2018 TESLA MODEL 3 Forward Collision Avoidance Automatic Emergency Braking Problems

Phantom braking that causes the vehicle to suddenly apply the brakes for no reason. Issue occurs at least once each time I use the Autopilot. Occurs on interstates as well as highways. In my 6 hour drive today it happened 5 times. Each time the vehicle decreases in speed by 15-30mph. This is extremely dangerous for vehicles following behind and for the passengers who are suddenly jolted.

Constant phantom breaking while using cruise control, autopilot or FSD. A reoccurring problem that happens more and more often.

My Tesla 3 suddenly braked while driving on the road from about 40 mph to 10 mph. There was nothing obstructing my car from the front or sides. It was a scary experience. My neck was jolted forward and the seatbelt pressed very tightly against my chest. I immediately scheduled for service with Tesla. I then got a call from them and was told I should be okay to drive my car until my scheduled appointment a week from now! How is this not an emergency?!

1) Ongoing issue with car braking suddenly when no other cars are ahead of it. 2) When in auto-pilot, the car brakes late when carrying speed. This has happened when the car is less than 1 car length behind the car ahead of it forcing me to disengage and brake hard to avoid a collision. In one incident, I had to swerve the car and drive onto shoulder of the highway to avoid a collision. 3) On 7-16 the the undercarriage cover detached from car while driving on highway.

Since I purchased this car new in Sept 2018, the car has had a "front Left safety restraint system fault". It has been fixed over 3 times and it is going for the 4th time now. The car is going out of warranty this year and I am afraid I will be stuck with the bill if it happens again. Even though all the fixes have been free so far, it is an ongoing problem Also, the known phantom breaking, just add to the numbers. it is more than common. I almost see it coming when going under overpasses because of the shadow. The computer must see it as an object. I have inquired about the lane departure warning and they keep saying it is just a software issue. If it is activated at any point during the drive, then it says that "lane departure warning" is not long available...

Ghost braking hard and want refunded for full self driving because it’s not there

Autopilot failed and crashed into another car while changing lane didn't detect coming in left lane and tried to changed and crashed into it. It put everyone in the car in life threatening risk

Every time we have it on autopilot on the tollway, we experience phantom braking at the same location regardless if we are going south or north. It is dangerous if there is a car behind us.

The optional "Self Driving Option" we purchased for an additional $8,000 when we purchased this vehicle has never worked properly. The adaptive cruise control will brake for no reason, often multiple times per mile. It seems to be affected by shadows on the road and the vehicle mistakes these shadows for obstacles. The "Self Driving Option" will abruptly jerk the steering wheel in the direction of oncoming traffic and violently disengage. My wife and I find it to be unusable. Multiple service requests to Tesla have resulted in no actions.

The recent full self driving update that was received approximately one week ago has resulted numerous, substantial, and dangerous Self driving errors. The Vehicle struggles greatly to understand lanes and has on multiple occasions suddenly and without warning jerked the wheel to completely change lanes and then re-jerking the wheel to change back into the Original Lane. There has also been a shocking increase in phantom breaking while driving at highway speeds which is unsafe because other nearby drivers may slam on the brakes. The behavior of the vehicle has a times been so erratic that I could’ve gotten a ticket from an officer. Finally, the vehicle increasingly does not understand lanes and has several times veered into a left turn lane despite having a follow vehicle and despite being on a navigational Straight path, subsequently the vehicle then suddenly jerks the wheel back into the correct lane. This all...

On June 1, 2022, we left on a roadtrip to CA from UT. Our Model 3 kept having incidents of "phantom braking," in which the Traffic-Aware Cruise Control and Autopilot systems would suddenly, inexplicably cause the car to slam on the brakes, and sometimes even flash a "red" steering wheel and an alarm with a warning that there was an object ahead —when there was NOT! This happened at least a dozen times en route on Highway 95 in Nevada, and continued to happen throughout our roadtrip on other highways until we returned home one week later on June 8, 2022. I have experienced this problem several times over the past year, and numerous other owners have already submitted similar complaints to NHTSA. Indeed, the TACC and AP behaviors are now significantly WORSE than when we first took delivery of the car over 4 years ago in April 2018. It...

I was driving on a one way street when the car suddenly stopped. I was not at an or close to an intersection. There was a pedestrian waiting on the side of the road, standing between cars. He was not in my way. He was not even close to the vehicle. The car sounded audible warning and came to a complete stop. I believe this was the reason the vehicle stopped. This is the 2nd time since my 3 year ownership that this has happened. I provided Tesla with time stamps of the event during my service visit. They told me this is normal function of the vehicle. Just reporting this in case there is a more serious underlying issue that warrants additional investigation.

