2023 TESLA MODEL Y Forward Collision Avoidance Adaptive Cruise Control Problems

I was driving with the car in Autopilot in the center lane of the highway. I could see a white vehicle move close on my right, and I confirmed that it had crossed over into my lane with both its front and back left wheels on my Tesla screen with a quick glance. I then tried to maneuver to the left lane (which my screen showed was clear) but the steering wheel had significant tension. All of a sudden, I heard the chime signaling that Autopilot disengaged, the car jerked hard, and my car was headed toward the median. I swerved quickly to the right and hydroplaned. As I straightened out, my vehicle hit a vehicle in the right hand lane. The strong tension followed by jerk and quick release of tension prevented me from having full control of my vehicle. I believe that if Autopilot had not been engaged,...

The vehicle has a phantom breaking problem. It does that 3 times daily on the same route in the same place. This is a big safety flag. It has the same problem on the Autopilot & normal cruise control.

The incident occurred while the vehicle was being operated with Tesla driver-assistance features enabled, including lane assist and cruise control. The driver experienced unexpected vehicle behavior that felt inconsistent with normal steering response. Although the driver maintained hands on the steering wheel, the vehicle appeared to react in a manner that was not anticipated, contributing to loss of control and a collision resulting in total vehicle loss. No bodily injury occurred. After the incident, the insurer assigned fault to the driver but declined to investigate any potential vehicle system or software-related issues, directing us to the manufacturer. When attempting to report a potential malfunction to Tesla, the manufacturer declined to open a report because the totaled vehicle had been removed from the Tesla App, preventing further system or telemetry review. This report is submitted to document the incident and the lack of access to any system-level review following the loss.

While operating my Tesla Model Y in a commercial parking lot at a T-intersection controlled by a stop sign, the vehicle unexpectedly and automatically accelerated without driver intent. The incident occurred during a low-speed maneuver. Upon the unexpected acceleration, I immediately attempted to regain control by applying the brake pedal repeatedly and firmly. Despite clear manual brake application, the vehicle did not decelerate as expected and continued to move forward. I also attempted to stop the vehicle by pressing the Park button, but this action did not stop the vehicle. The vehicle continued uncontrollably for approximately 150+ yards, traveling over curbs, striking a fence, and ultimately colliding with the garage structure of a residential home. Throughout this sequence, the vehicle remained unresponsive to braking and stop inputs. Vehicle data later confirmed that brake pedal application was detected prior to impact, yet braking response was insufficient to prevent continued motion. At...

Currently on the newest Tesla Full Self Driving software v14.1.4, it is phantom breaking as well as phantom swearing out of nowhere. It is swerving and using the breaks so hard it actually affects the steering wheel and self disengages it's self (without the big-loud safety alert to immediately take over control), it just does the soft disengage audio notification, like if you wanted to cancel FSD yourself. The serious problem is that the car does not stop like it should, instead it just continues it seems like it just neutrally rolls on its own drive and twice in the last week it would swerve directly into oncoming traffic. It is not supposed to be doing this at all, especially now that the "hands off" approval is enacted. I drive about 450 miles a week and this has happened about twice a week for the last two weeks. Thank god...

The Full Self Driving (Supervised) ADAS in this vehicle will react to shadows on the road and can put the car or other cars at risk. We have had multiple instances where, on a sunny day, the car will react to shadows cast on the road and take evasive action like braking or switching lanes abruptly. This can be hazardous due to the random nature of the of the occurrences and them happening at times when a driver may be lulled into a false sense that the car seems to be driving itself well. So far we have been lucky that no other vehicles were traveling too close behind or to the side of us. We have experienced this behavior multiple times and there are other people online who have reported this. The car gave no warning indicators either before, during, or after the occurrence. Note that our car uses...

This started at about 65000 miles in my 2023 Model Y. The rear camera first lost picture and I received a warning that it may be intermittent. It has progressed now to the point that autopilot, navigation, all cameras, cruise control, auto headlight, and auto wipers are all nonfunctional. The car does not know its location. All safety features such as lanekeeping, cross traffic alert, auto braking are disabled. The rearview camera no longer functions. Software updates no longer complete downloading. While there are numerous reports of computer short circuits in hardware 4 cars, the only solution I am offered is to have the computer replaced at my own cost of just under 3000 dollars. And that would be warranted only for one year or 12500 miles. Reviewing the submissions on the NHTSA website as well as searching online, this problem is not infrequent. I do not feel safe letting...

