Adaptive Cruise Control problems of the 2022 Tesla Model 3 - part 2

My car was set on navigate on autopilot, and normally it decreases speed when detecting change in speed limit. But for last couple of times, it's been not decreasing speed. On July 4th, 2023, I was driving and it did not change the speed limit based on the changes on the road. The speed limit had changed from 60 to 55, and it didn't change in the car. Also, Tesla just abruptly slowed down multiple times without any warning. There's no obstruction in the road, but it just keeps slowing down without a reason. Like the speed limit would be 45, and it's slowed down to 20. The car ahead is faster, and no one is walking across. It's just random.

I have been forced to stop using cruise control on my Tesla Model 3. Over the past few years, the car will repeatedly slam on the brakes for no good reason when I am driving on the highway. I understand this behavior is known as "phantom braking. " the car will suddenly and unexpectedly drop speed by 10-20 mph on the highway. I am so worried that someone will rear-end my vehicle that I cannot use cruise control anymore. For some unexplained reason, the Tesla Model 3 does not currently have a "dumb" cruise control that I could use instead.

The Tesla in vehicle navigation notified to turn the incorrect direction on to canal rd NW washington, DC 20057 during one-way operation of the reversable parkway. The turn was notified from clark pl NW where there was no visual notification of the traffic being one-way. This culminated in a near head on collision in a 40 mph zone.

On 9 different occasions, my vehicle was operating in cruise control and slammed on the brakes for no reason. Fortunately, no vehicle was behind me. If there were I would have been rear-ended all 9 times. This has happed 8 times on the freeway and one time on surface streets.

During a 30 mile trip on a two lane highway I activated the cruise control. A number of times the car made significant slow downs. They seamed to be associated with oncoming trafic. I then shut off the cruise control. Later on when I could see there where no oncoming cars I again set the cruise control for 65 mph. After only about 15 seconds the car made a rapid deceleation. The deceleration was rapid enough to cause an ice chest sitting on the passangers side of the front floorboard to roll over. I shut of the cruise control and did not use it again for the remainder of the trip.

I was driving on interstate 25 north towards santa fe nm at about 75mph with the cruise control engaged. The car abruptly slowed down to about 60 mph for no apparent reason. The slow down was so quick that passengers were pushed forward in their seats. This has happened before when cruise control was engaged. I had hoped that this was resolved by Tesla. There was not any vehicles in front of me for the car to believe a slowdown was necessary. I reported this to Tesla for repair and they replied that a repair was not necessary. They gave me instructions to override the action by pressing the acceleration pedal. I don't believe that is the solution to the problem and fear that if another car was following to close behind me that an accident could have happened. This car was purchased with cruise control but I cannot utilize it for fear of this braking problem.

The contact owns a 2022 Tesla Model 3. The contact stated while driving approximately 80 mph with the cruise control set at 80 mph. The contact stated that the vehicle independently braked and slowed to nearly a full stop. The contact stated that she pulled the vehicle off the highway. The contact stated no warning light was illuminated. The contact returned the vehicle to the highway and engaged the cruise control and set the control to 80 mph, the vehicle did not accelerate to the designated speed and the independent braking occurred again. The contact turned off the cruise control and continued her trip. The contact had taken the vehicle to a local dealer, where it was diagnosed and was advised that the manufacturer was aware of the failure but no remedy was yet available. The vehicle had not been repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 9,000.

Car has phantom stops on cruse control three times in six months.

While in cruise control the vehicle initiates braking rapidly for no reason. This happens at high speeds 55, 65 and 70 mph on clear roads. No vehicles in front of or coming from the other direction. There may be vehicles behind at times. It doesn’t happen all the time but happens enough to be a concern.

Trip to California and back from az. Had several instances of severe braking. If I did not press the accelerator immediately, the car would slow down under what seemed like nearly maximal braking. No reason was apparent for this behavior. Some braking instances were on long straight stretches of I-40 with no other cars visible. This issue was only occurring if I had the cruise control engaged. Under normal daily driving without cruise control this issue of emergency braking does not occur. Each time this happens, it is totally unexpected and is extremely disturbing. I have stopped using the cruise control function on the vehicle out of fear of it causing an accident.

