2023 TESLA MODEL 3 Forward Collision Avoidance Adaptive Cruise Control Problems

The Tesla ran a red light on two separate occasions while in full self driving mode. The first time it went through without me being able to intervene. Given it had done it before, the second time I was able to stop it. Both times occurred at the intersection of [XXX] and [XXX] . It has not done it at other intersections. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

While driving my Tesla equipped with Autopilot/Traffic-Aware Cruise Control, I experienced an unexpected and abrupt braking event. A vehicle had entered the center turn lane and had already cleared my lane, posing no obstruction to my path. Despite this, my Tesla suddenly applied the brakes without warning, causing a rapid deceleration that could have led to a rear-end collision had another vehicle been following closely. There were no visible hazards, warning messages, or alerts prior to the braking. The incident occurred in clear daylight conditions on a dry road, and the vehicle in the center turn lane was stationary or turning away from my lane. This appears to be a case of phantom braking, possibly due to misclassification of the adjacent vehicle or overcautious object detection by the vehicle’s Advanced Driver Assistance Systems (ADAS). This issue has occurred more than once in similar scenarios, and I believe it poses a...

Autopilot (adaptive cruise control) will freak out and slam on the brakes when a motorcycle passes by splitting lanes. This is a serious safety issue as cars and motorcycles behind me may not be able to react in time and cause a rear end collision or into the wall or vehicles next to them. It is impossible to override the braking with the accelerator as it will be too late by the time the car accelerates. Flooring the accelerator is also not a safe option.

My Tesla Model 3 disengaged cruise control while going 68 mph and braked hard for no apparent reason. I was driving northbound on I-405 at 3:45 a.m. going to LAX airport in the number 3 or 4 of six or seven lanes. Cruise control had been activated for at least 10 minutes before the incident at a speed of 68 mph. There was no traffic within half a mile before or after me due to the time of day. Neither my left or right foot were near either the brake or acceleration pedal, nor were they in motion. Both hands were on the steering wheel and no control was being activated. The only noticeable environmental condition is that the road surface had just changed from a dark gray asphalt to a bright white new concrete roadway. No emergency braking alert was seen or heard, so I do not think it...

Description of Problem: While driving under normal highway conditions on July 2, 2025, my Tesla suddenly and violently phantom braked — meaning it rapidly and without cause applied the brakes forcefully. There were no obstacles, vehicles, or hazards present. The sudden deceleration caused a severe flare-up of a recent cervical disc replacement surgery I had undergone. I experienced extreme neck and spinal pain and had to seek emergency medical attention. I am now under medical supervision, on pain medication, and unable to work. I contacted Tesla requesting the logs from the incident and have received no response. I’m deeply concerned about the safety of this vehicle and the lack of accountability for this known and previously investigated issue. I am in the process of retaining legal counsel and intend to pursue this further as a product liability and injury case.

While driving with the Adaptive Cruise Control enabled, on California highway 5 on Aug 28, 2023, the vehicle applied the brakes very aggressively and suddenly, shy of making a complete stop, without any object or shadow requiring it to do so - known as the "Phantom Breaking". It was so dangerous that if it was a weekend with many cars behind me, I would've been violently rear-ended and perhaps not lived to report this incident. This happened twice in two hours, to the point that I have never engaged the cruise system again. The Adaptive Cruise Control (ACC) system (which is part of the Auto Pilot system) on this vehicle is dangerous and should be avoided. I wish the vehicle had the [old fashioned] non-adaptive cruise control but it doesn't. Answering the questions: Nothing failed but the ACC clearly malfunctioned since there was no object, shadow, road animal, change in...

Curvature Assist feature agressively brakes while driving at highway speeds. This is supposed to slow down for curves, but frequently intervenes for straight, clearly marked lanes. Feature cannot be turned off. Drivers behind me have gotten agitated several times for the sudden, harsh braking, and I do not feel comfortable driving this car.

I was traveling at highway speeds on a highway with no vehicles or other obstacles in front of me. I had adaptive cruise control on. Then, the emergency brakes deployed for no reason (so called “phantom braking”), decelerating the car quickly. I turned off adaptive cruise control as fast as I could and nothing bad happened. But the situation was dangerous, as if a car was close behind me it could have rear ended my vehicle.

The full self driving is very dangerous. I had several events that put me in danger. Like, going to the wrong lane. Going to the wrong way. Changing lanes that almost hit a car good thing I took over right away. It made the other car upset and honk at me.

