Adaptive Cruise Control Problems of Tesla Model S - part 2

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See all problems of the 2015 Tesla Model S 🔎.

Tesla has failed to provide the software updates to fix the recalls on my and all other mcu1 cars that have fsd paid for. This is because Tesla has not delivered sent fsd to these cars, and hopes owners will pay $2,000 to upgrade to mcu2. Tesla has lied that all cars with fsd paid for will be upgraded to the required hardware necessary to use fsd. This has now became a safety issue as recalls are not being addressed!! Tesla states vehicles should be running software version 2023. 44. 30 or later. . . We are stuck at 2022. 8. 10!.

See all problems of the 2017 Tesla Model S 🔎.

This complaint is about difficulties with the horn sensor on the steering yoke under emergency situations. After 14 months of driving the car, I have these safety issues: 1) the horn sensor is difficult to find in emergency situations. It is a single, small area located farthest away from the right-hand rest position and touching it requires a long stretch with the thumb. When turning, it is easy to lose the orientation of the yoke and nearly impossible to find the horn sensor. (see #5 in the attached image). 2) the horn sensor is near the cruise-control button ("right scroll button"). The cruise-control button is raised and I have accidentally engaged the cruise-control on multiple occasions when trying to reach for the horn sensor. I would lift off the accelerator, expecting to slow down, but imagine my panic when the car speeds-up due to the accidentally engaged cruise-control. (see #8 in the attached image). 3) the horn sensor does not work when wearing regular gloves. None of the steering yoke sensors with gloves. You have to wear special touch-senstive gloves. 4) the steering yoke airbag is not a horn button. All of my previous cars since 2000 had airbag horns. This is a hard habit to break. I urge the NHTSA to recall the steering yoke and make the airbag a physical horn button. This would alleviate the four safety issues above. Thank you.

See all problems of the 2023 Tesla Model S 🔎.

On the afternoon of February 2nd 2024, my car’s speed assist was set at 30mph, and I was traveling north on virginia avenue in indianapolis, indiana. At the end of that avenue where it joins delaware street, a red traffic light was detected and my vehicle stopped normally. However a unique anomaly occurred. The vehicle crept forward three times against the light. I was required to apply brake pressure to stop the car from moving forward illegally. This phenomenon has never occurred since I have owned the vehicle beginning in early 2019.

See all problems of the 2018 Tesla Model S 🔎.

The update that you required for auto steer has made the car undrivable. I get a written and audible warning immediately when I engage auto steer. Literally within 2 seconds. I always keep my hands on the wheel, lightly, while I drive on the highway. Anything short of a death grip on the wheel causes the warning to go off. However, the nag feature (after the changes you required) goes off constantly. Honestly, it's very distracting. If I look at the radio to change the channel, the warning goes off. You need to undo the changes you required. It makes auto steer less safe, not more.

See all problems of the 2022 Tesla Model S 🔎.

You guys have ruined auto-pilot and made it 10x more dangerous and will cause more accidents in this format. It needs to be reversed back to what it was. Now when looking at the screen to change the temperature or change a song, or looking at the mirror, it asks you to touch the wheel immediately and causes unnecessary stress and potential mistakes, I've already oversteered the wheel several times swerving after it warns me to touch the wheel because I'm trying to look at a mirror quickly to not have the alert come on. In addition, it has 3 marks against me, and will be suspended from using it soon. Never before have I even had a mark against me on the system. I believe your approach to fixing the situation is fundamentally flawed. People get into accidents with autopilot because of their negligence, not because of autopilot. That is on the end user who has insurance and a driving record. Do not punish all of those who are good drivers, you are making us worse drivers now with the new autopilot to save a few accidents from bad drivers, but it will now cause many more in this format. This is a terrible decision on the regulatory part, and a sign of over regulation.

See all problems of the 2016 Tesla Model S 🔎.

