What 434 owners told NHTSA about the 2020 Tesla Model 3 Bev

When driving on a longer trip, I have repeated sudden deceleration and sometimes harsh braking when using cruise control. This has also happened in normal daytime hours with no traffic around me on rural interstates. On my last trip, I had to keep my foot on the accelerator to keep the car at a constant speed. It is unnerving to me and very scary for passengers. It has made it impossible to use cruise when I have passengers. Tesla has said there is no hardware issue and have declined to service the car.

NHTSA ODI 11528158

When using cruise control from Las Vegas to Reno Nevada and also going back the car will brake extremely hard over 80 times one way which almost caused alone 4 major accidents with stopping abruptly for no reason causing the cars behind you to almost rear end you. This is tremendously dangerous and it s happening so often you can even use the cruise control. This does happen on other trips as well such as Las Vegas to Phoenix. When it slams the brakes randomly all your items get thrown to the front as well. This needs fixed before someone gets killed

NHTSA ODI 11524500

While driving in FSD, autosteer, traffic aware cruise control, and with all turned off, I have experienced 5-10 episodes of “phantom braking” on the highway at high speeds over the past 48 hours. I have driven in 4 states total so far; in sunny, cloudy, straight road ahead conditions, sometimes with cars around and sometimes on totally empty stretches of road. The first episode took my car from 80mph to 60mph extremely suddenly, with no warning, lurching me and the things in my car forward. I was shocked as I was unfamiliar with this issue. Luckily the car behind me at the time was about 1/8 mile away. However, this could have very easily caused someone to rear end me. This repeated over and over all day yesterday, sometimes the braking less severe than others. Now if using cruise control I need to hold my foot over the accelerator instead of the brake, which feels wrong and also unsafe, but it’s terrifying and I disengage cruise control if anyone gets too close behind me to be safe.

NHTSA ODI 11519720

Driving from Reno to Las Vegas on hwy 95. I was using the cruise control and the car repeatedly slammed on the breaks when there was nothing on the road to cause it. Breaking was applied dropping the speed from 5 miles an hour up to 35 miles per hour. The excessive breaking could have caused a crash if a semi was behind me. Every time it happened I noticed a phantom object showing up on the very limit of the traffic display screen. If there was any other vehicle picked up by the sensors the cruise control never malfunctioned. It braked at least 10 times during the trip. I talked to 10 other Tesla drivers and 9 told me they were having the same issue. The one driver that did not never used his cruise control.

NHTSA ODI 11519531

I was on a 3000 mile road trip over multiple interstates (including I-35, I-90, and I-80), and while the adaptive cruise control was engaged, the car would abruptly and aggressively brake when no other cars or obstacles were in the area. This would often be a 30mph deceleration before I could disengage cruise control and take over. This happened repeatedly, in multiple states, and in different weather conditions. At times, it was happening every 10 minutes. The system would sometimes, but not usually, make an alarm noise. This problem has become noticeably worse in later software updates. No accidents occurred because I would not use cruise control if other cars were in the area, and I eventually stopped using it altogether due to how frequently it was braking.

NHTSA ODI 11516416

Vehicle suddenly braked while traveling 70mph on freeway with traffic aware cruise control engaged. This incident happened 3 times during the same 40 mile trip. No other vehicles were within 50 feet of the vehicle in either direction. A rear end collision could have happened if another vehicle were behind me. No warning sounds occurred or warning indication on the computer screen. I purchased this vehicle used from Tesla 3 days ago. Tesla service has not been notified of issue.

NHTSA ODI 11515248

I get "phantom braking" on average about every 2-3 hours of highway driving with cruise control enabled. All of a sudden without any road obstructions or vehicles ahead, the car will suddenly break hard even at highway speeds. Sometimes it happens when I approach an underpass or get to a section where the pavement is darker than before.

NHTSA ODI 11509315

Driving on Interstate 295 (it is unclear what the official direction North, south, west). You are going south toward Philadelphia. Some signs say north but in reality it is only for a mile or two then the road bends due south. Every time I travel on this road and just before the Scuddersfall bridge, the car brakes to 30 MPH and it does it again on the other side of the bridge (the same direction). I have reported this many times on Tesla's "bug report" and for the 2 years + nothing has been done to correct the problem. The car doesn't have a problem in the opposite direction. I usually take it off the autopilot at this location to prevent the braking.

