Assist Problems of Tesla Model Y - part 1

Tesla’s full self-driving (fsd) system has repeatedly demonstrated unsafe behavior in my 2021 Model Y (VIN [xxx] , ~60,184 miles). The issues involve adaptive cruise control, lane keeping assistance, and forward collision warning. Fsd frequently follows vehicles too closely, leaving insufficient distance. When I disengage, I am left with no safe option: braking hard risks being rear-ended and triggers a hard-braking event, while lifting off the accelerator leaves me dangerously close, still flagged as unsafe following. Fsd often waits until less than a mile before highway exits to attempt lane changes, causing last-second darting, missed exits, or unsafe maneuvers. It also performs excessive and unnecessary lane changes that add risk without improving efficiency. Merges are frequently unsafe, forcing me to brake hard to let others pass or accelerate aggressively to avoid being cut off. On several occasions, fsd has jerked or swerved into adjacent lanes without signaling, seemingly triggered by shadows or changes in the road surface. These phantom maneuvers are unpredictable and hazardous. On [xxx] at about [xxx], at a t-shaped intersection, fsd failed to yield to a vehicle traveling straight with the right of way while I was making a left turn. I had to slam on the brakes to disengage, narrowly avoiding a collision. This was the second such incident in the same intersection in one week. These repeated failures—unsafe following, late exit attempts, failed merges, phantom swerves, and failure to yield—create significant risks for me, my passengers, and surrounding drivers. The problem has been reported to Tesla multiple times via in-car voice reports and a written service request, and logs from my vehicle should confirm these events. No warning lamps or system alerts appeared before or during the failures. 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 🔎.

I would like to report an incident where Tesla fsd got confused by tire marks on a bridge deck and, soon after, by shadows on pavement. On both occasions, fsd steered the car across the double yellow before returning to its lane. There was no traffic and the car slowed down, so I let it play to see what would happen. Your site does not allow uploading videos so I'm providing youtube links to the videos showing the incidents. [xxx] [xxx] 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 🔎.

Accident involving my Tesla while the full self-driving (fsd) feature was engaged. Vehicle information: [2022, model - y, ] incident summary: while driving with fsd engaged, the vehicle hydroplaned and the steering wheel started spinning uncontrollably and despite attempts, couldn't regain control of the car, and it spun while crossing lanes. A truck hit the front of the car and ended up on shoulder.

See all problems of the 2022 Tesla Model Y 🔎.

Las luces son demaciado fuertes y el aire conducionsdonen florida no funciona.

See all problems of the 2023 Tesla Model Y 🔎.

Update to odi 11678614. This problem applies to non-fsd (full self driving) Tesla Model Y cars. Tesla's manual describes autopilot as traffic aware cruise control - it's the first step on non-fsd cars. The second step on non-fsd cars, autosteer, is active lane keeping. In older ys, the first stalk pull engages autopilot, second pull engages autosteer. 2026 juniper doesn't have a stalk - a single scroll wheel press engages both. I read the 300 page juniper 2026 Model Y manual before driving it for the first time. On page 108, it lists 7 things that will cause autopilot to disengage. I presumed that comprehensive list was complete. Unable to attach. Having *autopilot* disengage when turning the wheel in *autosteer* is not listed. During my 59k miles on my 2021 model y, I used autosteer for at least 20k miles. Turning the wheel in autosteer did * disengage autopilot. In my first emergency situation in the 2026 juniper Model Y, turning the wheel * disengage autopilot, and the regen properly kicked in for the disengagement. This action came very close to causing a serious accident. My objections are 1) the action of *autopilot* (disengage / remain engaged) when the wheel is turned in *autosteer* is not documented, and 2) it's different between the old and new ys using the same current software. I understand there were problems with autopilot remaining engaged, and perhaps the change was a good idea; that's an entirely different discussion. Make the action consistent and document it and I'm happy. Summary: in heavy traffic, while on autopilot / autosteer (cruise + active lane keeping), the car beside me suddenly tried to pull into my lane. I made an emergency lane change by turning the wheel, but the cruise also disengaged, (contrary to operation in the prior model) and went to maxiumum regen braking, causing the car behind me in the new lane to nearly rear-end me. Punching the accelerator during the surprising braking avoided the collision.

