2021 TESLA MODEL 3 Complaints

The car has been phantom braking wrecklessly since July and has not been fixed. It almost caused an accident yesterday morning on the way home from my work. There was a vehicle approaching in the oncoming traffic lane and the lights were on. My car slammed on its brakes causing the person behind me to swerve. If it is low light conditions and a car is approaching in the oncoming traffic lane my Tesla will phantom brake almost always. This started with the vision only vehicles as my past Teslas with radar did not do this. It is now impossible to drive in low light conditions even with cruise control without the car slamming on its brakes constantly in autopilot or cruise.

Adaptive cruise control is becoming dangerous on two lane roads. It repeatedly tries to slam on the brakes as if there is an obstacle whenever a large truck or similar vehicle passes in the oncoming lane. It is dangerous to vehicles driving behind us and defeats the purpose of having adaptive cruise control.

The car keeps abruptly braking between 10-20 mph speed reduction while at highway speeds. Seems to be when there's minor hills or curves but otherwise entirely open road without nearby vehicles. Happening in a 4 lane and 2 lane highway with cruise control set (not self driving or autopilot) and the autopilot, autosteer, forward collision warning, and automatic emergency braking options are all confirmed OFF.

We recently purchased a new Tesla Model 3. This vehicle has Tesla Vision and doesn't have the radar unit to assist with TACC or Autosteer. With this vehicle, it has phantom braking on a frequently basis. For example, I drive on a two lane highway and in a 20 mile drive in clear daylight the vehicle will phantom brake anywhere from 5-10 during the trip. These phantom braking vary from random light braking for no reason to full on hard braking. Fortunately, we've been lucky not to have anyone behind us when these incidents occur. I've contacted Tesla and given them multiple dates and times. I was told that they were able to look at some data on the car and it appears everything is working as it should and it "should" get better with updates. I was also given a bunch of excuses why it was working as it should. I even sent Tesla a video of it doing a hard phantom brake and i was told that the highway was narrow. I've argued with them that this is occurring every day on every drive when we are on a two lane highway. I basically get told that it's functioning as it should, which clearly it is not. When I tell them I owned a 2019 Model 3 and we had zero phantom braking issues with it, but they have no answers. I feel their go to answers are it's a software issue and blame the engineers, which us customers don't have access to. This is going to cause a crash one day if this issue isn't taken seriously.

What component or system failed or malfunctioned, and is it available for inspection upon request? - cruise control. How was your safety or the safety of others put at risk? - traveling at 55-60 mph on a 2 lane highway at night when the car suddenly put on brakes because it must of saw something but there was nothing. I believe this is called "ghost braking". There was a car behind us and had to slow down as well. Luckily no accident was caused but scared my wife and I. Has the problem been reproduced or confirmed by a dealer or independent service center? No. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? NO Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? It happened so fast I did not see any warning lights. The car just suddenly started to brake hard.

When the car is in assisted autopilot, the vehicle will brake very hard when not necessary.

While driving on the highway and using auto pilot it has had multiple instances of phantom brakes doing highway speeds it will slow cars down rapidly and for no apparent reason. Really needs to get corrected.

Our Tesla Model 3, while using the Adaptive Cruise Control, will apply full brakes with either nothing in the road ahead or with oncoming traffic on a 2-lane highway. This is extremely dangerous and a hazard to vehicles behind us. This occurs every time it is used, with frequency up to 4 times in a single minute. Tesla has cancelled 2 service requests this month stating this is normal operation.

This has happened frequently since I took delivery of the vehicle, I did have one repair request with tesla but they said they could not duplicate and the vehicle did not store enough data to confirm an issue. when driving with adaptive cruise control or cruise control with lane centering (autopilot) enabled the vehicle will SLAM on brakes (Like full emergency braking) with nothing in front of me. sometimes it chimes warning of a potential collision, sometimes it gives no visual or audible reason. It also will have more frequent events of mild to moderate braking. These events happen on interstates and two lane roads mostly but has also happened on multiple lane lower speed roads as well. it has gotten to where I do not use these features as I have almost been rear ended multiple times now due to these events. Tesla's general attitude to this was that it wasn't a big deal which i completely disagree. I have driven older teslas that still have a radar chip and it happens much less frequently and less severe on those. When I purchased the vehicle they informed me that the radar was no longer necessary and that it was to REDUCE these events. This happens from 20mph to 80+ all the way from 10 miles to the current 15,000

Any time I have the car in autopilot, it unexpectedly phantom brakes. Even when I'm not using autopilot, and I am using cruise control, the phantom braking still occurs. In several instances I have had people come close to hitting my car's rear. The braking is not subtle. It is rapid and aggressive. This issue creates a major danger for anyone in my car and others on the road.