This is a complaint regarding intermittent camera blindness, driver assistance failure, and dismissed diagnostics on a 2023 Tesla Model Y. These issues have impacted critical safety systems including: •Pillar and rear-view cameras •Autopilot and Traffic-Aware Cruise Control (TACC) •Park assist and visualization systems Despite multiple service visits and clear documentation, Tesla has failed to diagnose or remedy the malfunction, attributing the issues to external weather factors despite my repeated statements that the problems occurred in clear conditions. The vehicle has also generated camera blocked/blinded alerts, even when the lenses were clean, and service technicians confirmed the B-pillar camera was blocked during 8.7% of the drive cycle — a serious figure given that Tesla’s driver-assist systems depend entirely on vision-based processing. The vehicle has shown alerts related to Automatic Emergency Braking being disabled, which Tesla attributed to a “false trigger.” Regardless, the vehicle may have operated without key crash-avoidance systems enabled...

When using the adaptive cruise control or “autopilot” feature on my Model Y, the vehicle will brake extremely hard without warning. This sudden, unnecessary braking is commonly referred to as phantom braking. The failure is available for inspection upon request. This malfunction poses a significant safety risk to myself and others, especially vehicles following behind, as it could lead to rear-end collisions. The issue is widespread, with many other drivers experiencing the same problem. The problem is easily reproducible on highways, particularly at certain intersections where no obstacle is present. The system will sometimes display a “curvature assist” prompt despite the road being straight, causing the vehicle to brake abruptly. I have not taken the vehicle to a dealer because the warranty has expired. The issue has not been confirmed by a dealer or independent service center, nor has it been inspected by the manufacturer, police, or insurance representatives. However,...

Tesla has a bug with their basic Autopilot software that they refuse to fix and that I believe is causing a safety issue. They advertise Autopilot as standard on all Tesla's as an active safety feature that helps reduce driver stress and improve safety on the road. Here is the issue. Basic Autopilot has a feature built into it that limits the speed to 5 mph over the speed limit. This is a great idea! However, since a software update that was released early last summer, the car struggles to read the proper speed limit. For instance, many roads in my area are posted at 65 mph. The car doesn't read these and defaults the speed limit to 50 mph, meaning I can only use Autopilot at 55 mph max. When most people are driving 70 mph, this causes a safety issue. Tesla is aware of the problem. I have...

While driving a Tesla Model Y on a freeway in Arkansas, the vehicle was operating in Autopilot mode (Tesla's driver-assistance system). During a highway merge, the vehicle followed a state trooper's car too closely and failed to slow down appropriately. The trooper had to apply his brakes to avoid a collision. After stopping the vehicle, the trooper issued a written warning, explicitly attributing the issue to equipment failure and advising immediate correction. This issue appears to involve a failure of the adaptive cruise control and forward collision detection system while Autopilot was engaged. No collision occurred, but the situation posed a clear safety risk to both the trooper and my vehicle. This was not the first issue with the vehicle's automation. In a previous incident (November 2024), the vehicle exceeded the posted speed limit while on Autopilot, resulting in a traffic citation. Tesla has been notified, and a service request...

I am writing to raise a safety concern regarding the use of Tesla’s Full Self-Driving (FSD) system on my 2023 Tesla Model Y when a rear hitch-mounted bike rack is installed. Numerous users, including myself, have experienced dangerous or erratic behavior from FSD when carrying bicycles on a rear-mounted rack. Specific issues include: False detection of a trailing vehicle directly behind the car. Phantom braking or swerving, including abrupt lane changes or acceleration. Unreliable navigation at intersections (e.g., nearly running stop signs) due to apparent misinterpretation of sensor data. In some cases, tailgating or aggressive following behavior by the vehicle. These behaviors appear to stem from the FSD system misinterpreting the presence or visual signature of the rack and bikes as another vehicle. In several online reports, this has led to unsafe maneuvers. To temporarily mitigate the issue, some drivers have resorted to taping over the rear camera, which is...