I've driven my old 2021 Tesla Model Y for 4 years / 59k miles. Four days ago, I got a new 2026 Tesla Model Y. The new y has made a change to the interaction of the cruise control and automatic lane keeping. In the old one, first cruise was enabled, then lane keeping. If you disengaged lane keeping by overriding the steering wheel, cruise control was maintained. In the new y, a single selection enables both cruise and lane keeping. The safety issue is that overriding lane keeping by turning the steering wheel disengages both features at once - the old method kept cruise control enabled. I was driving in heavy traffic today on a 6 lane interstate with cruise and lane keeping enabled. The car next to me abruptly swerved into my lane, causing me to make an emergency lane change to avoid a collision. When I overrode the lane keeping to avoid the other car by turning the steering wheel, my cruise control also disengaged (unlike the old system), which caused maximum regenerative braking to kick in, abruptly slowing me in the new lane. I had to punch the accelerator to avoid being rear-ended in the new lane. This change in lane-keeping / cruise control applies to all new 2025/2026 Model Ys - the "juniper" model update. This change, according to reddit and facebook forums, seems to be universally hated and many other drivers have raised the same safety concerns. I agree with them, but didn't make a report until now because I had not yet experienced an issue where this almost contributed to a high-speed crash. Thank you.

I’ve had to replace the steering rack, upper and lower control arm for the left wheel, entire computer motherboard. I drove the car for less than 70k miles and zero accidents and zero modifications. Yes I am open for inspection. While driving with fsd lane keep failed causing the car to veer to other lane. The Tesla repair shop said the steering rack was sending errors and the whole rack needs to be replaced. They said it was both electrical and mechanical failure. Previously I’ve had the control arms replaced because it was making clicking noise when I turn the wheel. They said it was due to front compliance link and lateral link issues. Also had entire computer board replaced previously. The error message after the incident was lane assist disabled, steering assist reduced. In the maintenance mode it said “ the drive interface (di) or drive inverter (dix) electronic control unit (ecu) detects a low voltage (lv) battery undervoltage event. ”.

I was driving with fsd on highway 520 and had to intervene to take control when a bumper showed up on the road. When fsd was driving in standard mode, it was driving at 72 miles/ hr and was too close to the prior car. When the prior car quickly dodged the bumper my car was already too close to the bumper and needed to make a quick turn. The car almost rolled over. Dashcam video: https://drive. Google. Com/file/d/1bp11q2d-nrpz8rm1haq2eymaros6ug7h/view?usp=drive_link.

I owned the vehicle less than a month, using full supervised drive, fsd. Today 6/22/2025 1:45 pm almost had an accident. The vehicle was in the right made a left turn crossing a yellow line, then made a turn in a white line, in front of the vehicle behind me. I took control of the vehicle to proceed in the correct lane. On another occasion it made a right turn, corrected itself to the left lane as it should have done. I am hearing impaired, focus on the road, cannot look at the screen monitor while driving. The vehicle stopped, advised me fsd was inoperable, had to manual drive to my destination. There is no warning, alerts for the hearing impaired. Other issues driving in the wrong lane, then at the last minute changes to the correct lane, I am certain cutting off drivers. Unknown.

