The car rolled and ended up upside down, against the bank back on the right side of the road, with the lithium batteries on fire. Our son and his passenger sustained severe injuries and neither has a memory of what caused the accident. Naturally we suspect the possibility that the steering locked up again. But it also seems likely that the aeb and abs were not functioning correctly, as if they were, there should have been several short skid marks for the tires on both sides of the car, rather than only a single long skid mark. Additionally, there's no shoulder on that road, and there is a clump of bushes that come very close to the white line, so it's possible that a steering auto-correct initiated the incident. We have not yet been able to recover edr or log data from the vehicle.

This is my fifth Tesla, so I. Am very familiar with the self driving feature which is mostly good. However, recently I got a Model Y and with in 24 hours I was rear-ended on the freeway! I had the car in full self driving mode (fsd)! for some reason it just braked hard in the middle of my driving however, traffic was backing up. I injured my lower back and neck and I'm now having to go in for therapy and schedule a cat scan. Luckily the person behind me was fine. After the incident I downloaded the zip disk which records incidences. The car had documented pre and post accident! but the actual incident there is no record. . . Almost like it got wiped out!?!.

The vehicle would not stop and ran into the back of a friend. I am not safe in the vehicle as we were in a parking lot no way I could’ve reached top speed.

The contact owns a 2023 Tesla Model Y. The contact stated that while driving the vehicle at approximately 55 mph on autopilot, the brakes independently engaged and the vehicle decelerated abruptly to approximately 12 mph. The contact stated that there were no obstructions, or incoming vehicles on the road. The dealer was not contacted. The manufacturer was not made aware of the failure. The failure mileage was approximately 18,000.

I bought a 2023 Tesla long-range y in June 2023 at Tesla santa fe, new mexico. I have had trouble with the brakes applying on their own during cruise control. It was very scary the first time it happened, but luckily there was very little traffic on the 2-lane highway I was traveling on. The Tesla dealer in santa fe told me they don't have a software fix yet and he simply avoids cruise control. After a few months I cautiously tried cruise control again and got away with it. . . But the third time, months later, it happened again. When the free month trial of auto pilot was installed, I did not intend to use it. Toward the end of the trial, I used it on I-25 coming home to las cruces and realized it might actually auto-brake on the freeway, which could be a disaster. After that trip a Tesla friend shared his near-accident-causing experience with the cruise control braking. Another issue is that the key card didn't unlock the car, then wouldn't start the car. I called Tesla and was told I could reset the key card using the Tesla app, but it did not work. The next day I called Tesla support; he ran the diagnostics and said "OH yes, your car needs to be re-booted". He did so, and the key card worked to lock the car, but not to unlock or start it. I asked him to send me a new key card. "we sell a set of 2 for $45" (this is what came with the car). I told him I paid $53,000 for the car less than a year ago, it did not come with a charge cable, and now the key card didn't work? he looked to see if the key card was covered under warranty and found it was not. I have been unable to reach a person to speak with at either the nm dealer where I bought it or the el paso dealer where I test-drove and attended the seminar, and have waited on the phone for exorbitant amounts of time while the bot tells me I can manage most problems on the Tesla app.

I was performing a 3-point turn on a residential street. While reversing during the turn the automatic emergency braking enabled and slammed on the brakes, bringing the car to a complete halt instantly. This caused my head to hit the headrest with enough force that I have headaches and brain fog the next day, indicating a concussion. I was 10 feet from the nearest parked vehicle when reversing; the aeb kicked in erroneously. This is not the first time that Tesla's aeb has erroneously and dangerously engaged while I was driving.