2018 TESLA MODEL 3 Forward Collision Avoidance Automatic Emergency Braking Problems

Description of the Defect: While driving with Full Self-Driving (FSD) engaged, the vehicle's primary computer shuts down and reboots, causing a sudden loss of all safety features, including Blind Spot Monitoring, Lane Departure Warning, Forward Collision Warning, and the driving visualization. The cameras go black while the vehicle is in motion. The Trigger: The failure is triggered by high electrical load. If the Cabin Heater (HVAC) and Seat Heaters are active while FSD is fully computing, the 12V power supply to the computer drops below critical voltage, causing a "Turbo A" processor lockup and system crash. Evidence of Defect: Service Center diagnostics confirmed the specific error code APS_w169_TurboA_SCS_LKUP (Computer Crash) occurred at the exact same timestamp as VCLEFT_a302_blowerGeneralFault (HVAC Blower Failure). This proves a common-mode voltage drop affecting multiple critical systems simultaneously. Manufacturer Response: The manufacturer (Tesla) acknowledged the logs but refused to inspect the wiring harness or ground connections,...

I believe my car should be included in the recall for trunk harness recall. My alert and issue is the rear camera being off due to rear trunk ruining the wiring harness that has affected many cars. This is already a recall but I believe my car missed being involved.

Too fast and too close to stop sign to red light or other cars while in Full Self Drive (supervised).I had to disable it to avoid risks of accident.Even using Chilly Mode.

Car performed automatic emergency braking on driver's resumption of forward travel from a full stop when traffic light went from red to green. No oncoming vehicles or obstacles were present. Weather was clear and sunny and road was dry.

Two incidents while testing the most recent version of Tesla's "Full Self-Driving": 1. While driving at less than 25mph in a residential neighborhood, using the "Full Self-Driving" mode, the car was entirely unable to detect either heavy steel plates in the road (being used to cover road work) or significant potholes in the area near the plates. 2. While driving on H1 (a federal "interstate" highway) on Oahu, at approximately 55mph, using the Tesla's "Full Self-Driving", the car inexplicably slammed on the brakes. There was absolutely nothing visibly in front of the car for at least 200 yards. The car behind me had to swerve to avoid rear-ending my vehicle.

I was driving (~42 m/h) my Model 3 Tesla on a freeway and the traffic in front of me suddenly slowed down. The driver in front of me (she was a new driver with a new car) braked hard and came to a complete stop even though the traffic in front of her was moving. I ended up colliding with her as a result. I would have expected the Tesla Forward collision system or the Automatic Emergency Braking system to have activated and prevented this crash. Further, it seems Tesla brakes behave differently when it is fully charged as the engine braking does not engage. In fact the car seems to accelerate instead. If the Tesla Forward collision system and the AEB do not work and prevent such accidents, what is the point of having these systems?

The MCU in my 2018 Tesla Model 3 failed after a software update, rendering several key safety features inoperable, including the car’s cameras and Autopilot functions. The vehicle currently has 16,600 miles and had previously received an MCU replacement in 2022. This most recent failure occurred during a firmware update, which got stuck at 50%. The Tesla Service Center confirmed that the MCU needs replacement again, but I was not given clear diagnostic logs or evidence of a pre-existing hardware issue. Due to this failure, the rearview camera, blind spot monitoring, and Autopilot features are no longer operational, which directly impacts the safety of driving the vehicle. These features are critical for safe operation and are standard in ensuring driver assistance, situational awareness, and accident avoidance. The issue has been inspected by the Tesla Service Center, and they proposed replacing the MCU at a significant cost, though no prior warning...

On 9/6/2024 I was driving on I-10 E going about 70 mph in the left lane. I had engaged the cruise control but not the Autopilot because I’ve had dangerous experiences with the Autopilot phantom breaking and misinterpreting cracks in the road as lane markers and dangerously changing lanes. So even though Inoaid thousands of dollars for Autopilot I never use it. So I was driving approaching a big rig in the lane to the left of mine and the sun was low in the sky casting a shadow on the road. The car thought the shadow was a car and slammed on the breaks and almost came to a complete stop until I pressed on the breaks to release the cruise control. We are very lucky the car behind us didn’t hit us. The car behind us almost hit us and my passenger and I both sprained our necks....