NHTSA ODI 11504953

Using Autopilot on an empty highway at appx 65mph, the auto pilot system began to brake aggressively without any obstacles in front of me. As it approached 40 or 30 mph, I pressed on the brake to cancel the autopilot before I was hit from behind. Scary.

NHTSA ODI 11504757

I was on the exit lane coming from Costco on 12/31/2022 at around 12:20 PM with a speed of about 40 miles . My exit is about 100 yards away. Tesla model 3 that I’m driving suddenly accelerated at high speed and pulled towards right and hit the wall next to freeway exit lane. Then it hit the wall on rear tailgate and rolled to middle of freeway within a fraction of seconds. Two vehicles coming on the freeway hit my car and after second hit my car completely stopped in the middle of freeway. I was able to come out safely and later CHP officers came and towed the vehicle

NHTSA ODI 11499653

Phantom braking: While in cruise or autopilot mode, it suddenly brakes on freeway without any obstacles observed.

NHTSA ODI 11498445

Traveling on a clear, dry highway on a sunny morning and once again the next day we experienced phantom braking. This occurred three times in two days. In all cases we were traveling at 75mph and were using the adaptive cruise control. In all cases there were reflections in the road from the heat mirage or from something far down the road. The car acted as if it saw something in the road and braked sharply. The driver had to accelerate to override the braking.

NHTSA ODI 11491841

While driving on an open highway using the Tesla Auto Pilot (Adaptive Cruise Control, NOT Full Self Driving), we experienced 3 separate instances of unexpected braking. In each case, we were on flat terrain with no vehicles in front of us for hundreds of yards. The weather was sunny and warm with few clouds in the sky. We were driving westbound between 10am and 1pm at the time of the incidents. During the first incident, the vehicle began to brake sharply and violently enough to startle, awake and scare a sleeping adult passenger in the front passenger seat. From memory, the braking rapidly dropped our speed by 15-20 mph. Thinking it was a simple glitch, I attempted to re-engage the system two more times and the same type of behavior occurred each time. I drove the remaining hours of our drive without engaging Auto Pilot. After researching the issue following the drive, I learned of the "phantom braking" issue many customers have reported. We then reported the issue to Tesla and created a service appointment to check out the vehicle. Tesla responded back that the ran a full remote diagnostic and the vehicle has no hardware issues reported by any sensors and said the service appointment was unnecessary because there was nothing to look at.

NHTSA ODI 11489830

Driving on cruise control (not autopilot), in the following conditions: on an interstate highway with all lanes in the traveling direction clear, no obstructions and no traffic to the front or to either side of the car, on a straight road with no bridge or on or off ramp in front of the car, daylight and no rain or or other participation, the car can unexpectedly and without warning aggressively brake. If the driver does not immediately regain control of the speed (by pressing the accelerator, or turning off the cruise control) the braking has caused the speed of the car to go from 75mph to 30mph. Unlike other Tesla accident avoidance features, the braking occurs with no indication that an obstruction is being avoided. I have owned the car since it was new and until Saturday 8 October 2022, the adaptive cruise control worked as expected. Since that Saturday (less than a week) the braking has occurred several times. Each time it required a sudden depress of the accelerator pedal to recover speed control of the car. The first photo I've attached shows a screengrab of the moment of one deceleration on Monday 10 October saved as a dashcam video. As you can see there is no obstruction and no other traffic around the car at the time. The second photo is a snapshot of the chat session I had with Tesla service where they claim that this behavior is caused by a curve, off ramp, a bridge, a two lane road. As you can see in the first photo, none of this is the case.

NHTSA ODI 11488872

The other driver hit the rear of my tesla model 3 which cause the car accelerate fast about 40-50 miles, the brake is not working either. I can not brake or slow down the car.

NHTSA ODI 11485478

Cars computer froze and I was stuck in cruise control. Hitting the brake would not disengage. Pressing up on the stalk would not disengage. I could manually slow/accelerate the car with the brake/accelerator but after letting off the car would continue on at that speed while everything else remains frozen. No turning signal function. I was afraid to attempt to stop the car fully as it would not disengage. Screen eventually went black and reset after what felt like forever. Functions returned to normal.

NHTSA ODI 11472462

The car exceeds the speed limit with adaptive cruise control/autopilot, despite all the available settings being set to strictly obey the speed limit. Driving on the highway in a 60mph zone enabling autopilot will set the speed to 60mph, as expected. If the speed limit increases, the car will change to the new speed limit, e.g. 70mph. Now, if the speed limit drops back down to 60, the car will NOT slow to 60, although the correct speed limit is displayed. Also happens on streets.