Driving 75mph on cruise control. Car sensed a vehicle in front of me (which there were no vehicles in sight) my Tesla started flashing the red car light and making the alert noise. My vehicle automatically slammed on the brakes dropping me to about 40mph instantly. My greatest fear continuing to drive this vehicle is if I use cruise control, and it senses a vehicle in front of me without their actually being a vehicle and slams on the brakes again myself or someone is going to get hurt. This has the potential to cause death or cause severe injury.

Setting: adaptive cruise control, 70 mph, no nearby traffic, no nearby bridges or overpasses, no visible obstructions, straight highway, daytime, clear skies. Incidents (multiple): unexpected, inexplicable braking. During one of the incidents, there was a splotch of some sort on the road (perhaps spilled paint). During all other incidents, there was nothing obvious which could explain a misperceived need to brake.

See all problems of the 2020 Tesla Model S 🔎.

Car without obstacle will without warning execute a hard slowdown/stop. We have received the latest ota update and have disabled auto steering and fsd. These unplanned stops are incredibly dangerous when driving in traffic. They charged a substantial fee to enable fsd and we are afraid to use it which sucks but the fact that basic cruise control is so dangerous is criminal.

Driving on divided highway at night, the car slowed dramatically at each exit from the highway.

See all problems of the 2021 Tesla Model S 🔎.

Nhtsa recall 23v-838; tc2023-657 has made my car less safe to drive. The constant nagging and nannying requires me to take attention off the road. Please stop.

Tesla, in multiple cars that I own, has repeatedly changed user-preferences of user-selections, without warning, or update notes, for a variety of functions. This seems to be a consequence of sloppy software coding and seems to coincide with new software releases. In recent months, Tesla has attempted to inform people of new software update functionality with ‘release notes’. However, these notes seldom, if ever, explain that a user’s preference is getting discarded (though could be restored -- if the user were aware). One example, is the operation of ‘traffic aware cruise control’ was changed from a double click of a scroll wheel to a single click. No release nor or manual page was called out to indicate the change — at least prior to this driver’s noticing and diagnosing the problem. Nor was any pop-up message explaining the new, and surprising functionality of a ‘double-click’ — which was to momentary activate and deactivate tacc. Other functions that get changed, without notice: 1) operation of automatic windshield wipers is deactivated (and set to ‘manual) — from the user-preference of ‘auto’; 2) auto park chimes sounds are turned off — despite a user-preference setting them to 'on'. These changes to the ui, necessitating guesswork using the large glass screen, prove to be highly distracting to a driver in the midst of driving. In addition, these undocumented and un-communicated changes lead the consumer to contact Tesla and even setup ranger service to make a repair for what ends up being a sloppy manual — to the detriment of Tesla’s effectiveness of their service department. If Tesla cannot make the user interface operate in a coherent manner day-to-day, there is no hope that any alleged full self driving will avoid reverting to some unknown configuration on unknown time scales. Perhaps Tesla should repurpose engineers that make video games for the car to the purpose of regression testing to avoid surprises like these.

Error message popped on my screen steering might require extra force and shortly after that I lost power steering, cruise control, automatic emergency, braking, forward collision warning land departure etc. Contacted Tesla service to acquire about recalls since I remember reading about it.

Phantom breaking. I picked up my new Model S on sept 7th. While on the thruway on autopilot, the car will suddenly brake. I am not near to anyone. This is a hazard.

