2020 Tesla Model 3 FORWARD COLLISION AVOIDANCE

I was traveling on the 91 freeway headed west in corona, ca. I was in the fastrak lane approaching an overpass. I was using the cruise control option and going about 73 mph when out of nowhere my vehicle acted as if someone slammed on the brakes. We were moving with the flow of traffic and luckily I had my foot resting over the gas pedal so I immediately pushed down to override the system. The car behind us had to change lanes to avoid hitting us.

I was driving on highway 205 near Tracy CA. I was in the left lane approaching a left curve in the road. The right lane to me was occupied by a semi with "wide load" on the back. It was in its lane and just ahead of me. As we both approached the curve in the road, my car experienced a "phantom brake" episode thinking it was going to hit the truck. Again both our vehicles were in their respective land and the truck was not crossing over the line.

In moderate city traffic, the emergency braking system sounded and engaged prematurely and harshly. I was not using any automatic driving features and was driving “manually.” A vehicle in front of me stopped, and I intended to slow then stop in a reasonable fashion. I have 25 years’ driving experience, and am well-experienced to do this safely. The emergency braking system suddenly engaged at about 25 mph, grinding my car to a halt. The driver behind me was not expecting such a short stop, and rear-ended my vehicle. No one was injured in this crash. My seatbelt trigger deployed, which tripped the pyro fuse, rendering my car undriveable. I could not move my car off the roadway and caused traffic clogs. The repair bill was roughly $9000 for my vehicle. The weather was clear, the street was dry and the sun was near high noon.

Emergency braking kicks in at times when there's an oncoming vehicle in the opposite lane. It happens on straight roads in normal traffic when the oncoming vehicle is maintaining it's lane. The car will suddenly slam on the brakes when there's no chance of a collision. Afraid of getting rear ended, I avoid using the cruise control and "autopilot" due to this erratic behavior.

I read this morning that there have been complaints about the automatic emergency braking engaging when it shouldn't and I would like to add my car to the list. I've had my Tesla a little over two years and turned off the feature about a year ago because it would hit engage the emergency braking when there was no reason to. After a software update a month ago Tesla reactivated the feature without my permission and the only reason I knew it was activated is because the brakes slammed while I was on the freeway. The forward collision warning also activates often when there is no threat of collision of near by. The details below are an approximation of the last time the emergency braking engaged but this happened probably 4-5 other times during the year I had it activated.

During regular driving at highway speeds, and using Adaptive Cruise control and auto steer feature, The car would suddenly brake substantially for no reason. There was no object or anything that In the road. If there was a car traveling behind me closely a sever accident could have happened. This has happened on more than 10 occasions since owning the car in 2020 new from Manufacturer.

Phantom breaking on my car, just like everyone else. In autopilot on the highway my car will break pretty hard when there is nothing in front of it. Seems to occur when approaching bridges and large signs. If I drive on the highway every day, it will happen to some degree at least once a drive. At least once this nearly caused an accident (I was almost rear ended because my car braked for no reason)

The contact owns a 2020 Tesla Model 3. The contact stated while driving 45 MPH and turning left, the vehicle experienced “Phantom Braking). There was no warning light illuminated. The vehicle was not taken to be diagnosed or repaired. Neither the dealer nor the manufacturer had been notified of the failure. The approximate failure mileage was 12,000

In numerous instances since the vehicle was purchased in December 2019 and with all software versions to date, the vehicle has suddenly and with no warning or reason rapidly and forcefully applied the brakes while adaptive cruise control was set. This has happened on four lane interstates at speeds between 65 and 78mph and on two lane highways in both day and night. The "phantom braking" is worst on two lane highways and makes the use of cruise control at night on a two lane highway nearly impossible to use due to the frequency of occurrences. This braking has nearly caused accidents and has resulted in my wife's neck aching due to the unexpected and forceful application of the brakes.

On to different occasions while vehicle was in Enhanced Autopilot the car braked hard for no apparent reason. If another car had been close behind it might have hit me. Problem has not been confirmed by a service center or the dealer, nor has the vehicle been inspected by anyone. The described actions happened in a construction area on highway I-25, both northbound and southbound. Problem appears to occur at off ramps.