This is my 7th report. On [XXX] [XXX] pm I was traveling home from Alburquerque and was just past Isleta Resort and Casino heading south on [XXX]. I don't use cruise control very often because of the emergency braking that occurs (and that I have reported several times before). I was on a long drive and decided to try it on a short section of [XXX] on my first day, and found that it was slowing on it's own when I approached a car from behind. Two days later on the way home, when there was no one in front of me, it slowed significantly without needing to and I thought it was better than the past rapid braking...as I was thinking about this, the car abruptly "slammed on the brakes". I was forced forward but had my seat belt on. Stuff fell off back seat onto the floor. The...

The issue lies with Tesla’s Full Self-Driving (Supervised) system 12.6.4 on HW3. While driving on roads with lower speed limits (such as 35 or 45 MPH), the vehicle occasionally brakes abruptly for no apparent reason, even when there are no vehicles or obstacles ahead. This unexpected braking behavior can be dangerous, as it may lead to rear-end collisions if the driver behind is not attentive or prepared to stop suddenly.

This incident happened on [XXX], I just got the Tesla data and police report. Here are the events as I remembered: - I was driving my 2023 Tesla Y with FSD supervised (v13.2.8) along [XXX] entered from [XXX] and driving close to north of [XXX] without any issue - Noticed a car in front of me braking hard (about 6secs from the recording dashcam footage) - Realized FSD was not braking hard enough (or at least it did not feel like it) - Slammed on the brake for what felt like an eternity (about 2 secs from the dashcam footage) - Rear end collision on the front car at ~25 mph, airbag deployed. I remembered feeling the brake pedal vibrating but did not stop the car at all. By analyzing the raw data provided by Tesla, it is found brake, accelerator, AEB, ABS and TSC were completely messed up after...

Adaptive cruise control changes speed without warning, often when passing a truck clearly in another lane, but also for no apparent reason. This occurs an average of approximately once every 5 miles, but at irregular intervals. It slows quickly enough to be a hazard. This occurs in all modes (set by speed limit or manual).

This is my 6th complaint about Tesla. I wrote recently when my remote drivers could not unlock my car. I solved it myself and when I got home, I called Roadside service for help re-programing the key card that failed. The person told me to call Tesla on Monday about the inability of my other drivers to unlock my car. I did that yesterday, and I told him I thought it was something wrong with my car, and suspected I needed to take it in for service. He said no, it wasn't the car but that I needed Premium Connectivity ($10/mo) in order for my drivers to be able to unlock my car. He put me on hold and came back to tell me that "it's a safety thing" so that no one can remotely unlock my car. The reason I put 2 friends in other states on my profile...

This is my 5th complaint and involves, again, the key card. This is the used key card the El Paso Tesla Dealer was kind enough to give me, and help me program, when one of the original key cards, less than a year old, stopped working. (Tesla wanted me to pay $45 for 2 new key cards) The used key card stopped functioning so I planned to call Tesla and have them "reprogram it"...something that must be done while I am in the car. I went on a last-minute trip and took my spare, barely-used key card. I also had my phone but didn't realize I'd not re-downloaded the Tesla app when I recently troubleshot my phone. Later in the day I parked at CIty of Rocks State Park in NM, still without connectivity, and locked the car with the "good" key card. Then I misplaced the key card! I...

While using cruise control (TACC) or FSD, the vehicle inadvertently brakes until vehicle stops, due to detecting light glare or other things as a collision threat. This happened many times. Reported to Tesla service, they said it is a bug and I should file a bug report. I have previously filed many bug reports about this but no software update fixed the problem. Incident happened many times, Tesla should have records of all, because when there is a disengagement, driver is asked to tell what happened by voice.

This is my 4th safety report about the same issue: unexpected braking while on cruise control. Since my last report, Tesla offered another free month of auto pilot but I did not take it for fear of this braking issue. On Tuesday [XXX] I was returning to my home in Las Cruces NM from Colorado. I was on [XXX] toward Albuquerque, and there was very little traffic. I decided to see if I could get away with the cruise control. As I was pulling into Bernalillo, there were some oncoming cars in a left-turn lane at a signal, and my car braked automatically...enough to lurch me forward. I decided to stop at the "new" Tesla dealer in Bernalillo (I got my car in Santa Fe) and ask about the automatic breaking and whether they'd fixed it. The 2 service employees looked at each other and one said "No". I then...