NHTSA ODI 11465163

The emergency automatic brake, cruise control and auto pilot feature gets disabled frequently. All 3 features gets disabled at same time. Contacted tesla service center in decatur-GA. They are saying they cannot find the problem and hence cannot solve it. They say the engineers are looking into it, and my car needs a firmware update. No estimated time to fix these issues is given. The service center advised that the car is safe to drive! Please help. Thanks.

NHTSA ODI 11460914

Vehicle was at a stop with brake engaged and then it proceeded to go full speed into a vehicle two meters away without acceleration pedal engaged. Emergency brake did not activate during or slightly before the collision. The brakes had to be engaged manually, but vehicle was already past a certain velocity on its own accord to be able to stop properly without damaging property or harming pedestrians.

NHTSA ODI 11457778

My Tesla Model 3 is equipped with standard auto pilot (no full-self driving) and traffic aware cruise control (TACC or otherwise known as adaptive cruise control). While engaged, I experience, on average, per 60-mile trip a minimum of 1 phantom braking event. Note this is not on residential, county or state roads, this is on divided highways. The vehicle will slam on the brakes for no reason and will at times activate the forward collision warning system. It's so bad I've disabled many of the safety systems for fear I will cause an accident. Traffic aware cruise control on a two lane road (this does not steer or lane center the vehicle), is unusable because it constantly brakes for oncoming traffic in other lanes, or aggressively brakes for vehicles turning in front of you, even with plenty of distance to clear. The system will even continue to brake, after the turning vehicle has fully cleared the road. This requires the driver to slam the accelerator to cancel the braking action. When I first purchased the vehicle in February of 2020, there were no issues with Phantom braking. This issue has become worse with over-the-air updates. I canceled my full-self driving subscription because the phantom braking was even worse with that software. Additionally, Tesla uses a driver safety score to determine insurance rates if you are using their branded insurance program. When these phantom braking events occur it sometimes registers as an emergency braking event which deducts from your overall score and can ultimately cause your rates to increase. When I enrolled in FSD, before Tesla would release the software, they required a certain safety score over a week's time. During that time the system falsely reported running red lights, emergency braking events, and aggressive stopping, while only using the regenerative braking system. They system will also flag you for tailgating with auto pilot engaged.

NHTSA ODI 11453749

There is a complete failure of the Autopilot (cruise control) feature and sudden braking when using. There is an extreme risk to personal safety when using this feature. On several occasions, I have been using this feature on the highway while going the posted speed limit of 65 or 70 mph. Suddenly, the vehicle will decelerate aggressively and violently causing any vehicles behind me to slam on their brakes to avoid a collision. This feature of the vehicle is not recognizing road signs, or other inanimate objects, correctly and mistakes them for some hazard that requires braking. Very dangerous.

NHTSA ODI 11453187

Phantom braking can occur when vehicles are passing at night and during the day for no reason. There is no adequate control to enable the windshield wipers. Many menus to access the wiper controls. Not safe

NHTSA ODI 11452574

On Tuesday 2/1/2022 approximately 9:20am EST, as I was sitting in a stop-and-go traffic, as the traffic was freeing up and started moving going roughly 5 to 10 mph, the vehicle automatically applied phantom brake - with a notification of emergency braking applied. I was not on cruse control or autopilot. i was in full control of the car yet it suddenly applied the ebrakes nearly causing someone to rear end me since the traffic had started moving.

NHTSA ODI 11450425

Using either cruise control or Full Self Driving mode, driving on divided highway, experienced sudden hard braking not due to any highway obstruction, road hazard, other vehicle, or weather. Without warning car dropped out of assisted control and abruptly applied brakes. This happened yesterday at 2:10 pm, 2:53 pm and 3:01 pm.

NHTSA ODI 11443645

The contact stated that while idling and waiting to pick up the elementary school kids in their vehicle, a 2020 Tesla Model 3 suddenly experienced unintended acceleration causing the driver to lose control of the vehicle and crash into the rear of the contact's vehicle and trailer. During the incident, the contact sustained a lower back injury and the driver of the Tesla Model 3 suffered a chest injury. A police report was taken at the scene. No further information was available. The failure mileage was unknown.

NHTSA ODI 11430258