I recently took my car in for a recall for the trunk wiring harness and have never had any major issues since I purchased it in 2018. Since replacing the recalled harness, I’m starting to receive several alerts from my driver assistance system (emergency brakes, camera failure). I called a service tech who mentioned there’s either a failed camera or a failed wiring harness. Looking online, I was shocked to see hundreds of other owners with a 2018 model 3 also experiencing the same issue in 2024 (assuming after they replaced the recently recalled harness). I strongly believe that these two issues are related and that the camera should be replaced alongside the wiring harness. Several people on this forum have been quoted hundreds or thousands from tesla to replace the harness (including myself) and are taking matters into their own hands by replacing with after market parts. This is...

While driving on the highway with FSD on, the car severely amalfunctioned with sudden deceleration at 4 separate ocassions. At 68 mph when changing lanes, the car suddenly decelerated. There were several cars behind us and it could have been a major multi car collision. At all 4 ocassions, I immediately took over control on steering and acceleration, thus avoiding any accident. This problem has not been reproduced or confirmed by a dealer or independent service center yet. My vehicle or component(s) have also not been inspected by the manufacturer, police, insurance representatives or others yet. Additionally, there were no warning lamps, messages or other symptoms of the problem prior to the failure.

I may have figured out the common link between Tesla Autopilot crashes. Distracted operators have the accelerator pressed while the TACC is engaged, thinking (for many reasons) that the vehicle will stop if there are any obstacles in front of them. However, when the accelerator is being pressed, the vehicle will not stop. It will happily run into a wall. One second before impact, the forward collision warning turns on, followed by the ABS and the slamming of the brakes, but by then it's too late for a distracted driver. The raw Tesla "Vehicle Data" on Column D, shows "Accelerator Pedal Position (%)." I strongly encourage you to take a look at the data for the autopilot crashes and review this column to see how many had the accelerator pressed until 1 second before the accident, even if the autopilot was engaged. The 4/25/24 update to Investigation EA22002 states that...

Following an over-the-air software update, all audio in the vehicle stops working. This includes entertainment services, but more importantly turn signal indicator "clicks", forward collision warnings, parking assist chimes, shift confirmation and warning chimes, and various ADAS notification sounds. In some instances, the problem corrected itself within 24 hours. In another instance, it persisted for nearly a week before I discovered that unplugging the USB cable for the dashcam fixed the problem. The dashcam hard drive has been installed for over 4 years, per the instructions in the user manual, without problems until early 2024. There were no error notifications or anything else to indicate that there was a problem with the car's safety systems, or what the cause of the problem was, except for the lack of audio. I chatted with Tesla service about the issue. After discovering and sharing that disconnecting the USB drive fixed the issue, they...

I don’t feel comfortable driving this car because it is unsafe when I am on autopilot on the highway it would randomly stop the car by breaking instantly out of nowhere when there isn’t any car in front of me?! Please give me another car that is more safe to drive!?

I had come to a complete stop at the red light for about 1-2 minutes when, unexpectedly, my car surged forward and collided with the vehicle in front of me. Initially, I believed someone had rear-ended me and caused the accident, but that turned out not to be the case. Although I attempted to apply the brakes to prevent the collision, it was unfortunately too late.

Dear NHTSA Representative, I am writing to express my deep concerns and seek resolution regarding the latest version of autopilot enforced in the recent Tesla recall, identified under Campaign ID #23V-838. I am a Tesla owner that’s deeply invested in the safety and functionality of my vehicle. Recent reports indicate that the mandated autopilot update has rendered the car unsafe and nearly undrivable with autopilot engaged. Disturbingly, users have reported false warnings, causing drivers to divert their attention from the road and react to incorrect information. This poses a significant safety risk to drivers, passengers, and others on the road. I wish to bring to your attention that the autopilot feature in my vehicle is currently usable, and I am hesitant to compromise its functionality based on the reported issues with the mandated update. It is disconcerting that a safety recall mandated by the NHTSA could potentially make my vehicle...