My car is equipped with autopilot feature which I am unable to use due to safety score system designed by Tesla which is used for calculating insurance premiums. This safety score system doesn’t count the miles driven on autopilot and only counts the miles driven without autopilot to decide safety score which impacts insurance premium. This policy forces consumers to drive car without autopilot to increase number of miles driven to compensate for any mistakes made during driving without autopilot. This not only compromises safety of the vehicle and passengers but also deprives me to use features of my car that I paid for. Since autopilot is a supervised driving and requires driver active engagement the miles driven using autopilot should also be counted to decide safety score. Dealership are unable to help with any issues related to safety score system and there is no customer support available to address...

As I entered the parking lot I disengaged FSD by taking over the steering wheel. When it can to navigating into the parking spot I gently push the accelerator and the pedal disappeared from under neath my foot as the car accelerated forward hitting the car to my right. My calls to Tesla went unanswered so I could not report the incident. The incident happened May 2nd 2024.

Accident report [XXX] I was driving on [XXX] fort smith ar to Bentonville Car was on autopilot, it was raining on and off and with all other cars we were driving around 70-80 mph All the sudden it started a short slip on the right then second after that it started spinning and took us out of the road car totaled car. I believe problem is autopilot did not disengage when car started to slip but instead it was still on until the car got out of the road and hit a large tree. This is 3rd time for me to have this type of accident with same situation slip then spin then out of the road. I believe autopilot is the problem here 100%. This autopilot system is very dangerous. I had enough of this and im hoping national highway traffic system will step in. INFORMATION REDACTED PURSUANT TO...

Harsh braking while using cruise control. Known as "PHANTOM BRAKING". This is causing extremely dangerous situations. The vehicle slams on the brakes while at high speeds for no apparent reason. Perfect weather and road identification markers. Happens with oncoming vehicles in normal path of travel as well as when there is a break in painted lines on the roadway. This creates a serious potential for an accident injury or death. Happens consistently.

Tesla Model Y 2023 running on Enhanced AutoPilot (software up to date as of Nov. 19, 2024) on a highway in the rush hour when traffic is moving at the speed of 5 - 30 mph, failed to identify the trailer in the front and sped up. I had to take over control, apply brakes to avoid the rear-ending the trailer in front of me. Tesla was speeding up as if the road was open. In the computer display it does not show any traffic in front of the car. The trailer did not have any reflectors in the backside, but had working tail lights that would light up only when the trailer applied brakes. In the attached picture, blue Tesla is my car. There were no warnings of any kind of malfunctioning in my car. Highway safety can probably improve regulations on making the trailers more visible. Tesla should...

Tesla FSD v12.5.4.1 tried to run a red light without stopping. Although FSD has a multitude of other issues when it comes to breaking traffic laws running Red lights shouldn't be one of them. Luckily I was able to override the system and no one was in the area to get hurt and no property damage.

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.

New version of Autopilot software install is very unsafe. It aborts multiple times. It also accelerates when it should be stopping or slowing to make a turn.

We have had numerous incidents of sudden and unexpected braking. Earlier this month while rounding a curve with adaptive cruise control enabled, the car aggressively braked when it saw an oncoming semi safely in the other lane. It was good there were no cars behind us or no doubt they would’ve rear-ended us. Last night - like so many other times the past year or so - I was pulling into a parking spot with a bush in front and, only a few feet in, the car slammed the brakes on even engaging ABS. Usually the warning system just makes a sound or gently applies this brakes but this was jarring. Everyone in the car lurched forward. The date below is from the incident related to the semi. That could have been very bad. My Subaru Outback uses sonar and I’ve never had these sorts of problems.

I was fully stopped at red light of intersection of [XXX] . Suddenly my vehicle accelerate it self and start auto drive at high speed and malfunction, hitting multiple parked vehicles. My vehicle was on auto holding brake feature. I was not able to control my vehicle, even when I tried pressing the brake. No warnings or alarms from my vehicle when crashes into multiple parked cars. On [XXX] incident happened. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Several times in the last few months I have had extremely hard braking on the highway when using adaptive cruise control (called Autopilot by Tesla). It has happened on a few different highways ([XXX] in Arizona, [XXX] in New Mexico, [XXX] in Colorado) all when going between 65-75 miles per hour. Thankfully, in most cases, there was no one directly behind me or there almost certainly would have been an accident. In one case a colleague of mine was following me and had to slam on the brakes, too, but she avoided an accident by reacting quickly. In all cases the road in front of me was empty of traffic and there was no warning that the brakes were about to be strongly applied. In some cases the car seemed to react to a turn in the highway, or maybe an uphill or downhill section, but it is unclear to...

