2018 Tesla Model 3 FORWARD COLLISION AVOIDANCE

While vehicle was engaged in autopilot and adaptive cruise control on the freeway in traffic it has intermittently accelerated toward the vehicle in front requiring the driver to abruptly manually press on brakes to disengage the adaptive cruise control in order to avoid colliding into the vehicle in front. It has also suddenly braked on the freeway when there was no object in front requiring the vehicles behind to abruptly slow in order to avoid collision to rear of the vehicle. This has happened multiple times over years. I did report it once to the manufacturer who could not explain or reproduce it. There were not warning messages or lights to demonstrate failure of the system.

My 2018 Tesla Model 3 failed to engage its automatic emergency braking system - resulting in a collision due to the vehicle in front of me suddenly braking.

Multiple episodes of phantom breaking with the car on cruise control on the highway. The car was not on autopilot during the episodes. The car abruptly drops from highway speed with full braking until you can override it with the accelerator. This will cause accidents of someone is close behind you. As a result, I do not use cruise control.

When driving on undivided highways, the car will phantom / panic brake due to oncoming cars approaching in the opposite lane. At times, the car phantom brakes for no apparent reason at all as there are no cars nearby. At night, it gets much worse, with the car phantom/panic braking at nearly every oncoming car. My 2018 Model 3 is equipped with radar-assisted Autopilot, but newer Tesla vehicles don't have the radar hardware at all and instead rely on a vision-only system that uses the cameras alone. When I opted into Tesla's Full Self Driving beta, the new software disabled my car's radar and my car became a "vision-only" vehicle, like newer Tesla vehicles. At this point, phantom / panic braking became significantly worse. When radar was used, the braking was rare but still unsettling. With vision-only Autopilot, it's nearly unusable. Even with basic cruise control, phantom / panic brakes happen with the same frequency as if you're using Autopilot. I basically can't use any cruise control or autopilot when driving on undivided highways. On interstates and in-city highways, phantom / panic braking does still happen, but it's less frequent.

Twice the car in Autopilot braked for no apparent reason. First time on an Interstate traveling at 65 mph in the center lane. As I was about to pass a truck located in the right lane that was going very slowly with its blinkers on, the Tesla abruptly decelerated from 65 mph to about 40 mph. Thankfully there were no cars behind me because I would have been rear ended. The second incident happened on a road inside my community that winds through a golf course. I put the car on Autopilot at 30 mph speed limit because there is radar hiding every. day. The car suddenly braked for no apparent reason . My hypothesis is there was a sign close to the road warning that golf carts cross here. There were no golf carts or people nearby and perhaps the sign was seen by the Autopilot as an object to stop the car.

Driving while on cruise control, the car will phantom brake. That is, it will apply the brakes: - when a vehicle is way way out there in my lane and not a potential problem. - when two vehicle are close on each left and right side lanes, but not in my lane. For instance, when on 3 lane road with all lanes going the same way, vehicles on my left and right sides out in front of me but not in front of me, the car will suddenly apply the brakes. These are just the most common instances. I get lots on incidents of the vehicle unnecessarily applying the brakes when on cruise control.

1) What component or system failed or malfunctioned, and is it available for inspection upon request? answers: the automatic emergency braking system was incorrectly activated on several occasions, yes 2) How was your safety or the safety of others put at risk? answer: my Tesla braked unexpectedly in the driveway of my home 3) Has the problem been reproduced or confirmed by a dealer or independent service center? answer: no 4) Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? answer: no 5) Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? answer: no

While on adaptive cruise control, my car breaks on highway for no reason. Looks like it happens at certain parts of highways. I noticed this at at least 3 highways and it breaks unexpectedly causing the vehicles behind me to almost crash into me.

The car has repeatedly (but not often) initiated emergency braking while traveling on a freeway. It has done this in literally the same place on California highway 85 several times, and occasionally on other freeways. It has always been a clear, sunny day, and it seems to occur when the vehicle travels from deep shade into bright sun (i.e. as when going under an overpass). The road was straight with no vehicle directly ahead for several hundred feet. I have reported this to Tesla via the app. and through the service departments. I have included date and time as well as location on some occasions. The only comment I have received was that the logs showed no problems, and no further action was taken by Tesla. When the severe braking occurred, an alarm went off in the car (a beeping sound). At least once a following car nearly collided with me. I was probably traveling in the range of 68-73 MPH. I do not have dates or mileage information, but Tesla may based on the occurrences I reported.

The software on the car is and has always been updated to the latest standard. Driving on east and westbound on US 60 near Phoenix and Mesa AZ the car will emergency brake from time to time. This condition has continued for years off and on and is still happening as of this week. Generally speaking it appears to be caused by shadows from the overpasses and is far more prevalent at low sun angles that create significant shadows leading up to those overpasses.. I don't recall it happening after dark. On several occasions I have submitted "bug" reports via Tesla's online automated system.