Unknown

I was traveling about 10-15 mph and my car unexpectedly activating the automatic emergency braking system. It was very scary and dangerous

while driving my Tesla Model 3, using the ACC and self-steering option, I occasionally get "forward collision warnings" when going over a hill, where you can't see the road until you get over the hill. I have also had the same "forward collision warnings" on a flat stretch of road when there is clearly nothing in front of me in my lane. I have also been experiencing "phantom braking" episodes, noticing a pattern where they will happen as I approach a bridge overpass, as if the car thought the bridge overpass was perhaps an obstacle. These occur on a fairly regular basis, as in, at least 5-10 times per month. I drive a lot of highways, and drive approx 20,000 miles per year

Dear NHTSA, I am writing to report a safety defect with my Tesla Model 3, VIN [XXX] . On July 28th, 2023, at 3:34 PM PST, My wife [XXX] was driving into my driveway at my home at [XXX] . The weather was sunny and car was traveling at 5-10 mph. The car was not in Autopilot and the driving mode was set to Chill mode. When pressed the brake pedal to slow down, the car did not stop and went straight into my garage, causing significant damage to my home and the car. Very experienced driver and I am confident that wife was applying the brake pedal correctly. However, the car simply did not stop. I am very concerned that this is a software glitch in the Tesla car, and I am worried that it could happen to other Tesla drivers. I have tried to contact Tesla to report...

Driving in full self driving made a sharp unexpected last second turn directly into a pilón at 30 mph causing front end damage. I have the the incident recorded on video from the Tesla. Full self driving did not disengage prior to crash and hands were on the wheel, it just happened within .5 seconds and there was no way to react in time. I reported to Tesla many times and was ignored Here is a link to the video [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving down a residential street at approximately 20 miles per hour. The emergency braking system suddenly activated and the car slammed on the brakes. There was nothing in the road at all. Some people were on the side of the road and they confirmed that there was absolutely nothing in front of the car to cause the braking. The brakes engaged so rapidly that I have whiplash in my neck. This was a very scary incident and felt very unsafe. Had there been a car behind me, they would have rear ended me for sure. I feel traumatized by this event and am now scared to drive. The emergency braking warning came on at the same time the brakes slammed.

When driving using Full Self Driving or Autopilot, the car unexpectedly and suddenly brakes as if there is something on the road which is in the way even though there is nothing there. On one trip of 260 miles, the car unnecessarily braked twice on the freeway. Had someone been following too closely to me it could have caused a collision.

The issues are all related to the feature called AutoPilot, all on a highway, traveling at highway speed while using autopilot. sunny, dry, daytime 1. The car hard braked with no other vehicles or objects on roadway. I had to take back control quickly 2. The car hard braked when i was driving in the right lane and a car was in the entrance lane beside me, causing a near accident with the other vehicle which was trying merge onto lane, i had to quickly take back control to avoid a dangerous situation. 3. I was in left lane and turned on the turning indicator to move to the right lane, the car started to move lanes, then suddenly abandoned attempt, moving back to the original lane. there was no object in the target lane and there was a car behind me in the left lane wanting to pass, causing...

Vehicle has experienced dramatic increase in so-called phantom braking incidents when adaptive cruise control is turned on. The vehicle suddenly and forcefully brakes for no apparent reason even when there are no vehicles or other hazards in front or on the sides of it. I have revisited sites where the incidents have occurred to see if there is some environmental factor such as reflective signs that might have triggered the incidents but have been unable to replicate them. They are completely random. I am aware that this phantom braking issue has previously been reported but based on a review of various Internet sites such as Reddit, owners have reported a dramatic increase in incidents over the past month or so.

Driving on the highways in cruise control. Car auto braked when going under an under pass. No other cars in front to trigger.

Multiple "phantom braking" events in which the car, on a clear day & no cars around, would suddenly slam on the brakes and try to stop. No messages were displayed on the screen. Tesla Service seems uninterested as it is a "software" issue. I tried a full reset of the car with no improvement.

On a trip today from Pasco wa to Spokane WA (us395) there autopilot and full self driving would randomly phantom brake for no obvious reason. It happened every 5 minutes or so in both directions. Scary and dangerous.

While attempting to park the car in a parking lot, the car did not respond to the release of the accelerator or the press of the brake but just continued. Car continued to jump the curb and run into a concrete wall without slowing or stopping. No auto functions were enabled on the car. Car was attempting to park in the spot on the right side of the photo but just continued on and ran into the stone wall.

During rush hour traffic on Highway 101 Southbound near Redwood City, I experienced an incident while utilizing AutoPilot and AutoSteer. Despite being in stop-and-go traffic, the vehicle did not respond to the car in front which suddenly came to a complete stop. Neither the Automatic Emergency Braking system nor warning sounds, which has been known to activate erroneously, were triggered. As a result, I was forced to manually brake at the last moment, but there was not enough time for manual intervention and the vehicle collided with the car in front. It is worth noting that every other instance in which I have utilized AutoPilot and AutoSteer, which occurs on nearly every trip I take, the vehicle has been able to respond and brake, albeit with slow reaction times and close distances.