My 2023 Tesla Model Y has produced concerningly loud mechanical noises while parked, plugged in, and not being driven. I’ve experienced this on two separate occasions—June 17 and June 22, 2025—after the vehicle had been parked for several hours in a garage. Upon waking the car (without driving it), it emitted a very loud and persistent mechanical sound, both while plugged in and even after unplugging. The volume and intensity of these sounds were far beyond normal operation and raised immediate concerns of overheating, component failure, or an underlying safety defect. The experience felt unsafe enough that we considered exiting the vehicle both times. We attempted to schedule a service appointment through the Tesla app, but received no response, and the request appears to have disappeared with no record remaining in the app. Based on the nature of the sound, we’re unsure what it could be, and may indicate a malfunction in the cooling system or battery thermal management. I have video documentation of both incidents, along with video from other nights with similar temperatures where this did not occur, for comparison. I’m submitting this report out of genuine concern for vehicle safety and reliability, especially given Tesla’s known issues with thermal and battery behavior in high-heat conditions. These noises began recently, and we have owned the car since 2022 and have driven it consistently in high texas heat every summer. This suggests a new or developing malfunction, not a feature of normal operation.

Tesla's fsd functions slowly has been reduced in the last years. Firts Tesla disabled the double pull function, resulted taken away the standard cruise control function. Lately, the fully paid ($12000) fsd is not recognizing streetsigns anymore, which worked perfectly before. This function is crucial to manage speeds, lanes, pedestrians and school zones or just attend in public roads! Tesla service center refuses to fix this issue or offer any additional solutions! this is very concerning and those vehicles with full fsd are not safe to operate on public roads anymore! thank you.

We experienced an extremely dangerous and life threatening situation with Tesla y model on Saturday, may 31st around 3:48pm and would like to report to NHTSA. We were driving on rt 3 going towards nashua and my Tesla-y car when the steering wheel froze and I got message that front camera was not working. When I tried to steer the car in the lane, the car suddenly braked and took two 360 degree spins (turns) on the highway with cars streaming at high speed around us. We went from the left lane to the right most lane after two 360 degree spins and ended in the right lane. Luckily, no other autos hit us and I was able to take control of the car and pull over in the right lane. The incident is recorded int the Tesla's harddrive which we can make this available to you. The car started working normally so we drove back home. We have had minor control incidents with the lane assit and auto pilot systems of this car in 2023 and 2024. We have complained and showed the problem to Tesla dealer in watertown, MA. However they said there is nothing wrong with the car. We request you to investigate this incident with Tesla and find out the cause for the car to take this dangerous breaking and spinning incident on a highway. Thanks, rashida and luvai motiwalla (978)996-9535.

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 my wife or daughter drive the car. Certain 2024 and 2025 models with this problem have been recalled for new computers. This must be expanded to include 2023 models as well.

While driving westbound on lee jackson memorial highway (u. S. Route 50) after passing the intersection with stonecroft boulevard in chantilly, virginia, the autopilot system on my Tesla Model Y malfunctioned. Without any warning or obstacle in my lane, the vehicle suddenly and sharply veered to the right, directly toward two vehicles traveling in the adjacent lane. I was holding the steering wheel at the time and was able to immediately countersteer to prevent a collision. There were no audible or visual warnings from the vehicle before or during the incident. The autopilot system did not display any messages or alerts, and no braking or turn signal was engaged by the system. The lane shift was abrupt and uncommanded. The dashcam footage clearly captured the incident, and it is available for inspection upon request. To my knowledge, the issue has not yet been reproduced or inspected by the manufacturer or service center. The vehicle has not been examined by police, insurance representatives, or others at this time. This unexpected maneuver created a serious safety risk for myself and nearby drivers.

1. Front passenger side wheel and auto steering system malfunctioned. Yes it is available for inspection. 2. My car was not drivable and I was stuck on the leftmost lane of highway with fast traffic passing by. Had to call 911 to move myself to safety. 3. Not yet 4. Vehicle has been inspected by the police 5. No warning lamps or message prior to failure.

Autopilot suddenly slams on the brakes going [xxx] on [xxx] just north of ankeny, IA when you hit the underpass at [xxx] [xxx] , [xxx] ). This happens every time for the past year about. No software update has fixed this yet. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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

Computer system failure causing all cameras to fail, mirrors to stay darkened even in daylight, navigation system not updating, collision and lane departure feature failure. Issues were reported to Tesla and an ap 4 computer replacement were scheduled, however service has been delayed for several weeks ( now 9 Jan 2025). The car does not feel sufficiently safe to drive with the impaired mirror visibility couples with the lack of any cameras or safety features working.