Hello, I recently drove 600 miles and experienced numerous random, frightening and dangerous occurrences of "phantom braking" while in cruise control mode. The car suddenly slammed on the brakes (I could hear the tires screech) while the highway was almost always completely empty, and always completely devoid of any potential danger. In three occurrences, the car was confused by something physical (albeit posing no danger at all): it was confused a "divide highway" sign post at the beginning of a divided highway median, the distant back a truck, a least a quarter of a mile ahead, and an incoming truck a least a quarter of a mile ahead in a long curve. In all other occurrences -the vast majority of occurrences- whatever triggered "phantom braking" was nowhere to be seen (the highway in front of me was completely empty of any traffic or obstructions), and never materialized. My safety and the safety of drivers behind me (and potentially in other lanes in case of a pile-up) was compromised during every occurrences. I stopped using cruise control when a car or truck is behind me. I contacted Tesla service. They did an over the air check and said that there was nothing wrong with the system, that each occurrence provided data to improve the beta system (it would have been nice to be told when I purchase the car that my family and I were beta testers of an automotive safety product), and that Tesla is "working on a firmware update". Not very reassuring, and most importantly, no fixes at all to address this dangerous safety issue. Tesla service indicated that I do not need to bring my car in (since there is nothing wrong with the software and therefore no fix). There was no advance warning before occurrences of "phantom braking". Thank you.

When driving on a vacation and on a highway from tucson, az to laughton, nev we experienced what is being called phantom breaking traveling approximately 75 mph several times. Extremely lucky to have not been rear ended. It also has happened with the fsd beta late last year when I leased the software for a month. Can supply dates.

Driving on the freeway at night, cruise control was on and going 70 mph. There were no other cars around and the car started braking on me out of no where. My speed went from 70 mph down to almost 20 mph on the freeway. Luckily there was no one behind me otherwise it would have been a bad crash.

I have had several incidents of my car rapidly decelerating when in assisted driving mode and I am driving on the highway. I am driving at 65 and all of the sudden it decelerates, making it extremely dangerous. There are no apparent barriers or nearby objects causing this to happen. I am very concerned this will result in a significant accident. I have filed this claim previously without anything happening. Additionally, I had a problem with my rear warning signal not going off when I was in a parking garage, causing me to back into a car. I filed a claim with Tesla and never heard back from them.

While driving in cruise control, not autopilot, my car phantom braked. The road was clear, the weather was clear. I'm thankful there was not a car behind me. I was doing the speed limit at the time 70mph when the incident occurred. The date lised below is an approximate date. It has occurred several times. I drive 45 minutes to work mon-thurs and cruise control helps for the long drive.

Nearly every time I use the "traffic-aware cruise control" on my Tesla, I experience a phantom braking event. Nearly all the time it is when the road is clear, in the daytime. I use this feature infrequently because I cannot rely on it at all and I'm concerned it will cause someone to hit my from behind.

Just completed a 3 day cross country trip from palm desert CA to saint paul mn. On a long highway trip like this, we rely on 'cruise control' to maintain consistent highway speeds. Tesla provides adaptive cruise control as a feature of autopilot. On numerous occasions, the adaptive cruise control unexpectedly stopped, causing the vehicle to slow, or unexpectedly braked hard causing the vehicle to sharply reduce speed. Due to the frequency of Tesla autopilot phantom braking, I found that my foot needed to consistently hover over the accelerator pedal to counter the numerous instances of phantom braking. This was necessary to prevent a possibly inattentive driver behind the Tesla from driving into the rear of the Tesla or another vehicle driving behind the Tesla. This phantom braking occurred as many as 6 to 10 times per day over 3 days and approximately 2,000 miles. The adaptive cruise feature malfunctions under certain conditions and our vehicle is available for inspection upon request. Our safety and the safety of others was put at risk by unexpectedly slowing or braking hard while driving at posted highway speeds and putting our vehicle at risk of being rear ended, and perhaps the same for a vehicle behind our vehicle. The phantom braking issue has been well documented in press & social media and I find it difficult to believe that it has not been reproduced by an independent organization such as NHTSA. I believe that the manufacturer (Tesla) is aware of the phantom braking issue as it appears to be inherent to Tesla's approach to providing adaptive cruise control. When the phantom braking occurs, there are no warnings or messages prior to the unexpected braking. Most phantom braking instances occurred on approach to or on the crest of a hill. At least one instance occurred after cresting a hill and the roadway was in full view.