From Aug 23 to 28, 2023, we traveled in our 2020 Tesla Model S long range plus vehicle from santa fe, nm to san diego, CA and back, for a total distance of approximate 2100 miles. We drove primarily interstates (I-25, I-10, I-8, I-5) where speed limits ranged from 55 to 75. We experienced numerous instances of what is known to Tesla owners as sudden, severe "phantom braking" [hereinafter pb] while the cruise control was activated (not autopilot, nor fsd, just cruise control). In all instances, no cars or other objects were visible within 1 mile ahead of our vehicle, and in all instances, these "phantom braking" incidents happened on absolutely flat, straight, smooth road surfaces, at all times of day, morning, noon, and night. This car has had pb problems since the day was purchased; in fact on that day, there were at least two sudden pb incidents while I drove home in the new car! at numerous times since, I've reported these problems to Tesla service---to no avail. The problem is widely known among Tesla owners, and to my knowledge no owner has been able to get Tesla to do anything. On this most recent long-distance trip, our pb incidents happened typically at the posted speed limit of 75mph in all-clear situations---nobody else anywhere remotely nearby. The car would be operating smoothly when all of a sudden the brakes would engage and the vehicle would rapidly decelerate, throwing forward anything not fastened down inside the car. Because of the history of this problem, I never activate cruise control whenever any vehicle is near the rear of the car, as I can never tell if my car will "phantom brake" at that moment, causing a possible accident. I consider this problem very dangerous. I have owned this car since 2020, and Tesla has refused to do anything to fix it, always coming up with one or other stalling technique or excuse. I consider this an extreme safety flaw of this car and hope NHTSA can help to force Tesla to fix it once and for all.

Vehicle braked without warning with cruise control engaged. Luckily there were no other vehicles near us when this phantom braking occurred.

Driving on freeway speed 80mph with no other cars around the car slammed on brakes while on cruise control. It was able to accelerate and the next time I put the cruise control on a few minutes later it slammed on brakes again. Car clean no warning that it was trying to avoid an unseen object. Drove rest of the way without cruise control on and no problems.

The adaptive cruise control has had phantom braking issues from day 1 of ownership (and through every software release from Tesla as I always update when a new one is available). Most of the time it's not possible to identify exactly what triggers the event. However, on July 27th 2023 I drove from phoenix to sacramento via i10, i210, i5 and had 6 phantom braking events. 5 were directly correlated with passing a semi with me in the #1 lane and the semi in #2. I had the car in adaptive cruise control mode, but I maintained steering control. The car approached the semis normally, but as soon as the car was completely alongside the truck it began braking aggressively. More than just allowing regenerative braking to slow the car, the brakes were applied. This did not happen with every passed truck, maybe 1 in 10. One of the 6 phantom events could not be correlated with any clearly identifiable cause. There is no warning when the car begins decelerating so it is a surprise to the driver. Further it is an extreme hazard to following vehicles who will be forced to react. I have not directly reported my specific events to Tesla. For one thing they have no reasonable way to do this (online access, phone access. The number they give to report problems hits an automated phone tree where there is no option for reporting issues). Clearly Tesla is well aware of their phantom braking issues. I'm reporting this to you now in order to apply more pressure to Tesla to finally resolve this. In general, considering some of the other phantom braking episode beyond this one specific trip, I have occasionally noticed the car displays a yellow signal light on the driver's display but only while phantom braking has already begun. I believe this is case where the car believed it saw a caution sign or signal light in it's cameras and was reacting to that. There were no signal lights, but the sun was either coming in that direction or reflected off of other vehicles or buildings.

Adaptive cruise control. The vehicle in this mode suddenly brakes for no apparent reason which under the right circumstances could cause a collision. Tesla service center looked at it but could not reproduce. This has happened many times on various dates not just once. Sometimes it happens more than once on a trip, sometimes it does not happen. This happens with no warning. Tesla knows about this problem for years but has failed to correct.

Going north on new york state highway I-87, there is a bridge which results in Tesla autopilot erroring every time and every day and results in a "full self driving error" which causes telsa car to brake along with putting on hazard lights. Issue was reported to Tesla, but they responded that it happens to everyone under this bridge so there is nothing they can do right now. The fault occurs on a busy highway at 55mph zone, and happens 100% of time going under the bridge, every single day. The bridge is wide enough that shadow results in error and car loses all understanding of what lane it is in. Today at the Tesla service center, the employees all reported the same issue as well and that there is no idea if it will be fixed. Happens only when using fsd/ap driving support; manual driving is unaffected.