All cameras not working with latest software update - told need new ap4 computer on 2024 Model Y which is 2 months old. Tesla service advisor states - car is totally safe to drive with just mirrors till appointment in few weeks. No backup camera, navigation, battery life dying faster. It seems like a liability to me to drive this way and very negligent to me.

Model y s/w version 12. 5. 4. 1 the Model Y can be made to oscillate in the travel lane at highway speeds I think I experienced this at 70-75, it would seem to apply at any capable speed. Proper behavior: 1) driving on the highway in fsd 2) trigger the left or right turn signal to initiate a lane change by automation. What actually occurs: 1) driving on the highway in fsd 2) hold the turn signal in the desired up or down position to initiate a lane change. 3) the Tesla begins to switch lanes, and will continue to further its lane change provided you continue to hold the turn signal (up/down). 4) if you release the turn signal input "early", that is prior to the Tesla determining that the new lane is the current lane, it will immediately begin reverting to the original lane that you attempted to leave. 5) it begins to over correct, requiring maybe 5 damped oscillations. Its very uncomfortable, and exposes a vehicle on the edge of control - the vehicle is not traveling neutrally on its suspension. To be clear, it is damped, but I don't see how it could be described as stable at highway speeds.

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 driving on highways the car will jerk the steering wheel and cause the car to turn when the car is in the center of the lane. This causes the driver to counter the force from the steering wheel to keep the car on the road. This only happens when autopilot and full self driving are not being used. I have taken it to the service center twice. The first time they said it was an issue with the car alignment so they realigned the tires and the second time they said it was a problem with the car’s computer so they replaced the computer. This continues to happen and is dangerous. Sometimes it will give a lane departure warning while other times there are no warnings.

On [xxx] , south of austin, north of [xxx] , on both directions, there are many turn lanes on either side. These turn lanes fork from either of the two highway lanes and do not have clear lane markings (by design, not due to fading) until the lane width is full. Tesla autopilot with lane assist will, at multiple times along this route, center the car between the current lane and the emerging turn. Once the lane markings begin , the car will violently jerk back into a lane. Avoidance of these situations requires a takeover. Along this route, this is particularly dangerous on banks, hills, and in traffic (even with max following distance configured) due to reduced visibility of the start of the lane markings. One example of this is at [xxx] , although there are many others along this route in both directions. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Tesla’s “autosteer” function inexplicably and suddenly shifted lanes and sideswiped the other car that was passing me on the right. This defect of the “autosteer” function took control of the steering of the car, even with my two hands on the wheel. I do not know why the Tesla suddenly shifted in the intersection or, more importantly, why it did not detect the other car. I did see the other car approaching before the Tesla swerved into it. I wanted to remain in the left lane because it was the correct and safest thing to do. There were no obstacles ahead of me, and the left lane continued normally.

I have Tesla’s fsd software that consistently tries to enter closed highway ramps where the flags, lights and barriers are clearly marked as “do not enter”. I have reported this to Tesla a dozen times with no improvement or response. I’m sure there will be retaliation for this but I am sick and tired of swerving to avoid a fatal collision. Too many other safety issues with fsd to document.

See all problems of the 2020 Tesla Model Y 🔎.

What component or system failed or malfunctioned, and is it available for inspection upon request? system computer. After a over the air (ota) update, most driver assistive functions are inoperative. System feedback display sometime goes black (speedometer, controls, backup camera, etc). After manufacturer serviced car to verify and resolve issue, issue was not corrected. Screen continues to error, asking for a software update. Per the manufacturer this is a computer issue with the cache, and being told to replace computer. How was your safety or the safety of others put at risk? since the driver feedback display and cameras are sometimes non-functional. Back up camera can be unusable, lane keeping, and cruise control are inoperative. Has the problem been reproduced or confirmed by a dealer or independent service center? yes has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? by an manufacturer repair center. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no, they appeared after an ota update 9-Aug-2024.

