2021 TESLA MODEL Y Forward Collision Avoidance Adaptive Cruise Control Problems

I am experiencing phantom braking when using both the features listed below * Adaptive Cruise Control * Tesla Auto-Pilot I have experienced this safety issue when 1. I would be crusing on the road using either of these featuers. All of a sudden, and without warning, the car has applied brakes, even when there's no object / human in the same lane or attempting to come to the lane. 2. I'm cruising in the middle lane of a 3 lane highway, with no vehicles around. This has happened even when vehicles are following behind my car. 3. In both daylight and at night.

While driving my Tesla Model Y using cruise control, the vehicle will continuously brake suddenly for unknown reasons. In several instances, I was worried that the car following me would either hit my car or be forced to take other actions, possibly causing an accident. The system is dangerous and useless. When I contacted Tesla regarding my concern, they said something about the software program evolving…no fix available. I have had my Tesla Model Y in their service center three times and have had numerous phone conversations with them and their customer service department regarding this issue. They said they simply cannot do anything about it. Again, the cruise control system is extremely dangerous. Please require Tesla to resolve this problem immediately. Thank you.

On two occasion, our brand new Tesla model Y lurched forward from a complete stop. The first time, on 2021/10/09 at 4:36pm I was at a car wash and trying to put the car in neutral. Fiddling with the gear selector, the car jumped forward without me touching the pedals. I hit the breaks and neither the car or anyone else was injured. The second time, on 2021/10/25 at 8:10 am, my wife was dropping off the kids at school. At full stop the car lurched forward again without her touching the pedals or the speed controller. The car hit the car in front of it 3 times with force. The car as well as the two other cars in front of it got seriously damaged. My two year old son was on board, there was many middle schoolers around but thankfully no one was injured. Incidents were reported to...

I was driving on Interstate 80 in NJ this morning. I was in the middle of three lanes. In the lane to the right of me were two tractor trailers. Adaptive cruise control was engaged. For no apparent reason my vehicle suddenly braked hard, startling me and making me wonder what I might have missed in my surroundings. There was no hazard...this was frightening and a major flaw in the system that I have seen referred to as "phantom braking." It has happened to me a couple of times before but never on such a crowded roadway...I could have been rear ended. This component of the vehicle has not been subjected to a service call...the car has 5,000 miles. There was no warning.

Tesla's autopilot / adaptive cruise control / emergency braking is defective. On multiple occurrences I have had incidents where the vehicle's adaptive cruise control and automatic emergency braking systems have activated inappropriately. In one occurrence I was driving on I-17 through Phoenix in the middle lane. I was beginning to pass a pickup truck pulling a trailer (my front bumper was just behind the trailer) when the car detected this as an imminent collision and applied significant braking. I had to use the accelerator to disable the emergency braking, and this triggered a number of cars behind me having to brake as well. In a second occurrence I was driving on SR-74 westbound in phoenix between I-17 and Lake Pleasant Parkway. This is a two lane road in many sections, and at one point I had a semi truck and trailer coming towards me in the opposite lane and my...

Have a recurring issue with phantom braking, without apparent issue, causing the car to suddenly brake (hard) without warning. (60 mph to 30 mph). This happens when using adaptive cruise control. Dealer has been contacted and their response is that this is perfectly normal, it happens to everyone, and that the car and systems are in beta. They indicate all that mechanical components are in working order and my software is up to date. Over time this may be fixed. Meanwhile, I’m concerned about being rear ended caused by my car's sudden phantom braking. This issue is prevalent in other Teslas and reports on the internet are numerous.

When traveling down a clear road with no obstructions, the Tesla will unexpectedly put the brakes on, sometimes mildly and sometimes severely when the Speed Sensitive Cruise Control OR the Autopilot is engaged. This is not Tesla full self driving, just standard cruise. This is a known problem that Tesla is aware of and has not addressed. The problem has become much more pronounced in recent software updates. This happens frequently and sometimes causes an unsafe condition causing me to not want to use this feature while driving at all.

Every time I drive on a two lane undivided highway with traffic aware cruise control or AutoPilot engaged, the car will slam on its brakes when a large vehicle is passing in the oncoming lane, even if the passing vehicle is safely passing. Phantom braking with vision only.