Vehicle will repeatably go incorrect speed limit while on autopilot or fsd(beta), internal mapping data has incorrect speed limits, sometimes 65 in a 30, other times 25 in an unmarked 55. Speed limit may change multiple times within a short distance making it hard to correct without slowing or speeding up this is on software 2022. 45. 12. ( fsd 11. 3. 3), has been a constant issue on previous versions, also affects regular auto pilot.

On a two lane road with no traffic approaching and no traffic behind us on us95 in the nv desert, the Model 3 slammed on the brakes and slowed from 60mph to 30 or less. This is with the adaptive cruise control engaged, not auto steering. This happens several times. There were several times when large semi trucks were approaching in the opposing lane and the Model 3 slammed on the brakes also when adaptive cruise control was engaged. When we reported this to Tesla they said they need the exact date and time of each incident, or they could not help us. These breaking incidents happened during a 12 hour trip between carson city and rancho cucamonga. This is an unbelievable safety hazard as if someone is following too closely and the car suddenly decide to apply the brakes. The person behind you is going to be caught off guard and crash into you. I cannot believe this is been going on for over a year as I have read several articles about the problem. There is no warning whatsoever when the car does this.

The car, on 6 occasions, rapidly decelerated while using the autopilot feature when no obstruction was present. This was on the freeway, on a sunny afternoon, and seemed to occur at random without regard to overpass shadows, hills, etc. This nearly caused a collision from a car following me on one of the occasions.

While using autopilot the car randomly decelerated from 75mph to almost 30mph in the highway (i75) super quickly. If a car has been behind it might have caused a crash.

Since taking ownership of vehicle in summer 2022, have experienced multiple incidents of vehicle emergency braking for no apparent reason while using cruise control. In a few instances when I have attempted to use cruise control again after initial phantom braking incident, there is a 2nd incident of emergency like braking for no apparent reason in the same trip. Have never attempted to reuse cruise control within same trip after experiencing issue twice in that one trip. When phantom braking occurs: - it is while using cruise control (with or without steering assist). - there is no audible or visual warning (not even from auto emergency braking system) before or during vehicle braking. - is a very strong braking force akin to an emergency maneuver. - there is no clear reason for why vehicle braked - no obstacles in road or slowing traffic. - level of traffic (light or moderate) does not seem to be a factor, but I don't use system in moderate to heavy traffic. - weather does not appear to be a factor - it can occur in perfect driving conditions (sunny, clear day). In most recent incident, was traveling at 78mph on highway with no traffic in front or behind vehicle for approx. A half mile in either direction. Without warning or reason, vehicle began to brake hard, slowing vehicle down to 62mph before I could disengage system (approx 1-2seconds). Unclear how low vehicle would brake to if cruise control wasn't disengaged. Cruise control feature feels extremely risky to the point that view as unusable in almost all driving situations (even if would be a good time to use cruise control).

While in the cruise control mode my car will periodically come to an abrupt slowdown. Often when I’m on the freeway and I am very concerned that one day I will be rear ended by the cars totally unexpected slow down. It has happened at least 30 times in my Tesla Model 3.

The "traffic aware" cruise control automatically slows the car when entering a portion of highway with a reduced speed limit. Sounds good in theory and Tesla says this is intentional and cannot be modified in settings. However, suddenly slowing down from 65 mph to 45 mph when all traffic persists at 65 mph could lead to rear end collisions or loss of control.

On my morning commute to work, while using adas equipment, vehicle swerved harshly to the right from the right lane in an attempt to take an exit off the highway even though I had not signaled an intention to take the exit. Then, while on a straight, clearly marked highway, vehicle “phantom braked” harshly 3x even though there were no obstructions or cause for hard braking. There were no other vehicles in front of me or debris/items in the road. This sudden braking has become more common and could pose a safety risk to other drivers or cause an accident if my vehicle were to stop unexpectedly. Windshield was also clear and there was no fog/rain/or other conditions that could impede adas camera operation.