Date of incident 9/9/24 11:15 AM 2023 Tesla Model Y traveling north bound I-15 using Tesla Autopilot intending soon to exit Pioneer Crossing / American Fork UT in the far right lane — vehicle made sudden move to right glancing off wall causing scraping damage to right front quarter panel, and hub cap. Although I stepped on the brake in attempt to take control of the vehicle I immediately experienced uncontrolled acceleration and difficulting in steering. I chose not to exit and fought to keep the vehicle in varying freeway lanes attempting to brake to which the vehicle continued to attempt to accelerate against the braking, I also simultaneously and frantically continued to push the right stalk upwards in attempt to disengage Autopilot assuming that was causing the unintended acceleration. I was fighting to keep the car in a lane with faulty steering at time awakwardly steering to avoid slower...

Driving using adaptive cruise control on [XXX] in Nebraska. Sunny, dry day, no cars or trucks around us. Speed approx 80. Vehicle unexpectedly brakes very hard. Was able to recover by accelerating but very dangerous if there had been a vehicle following behind us. Car has done this many times since purchased. Will avoid using cruise control. It is not safe! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Full self driving version 12.5.1.3 has run through red lights on two occasions in past three weeks. This is completely unacceptable and software must be recalled. Suggest that Tesla should be reimbursing customers subscription fees paid.

Driving north on [XXX] just north of Red ond Oregon on a 2 lane section at sunrise with traffic aware cruise control set the Tesla braked aggressively when a semi approached in the oncoming lane. Neither vehicle crossed the center line but the crash alarm blared and the car braked almost causing a rear ending accident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Adaptive cruise control frequently rapidly decelerates (phantom braking). This can occur on empty roads in excellent weather conditions, but happens every time I have used the cruise control. The rapidity of the deceleration creates a significant risk of being rear ended. I have stopped using cruise control as it is too dangerous. This has been a noted problem on multiple Tesla models for multiple years. So far Tesla or NHTSA has not addressed the problem.

While driving straight on a 2 lane divided highway, the Traffic Assisted Cruise Control decided it needed to slow itself down significantly to 15 MPH under the speed limit (posted speed limit was 65 MPH). There were no vehicles in front, behind, or beside my vehicle. The breaking occurred when it came across a line break where cars from the opposite side of track could turn left onto a service highway but no one was in that divide nor in the turn lane. There was no warning or any obvious indication that the vehicle should harshly slow down for any safety reason, where in fact is there was a vehicle behind me, it could cause a crash. I made a request for Tesla to repair the vehicle, but in my attached photos, you can see that they admit to the issue being software related and insisting that it is an...

We were on the freeway with cruise control on and the car slammed on the brakes. It automatically slowed 15mph while in front of another vehicle. The cause was that it hallucinated a person in the lane of the road, I could see the "person" on the screen of my car. However there was no person or hazard in the way.

We were driving on a 2 lane highway, when we came to an intersection with a center turn lane the car panicked and swerved left and then braked and disengaged the autosteer/cruise control. This was not with autopilot, just autosteer.

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.

I used the Full Self Driving software Tesla provided us in April. On [XXX], the car did not detect a curb therefore the car went right over the curb which popped both right side tires and the front rim. Damage was $1,800. I brought this up to Tesla and they informed me that it was my fault for not taking over and refused to help with the repairs. I understand taking over if there was a 3-foot shoulder, but on roads with no shoulder such as this one I found it impossible to correct in time. Also, at the very last split second, the torque on the wheel was too tight too correct (not enough time anyways). This is a busy state maintained road in the middle of Columbia, Missouri near a college campus and my safety was put at risk while I had to find the next side street...

I reported this issue previously (11589255) and am providing an update: I took my car to the nearest dealer with my less-than-1-year-old non-functioning key card that TESLA told me I had to replace at a cost of 2/$45. I mentioned to the dealer, who is kind an helpful, about the automatic braking in cruise control. 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 up: "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...