Adaptive Cruise Control breaks hard for no apparent reason. If there had been any cars trailing close behind I could easily be rear-ended. Happens at least once every time I turn on cruise control. On a recent longer highway trip of about 90 miles it happened three times. One time on that trip it happened while passing under a bridge, did it pick up the lower speed from the bridge above? The other times it seemed to happen for no reason. All these times our hearts dropped (2 passengers in car). Note that I do not have full self driving, so I’m talking about adaptive cruise control being the problem.

While using autopilot (adaptive cruise control) and driving on two lane highways the car will suddenly apply braking. The braking is abrupt and aggressive. The concern is being rear ended even for vehicles following at a safe distance. The abrupt braking happens randomly and more consistently when there is an oncoming car, especially around turns or hills.

The autopilot randomly applies the brakes. Sometimes it applies the brakes on a 2 lane highway when a truck or large vehicle approaches in the oncoming lane. Other times nothing is in the lane and it slams on the brakes. Other times the forward collision warning starts making noises and nothing is in front of me. I took the vehicle in for service, but of course the Tesla tech could not duplicate. Although the invoice says "autopilot will improve as firmware is released."

While driving on a two lane highway at 70mph with adaptive cruise control on, every time a semi would approach the car, the car would brake really hard with no notice. Not one car caused this issue. It was only large semis trucks or trailers.

Car is frequently emergency braking when autopilot is enaged and large trucks or semi tractor trailers merge from the right. Car will also unnecessarily and prematurely emergency brake when cars are climbing a hill. The unexpected braking has nearly caused several accidents and we have discontinued use.

When driving with Cruise Control engaged, the car repeatedly brakes VERY HARD. Sometimes the braking is when there is a car in the opposing lane and is approaching but not over the line. Sometimes the sudden hard braking occurs for no apparent reason. But on a two lane highway this occurs VERY regularly. It occurs several times an hour. This is a serious problem because if there is a car behind me the sudden hard braking may cause that car to crash into me from behind. You can submit a bug report to Tesla by pushing the right hand steering wheel button, saying "Bug Report" and then describing the report verbally while driving. This will include all sorts of driving data being sent to Tesla. I have done this dozens and dozens of times. Each time I get a message on the screen thanking me for sending in the bug...

When placed in cruise control (which is called TACC: traffic aware cruise control), and driving on 2 lanes road, the car frequently (more than 10 times over 20 miles) slams on the brakes when incoming large vehicles on the other lane. This is generating dangerous situation with following cars being surprised for sudden (and unwarranted) braking occurs. I have a dash cam video of one such incidents

Vehicle will brake hard when approaching oncoming large trucks. This may result in a rear end collision of the following vehicle and possible chain reaction incident. The vehicle has not been inspected and is two months old. This is an ongoing issue and common with this make and model.

When driving on cruise control the car will suddenly and randomly decelerate and/or break for no reason. I have had this happen on empty two lane highways and on 4 lane highways with cars around me. It's incredibly stress full and if cars are following too close very dangerous.

Driving I5N near Delmar with auto pilot in daylight, car suddenly braked while there was no obstacle, or any other car in front of it. Luckily no one rear-ended me. Max cruise speed was set to 75 MPH, and speed suddenly dropped below 45 MPH. The maximum cruise speed I set to also automatically changed to 45 MPH as well.

When on Cruise Control or using Autopilot mode, there are frequent phantom breaking issues. On a long trip, we experienced phantom breaking consistently on the Highway both at night and during the day. These phantom breaking issues would sometime be significant and immediately drop speeds 10 miles an hour creating a danger of surprising people behind us. On a 2 lane country road, the issues are GREATLY compounded. The breaking would constantly trigger with oncoming traffic in the other lane and break VERY hard with the auto break alarm sounding. At night on a country road, it occurs with almost EVERY oncoming car. It is amazing to me that this made it through quality control because it is easily reproducible. The auto braking feature should just be turned off for country roads if this can't be fixed. At one point, I was right next to an older Model 3 on...

On September 26, on our first long distance trip with our just delivered (9/17/2021) Tesla Model Y, during daylight nice weather driving with Adaptive Cruise Control switched “On”, on at least 6 occasions (strait roads, freeway and non-freeway driving), the car suddenly, without any reason, violently slammed on the brakes. These events are hair raising for me and passengers, let alone for a driver behind me. If he/she does not pay attention at that very moment, the result could even be disastrous. I would never have expected such a serious safety issue with a Tesla. Suffice to say that this is absolutely unacceptable to me. When checking out the web, many people reported similar issues with their Model Y vehicle. I had the car checked-out at the Tesla Lynnwood, WA, Service Center on September 30, 2021, and when picking-up the car I was informed that no anomalies had been found....

