Adaptive Cruise Control problems of the 2024 Tesla Model Y - part 1

Traveling today using the cruise control function in Tesla Model Y, the car took over the control of the car and applied braking for no clear reason. Was going 70 miles an hour, had been using the cruise control for about 30 minutes when incident occurred. There were semi trucks in the slow lane, I was in the fast lane. There were no vehicles in front of my car. The car suddenly lunged forward as the brakes were automatically applied. Simultaneously, the steering wheel began to jerk back and forth causing the car to veer back and forth. Vehicles around me began braking as well to avoid rear ending my car and to avert hitting my car as it veered back and forth. I had to fight the steering wheel in an attempt to pull it off the active roadway and then the car suddenly gave all control back to me at which time I was able to disable the cruise control and take full control.

Three different occasions, while utilizing adaptive cruise the car applied all breaks, causing me to lunge forward with the car coming to a complete stop. I did not see anything that would had caused the car to apply the breaks and the camera's did not record any obstacle. This was brought to the Tesla dealerships attention and I was told there is nothing that can be done about it. If I had not been wearing my seat belt, the potential emergency braking could had resulted in me sustaining a blunt force impact to my chest with the steering wheel, not to mention a possible motor vehicle accident with the vehicle behind me. I did look through the manual and there is no way of me turning feature off or lowering to a warning versus a suddent stop.

I was driving on a three-lane highway (I-495) using the adaptive cruise control (autosteer) when I suddenly noticed the car to my right dangerously veering toward my vehicle. In an attempt to change lanes to the left, my car wildly overcorrected to the left, nearly sending me into the highway median, followed by another overcorrection to the right. The steering wheel felt almost uncontrollable. Luckily no collision.

After update 2024. 38. 2 they introduced a "active curve assist" which can't be disabled while using the cruise control. This has caused the car to excessively brake (70mph to 45mph), a couple times while a vehicle is following resulting in a near rear end collision and has created dangerous situations.

When using fsd, I've noticed that on occasion at a red light, the car will start moving, albeit very slowly, a fraction of a second before the light turns green. I've assumed the car was watching the traffic lights from the other direction using its cameras. So on the [xxx] when this happened, and the car started moving I let it go thinking the light was about to turn green. But I was shocked that the car drove through the red light. Admittedly there were red lights in all directions. I know I'm supposed to be keeping control but it was so shocking that by the time I reacted the car was already in the intersection so I let it go. I downloaded a recording of it. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Tesla full self driving v13. 2. 2 attempted to make a left turn while having a red light. The vehicle successfully came to a complete stop due the red light but once traffic cleared the intersection it attempted to proceed with the left turn while still having a red light. I immediately took over preventing the car from entering further into the intersection.

The fsd feature for which we have paid in full to Tesla does not work. No cruise control and no assisted steering control or cruise control works. As per their service department, ap4 car computer has internal short and camera can not communicate for above mentioned features.

Cameras stopped working which made all of the safety functions and gps stop working as well.

The car lost all adas functions, and gps on the onboard navigation system. In addition. It can't use regular cruise control and it does not have rear view mirror blind spot warning capability any more. This all happened when the car attempted to install the "holiday" updated from Tesla automatically around 11/29/24 .

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.

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: cruise control (adaptive or otherwise) back up camera 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.

Navigation is frozen. No cameras work. No full self driving features work. No cruise control.

After a recent software update - all cameras/sensors/cruise control/adas systems are no longer functioning.

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.

All the cameras on the vehicle were unavailable starting today (12/08), including the rear view camera. The vehicle was not drivable and no cruise control was working.

All of the cameras on the vehicle are no longer working after the latest update. This means all sensors (even as simple as windshield wipers) do not work. All driver safety assistance does not work.

According to Tesla the ai4 computer experienced an internal short circuit. This has rendered all cameras including backup camera, gps, parking sensors, and automatic wipers inoperable. The visibility out of the vehicle is very poor to the rear without the backup camera. Parking without the rear camera and parking sensors is difficult. Not having physical controls for the wipers makes turning them on/off and changing speeds difficult, causing a lot of drivers distraction.

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. None of cameras on my vehicle are now viewable. Due to the design of the vehicle, reversing without having a backup camera functional is a hazardous event. Also, 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 -gps system has failed, the vehicle’s navigation system is inoperable. 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. Without a backup camera, the risk of causing injury to people or property is greatly increased. 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.

They advertise it as a computer failure. The cruise control doesn't work, none of the cameras displays, causing me to hit the lawnmower in my garage. Other functions as navigation, range prediction, and automatic light/dark display switching don't work either.