1. Previously listed recall has been erroneously removed from recall history for my VIN. . Read more...

At least 6 times on two different trips, while driving with adaptive cruise control engaged, the car randomly and aggressively applied the breaks. It was so aggressive that if there had been a car behind us, they would definitely have rear ended us going 60+ miles per hour. It was difficult to hold the car in the lane when the breaks were applied so aggressively. We did some research and found that there were over 700 comments on this problem and it was being labeled as "fantom breaking". The breaking is very aggressive and very unsafe. The representatives at the dealership simply acknowledged the problem and said that Tesla will continue to try to correct it with a software download.

On 10jul2023, approximately 1:00pm, while traveling southbound on hwy 69, south of toll road 49 in lindale, texas, while driving in the right lane and speed set at 75mph, when all of a sudden the car activates the right blinker and - without slowing - pulls into a fairly short, dedicated right turn lane that turns into a business. At the end of the turn lane is a drainage culvert. The route of travel did not include a turn and the car should have been continuing straight down the highway. The car enters the turn lane and never slows from 75mph. I immediately hit the turn signal button to use the camera to get a look to my left to see if a car is there and also look over my left shoulder when there was no response (no camera) to activating the left turn signal. This all occurs as my hand is grabbing the yoke and my foot moving to the brake. I see the blue "path indicating line" wavering left and right and then lock into a right turn into the business parking lot at the end of this dedicated turn lane. Again, there is a culvert at the end of the turn lane also. As soon as I see over my shoulder that the lane to my left is clear the car attempts to make a 90 degree right turn at 75mph. At that exact moment I am able to yank the yoke left and tap the brake to disengage the full self driving beta as the car is starting the right hand turn. The rear end of the car breaks loose and slides as I get the yoke steered into the right hand lane of the highway. I allow the speed to bleed off to get the rear tires behind me and continue on. My dog has been thrown around the back of the car, my wife banged her head on the passenger side window. This whole event occurred in mere seconds.

The car will rapidly break and decelerate with no obstacle in front. The care does this frequently but randomly. The car will slow by 10 -20 mps in a mater of a second or 2. The deceleration is had enough to throw unsuspecting passengers forward into locked seatbelts. It will do this with cars following behind. I wil ldo this between 3-12 or more times over a 100 mile drive. I have asked Tesla to fix this but they have said that this is a limitation of their program and that it can't be fixed. I think it is only a mater of time before the car is ended or put into a skid due to unexpected breaking.

Phantom braking continues to be a problem. I've never had it happen in the city or in traffic. I also owned a 2015 Tesla ms that never had a phantom braking problem. For me pb has always occurred on a freeway with no traffic around at all. No overpass involved. Suddenly tacc thinks it must apply the brakes. Surely at least Tesla could log this kind of event and fix it. It's aggravating for me as a driver and terrifies passengers.

When using traffic-aware cruise control at normal highway speed, on regular, clear days — including when there is no glare — the system often brakes abruptly, despite the absence of obstacles or even shadows that could be misinterpreted as obstacles. This is extremely dangerous, and it has happened (1) when there are no other vehicles on the road, and (2) when the only other vehicle on the road is directly behind me. The latter scenario is particularly dangerous. Notably, the only cruise control available is traffic-aware cruise control. There is no ‘basic’ cruise control, which means there is no way to avoid this scary phantom braking other than by not using cruise control at all. I have tried disabling all adas automatic braking features, yet this phenomenon still occurs. This has been occurring with all software up to date. I am scared that my car is going to kill me.

While driving on the highway using cruise control, the car unexpectedly and rapidly slowed down. This has happened several (5-10) times, day and night, generally in low traffic areas (mostly with no traffic anywhere nearby). I have experienced this issue throughout my ownership of the car. In the most recent case, the car seemed to think that the speed limit had dropped to 35mph, perhaps seeing a sign from a nearby road. Other times, I could perceive no cause, so unknown. The date below is the most recent time, where the car thought the speed limit dropped.