With the TACC system activated when traveling on a 2-lane road with a right-hand curve, if there is a semi-truck in the opposing lane, the emergency braking engages with a hard brake application. It can be overridden with accelerator pedal, but it endangers the car from collision with a following vehicle. There have been multiple incidents. I attempted to report the condition to Tesla customer support.

When traveling on an interstate highway with a speed limit of 65 mph, with navigation system operating and with TACC engaged, the system sometimes resets the maximum speed to that of the speed limit of the exit ramp (usually 40 mph) when I am NOT exiting the highway. This results in rapid deceleration significantly below the prevailing highway speed with the potential of causing a rear end collision from following traffic. This is consistent some certain exit ramps along I-93 in NH, and is prevalent when traveling in the right traffic lane.

The contact owns a 2023 Tesla Model 3. The contact stated while driving at various speeds with the Adaptive Cruise Control or ADAS Self Driving feature activated, the vehicle would independently decelerate without warning. During the failure, there were no other vehicles or objects nearby. The Service Center was notified of the failure through the Tesla App. The contact was informed that since a time stamp could not be provided for each failure, the Technician could not determine the cause of the failure. The manufacturer was not yet made aware of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 28,000.

Vehicle was in cruise control, and cruise control did not deactivate causing the vehicle to propel into a building, causing airbag deployment. Safety sensors of car failed to recognize building, other vehicles, and obstructions as required.

On [XXX], I was driving my Tesla model 3 from California to my new home in Idaho as part of my move there. During the day, I had 6 or 7 situations where the car would suddenly go into full regenerative braking, or outright apply the brakes for no apparent reason. Most of these events took place of freeways at freeways speeds, or on highways (not freeways) at the local speed limit. Every situation was when I had supervised self drive or traffic aware cruise control enabled. These situations were extremely startling and in my opinion potentially dangerous. I don't want to imagine what might have happened if one of these "phantom braking" events had occurred with a heavy 18 wheeler behind me in traffic. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Tesla Motors has two self-driving features, a mode they call enhanced autopilot and Full Self-Driving. Enhanced Autopilot is used primarily on freeways, and allows the car to switch lanes without driver's assistance, while maintaining the speed of traffic. Full Self Driving is a separate system in and of itself that relies on far more sensors, and is far more complex, as it needs to be in order to handle all the nuances of allowing a car to drive itself on and around city streets. During the month of April ,Tesla previewed the supposed improvements in its full self driving mode by releasing it to everyone for free for that month. I was exiting the [XXX] freeway in Los Angeles, utilizing the enhanced autopilot feature to navigate myself to my destination. At this exit, the car makes a right on [XXX], drives down about 500 feet and then makes another right...

The contact owns a 2023 Tesla Model 3. The contact stated while driving approximately 72 MPH with the cruise control activated, the vehicle abruptly decelerated and nearly came to a complete stop. During the failure, there were no other vehicles or objects nearby. The cause of the failure was not yet determined. The local dealer was notified of the failure, but no assistance was offered. The manufacturer was not yet contacted. The failure mileage was 6,730. The contact stated the primary concern is that unexpected emergency braking for no apparent reason on our 2023 Tesla Model 3 was dangerous. The dealer indicated that their review of the data for the approximate date and time did not show anything and cancelled the appointment.

when I was driving my Tesla Model 3 with FSD exiting [XXX] , the FSD directed me to a wrong routing. I corrected the direction by taking over the FSD, the car then lost its full braking system. I was not aware of it until my car slipped backward at a stop and hit a car behind me. The other driver is good enough to let me go, but my Tesla back bumper was damaged. When I got home and read the message on the screen, I was told that the braking hold was disabled, autopilot was disabled, braking charge was disabled, and wheel alignment was disabled, and more. I contacted Tesla and make an appointment half a month later. I was also told that the Tesla recommends to have alignment adjusted every 6000 miles or every 6 months- while I was not aware of this, I thought Tesla is...

1. My 90 year-old mother-in law got trapped inside the car in very bad weather because my phone key wouldn't open the door after I got out and walked her elderly friend to the door of her house about 20 feet away, and then walked back to the Tesla. I've been able to reproduce the problem repeatedly, of course without my mother-in-law in the car. 2. Several near-misses because, unlike most other cars, the Tesla's blind-spot warning system, and many other basic control functions such as adjusting the windshield wipers, opening the glove compartment, etc, require you to take your eyes off the road. For example changing lanes requires you to look away from the lane you're about to move into to check the blind spot display on the touch screen. 3. Several near misses because easing up on the accelerator slows down the car forcefully 98% of the time,...