The contact owns a 2018 Tesla Model 3. The contact stated while driving 68 MPH, the vehicle experienced phantom braking. The contact stated no warning light was illuminated. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was 41,023.

The car has FSD Beta - When exiting on freeway off ramp numerous error codes came on and car lost ability to steer effectively. The car was not in Autopilot mode when the incident occured.

The contact owns a 2018 Tesla Model 3. The contact stated while driving at various speeds, the vehicle experienced phantom braking. There were no warning lights illuminated. The contact stated that there was no vehicle or objects around the vehicle at the time the failure occurred. The contact was not using autopilot at the time the failure occurred. The contact stated that the failure had been reoccurring while driving. The contact stated that the failure reoccurred while driving at 5 MPH with her 12-year-old son sitting in the front passenger’s side seat. The manufacturer was notified of the failure and informed the contact that they were not aware of the failure and the issue would be escalated. The vehicle was not diagnosed nor repaired. The failure mileage was approximately 20,000.

While driving a Tesla Model 3 on an interstate highway at a speed of about 75 MPH with Full Self Driving engaged, the car aggressively applied the brakes for no apparent reason. This action could cause injury to passengers in the vehicle or an accident involving another vehicle that is following too closely. No information about the reason this occurred was presented. Tesla is aware of this issue.

While on Adaptive Cruise Control on a highway at 70mph, the vehicle’s autonomous system triggered an emergency brake causing the speed to drop down. Reacted and immediately sped up to avoid any possible collision from vehicles in the same lane. No obstructions in the lane or the immediate lanes at the time of the incident. No weather related occlusions (no rain, haze or fog)

Vehicle failed to detect object in HOV lane while traveling at 73 mph north on I-280. Vehicle impacted object with no warning or braking, causing car to become airborne and resulting in $19000 in damages. Note: please use ZIP code as password to access the insurance report (CSAA attachment)

Front wiring harness corrodes causing steering control to corrode. This also affects lane keep, braking, and speed control. At least 6 warnings associated with the short circuit

Phantom breaking. I was on cruise control only (not FSD mode) on HWY at 65 mile/hr, and my car breaking suddenly to 45 ml/hr until I took over. No one injured and no accident. There was a car behind of me when it happened, and the car changed line immediately.

Multiple times when using the Auto-Pilot feature the brakes will engage and dramatically slow down the car for no reason. This has probably happened 5-10 times. At this point it is getting concerning. Luckily, no cars have been following me closely enough to cause an accident, but I'm afraid that this will occur at some point unless this is fixed. I am usually driving on the highway and there is nothing in front of me and the brakes will engage. On the screen I see arrows in the passing lane flowing in the opposite direction. I'm not sure what this means or if this is triggering the brakes.

Car frequently brakes for no apparent reason when driving on the freeway. This happens when either adaptive cruise control only or autopilot is used. For example, it has happened on a divided highway during daytime, in good weather, with clear lane markings, with no obstructions. It also happens sometimes when certain road signs come into view, such as "Caution" or "Men Working". There was no phantom braking problem with the car prior to 2021, when a software change was made. It is scary and dangerous for the car to slam on the brakes without any reason. I have stopped using adaptive cruise control or autopilot because of the risk of being rear-ended on the freeway.

Very recently Tesla had a standard software update for the car. They happen all the time. There was no warning with this update (or any update I’ve seen) about removing paid for features if you install the update. This one disabled my radar and turned my radar based autopilot I specifically bought this car for into vision based autopilot. I paid $15k for full self driving and never requested the beta to use it because I specifically did not want to disable my radar because of safety concerns. They did it anyway now, and without warning. It phantom brakes now all the time and it never used to and the general autopilot performance is worse and unsafe. I can’t use it reliably anymore and Tesla refuses to downgrade the firmware or do anything to re-enable my radar and I’m absolutely livid. This is a $75k car that I got for...