Our model 3 was purchased with Tesla’s “full self driving (FSD)” software installed in 2018. Throughout our entire ownership period, whenever FSD is active, there are specific locations known to us - mostly at certain points on freeways - where the car will “phantom brake,” in other words suddenly decelerate the vehicle very rapidly and require *immediate* driver intervention. For instance, there is a freeway interchange ramp that passes under a bridge and doglegs to the left. The car will always phantom brake about 200 feet before it reaches the bridge. This has been happening for years, and we’ve reported this defect and this specific location to Tesla many times. There are other locations known to us as consistent phantom brake triggers, but there are of course times where this occurs when we are not expecting it as well, and that’s when it’s most dangerous. We believe it may have...

I was using Enhanced Autopilot on Tesla Model 3. It breaks automatically in middle of road for no reason even when there is no object in front of it. Its a life threatening situation because the vehicle behind my car will not have enough breaking distance and time at high speeds. It happens almost every month and specially under the reflection of bridges. I complained to service center and employees just ask exact time when it occurred and if exact time is not provided than Tesla employees does not do anything to resolve the issue. Looks like Tesla is putting many lives in danger.

I received access to Tesla’s Full Self-Driving system in late 2021. In the lead-up to that access, Tesla used a series of driver scoring metrics to select which users would get access first. Consistently, my metrics for forward collision warnings would show as alarmingly high, despite never coming within remote striking distance of another vehicle. On more than one occasion, a vehicle passing in other lane or turning left but in the other lane tripped the warning. At the time this registered as a red flag but more a bug of the evaluation system than the car’s recognition software. As time with the FSD suite has gone on, and subsequently with every new update, the phantom braking problem a number of users have described has plagued my experiences. Numerous times I’ve been driving with FSD engaged on two lane roads with no cars, shadows, animals or distractions of any kind...

When driving on local roads and the interstate the card suddenly brakes for no reason when using auto pilot or full self driving. Sometimes it seems to be triggered by shadows from trees or other objects on the road and other times for no reason at all. I have been going 45 mph and the car suddenly braked to 30mph. I have been on the open interstate doing 70 mph when the car will suddenly and violently brake when there is a car on your bumper and this is very dangerous. If you dont keep your foot over the gas while driving and force the car to speed up it will cause an accident bc it will brake until the car is stopped probably. Somone needs to look into tesla and the phantom braking on auto pilot and full self driving. i have owned this car for almost 4 years...

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.

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...

The automatic emergency braking system activated when there was no collision imminent. (7:13am, 5/22/22) Neither cruise control nor autopilot was engaged at the time of incident. I was nearly hit from behind by a driver who did not expect me to stop as there was no hazard or other vehicle. Tesla inspected the vehicle and found no fault and claimed that I needed driver education. Also on a subsequent interstate trip with cruise control engaged, the automatic emergency braking system activated unnecessarily. It appears to be related to shadows on the road or pavement changes.

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...

Phantom braking, i.e. apparent engagement of brakes on car for no apparent reason during routine driving

I saw the reports on all the auto breaking issues with tesla, and i wanted to report for over a year my car does this ALL the time when auto pilot is engaged. I can remember hundreds of times where there is nothing around and all of a sudden the car auto breaks and its hard breaking as though im slamming on the breaks.

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.

I intermittently get an on-screen message “automatic emergency braking is disabled.” Adaptive cruise control and auto-steering are disabled and I am unable to engage either one. Randomly the problem will resolve itself with no intervention from me - usually a day or two later. I have taken the car to Tesla service twice and they are unable to resolve the issue. On the last visit the service technician said that it is a firmware issue.

Autopilot hard breaks whip lash randomly beeps saying take over when going through an intersection or next to a semi. Phantom breaking

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.

Sudden Unintended Acceleration: While pulling forward onto our driveway (with incline) at a very slow speed, the car suddenly accelerated and brake was not working. Automatic emergency braking also failed.

My Model 3 regularly brakes at highway speeds for no reason it does this in daylight but more frequently at night also - it appears more common in the rain - where reflections off the wet pavement seems to appear as solid objects to the cruise control i have stopped using the cruise control now - it is frightening to have the car suddenly slam on the brakes at highway speeds

My car is equipped with forward-facing radar, but ever since Tesla turned it off in favor of "Tesla Vision" my Autopilot/TACC experience has been greatly worsened. The car suddenly (and very unsettlingly) slams on the brakes on the highway or city traffic (I have FSD Beta) for anything from shadows, to hills/inclines, to curves, or minor harmless debris (shopping bags) in the road. This has not yet caused an accident but has almost come close. Other issues: - FSD Beta, when engaged, forces the computer to have control over the high-beams and windshield wipers. The car obsessively flashes the high beams whenever possible, including on well-lit city streets. On multiple occasions this has triggered road rage in surrounding drivers because they think I'm flashing my brights at them for no reason. There is no reason to engage the brights in a well-lit urban environment. - Forward Collision Warning has become...

regularly experience phantom breaking and unwarranted early collision warnings

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...