When using cruise control, my 2023 Tesla Model 3 will aggressively brake without warning or apparent cause. The braking is near maximal - as though the vehicle is attempting to prevent an imminent collision. This defect poses a hazard to occupants of vehicles behind mine as well as myself and my passengers as sudden braking could cause a rear-end collision and cascading loss of control. Inclement weather would have exacerbated the problem. This problem is documented. From my brief research it appears Phantom Braking has been the subject of a NHTSA investigation previously but for prior model years. The issue persists. When I questioned Tesla Service regarding this life and limb threatening problem their staff was aware and well versed at requesting the customer report the issue as though it were a minor software glitch. This is a significantly more serious problem necessitating an appropriate response.

The adaptive cruise control of the Tesla Model 3, like other Tesla models, rely on the cameras for determining speed. While driving on the freeway the Tesla Model 3 began to abruptly break almost causing a car to rear-end me. This has occurred multiple times since the full self driving was released to everyone. I discovered that the software reads the freeway's "Minimum Speed Limit" signs as the maximum speed limit. I reached out to Tesla and was told that there would be a firmware up-date but one has not come out since.

Constant lane change while driving has gotten out of control. A couple of instance the vehicle has changed lanes without manual manipulation. This is getting out of hand and has certainly put risks on my family while operating vehicle.

The car phantom brakes constantly (at least every 10 miles) when using cruise control. You will be driving highway speed and the car will slam on the brakes for no reason,, making the cruise control dangerous and unusable

I decided to take my first road trip in the new Telsa Model 3. The trip was from Seattle to Portland down [XXX] which is a pretty straight and easy road. Because of this I decided to use the Autopilot feature (I purchased the FSD package) to help take the stress out of driving. (Note, this is my first Electric Vehicle AND even my first vehicle with a screen, so I stayed very aware and present the whole time driving with hands on wheel). After a while of driving I noticed the 'Arrow' icon on the maps, which indicates my car, wasn't centered on the road and was in fact about quarter to half an inch to the right of the road. I didn't think much of it as I've seen my Google maps do this before and after a little bit it readjust and fixes it. As the car...

The Autopilot feature of my Tesla Model 3 was safe and effective prior to the update mandated by NHTSA. With the recent update, I now receive multiple warnings during my drive on a daily basis for checking my mirrors or adjusting the radio. These are loud and startling. This update was completely unnecessary and counterproductive to my safety. I'm sure some Tesla drivers drive recklessly, but it makes just as much sense to require ICE vehicle manufacturers to install hardware/software to prevent drivers from doing donuts. Please reconsider the "recall" you mandated of Tesla. It was unhelpful. Respectfully, [XXX] Palmdale, CA INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am writing to report several safety issues that I have experienced with my Tesla Model 3. These issues pose a significant risk to my safety and the safety of other road users. I kindly request that you investigate these matters thoroughly and take appropriate action to address them. 1. Steering Wheel Failure: On three separate occasions, the steering wheel of my Tesla Model 3 suddenly stopped working. Two of these incidents occurred while driving on the highway, which made it extremely difficult for me to maintain control of the vehicle. This sudden loss of steering functionality is a serious safety concern and could potentially lead to accidents and injuries. 2. False Forward Collision Warnings: The car's forward collision warning system has been providing false warnings, which has had a negative impact on my insurance premiums. Despite the fact that my insurance company is aware of the issue and acknowledges...

Repeated "phantom braking". With cruise control engaged and zero traffic in front of the vehicle, false readings on the collision detection system will cause strong, sudden, and unpredictable braking. Highly unsafe particularly in conditions where there is traffic behind the vehicle. In my first 900 miles of driving the vehicle there have been 20-25 of such incidents. When triggered, breaking force is strong and deceleration is sudden.

Driving down the highway on a clear day with nothing in front of me, with adaptive cruise control turned on, the car suddenly started braking as if it was in full regen braking. I had to hit the accelerator pedal to override the braking.