Tesla FSD beta/ autopilot has frequent phantom braking. Sometimes for oncoming traffic in opposing lane or because of parked cars or even a shadow or nothing at all. It’s dangerous especially when it slams on the brakes so hard items in car will fly to the front. Could cause rear end collision or startle driver and cause them to react poorly. I have been doing bug reports and sending emails to Tesla FSD beta team since 11/2021 after each new update and it has never been resolved even remotely to an acceptable safe feeling product for use.

The contact owns a 2018 Tesla Model 3. The contact stated while driving at 60 MPH with the cruise control activated, the vehicle inadvertently decelerated to 40 MPH. There was no warning light illuminated. The accelerator pedal was depressed and the vehicle responded and accelerated as needed. The contact stated that the failure was intermittent. The vehicle was taken to the local dealer however, the mechanic was unable to determine the cause of the failure. The dealer also informed the contact that the failure was a known issue and that the manufacturer had been made aware of the issue. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 14,484.

On multiple occasions while my car was in Autopilot mode on highways and at highway speeds, I have experienced rapid braking (phantom braking) when there was no apparent reason for such. All of the phantom braking events have occurred on sunny days, usually around mid-day. Most often, the events have occurred when approaching a bridge or overpass. My supposition is that the system is mistaking dark shadows under bridges as obstacles that need to be avoided. As a result of the frequency of these events, I no longer use the system on sunny days.

While driving to work, in 2021, I had experienced sudden deceleration and disengagement of the autopilot. It happened a few times. I have ignored it thinking it to be an electronic glitch. I did not know how to report to Tesla. But since I was sharing my data with them, I thought they will pick up some issue and alert me if there is really something malfunctioning. But I just found out that other customers has had similar issues and that I could report it to NHTSA, therefore I am reporting it albeit delayed.

On several occasions, with Autopilot engaged my 2018 Tesla Model 3 has strongly applied the brakes while traveling at highway speeds, despite the fact that there were no obstacles up ahead. This has occurred throughout my ownership of the vehicle, and in each instance, it has been extremely unsettling. It required me taking manual control of the vehicle in order to return to highway speed. I do believe that on these occasions my safety and that of my passengers and other motorists has been at risk. It is worth noting that each time this has occurred there has been an overpass up ahead. I have hypothesized that the Autopilot interprets either the overpass or the shadow cast by the overpass as an obstruction. In my experience there is an apparent correlation here that is worth exploring. I was motived to report my experience after reading today's NY Times article (2/17/2022) about "phantom braking". The article indicates that you are "focusing on Tesla Model 3 compact sedans and Model Y hatchbacks that were made in 2021 and 2022 and sold in the United States." Based upon my experience, you may need to you broaden your inquiry to include other model years.

The contact owns a 2018 Tesla Model 3. The contact stated that while driving at highway speeds with the vehicle in auto pilot mode, the vehicle would erroneously reduce speed and on occasions nearly come to a complete stop. On one occasion while driving approximately 70 MPH, the speed was suddenly reduced to 10 MPH. The cause of the failure was not determined. The manufacturer was notified of the failure but no assistance was offered. The local dealer was not contacted. The failure mileage was 5,000.

Driving today on I45 between Dallas and Houston on beta autopilot I was traveling at the speed limit of 75 with much room to the next car, maybe 1/2 mile the car suddenly did a panic breaking for no reason. I took control by the time it was at about 30 mph and got back up.to speed but I'm positive the car behind me was alarmed. No damage or incident but it was quite alarming.

Over the last several weeks there have been numerous phantom braking events when on autopilot. These seemingly happen out of nowhere, various conditions, and for no apparent reason. Some of the braking events are very light and others are harder. I estimate in the last 4-6 weeks I have 2-3 per week while commuting. One almost caused the person behind me to rear end me. I am on software version 2021.32.22 on a 2018 Model 3

On enhanced auto pilot highway speeds, the vehicle suddenly breaks, also known as phantom breaking. Extremely dangerous! Tesla service notified, their response “software is in beta, with a recent software update addressing the matter”. 35,000 of driver miles experienced, the auto pilot is extremely glitchy. When the algorithm is to complicated the vehicle well transfer the liability back to the operator with little warning. Their vehicle safety claims are highly overstated. Software updates cannot keep up with outdated hardware.

WHILE DRIVING MAJOR FEDERAL FREEWAYS (I65 & I85) BETWEEN HOUSTON AND N.C., THE CAR WHILE ON AUTOPILOT AND TRAVELING AT FREEWAY SPEED (70 MPH) WOULD EMERGENCY BRAKE WHEN APPROACHING SOME (6-7 TIMES) OVERPASSES APPARENTLY THINKING THE OVERPASS WAS CROSSING TRAFFIC OR A FORWARD OBSTRUCTION. THIS ALSO OCCURRED (3-4 TIMES) WHEN IT WAS SIMPLY A RISE IN THE FREEWAY AHEAD. THE BRAKING ONLY LASTED FOR MAXIMUM 1-2 SECONDS, BUT SINCE THE VEHICLES BEHIND ME WOULD NOT BE EXPECTING ME TO BRAKE, I CONSIDER THIS A SERIOUS SAFETY ISSUE.