"PHANTOM BRAKING" when cruise control is on, usually when on the freeway. Sometimes it occurs next to other vehicles, sometimes there are no cars around. On a 600 mile trip it will often occur at least once and most of the time 2-3 times. If it was slippery, the sudden braking could cause loss of traction. If someone was too close behind me they could rear-end me. No one has inspected the issue. Has been occurring since I've owned the car. No warnings.

On several occasions while driving with autopilot on the car has suddenly and inexplicably braked HARD while at highway speed. Each time there was nothing in the road, no car, no obstruction, no anything, but it was as if the car saw something that wasn't there and jammed on the brakes. I quickly took back over and returned to highway speed. Luckily we were not in heavy traffic or I would have been concerned about being rear-ended by another vehicle. I don't do a lot of road trips with the car and have used autopilot less as a result, but I would guess it has happened 4-6 times since I have owned the vehicle. I just thought it was a glitch that they would work out but just saw reports of others still experiencing this issue so thought I should report it so you were aware of the breadth of...

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.

While using Autopilot adaptive cruise control at speeds of 50-70 mph, the car suddenly applies the brakes even though there is no car or other hazard anywhere near the car. This phantom braking has been happening since I bought the car in 2018. I imagine it's a software problem. I read recently that NHTSA is investigating a similar problem on 2021 and 2022 Tesla Model 3s, so wanted to let you know that this problem is also affecting my 2018 model. Also I read that there's speculation that the problem was as a result of a software update over the past year, but in my vehicle the phantom braking has occurred since 2018. The problem most recently happened last week.

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.

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.

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.

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)...

As others have reported, please add my 2018 Model 3 to the list of reports of the vehicle having constant phantom breaking issues that Telsa needs to address. I'm glad you are conducting this investigation. Most times phantom breaking occurs I submit a "Bug Report" using the voice button in the car that sends car logs directly to Tesla so they will have records of these phantom breaking issues at the exact time and location my car experienced it. While it is random it also is very predicable at certain spots on highways I drive in the Bay Area. Namely 680 South in the HOV lane right before the Mission Blvd. exit. At least 90% of the time even I'm the only car in that stretch of road the car breaks hard for no reason. It is occurs so often in that section that I typically disconnect the Advanced Cruise...

My 2018 Tesla model 3 experiences “PHANTOM BRAKING” specifically and repeatedly traveling eastbound on the Loop 202 approaching 32nd street in Phoenix AZ. I have reported this issue to Tesla with no resolution.

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.

Car constantly phantom braking seemingly because of oncoming traffic safely in their own lane.

When driving on autopilot on highways phantom breaking occurs for no reason. There are no warnings, the car just slams on the brakes. Elon Musk has state they were removing radars from cars to eliminate this issue and disabling it in cars with that hardware, but since my car have gone to all vision it is much worse. While following vehicles should always follow at a safe distance to prevent collisions, the reality is most drivers follow too closely and this could very easily result in a rear end collision. It could also trigger road rage from following drivers assuming the driver is doing a brake check on them. This has occurred numerous times over various software versions, but its much worse with the pure vision version of autopilot. Current software is 2021.44.30.5

While using Tesla autopilot on surface streets, the car will randomly brake. Additionally, it frequently thinks that green lights are red and will stop the car at an intersection which can cause an accident as other cars will not be stopping.

When I use auto pilot on freeways, the car will suddenly brake, when there are no vehicles or obstructions in front of me. The sudden reduction in speed is jarring, as I fear getting rear-ended. This "phantom breaking" has happened on numerous occasions, to the point that I do not use auto pilot when I have other passengers in the car.

Many times when I am driving using the adaptive speed control the vehicle will suddenly brake very hard, slamming on the brake, scaring the driver and all passengers in the car. When this happens, there were no other vehicles near our vehicle at the time. If another car was behind mine at this time,I feel that it would surely have caused an accident. I have documented these occurrences each time and brought to the attention of Tesla Service department.

When using autopilot on the freeway there are multiple incidents where the brakes are aggressively applied for no apparent reason

I drive twice a week from Washington DC to Charlottesville, VA, a distance of 117 miles each way. 35 miles are on an interstate and 82 miles are on a divided 4-lane state road. Since I restarted this commute in September 2021 after Covid shutdowns and summer break, I have experienced recurring, frequent problems with the car's vehicle warning system, adaptive cruise control, and forward collision notification system. When I drive on the interstate (where there is currently a great deal of construction), the adaptive cruise control keeps automatically adjusting my speed when there is no speed limit change. So I might be traveling at 65 mph when my speed is suddenly lowered to 30 mph. There are no warnings, either visual or audio. The speed just changes. This is incredibly dangerous and requires me to be hyper-vigilant to avoid a rear end collision, or to turn off the cruise...

Car randomly brakes very hard when using driver assistance systems. This has happened on wide open roads on clear days, multiple times.