Recent recall update makes auto pilot more dangerous and distracting. I am getting alerts while my hands are on the steering wheel and paying attention to the road, which then causes me to take my eyes off the road to see the alert. Which I then get kicked out of autopilot. Was using autopilot and got an alert the max speed was reduced due to road conditions and when I looked at the alert got another alert to pay attention to the road, then was immediately kicked out of autopilot. This is extremely dangerous especially if road conditions are deteriorating and to have to constantly be looking at all the new and frequent alert. The recent recall has made me constantly have to take my eyes off the road. I can even check my side view mirrors without getting a pay attention alert.

The most current "safety" recall software 2023.44.30 which made the autopilot more alert to the driver has made the car less safe. Before the update, autopilot would work as intended and kept the car safe in the lane. Now, even when doing everything correctly, I get nothing but alerts which takes my attention away from the road. The car was safer before the mandatory government update. Honestly not surprised that NHTSA made the car less safe. Let Tesla do what's best for their cars, they had it working great before you got involved. Thanks.

Subject: Concerns Over NHTSA-Forced Changes to Tesla Model 3 Autopilot I am a Tesla Model 3 owner writing to express concerns about recent autopilot updates, seemingly implemented following NHTSA directives. These updates have significantly altered the system's operation, leading to potential safety risks. Previously, the autopilot required minimal, intuitive steering interaction. However, the new update, presumably in response to NHTSA's safety requirements, demands frequent and forceful steering inputs. This has caused abrupt and frequent accidental autopilot disengagements, a stark contrast to my earlier, safer experiences. It is extremely dangerous when it is not clear to the driver that the system has been disengaged and the nags from the system frequently cause accidental disengagements that don't always get noticed by the driver who is more focused on paying attention to the road than the screen. The heightened sensitivity of the system is not only inconvenient but hazardous. The need for constant,...

Autopilot now requires so much force to confirm you have your hands on the wheel it’s disengages causing rapid deceleration and steering into the other lane or shoulder. Also requires confirmation at times when the driver should be looking at mirrors when passing etc instead of watching the display.

Autosteer was engaged while approaching Weatherford, OK on I40 - Sporadically, the vehicle slammed on the brakes, even though nothing was in front of me, and nothing was behind. The vehicle dropped in speed by almost 20 mph.

Summary: FSD malfunctioned, failed to disengage, causing loss of steering control, thus causing car to steer into wrong lane and resulting in an accident. Tesla Service Center refused to inspect unless car is fixed. Car was sent to Crash Champions ( autobody shop) and was quoted $35k to fix. Car was deemed as totaled by Tesla insurance. No response from [email protected] I suspect that the latest FSD software update has caused my car to lose control. Time of incident: 19:28 pm Location : [XXX] , [XXX] Entering from [XXX] . Weather condition: Clear night, well lit. Low traffic. What happened:
 My car has been driving in FSD on Lawrence Expressway and it was doing everything correctly. Approaching that upcoming tight bend, the FSD slowed down the car, and I took over by steering the steering wheel to the right to deactivate FSD and taking the tight turn, right before the...

When using Cruise control the car will brake suddenly even when there is no obstacle in front. This happens often. The phantom braking can be dangerous if someone is following at freeway speeds and not expecting the car ahead to brake. Also, when using cruise control the windshield wipers are automatically placed on auto. The windshield wipers will then go on and off as the sunlight changes, when no precipitation is evident. We often have to pause cruise control because the windshield wipers will not stop.

Vehicle will repeatedly aggressively brake while using “Enhanced Autopilot”, posing a danger to any cars behind. Complaints given to Tesla have been unresolved.

Adaptive cruise control falsely decelerated on dozens of occasions during a single 500 mile road trip. Sudden braking in the vicinity of other vehicles may cause a crash. Tesla's service technician stated "no hardware related faults were found" and "potential incorrect object detections leading to slowdowns may occur".

Phantom Breaking when in adoptive cruise control

the car suddenly braked while using autopilot drivers assist while at highway speeds. There were no cars in front of me when it occurred. I had to take control of the car and accelerate to avoid causing a crash.

The contact owns a 2023 Tesla Model 3. The contact stated while driving at various speeds with the cruise control activated, the vehicle experienced phantom braking. The vehicle was diagnosed by a mobile application where it was diagnosed that the firmware needed to be updated. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 4,000.

Will Randomly slam on the brakes saying that there is something in front of cars on the highway. This has caused me to almost get into a few accidents suddenly slamming on the breaks at 75 mph. It has happened numerous times and the car feels unsafe to drive. One example it slammed on the brakes in front of an 18 wheeler causing it to almost hit me but I had to slam on the gas very rapidly. There is usually a warning light on about parking break not working when these happen.