Repeated automatic breaking in the assisted driving mode when the road is clear and there are no other drivers or obstacles. The other day my speed was dropped from 55 to 45 mph. It was fortunate no one was behind me.

I have been having inconsistent behavior from the autopilot system. The vehicle has hit the breaks hard when no obstacle was present. I have not had this problem verified by a dealer/service center. It happens seemingly randomly. There was no warning before the breaking started.

The latest version of Autopilot has very serious phantom braking issues. It will brake hard frequently for no apparent reason. Other times it will slow down, but not braking hard, also for no apparent reason. It will also beep at me frequently when cars are approaching in the opposite lane, again for no apparent reason. In short, the latest version of AP is all but unusable and more importantly is not safe for us b/c of the phantom braking issue. Luckily no car has been close behind me when the hard braking has occurred but it certainly could be and could cause a serious accident.

Driving across the country in Model Y. Passed semi in left lane, and when merging back into right hand lane vehicle applied full brakes dropping the vehicle speed from 80mph to 60mph, right in front of semi. I was forced to take over and accelerate to avoid serious rear end collision. It wasn’t just the one time, vehicle continued to perform aggressive braking actions many times. Autopilot was unusable for majority of trip. Tesla needs to make autopilot able to be disabled, and standard cruise control possible. Tesla vision is not safe, and is a major liability. It’s very clear Tesla vision is an attempt to remove radar to get around supply chain issues, at the cost of consumer safety.

I have 13987 miles on the car. 2 times in 1 month on a 2 way highway that has lane markers on the left side of the road. While using cruise control once and the second time was in auto drive mode going about 60. Hard braking with no notice, good thing no one was right behind me. I took control with no issue but this is really a safety issue. I see others reporting it maybe cars coming toward you. But in one case I was alone no on coming cars. Like I said the road has safety markers that are about 3 ft high.

Using basic Autopilot (adaptive cruise control without auto-steer), the car randomly slams on the brakes putting me at risk of being rear-ended by any vehicles following me.

Vehicle braked suddenly on the exit lane of a highway around noon time, when there was no car ahead of me. There was a large truck passing on the adjacent lane. My car gave a red color warning of imminent collision and braked hard. Fortunately, I avoided having an accident with cars following me by pressing on the gas peddle and moving ahead. Tesla service remotely reviewed and determined that at that time emergency brakes were applied because the car detected an object. Tesla said it could have been a reflection, the sun, or any number of things that could have triggered the false detection causing the vehicle to brake.

Very often when "autopilot" or "traffic aware cruise control" are activated on two lane roads (county or state highways) and there is oncoming traffic the system will alarm and brake hard as though the car is about to have a head on collision. This is a safety hazard because if anyone is following me when this happens it would be very easy to get rear-ended. This problem has been happening since I purchased the car and has been reported to Tesla 4 times along with videos of the incidents and they refuse to fix it.

This is our second Tesla, so I am familiar with the function of adaptive cruise control and autopilot. Vehicle frequently initiates hard braking events without warning or cause on the highway. I have contacted Tesla service, and they are stating that the car functions normally, and that this is normal behavior. If this is normal behavior, it is definitely unsafe. I have almost been rear ended several times.

While using Tesla Autopilot, I’m receiving significant “phantom breaking” events where the vehicle, for no apparent reason, applies the breaks, quickly and unexpectedly decelerating at highway speeds.

The car will hard brakes all the time on autopilot. I've had it occur going up slight hills, the sun being out, rounding bends, etc.

Our 2021 Model Y features the new vision based cruise control system, both traffic aware cruise control and autopilot utilize this camera only system. At the time of ordering we were under the impression we were getting a much safer and mature radar based system. Upon accepting delivery at the end of May we have accumulated 9,000 miles on the car and have a had horrible experiences with the traffic aware cruise control slamming on the brakes for no apparent reason with nothing ahead or passing cars. Behavior can be 5-10mph slowdowns or in some cases FULL brake pressure which puts us in danger of being rear ended. Multiple times we have been close to rear ended. In addition the system can also produce audible beeps when cars pass however no warning or message is displayed. I want to stress this behavior is a daily occurrence day or night. We...