On Sept. 9th, around 9:05pm, my wife was on the driver's seat, FSD was engaged. so the Tesla model 3 car was driving itself on highway 395 close to susanville. Then suddenly a car coming, we had a head-on collision, the other car's front left hit our front left. The other driver passed away, my wife and I got serious injuries, we are recovering from 3 surgeries. 1.FSD did not give alert or warning, 2.FSD did not break the car, 3.FSD did not slowing down the car 4.FSD did not change direction of the car. 5.FSD just kept the speed and direction. “Disabling FSD” needs time, my wife did nothing, because there was only few 10th of a second. But I am afraid if she was driving without engaging FSD, she might be able to steer the car slightly to the right to avoid the accident. CHP will pull data...

Constant "phantom braking" occurrences despite great conditions (sunny, no wind, good visibility, low traffic) during a road trip that was two hours both ways. Typically happened when coming to the crest of small hills, or when "road mirages" due to light refraction, or when a car in the distance just became noticed by the vehicle. Happened both on divided highway and two lane highways. Several braking occurrences were pronounced enough to be likened to not quite slamming on the brakes, but definitely applying them firmly. This, besides being terrifying and attention grabbing, itself a safety issue, it could also mean close following vehicles may have to react in such a way to also apply brakes heavily at highway speeds which could cause a rear end collision or swerving to avoid my vehicle. I also get little to no warning it's about to happen, until it does, no alarms go off,...

My Model 3 often breaks for no reason when using autopilot on freeways. Even though there is no vehicles around my car, the car "phantom brakes" often causing me to slow down extremely fast with no warning.

On two occasions while on adaptive cruise control, my car slammed on the brakes while driving on the interstate going 65-70 mph. This was terrifying and the car practically stopped in the middle of the road. We are very lucky no one hit us from behind and that we did not lose control.

Newer software disables existing radar in the car; this "Tesla Vision" is objectively worse at providing automatic braking response correctly, often scared literally of it's own shadown Newer cars don't even include the rdar, an ill-advised cost saving initiated by Tesla

regularly when autopilot or cruise control are engaged, the emergency braking will abruptly slow the vehicle when no object is on the road, highway, or interstate. This creates an unsafe environment when vehicles behind you are not following at a safe distance. We have had several instances a month where the vehicle will slow from 75 to 30 in a few seconds and require human intervention to speed up. This issue has been ongoing since we received the vehicle almost 30,000 miles ago.

Driving down the freeway with Autopilot engaged and the autopilot started hard braking in the middle of the road going 70mph. No accidents occurred but it was a very dangerous situation

While driving my vehicle, no matter if I am on the interstate, country roads, side roads the vehicle will brake for unknown reasons. It will go from 65mph to 35mph, or 55mph to 45mph, etc. This happens whether in cruise control, auto drive or manual drive. It also will brake behind trash trucks with their flashing lights on, intersection flashing lights or warning flashing lights on the side of the road. It has also done it at night with oncoming vehicles. This is a daily occurrence. I have contacted Tesla service center on a few occasions and I am always told it is a computer issue, there is nothing that can be done. This is an extreme SAFETY issue and can cause a rear-end accident or another type of accident. I can not believe this issue has been going on for years and Tesla can not come up with a...

This defect is regarding Tesla’s FSD (beta). In the FSD mode, the car switched lanes without noticing the presence of a vehicle in the destination lane and caused a non-fatal accident. I was driving on O’Shaughnessy blvd in San Francisco around 8:50 AM. The weather was clear, and traffic was moderate. I had turned on FSD and entered my destination address. I stayed below the posted speed limit as I was new to FSD and wanted to stay extra alert. At this point, O’Shaughnessy is a single lane on each side. The lane gets wider as it nears a major intersection (Portola Drive). And then it splits into two lanes. Finally, the right lane becomes the right-turn-only lane. Per the route, the car was supposed to take a right turn at the intersection. When the lane split into two, the vehicle remained on the left for about 30 feet. Then...

With NO WARNING, and while on AutoPilot-Full Self Drive, our Tesla TOTALLY HARD AND LONG BRAKED out of nowhere, THRUSTING our necks forward for four seconds until I could disengage the brake, then SLAMMING our heads to the headrest. I have a CERVICAL SPRAIN, WHIPLASH, and a CONCUSSION! I was driving 65mph. I’ve been to the ER, to a chiropractor, and to physical therapy since this incident Sunday, July 31, 2022 at 6:37-6:38pm. On the 405 South. I’ve reported it to Tesla Service who said it was escalated to the Fremont location Engineers to review which takes 2-3 months! I have INJURIES! Phantom braking is usually unwarranted and terrifying but has not HURT ME until this time. I was almost HIT by the car behind us!