What 650 owners told NHTSA about the 2021 Tesla Model 3 Bev

Vehicle will engage breaks when there is no obstacle or while on a straight road when placed in cruise control.

NHTSA ODI 11467363

While driving with cruise and steering control, car will emergency brake like something is in front of the car. Many call it "phantom" braking. One time on a 2 lane highway the car braked hard for no reason, it happened on the way to Vegas and a large group of bikers were behind us. Very scary at highway speeds. We let the bikers pass.

NHTSA ODI 11467368

I’ve experienced the “phantom braking” most recently on may 29th, on highway. No cars around or anything that should have trigged it. I was in autosteer mode when it happened both times.

NHTSA ODI 11467448

The Tesla Autopilot system in my Model 3 repeatedly malfunctions by way of "phantom braking".The latest incident I was luckily able to capture on camera. In this incident, my vehicle is driving down a Nevada highway in the heat, with no oncoming vehicles and a vehicle in my lane well over a mile away and increasing (they had just passed me a few minutes prior). With the speed set to 74mph (driving 73 at the time) the vehicle proceeds to apply heavy brakes, and slows to 56mph for no reason (no vehicles behind, thankfully). My safety and the safety of other motorists is put at risk with these events as the unexpected braking not only whips around the passengers of MY vehicle, but also puts at risk any vehicles that may be behind me, expecting me to maintain my current velocity. The problem has not been reproduced by a dealer as far as I am aware, but the service department of my local Tesla dealer has confirmed the issue is caused by the "Tesla Vision" camera-only system. They (service team) claim that there is no issue with the system, and that it is behaving as expected. They do not view this as a malfunction, and merely view it as the system being extra cautious, which is simply lazy. This component has not yet been inspected by any entity mentioned above. There were no symptoms of this issue prior to it occurring, however this did occur repeatedly over the course of my trip to/from Las Vegas.

NHTSA ODI 11466741

The car, when using its "traffic aware cruise control" exhibits extreme sudden breaking for no reason (phantom braking). On Thursday, I was on a major interstate in the middle of the day, perfectly marked lanes, no gradient changes, no weather or visibility issues, with absolutely nothing in front of me. The car would suddenly brake aggressively for no reason, sometimes hard enough to hurt my neck. If another car had been following me, I would have been immediately rear ended. Too add insult to injury, Tesla charges for the full self driving function which fully navigates the car on highways, and even though it is so dysfunctional that it is dangerous, they will not refund it after I reported this behavior. Tesla FSD and traffic aware cruise control, in it's current state, is a danger to the public.

NHTSA ODI 11466758

Referred to as "Phantom Braking," the vehicle decelerates dramatically when in "Autopilot" mode. This happens at seemingly random times and locations. It happens in the day or night, open or populated roads, multi-lane highways or single lane. The deceleration is so sudden that passengers in the car are thrown forward. One instance the car decelerated from about 75 MPH to 45 MPH in a matter of about 2 seconds. Thankfully no one was behind me. Others worry that if someone is following too closely, they could rear-end the Tesla... I don't think a vehicle would have to follow all that closely for this to cause an accident.

NHTSA ODI 11466145

It has happened before, but on a 4 hour highway trip yesterday, the vehicle engaged in 3 incidents of sudden phantom braking. Twice the road was completely empty with no other vehicles around me. The third time the shadow of a truck in another lane may have triggered the event. Each time we were traveling over 65 miles per hour. For the last hour+ of the trip, I disengaged the autopilot (adaptive cruise control) feature and drove completely manually.

NHTSA ODI 11463362

While driving, typically on two lane roads with oncoming traffic, the vehicle will suddenly break hard for no visible reason. Often it is the case that the vehicle breaks so hard that things in the car fly forward and the seatbelts lock up causing people to grunt at the force and scream. This happens while using full self driving or just regular cruise control. There is no warning and people behind my vehicle have a high likelihood a rear ending me since there is no visible or obvious cars for my breaking. Also it would appear that I am brake checking the person behind me, causing them to become angry with me through no fault of my own, but it is understandable based on the reaction of my vehicle. When this happens I typically report the issue directly to Tesla using their voice feature to report issues. The command is typically “bug report phantom braking.”

NHTSA ODI 11459656

While driving on the highway or freeway, the vehicle suddenly slowed dramatically as if the brakes had been heavily applied. It did this three times over the course of two days, always while the car was set on cruise control (not auto pilot).

NHTSA ODI 11458306

Brakes were automatically engaged and speed dramatically reduced on an otherwise deserted, two-line highway. Speed was reduced from 68mph to 30mph in a few seconds multiple times in the span of two hours. Adaptive cruise control was active at the time. This would put myself and any vehicles behind me in danger, so I disabled the feature for the remainder of the drive. The behavior has been reproduced multiple times since then, in various conditions. No warning lamps or other messages appeared at the time. I reported the problem to the manufacturer and schedule a service appointment. The manufacturer canceled this appointment, stating, "Our technicians will be unable to change this behavior."

NHTSA ODI 11458342

Phantom braking occurs often when using traffic aware cruise control. I have not been able to determine a pattern, as the malfunction is not consistent. It can occur on a 2-lane road (with lines) as well as on a 6-line divided highway. I can tell the difference between phantom braking and the vehicle adjusting speed for an upcoming curve, as normal adjustment occurs in the same spot each time. Phantom braking is unpredictable, and may not occur in a location that it previously had. There are days it never happens, or sometimes once a day, or has occurred 5 times in an approx 6 mile trip. During a phantom braking event, the car unexpectedly applies the brakes hard. I react by pressing the accelerator, which usually results in a speed greater than the speed limit. I use the bug report feature each time it occurs, so Tesla would be able to view each event. As I'm sure you can tell from the VIN, this is a camera-only Tesla system. I do not have full self driving.