While driving using cruise control the vehicle will occasionally brake suddenly for unknown reasons. In one instance I was worried that the car following me would either hit my car or be forced to take other action possibly causing an accident. When I contacted Tesla regarding my concern they said something about the software program evolving…no fix available. The cruise control system is Dangerous. There is NO warning, you are traveling down the highway, all seems fine, and then for no apparent reason the car applies the brakes so hard that everyone in the vehicle is startled and vehicle behind you sounds their horn!

Since purchasing the car less than a month ago, there have been over 100 phantom braking events while using cruise control. The vehicle will suddenly SLAM on the brakes with no apparent reason, even when there are semi trucks following closely behind. The only way I have avoided rear end accidents is by emergency presssing the accelerator. It is incredibly dangerous.

Vehicle applies brakes suddenly while cruise control is active at highway speeds, for no discernible reason. This happens extremely often and has almost caused the person following to rear end me on multiple occasions

While driving on well marked highways, the adaptive cruise control would initiate rapid and unsafe braking while using the vehicles “AutoPilot”. The braking is equivalent to a user putting full pressure on a brake pedal, losing 10-20mph by the time I am able to intervene, even if I’m ready to take over. Such rapid deceleration leaves me vulnerable to a rear collision from following drivers There is no warning, and no alarms from the vehicle. The manufacturer has no specific response, other than advising a system reset. The system reset does not solve the problem.

I was driving in cruise control at the posted speed limit of 80mph. The conditions were dry and sunny. Without warning the car braked hard and decelerated from 80mph to 69mph in less than a second. The braking was so violent, my head snapped forward and I almost lost control of the car. This 'phantom' braking occurred other times but it was less sever. The unpredictable nature of the adaptive cruise control and emergency braking has prompted me to disable these so-called safety features.

My car brakes for no apparent reason when cruis control is active of autopilot. Sometime it is about sometimes it is gradual. In one instance on the interstate at 75mph it took me down to 50 befor I could hit the accelerator petal to make it continue. This is a hazard for drivers around me. I have been in contact with tesla multiple time but they have done nothing to fix it. Lane keep assist is also an issue. When the lane keep assist is turned off in the settings it will still preform the lane keeping. This caught me off guard and caused damage to the vehicle.

The contact owns a 2021 Tesla Model Y. The contact stated while driving at various speeds, the vehicle would slow down without warning while using the smart cruise control feature. The contact stated no warning light was illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 3,000

This 2021 Tesla Model Y struck and killed a motorist who was outside of his disabled vehicle with the hazard flashers functioning on the motorist's vehicle. I represent the wife of the deceased. You are already investigating this accident as part of a larger investigation. See article below. The wife of the deceased, [XXX] , was on the phone with him when he was struck and killed and is a witness who you would likely want to interview as part of your investigation. I also am in possession of the disabled vehicle in an unaltered state and available for your Investigators to inspect. Please contact me on my cell phone at [XXX] . [XXX] Sincerely, [XXX] , Esq. [XXX] , P.C. New York, New York INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

What component or system failed or malfunctioned, and is it available for inspection upon request? Adaptive cruise control is unusable on small 2 lane hwy. How was your safety or the safety of others put at risk? Car would brake hard by itself without any obstacle for miles in front of the car. It also brakes randomly following another car or if it detects traffic on the opposite lane. Car would also brake randomly if there was another vehicle behind which almost caused an accident. Has the problem been reproduced or confirmed by a dealer or independent service center? Problem was acknowledge by Tesla customer support via the issue reporting app. They downloaded my trip data. However I was told that it wasn't a hardware issue but a software issue. They will issue a fix however it has been 4 months with no fix insight. Has the vehicle or component...

Phantom braking is a known problem with the Tesla Model Y. My adaptive cruise control has malfunctioned 2 times in 1 week. It's a very dangerous situation. Apply panic braking when the road has very little traffic and no curves. No warning signs at all. I reported the 2 incidents to Tesla. They essentially said that there was nothing they could do.