This Tesla engages in "phantom braking" on a daily basis. I will be driving along at 70 mph on Adaptive Cruise Control, no other cars or otherwise around, and the brakes will suddenly slam on reducing speed to 40-50mph. It is clearly a sensor type issue. Seems to happen when a turn lane is sensed? a side road? who knows?? This has been a know issue for a very long time. it's dangerous as it will lead to rear end collision if anyone is behind. this happens without warning, almost daily, and I am not the only one experiencing this. Tesla people have no solutions. I do not routinely report things, but I feel very strongly that this is a major safety issue, so much that I am considering trading in the car for something else.

Was traveling along the [XXX] about 5 miles north of the [XXX]. Vehicle was in traffic awareness cruise control when it suddenly applied the brakes. Vehicle did not sound any warnings. Vehicle did not display any warnings. Vehicle made no attempt to warn driver of a braking event. Vehicle traffic awareness cruise control was set to 79 or 78 mph in a 70 mile per hour zone. I was able to push the accelerator pedal to regain speed but had already dropped to about 65 mph. Vehicle did not pass under a shaded section ( I. E. no bridge or trees or big rigs) There was change in color of the road top. My foot was resting just in front of the accelerator pedal. Fortunately for us, there was no vehicles directly behind us. This incident is the 3 of this kind in this vehicle. This has me spooked to...

While driving with the adaptive cruise control on, the vehicle suddenly braked. There was a large truck approaching from the other direction, but it was in its lane. There was no present danger. The hard breaking could have caused the following car to rear end us. It happened more than once, but this was the most dramatic braking.

FSD Stops in front of oncoming traffic. The car stops at a two-way stop sign. It pulls out into the intersection and detects traffic heading my way. It stops right in the middle of the oncoming traffic and just sits there. The oncoming traffic was moving about 50MPH. I had to hit the accelerator to get out of the way. FSD SEEMS TO WORK WELL 99% OF THE TIME. THE OTHER 1% MAY GET YOU KILLED. FULL SELF-DRIVING MODE. Tesla sent me a 30-day trial.

During two hour trip I experienced at least five incidents of so called Fantom Braking, when car engaged in Autopilot or adaptive cruise control brakes suddenly for no apparent reason. At least two time during this trip, the braking was really hard. This is very dangerous conditions and could result in serious accident if someone closely follow the vehicle. I had to keep my foot on the gas pedal during this trip to act if necessary. I have experienced these conditions before and reported it to Tesla. They basically ignored this complaint.

The contact owns a 2023 Tesla Model Y. The contact stated while driving approximately 75 MPH, the vehicle stopped inadvertently while the cruise control was engaged with an unknown red warning light illuminated. The contact had not depressed the brake pedal. The vehicle was not taken to the dealer or independent mechanic to be diagnosed or repaired. An unknown Tesla Service Center was notified and stated that the Firmware was being updated; however, the failure persisted. The contact stated that the Firmware was not updated in the vehicle. The manufacturer was not made aware of the issue. The approximate failure mileage was 2,000.

Took Tesla's 30-day free trial offer of Full Self-Driving (supervised) for my Model Y. Encountered several concerning situations: 1. Autopilot failed to detect a parking barrier arm, causing acceleration towards it; fortunately, I intervened in time. 2. Merged onto the highway in the wrong lane, prompting honks from vehicles behind me. 3. Wheel hit the side road curb when making a right turn, damaging the hubcaps and tire on the right rear side. Unsure if Tesla will take responsibility for repairs, but I feel it's important to share my experience to highlight that Autopilot may not be as advanced as expected.

While driving on the highway at 75mph, with "Traffic Aware Cruise Control" (aka, "Adaptive Cruise Control") enabled, a white napkin had blown into the lane ahead. This caused the car to slam on the brakes, and rapidly reduce speed to 20 mph, before I was able to re-accelerate back up to speed. I consider this a dangerous malfunction of the Adaptive Cruise Control system (and possibly the Automatic Emergency Braking system as well) on a high speed lane on a highway, which easily could have resulted in a high speed rear end collision and injury. (Fortunately, there wasn't any traffic close behind in the the lane.)