On 2 separate occasions, the cruise control set to 80 and suddenly decelerates. Very scary. Term being used in Tesla chat rooms is 'phantom breaking'.

Going down secondary road with cruise control on at 42 mph ; no auto steer just plain cruise control. The car all the sudden slams on the brakes for no reason causing the car behind to slam on brakes and almost causing a accident. This needs to be addressed or the cruise control disabled until they fix the issue.

Tesla Model 3 Policy #: [XXX] Claim Number: [XXX] I hope this email finds you well. I am writing to report an incident involving my Tesla Model 3 (Blue) and to initiate the process for an insurance claim. The incident occurred on [XXX], at approximately 2:15 PM. My fiancée was the driver of the vehicle at the time of the incident. Incident Details: - Date: [XXX] - Time: Approximately [XXX] - Vehicle: Tesla Model 3 (Blue) Location: The incident took place on the freeway merge from [XXX], where it merges onto [XXX]. Heading home. Circumstances: My fiancée was operating the vehicle in Autopilot mode while maintaining her hands securely on the steering wheel. As she approached the freeway merge from ramp [XXX], heading onto [XXX], she experienced an unexpected jolt. Despite her continuous control of the steering wheel, the Autopilot system seemed to be accelerating without her input. Simultaneously, my...

While on a cross country trip and while on the highway using the Tesla auto pilot and/or adaptive cruise control, we experienced numerous phantom braking incidents. Several while driving during the day with no other vehicles around and several while passing semi trucks in the other lane. At night the same thing occurred and on one occasion, with no other vehicles around, suddenly braked from 70 mph to near stop. Had we been on a wet or icy surface, there is the possibility of control issue.

Multiple times, the vehicle braked on its own while traveling eastbound on the Interstate 8 freeway between Yuma, AZ & Gila Bend, AZ. This was when no other vehicle or obstruction was on the freeway within a mile of the vehicle. The braking was very jarring, and if another vehicle was behind us it could have easily caused a high speed rear-end collision.

The Driver Assistance System fails. Specifically, the cruse control, parking assistance, blind spot monitor, display of other objects, lane identification, stop sign or traffic light recognition and other safety features fail repeatedly.

While on our first road trip in this vehicle, we engaged Adaptive Cruise Control (ACC). After about 30 minutes, the vehicle suddenly (within 1-2 seconds), and without warning, decelerated from 75 mph to under 50 mph. After re-engaging ACC, exactly the same thing happened again 5 minutes or so later. Thereafter, we did not use ACC, and the car ran fine. This was a safety hazard because if someone had been following us when these incidents happened, it could have resulted in a rear-end collision. We have not yet taken our vehicle to a service center. Since there was no resulting accident, we have not reported this to any authority. Clearly, however, our Tesla Model 3 has a safety problem.

When cruise control is engaged, the vehicle suddenly decelerates, (at times dropping speed by more than 20 mph in less than 2 seconds). This occurs as often as 5-10 times in a single 60mi trip, and occurs at least once per trip on this same route (divided highway, sometimes with hills, often with no other cars ahead of or around the vehicle, speed 60-70mph) These events are unsafe because unexpected braking is a hazard for following cars and my passengers. My job as a driver is to be as predictable as possible, but when I use the cruise control the car behaves unpredictability Problem reported to dealer, confirmed by remote diagnostic, and car was serviced but the problem got worse. There are no warning lamps or error messages displayed in conjunction with these sudden braking events. First appeared when the car reached 2000miles on odometer

While driving on a two lane highway I experience daily ghost braking incidents. While doing 75, in both cruise and autopilot mode, the car will slam on the brakes when approaching a semi in the right lane. Today it even swerved to the right without the semi moving out of its lane. I also experience panic braking if a car crosses the lanes in front of me even if it is 500m away and the crossing car even left the road before braking occurs.

When on a recent trip from Salt Lake City to Denver Via I 15 to hwy 6 and on I 70 When it was in cruse control and also auto pilot the car would on it's own brake. Some of the time it would brake very harshly others it would not be so violet ,but would certainly be some thing that could cause a very bad accident. The only solution Tesla service would offer was to go on a test drive to see it happen. This could take posably many miles, and then said they did not have a solution.