Phantom braking while using autopilot caused quick and static loss of speed on the interstate, which could easily have resulted in an accident.

I was on I-15 in utah on 1/29/2023 appoximately 2:00. I was attempting to pass in the left lane so the cars behind were following quite closely. I entered into some snow flurries and the car hit the brakes. I barely avoided a 3 car pile up because of this behavior. It appears that this feature for emergency braking encountered a false positive which my family and I barely survived.

Cruise control thinks it detects a pending collision and abruptly brakes. Following cars almost rear ended us. This happens every time at exactly the same bridge overpasses on the NJ garden state parkway south.

This vehicle along with many Tesla vehicles has issues where it will randomly brake when in autopilot mode going from sometimes high speeds such as 75mph trying to force the car down to as little as 35mph in a very fast manner, causing an increasing concern for vehicle collisions. As well as the automatic wipers not functioning properly and operating too fast when there is no precipitation as well as too slow when there is precipitation causing a potential visibility issue.

I used autopilot on my Model 3 for the first and only time a few weeks ago, and had a terrifying experience with "phantom braking" that could have killed my entire family while going ~75mph on the I-5 near bakersfield, CA. The I-5 here is split with 2 lanes in each direction, and is straight with no bends. I was driving in the right northbound lane, with autopilot engaged (adaptive speed control only, no automatic lane-steering). My right foot was off both pedals and two hands were on the wheel. There were no other cars in sight except for a single car driving northbound behind me in the left lane. This car began to pass me on the left, and when its front bumper was aligned with the mid-point of my car (I could just barely see the front bumper through the corner of my eye), my Tesla suddenly automatically slammed on the brakes with absolutely no warning! I immediately clenched the wheel as hard as I could, and had to quickly respond to prevent the wheel from automatically veering to the left. While fighting the wheel to try to keep the vehicle straight, and my family hanging on for their lives, we screeched to a grinding halt at a 45 degree angle facing the left lane. We were extremely lucky to not hit the passing car and fortunately there were no vehicles behind us. I disengaged autopilot and quickly got out of there so we weren't vulnerable. I speculate that the camera on the left panel between the driver and rear door saw the passing car, and wrongly invoked automatic evasive braking and steering maneuvers in response to a falsely anticipated head-on collision. That's the only reasonable explanation I can come up with. I will not use autopilot again until "phantom braking" is eliminated. This is a known issue that I've since found mentioned all over the internet by other Tesla owners. This needs to be fixed hastily before people are killed! we're damn lucky I had both hands on the wheel, otherwise we'd likely be dead! note: same report has been sent to Tesla.

Drove a 2,000 mile road trip on exclusively divided highways, I-25, I-40, and us 287. Sixteen times (average once per 125 miles) the car braked hard when the adaptive cruise control was on, twice dropping from 75 mph to 45 mph. Any of these incidents could have caused an accident if someone was following closely and was not paying close attention. My notes suggested that the vision-based system braked for a billboard well off to the side of the road on a curve, reflective road mirages twice, a bride once, and for no reason I could identify the remaining times. Tesla asserts that the adaptive cruise control is "beta. " it's not clear to me that they intend to correct this terrible behavior. Sadly, the car deleted its video files of the incidents and I was not able to recover them.

Phantom braking caused by autopilot. Car slowed down quickly and could have potentially caused an accident.

Phantom braking on the interstate. Autopilot causes the car to slows down significantly and quickly, which could potentially result in an accident.

I was driving eastbound on I-8 from san diego, az towards yuma, az and making use of my Tesla Model 3's adaptive cruise control feature when my vehicle suddenly and without warning slammed on its breaks. No warning or error messages were displayed on my screen – it's as if the vehicle thought I was on a collision course even though I was not. I was in the left-most lane and the vehicle behind me was dangerously close to colliding with me, but I was luckily able to step on the accelerator pedal and regain enough speed to avoid an accident. Though there was no accident, this incident has severely under-minded my trust in the feature.

My car will randomly slam on the brakes when I’m driving on adaptive cruise control even when there is not a car/truck/anything in front of me. Seems consistent in description to what others have termed “phantom braking”.