I WAS TRYING TO PARK THE TESLA MODEL Y AFTER FINISHING A 15-20 MINUTE TEST DRIVE ON FREEWAYS AND STREETS. I PARKED IN A PARKING LOT AT THE DEALERSHIP IN BETWEEN TWO OTHER CARS. IN ORDER TO PARK THE CAR, I WAS BRAKING TO BRING IT TO A COMPLETE STOP. AFTER THE CAR WAS POSITIONED INTO THE PARKING LOT AND JUST BEFORE STOPPING, IT ACCELERATED ALL OF A SUDDEN, SWERVED LEFT AND HIT A PLANTER IN FRONT AND ANOTHER PLANTER ON THE LEFT BEFORE COMING TO A STOP. I GOT OUT OF THE CAR AND MY FAMILY TOO AND REPORTED TO THE DEALERSHIP. I DID NOT LEAVE UNTIL TESLA FIRE AND TESLA SECURITY FOLKS CAME IN AND TOOK STOCK OF THE SITUATION. THEY FOUND THE LEFT FRONT WHEEL LOCKED IN POSITION AND HAD TO MANUALLY UNLOCK IT USING TOOLS. 3 OTHER FAMILY MEMBERS WERE IN THE CAR (INCLUDING KIDS). TESLA...

ADAPTIVE CRUISE CONTROL DID NOT DETECT A STATIONARY OBJECT ON THE HIGHWAY WHILE ON "AUTOPILOT" THE CAR WAS TRAVELING STRAIGHT WITHIN THE LANES OF THE HIGHWAY WITH NO OTHER OBSTRUCTIONS OR OBSTACLES AND CRASHED RIGHT INTO THE OBJECT RESULTING IN DAMAGE TO THE FRONT BUMPER. VIDEOS AND IMAGES AVAILABLE

I WOULD LIKE NHTSA TO FORCE AUTOMAKERS TO STOP USING NAMES FOR THEIR DRIVER ASSISTANCE FEATURES THAT OVERSTATE THE CAPABILITIES OF THOSE FEATURES. A DRIVER ASSISTANCE FEATURE SHOULD BE ALLOWED TO BE SOLD AS AUTOPILOT IF IT CANNOT PILOT THE VEHICLE AUTOMATICALLY. A DRIVER ASSISTANCE FEATURE SHOULD NOT BE ALLOWED TO BE SOLD AS "FULL SELF-DRIVING" IF IT CANNOT DRIVE ITSELF FULLY. IT IS DECEPTIVE, DANGEROUS, AND WRONG. "DRIVER ASSISTANCE STANDARD" AND "DRIVER ASSISTANCE PLUS" ARE FAIR, SAFE, AND APPROPRIATE TERMS THAT DO NOT IMMEDIATELY TEMPT ABUSE. PLEASE IMMEDIATELY ACT IN THE INTEREST OF CONSUMER AND PUBLIC SAFETY TO STOP THESE MISLEADING AND UNSAFE PRACTICE BY AUTOMAKERS. I SUBMIT THIS ON BEHALF OF THE 4/16/2021 HARRIS COUNTY, TX CRASH VICTIMS, THOSE WHO HAVE COME BEFORE, AND THOSE WHO WILL CONTINUE TO DIE BELIEVING THEY ARE IN A SELF-DRIVING CAR.

1.SCREEN FROZE. WHEN REBOOTED WHILE DRIVING BY PRESSING BOTH SCROLL BUTTONS, THE SCREEN WENT BLACK AND COULD NOT ACCESS ANY INFORMATION OR FUNCTIONS ON THE SCREEN. PUT THE CAR INTO PARK TO FIX THE ISSUE BUT THEN COULD NOT CHANGE TO DRIVE FOR A MINUTE BECAUSE THE GEAR CHANGE LEVER WOULDN'T RESPOND. 2. THE CAR DOES NOT STAY IN ITS LANE WHEN USING AUTOPILOT DURING THE DAYTIME ON A WELL MARKED FREEWAY WITH CLEAR LANE MARKINGS. THE CAR KEPT ON CROSSING LANE MARKERS.

VEHICLE MADE A SUDDEN RIGHT TURN WHEN IT WAS ON AUTO PILOT AND BECAUSE OF THAT THERE ARE MINOR COSMETIC DAMAGES TO WHEEL AND TIRE. MANUFACTURER DOESN'T ACCEPT ANY FAULT WHEN IT WAS HUMANLY IMPOSSIBLE TO CONTROL THE VEHICLE BECAUSE OF SUDDEN TURN.