After latest Tesla software upgrade, all cameras and gps stops working. All automatic functionalities of the car stops working without cameras, and it is really unsafe to drive, for example back up the car since the physical rear view mirror is very small, and car is naturally designed with those cameras to function properly.

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.

2024 Tesla Model Y. All cameras and gps used for safety and convenience features suddenly stopped working. Everything was working when vehicle parked for the evening, next morning cameras and gps stopped working. No accident or other incident associated with it. No longer able to use: backup camera automatic cruise control (including full self drive (supervised)) blind spot warning when changing lanes. Navigation parking collision warning automatic braking there is concern with safety of vehicle overall since many of the safety features rely on Tesla cameras.

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.

Tesla shared I have an ap-4 computer short that disables all cameras (rear back up camera, blind spot camera, lane deviation detection, emergency assisted forward braking), navigation, and auto lighting features are disabled. Other non-essential features do not work as well.

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 01/03. Not offering me a rental or anything on my brand new '24 Tesla. It has just over 1,000 miles on it and is ~1 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, back camera, 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. This has increased the safety risk of my vehicle tremendously. . . Tesla has not seemed to publicly acknowledge the issue yet either.

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.

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).

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

All safety features and cameras on this vehicle are currently disabled. Specifically, the following functions are not operational: forward and parking collision warnings, blind spot warning, lane departure and lane-keeping warnings, rear cross-traffic warning, self-driving capability, adaptive cruise control, navigation system, location tracking, sentry mode, premium connectivity features, reverse camera, front and side cameras. Additionally: the headlights remain on continuously during daylight hours. The interior control panel screen and the side and rear mirror displays are stuck in night mode.

#issue description I experienced an issue with Tesla’s full self-driving (fsd) system when a trailer hitch was attached to my vehicle. From what I observed, the fsd system appeared to detect the trailer hitch as an object in close proximity to the vehicle. This caused the vehicle to accelerate rapidly to the fsd maximum speed of 85 mph, regardless of the road conditions or posted speed limits. This issue occurred when the lane markings were visible, but the hitch obstructed the rear camera’s view. On the fsd display, this obstruction was represented as a persistent “cloud” following the vehicle. I attempted to adjust the maximum speed limit manually to mitigate the acceleration, but this did not prevent the behavior. Each time I engaged fsd, the car would accelerate rapidly, even in situations where such high speeds were not appropriate for the road conditions. # steps taken to resolve the issue I covered the rear camera, which allowed fsd to function normally and prevented the rapid acceleration. The “cloud” visualization on the fsd display also disappeared once the camera was covered. # trailer mode Tesla offers a “trailer mode,” but I did not enable it since I was only using a hitch without towing a trailer. My understanding is that fsd does not operate in trailer mode. # reference: this issue has been reported by other Tesla owners, as discussed here: [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I have had multiple incidents of “phantom braking” when using traffic aware cruise control and auto steer. It usually happens on one lane state highways with opposite direction traffic, sometimes with turns or hills. The vehicle has slammed on the brakes without warning, sometimes the warning tone also sounds. Each time there was absolutely no danger, nothing abnormal. On a couple occasions there was traffic behind me, and it must have scared them. They probably thought it was a hard brake check. If I wasn’t able to quickly over ride the braking with the accelerator it very easily could have caused an accident. On two occasions my pregnant wife was in the car and it scared her very much. I am personally afraid to use it now, knowing it’s going to slam on the brakes is nerve wracking and unsafe. Tesla does not seem to care about addressing the issue, rather putting all eggs in the “full self driving” basket instead of improving this very obvious safety defect. From reading online forums it seems to affect just about everyone. I’m hoping their engineers address it and they release a software update correcting it, but as mentioned above it doesn’t seem to be on their list of priorities; the problem has been happening for several years now and has resulted in at least one known fatality. Hopefully the NHTSA can light a fire under them and have this scary safety defect addressed.

While using adaptive cruise control the vehicle regularly decelerates for no reason and without warning "phantom braking". I experience this about once a week, but experienced it multiple times on a longer drive this weekend. The unexplained abrupt braking could result in being rear-ended by another vehicle.

On multiple ocassions when using adaptive cruise control the vehicles slams on the brakes without warning and for no reason and brings car to a near standstill in the middle of traffic unless I slam the accelerator down and fight the car. Engineers from Tesla inspected the vehicle and said everything was working normally, but it continues to malfunction and almost causes accidents with cars behind in traffic having to slam on their brakes as well.