While driving down Interstate-5 my Tesla has been known to automatically brake from traffic safe speeds down to 40 immediately. It has happened multiple times. I have video to prove it as well. My video is too large at the moment but it does exist.

late November of 2021, sunny weather, dry pavement. I was driving with Auto pilot (auto aware cruise control) on a 2-lane highway in rural MN. No traffic, I came upon a shadow cast by trees across the highway and the car suddenly braked. Later that same day, I was driving on a 4-lane expressway in a rural area—again with CC on. I was approaching an overpass that cast a shadow onto the roadway and the car suddenly braked. In both cases the car did not come to a complete stop but significant reduction in speed. Luckily in both cases no one was following close behind me. I have no interest in FSD and don’t agree with it as our highway/roadway infrastructure is a long way off from being ready. However, cruise control should be solid and I am now wary of using it and am tense under same conditions—I can’t rely on it. Tesla (Elon Musk) made a bad directive to have this system rely on cameras only. This system should also have LiDAR or at least radar. I informed Tesla of this issue. They acknowledged receipt of the complaint but never offered what they would do about it. Phantom braking is a big issue and FSD ought to be outlawed until infrastructure, vehicles and drivers are ready for it. For the life of me, I don’t understand why anyone would want FSD. Anyway, the issue with my car is not with FSD. Thanks

I have had too many phantom braking incidents to count, it has happened hundreds of times since I bought the car. Most incidents were mild slowdowns (3-10 mph) on some two lane roads through interstate and but some were quite quite violent, 20 mph or more slowdowns in a second or two. For example, using only adaptive cruise control or with autopilot also engaged and no other vehicles nearby, the car suddenly slammed on the brakes before I was able to step on the pedal and stop the deceleration. If there had been a truck behind me following close, it would have rear ended me. This sort of instance happens regularly, at least once or twice a week. Mild slow downs, as noted above, happen a handful of times most every time I drive the car. It happens when roads are empty or full, and slow downs also occur even when lines in the road are clear, there is no traffic. It also can occur when I am cresting a hill or making a blind turn

The car braked from 65 mph to 35 mph with no obstructing traffic, the car has done similar things on many occasions however. On the occasion of the most recent occurrence, I noticed that the car indicated a change in the posted maximum speed for that location from 65 mph (normal highway speed) to 35 mph, at which time it began slowing to the erroneous 35 mph limit. There was no reason for the change in speed, as there was no posting, construction or traffic.

Vehicle was driving on concrete-divided highway around 70 MPH. An ambulance with flashing lights came around a bend on the OPPOSITE side of the highway from the vehicle. Vehicle began to unnecessarily slow upon detecting the flashing lights.

My car has experience phantom breaking issues since 1 month after purchasing in December 2019 when using autopilot. Each time phantom braking so far only happens during interstate driving. During the two year period, it has happened over 10 times. Fortunately, no vehicle was very close behind me when phantom braking occurs. Oddly, no forward collision warning occurred during the phantom braking.

I have experienced phantom breaking twice with my model 3. The first time was on the 101 freeway near Santa Clause Lane outside of Santa Barbara. There was no car in front of me or a hazard on the road but the vehicle made a sudden stop while I was traveling around 55MPH. The second occurrence happened on the 101 freeway near Santa Maria. Again, the vehicle made braked suddenly while traveling around 65MPH. The closest car in front of me was about 100 feet away. There was a car behind me but I was able to quickly hit the gas peddle to avoid an accident. I searched online at the time to see if anyone else had this issue but didn't have much luck. I'm thankful that I saw the Washington Post article.

Vehicle approached an upward slope which triggered a forward collision warning and (unsafe) emergency braking.

There is A LOT of phantom braking, not just on specific stretches of highway around Austin, but almost anywhere. There is a specific spot on US Highway 183 north in Austin where the speed is set at 65 and the Tesla M3 will rapidly brake without any warning. There is a danger of being rear ended. I manually disconnect the ADAS in anticipation. I shouldn’t have to. In general, phantom braking is dangerous and could be attributed to using vision only sensors?

I WAS DRIVING IN A TOLL ROAD TO THE LEFT OF THE FREEWAY LANE WHICH WAS BACKED UP. I WAS DRIVING APPROXIMATELY 70 MPH, HAD CRUISE CONTROL ACTIVATED ON A STRAIGHT STRETCH OF ROAD WHEN THE CAR SUDDENLY BRAKED REALLY HARD (REDUCED SPEED INSTANTLY TO ABOUT 55 MPH). THERE WAS AN SUV BEHIND ME DRIVING KIND OF CLOSE BUT THANKFULLY IT WAS PAYING ATTENTION AND HAD TO MAKE A HARD SWERVE OUT OF MY LANE TO AVOID A REAR END COLLISION