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.

Since the recall earlier this year on for the autopilot, I now have a car that is actually more dangerous as it emits a very jarring audible warning when I engage the autosteer option. This has actually caused me to jump in my seat and cause me to turn the wheel creating a dangerous situation. Not only is this a potential accident waiting to happen, it is also superfluous as the driver is the one who pulls in the turn signal stall to engage the autopilot and the autosteer functionality. I do not need a very loud and startling tone to sound advising me that the autosteer function is engaged. Please remove this as it is creating a dangerous driving environment. I have friends who also have Teslas and they confirm this hazardous condition exists in their cars as well. Thanks.

I was on [xxx] heading towards chicago and following the traffic. I started changing the line to pass the vehicle in front of me and suddenly my Tesla completely lost control and started drifting to the sides. I released the accelerator right away but it made it even worse. It seems that acceleration continues to happen that’s what made car to drift. Eventually car slowed down and I was able to make it to my line. I don’t understand why line assistance didn’t work to keep the vehicle stable, why after releasing accelerator the vehicle continued to gain the speed. It was sunny day and dry road. No foreign objects on the highway. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Tesla fsd consistently ignores temporary lane closures, and will cheerfully try to drive over the barrier poles. The locale is the san diego pure water project construction zones. They set up lane closures that change every week or so. They use a line of red poles along the middle of the road to block off a lane and direct both lanes of traffic into one lane. Sometimes there is also a large closed sign in the middle of the closed lane. Tesla never sees the red poles and often does not see the closed sign. I attach several photos each showing both the Tesla screen and reality in the same image. (unless Tesla fixes this soon) I can send you lots more photos if you wish.

I took Tesla to arbitration over defects and deceptive practices and their legal representative committed fraud by playing my own dashcam video and muting it so you couldn’t hear the auditory warnings the car makes when it makes errors. In this case the car was driving itself into oncoming traffic and stopping on the highway for non existent stop signs. I have reported this to the florida bar and florida state attorney office ashley moody who is now investigating.

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 filed many bug reports, and even contacted a service center about the issue. The service center claims to be aware of it, and said that they escalated the problem to the software team, but no fix has been issued in over a year. Either they just don't care about this issue and are too busy trying to work on fsd and robotaxi to fix it, or they are purposely not fixing it to force people to subscribe to fsd as fsd doesn't have this issue.

I've had enhanced autopilot since June 24 2022. Since that time I've accumulated approximately 15,000 miles, with approximately 80% bing auto pilot miles. On may 14th my car was upgraded to "full self driving (supervised)" without my concent. I was given 30 days of fsd trial, with no way to opt out. I was presented with a software upgrade that looked like a normal upgrade, however after the upgrade I was told I had fsd. I immediately disabled fsd, only enabling autopilot (highway only), and attempted a drive from fairfield, CA to concord CA along I-680. During the drive, the car was not able to maintain lane control, and would suddenly apply hard braking randomly. On two occasions the car accelerated towards stopped traffic, and I had to disengage autopilot. I ended up manually driving the car as it was unsafe to use to assistive systems. I contacted Tesla, who said they where unable to remove the fsd trial, and I was stuck with the upgrade, even though it made the car unsafe to drive.

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.

On Sunday may 12, I was driving to work, there was a moment where I felt the steering wheel was very stiff to the point where it felt weird and hard to control. I felt the two front wheels a bit odd, but then it went back to normal. I paid no attention to it after. As I was driving on highway 820 west, my car started to automatically move to the left and I tried steering my wheel to get back in lane, but the steering wheel got so stiff that even using all my might I could not steer it. Eventually the car slammed against the cement wall three times as it spins. At the end, the police came on site and saw that the two front wheels were pulled inward. I believe it was a software/technology malfunction.