2020 Tesla Model 3 automatic emergency braking problems
215 of the 451 complaints owners filed with NHTSA about the 2020 Tesla Model 3 name the automatic emergency braking (NHTSA’s “Forward Collision Avoidance” heading — forward collision warning and automatic emergency braking, including phantom braking). Filed under the same heading: 1 recall, 1 NHTSA investigation. Every figure below is a document in a federal file, linked; none is a failure rate, and none is a verdict on any one car.
What owners filed about the automatic emergency braking
Source: NHTSA complaint database17 of the 215 reports a crash · 0 a fire · 0 injuries. Self-reported, unverified.
Filed per year: 2020: 2 · 2021: 9 · 2022: 107 · 2023: 58 · 2024: 19 · 2025: 8 · 2026: 12
Too few of these complaints carry an odometer reading to say when the problem shows up.
451 complaints in all about the 2020 Tesla Model 3, 12 filed in 2026. The whole picture, every system →
Counts are owner reports to NHTSA, not verified defects, and scale with how many of these were sold; nothing here is a rate. NHTSA groups complaints coarsely, so “Forward Collision Avoidance” means the same area of the vehicle, not one fault.
Across model years: Tesla Model 3 automatic emergency braking problems, every year on file →
In owners’ own words
Source: NHTSA complaint databaseFiled with NHTSA by the people who own these cars, about the automatic emergency braking. Quoted as written, with anything identifying removed; unverified reports — what was said, not a finding that it was true.
On to different occasions while vehicle was in Enhanced Autopilot the car braked hard for no apparent reason. If another car had been close behind it might have hit me. Problem has not been confirmed by a service center or the dealer, nor has the vehicle been inspected by anyone.
Emergency braking kicks in at times when there's an oncoming vehicle in the opposite lane. It happens on straight roads in normal traffic when the oncoming vehicle is maintaining it's lane. The car will suddenly slam on the brakes when there's no chance of a collision.
I read this morning that there have been complaints about the automatic emergency braking engaging when it shouldn't and I would like to add my car to the list. I've had my Tesla a little over two years and turned off the feature about a year ago because it would hit engage the emergency braking when there was no reason to.
I have experienced phantom breaking twice with my model 3. The first time was on the 101 freeway near Santa Clause Lane outside of Santa Barbara. There was no car in front of me or a hazard on the road but the vehicle made a sudden stop while I was traveling around 55MPH.
Vehicle approached an upward slope which triggered a forward collision warning and (unsafe) emergency braking
What is on file about the automatic emergency braking
Source: NHTSA recalls, investigations and manufacturer communicationsRecall filed under this heading
- 21V846000 HighOct 29, 2021 · 11,728 vehicles
- Tesla, Inc. (Tesla) is recalling certain 2017-2021 Model S, Model 3, Model X, and 2020-2021 Model Y vehicles operating software version 2021.36.5.2. A communication error may cause false forward-collision warning (FCW) or unexpected activation of the automatic emergency brake (AEB) system.
NHTSA investigation
- PE22002 Unexpected Brake Activationopened Feb 16, 2022 · closed Jun 29, 2026
- On February 16, 2022, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE22002) to investigate reports of unexpected deceleration while driving with the adaptive cruise control system engaged in Model Year (MY) 2021 – 2022 Model 3 and Model Y vehicles manufactured by Tesla. The subject systems include Autopilot (all versions), Full Self-Driving (FSD) and Traffic Aware Cru…
Other systems with a record on the 2020 Tesla Model 3
Source: the same files- cruise control problems 69 complaints
Common questions
Source: NHTSA complaint database, recalls and manufacturer communicationsAre automatic emergency braking problems common on the 2020 Tesla Model 3?
They are documented: NHTSA holds 215 owner complaints naming the automatic emergency braking on this model year (48% of everything owners filed about it), and 1 recall, 1 NHTSA investigation are filed under the same heading. Whether it is a problem on one particular car is a diagnosis, not a count, and a count says nothing about how many were sold.
Is there a recall for the automatic emergency braking on the 2020 Tesla Model 3?
Yes — one campaign is filed under this heading: 21V846000. A recall is matched by VIN; check yours at nhtsa.gov/recalls.
When do automatic emergency braking problems show up on the 2020 Tesla Model 3?
Too few of the complaints carry an odometer reading to say. The model year's page shows the mileage curve across every system where it can.
What does NHTSA's "Forward Collision Avoidance" heading cover?
Forward collision warning and automatic emergency braking, including phantom braking. Owners choose the heading when they file, so it says which area of the vehicle the complaint is about, not which part failed.