When using adaptive cruise control vehicle randomly applies brakes while driving at highway speeds, for no reason. Sometimes braking is severe, sometimes moderate, sometimes light. In the instances of severe or moderate braking, a real danger exists that following vehicle will be unable to stop and will collide. This happens relatively frequently, particularly on some highways. Sometimes multiple incidents occur on one drive.

The car was on enhanced auto pilot and was moving at about 50 mph, the traffic in front of me slowed down. The car failed to give an alert, it failed to slow down and stop. I applied the breaks, but by then the car crashed into the pick-up truck in front of me. The car came to a complete stop after the crash and the computer system in the car completely shut down. The car had to be towed to the garage. My safety and the safety of the driver in front of me were at risk due to malfunction of the enhanced auto pilot system we immediately filed a service ticket with Tesla and upon repeated requests we were told that car could not be inspected and the breaks or auto pilot system could not be tested as the car was not drivable. Police and car insurance company were notified. Tesla was able to provide us with a edr there were no warning signs or messages prior to the malfunction.

3 separate times the right pillar camera and 2 times for all cameras: the car's computer lost contact with the cameras and could not reconnect. In 2023, Tesla changed from radar to camera sensing technology. All driving functions relating to car positioning and cruise/speed control were lost at those times. Twice the car was under cruise control so the car interpreted this as 0 mph and initiated emergency braking from 75 mph on an interstate highway. I was able to avoid the following cars hitting me only by instantly accelerating back to posted speed. Tesla has been very difficult to convince that this is a problem. They say that remote diagnosis is inconclusive. Since they go for "at home" service first, 3 separate service times were cancelled by them, and they will not allow a service appointment at their shop for further diagnosis. Warnings came up on the instrument display, but only for 10 or 15 seconds, in words too small to read. Since I am trying to maintain control of the vehicle, I cannot stare at the screen to try and memorize, or find my phone to try and take a picture. This vehicle does not allow the owner to look at the error/trouble logs, so exact times and dates are elusive. Tesla refuses to start investigating until the exact warning, date, and times are advised. Dates are known, approximate times and driving conditions are known but aren't good enough.

5 times on a cross country trip, I experienced the phenomenon of "phantom braking" . As I was driving with adaptive cruise on, doing approximately the speed limit, the brakes were automatically applied and the car started to rapidly slow down. Luckily there was no one behind me so I was not rear ended ! I immediately took the car to the local Tesla service center thinking there was a problem with the car, but they told me this is a know issue with no solution at present. One tech told me he has a Tesla himself and has experienced the same issue ! he told me that he just punches the accelerator and keeps on driving !.

1) horn is hazardous. Small 1/4" area hard to locate and activate. Impossible to locate when steering. 2) turn indicators is hazardous. Hard to locate. Impossible to locate when steering. 3) front parking sensors do not work, 4) rear parking sensors do not work, 5) active lane departure warning does not work, 6) forward collision mitigation does not work, 7) rear collision warning does not work, 8) pedestrian detection system deos not work, 9) driver attention alert does not work.

On March 17, 2023 at approximately 4:00 pm mt, I was traveling at approximately 75 mph with adaptive cruise control and auto pilot engaged when the car suddenly applied brakes with no obstruction ahead or behind or on the side. The car quickly slowed down to approximately 55 mph, released the brakes and began to accelerate back to the speed limit of 75 mph.

Maryland state police report 7450004v says: on March 14, 2023, mark bova was driving his 2018 Tesla Model S in maryland on what is known in the dmv as the important highway, "the beltway". According to police report msp 74500047, "unit 1 was traveling southbound in lane 1 on I-495. The autopilot feature on the Tesla was engaged. The autopilot malfunctioned causing the Tesla to lose control and leave the highway on the left side. The driver was transported by ambulance to the hospital . . . . " "equipment failure, ran off road left".

We had the adaptive cruise control, turned on and the car braked violently on I 90 in washington state heading east. The brakes slammed on so hard that the tires screeched. We were in the fast lane and it was fortunate that no one was directly behind us or there would’ve been a serious accident. It happened again about 5 miles later, but not as violently.