NHTSA ODI 11457385

Was driving and automatic braking system engaged when there was no impeding incident.

NHTSA ODI 11457418

I was driving on interstate 8 from Tucson to San Diego. In a matter of 2 hours my Tesla activated the brakes on its own 5 times, sometimes in a rapid series of 2 to 3 times, causing me to lurch while going 75 mph so I immediately disengaged the adaptive cruise control. I was on a 2 lane divided highway with no cars in front of me, see picture attached. Since taking possession of my new 2021 model 3 in November 2021, it has happened about 11 times. I just had my wife research it. I will not be using this feature. A semi truck behind me almost swerved off the road because of my braking. This is unacceptable that Elon Musk is not recalling vehicles. His arrogance is going to kill people for this clear safety issue. Please take over and do the recall. They sold me this car knowing this was an hazard since June 2021.

NHTSA ODI 11457424

We were traveling at about 75 mph on Intestate 94 in Wisconsin (same speed as the other cars around us) using adaptive cruise control when our car suddenly hit the brakes, the display showed the speed limit sign of 70 MPH, but the display where it would have shown the max speed we set, instead showed maximum speed of 40 mph. I used the accelerator pedal to return the speed to that of the surrounding traffic without problems. During other parts of the journey cars came up close behind us as they wanted to go faster and had this happened then we would have been the lead car in a severe rear end collision. This happened several other times during the same two day road trip, including once about a minute before the incident described above, but none were this severe, perhaps "lightly" tapping the brakes even though there would not have been a need to.

NHTSA ODI 11455995

When the cruise control is set at a speed or the line centering cruise control is used the car will slam on it's brakes and go from the set 75 to between 50-60mph then back to the set speed. This happens almost every time I drive the car on the highway and a few times in town(35mph) it happens so often I stopped using cruise control because I am afraid of getting rear ended. I have been looking online and others are calling this phantom braking.

NHTSA ODI 11455026

The car randomly and violently applies the brakes, this occurs when it is in cruise control. It may occur due to shadows, oncoming cars both on two and four lane highways. Also occurs if I pass a semi truck on a 4 lane highway. It occurs nearly every time I use the cruise control. I have had cars in back of me nearly hit me due to the sudden and unexpected braking at highway speeds.

NHTSA ODI 11454913

This vehicle phantom brakes during our last 2k miles trip. Happens while passing under pass, bridges, on coming vehicles on 2 way lanes, and just randomly when i was the only car on the highway.

NHTSA ODI 11454950

On several occasions (probably around 10 times) since I purchased the car in November of 2021 I have experienced phantom braking while using adaptive cruise control. Most have been minor with a couple instances of severe braking that could definitely have caused a rear end accident if there were cars behind me. These have occurred on busy city streets while traveling 40-50 mph. None have occurred on freeways. I have not notified Tesla but see that others are having problems too. Software appears up to date.

NHTSA ODI 11454674

I have owned this car for almost 4 months. In that time we have experienced 4 incidents of the car deciding that for no reason it needed to slam on the brakes so hard we were thrown forward in our seats and went from speeds of 50-60mph on relatively fast highways to about 20mph. 3 of the 4 times we were in cruise control. But this latest event happened NOT in cruise control and there was literally nothing anywhere in front of us. However there was a car behind us that had to swerve into a different lane to avoid a collision. This last time was terrifying and we have scheduled an appointment with the dealer. But recently we have come to find out this has happened to other owners as well.

NHTSA ODI 11454547

My Tesla 3 accelerated out of control when parking at my place of work which is a daycare center. I could have killed children, others and myself. My foot was fully pressed on the brake. Tesla is claiming it is driver error. That is false my foot was pressed fully on the brake. Scared to go back in the car. I don’t want that car on the road. I hit the curb went airborne missing a car, sign, brick wall, trees onto an embankment. I have a wittiness too.

NHTSA ODI 11454270

Tesla Model 3 Phantom Braking while on cruise control. This car is a daily driver mostly expressway miles and cruise control is used every day for the majority of the drive. While driving on cruise control at 70 miles an hour the car will randomly brake hard enough for all items on the car seats to be sent to the floor. This happens in wide open situations with no other cars around in broad daylight. This has been occurring about twice a month since purchase. I am worried someday I may be rear ended or the car may brake hard into a slide. This has been mentioned to Tesla multiple times at service calls and they say they are working on it

NHTSA ODI 11454245

phantom braking

NHTSA ODI 11453654

Was driving on clear roads, there was a driver ahead of me but they were over 100 yards away, the vehicle behind me swerved to make sure they didn't get hit by my car's auto-braking safety feature. the vehicle was on autopilot using adaptive cruise control and just randomly used the safety feature without any warning or indication that there was any object on the freeway. The Incident had occurred in the morning on the 405s freeway.

NHTSA ODI 11453469

Three times so far in a week, the car has had extreme hard breaking on the freeway. These were done in full self drive mode. Absolutely terrifying and so unsafe for my family to have this happen.

NHTSA ODI 11453285

The car will brake seemingly for no reason while on Autopilot. The environment does not change at all, yet the car will randomly brake very hard as if someone was in front of me and slammed the brakes. It also happens very commonly, more common than tolerable. No warning beeps or chimes or any indication of anything event. I'm not sure if this is inspectable, I have brought the car to service a few times under warranty for unrelated issues. This problem is pretty much widespread across Tesla's autopilot system. This has happened many times, but the most dangerous one by far was on I-75 and slammed the brakes from 85 to 45-35 in a matter of seconds.

NHTSA ODI 11453084