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Forward collision avoidancePart report

2021 Tesla Model 3 Forward collision avoidance Problems

Complaints
411about this part
Share
61%of 673 total for the year
Median mileage
10,000miles
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

NHTSA recorded 411 complaints about the forward collision avoidance of the 2021 Tesla Model 3, 61% of the 673 complaints for this model year. Where a mileage was given, the median is 10,000 miles. 10 of these say a crash was involved and 1 a fire, according to the filers. 3 recall campaigns on record are filed under a similar system.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“vehicle constantly phantom brakes while driving. i have reported 100+ incidents thru my tesla report bug feature. It will read the speed limit sign on the off ramp and slow the vehicle down 20mps abruptly, it will see a car on an onramp and slam the brakes on thinking there is a collision coming. it is every single day using cruise control”

NHTSA complaint #11628144, filed 2024-12

“I drove into my neighbor’s driveway to drop her off. As I slowed down and applied the brakes to stop, the car failed to respond. It continued forward, running over the flower and plant pots at the edge of the driveway, crossing the backyard, and finally colliding with the trees and bushes at the rear of the property. All airbags deployed, and the vehicle was damaged beyond repair.”

NHTSA complaint #11695420, filed 2025-10

“I was driving with the Autopilot on, traveling about 65 mph on the freeway when the automatic emergency braking system kicked in for no reason. There was absolutely nothing in front of the car when it aggressively braked, very suddenly. I was very lucky no one was behind me. I have not reported this directly to Tesla, no one has inspected or confirmed this event.”

NHTSA complaint #11509117, filed 2023-02

“While driving in cruise control, my Tesla 3 braked for no reason. No accident occurred because no one was behind me. It has happened about 10 times. It has not been confirmed by a dealer because I do not live near a dealer. It has not been inspected by the manufacturer, police or insurance representatives. No warning lights or messages appeared to warn me.”

NHTSA complaint #11450227, filed 2022-02

“Major phantom Braking at 70mph on interstate 5, 4 times the brakes slamed on as if yo had done an emergency stop from 70mph to 20mph fortunately we were not rear ended as I had my son and grandchildren in the car. The car was in cruise control on each occurrence I finally had to stop using it for fear of a major accident”

NHTSA complaint #11541057, filed 2023-08

Related recalls

Forward collision avoidance: other model years

YearComplaintsShare of year
2026724%
20253025%
20244922%
202317942%
202253569%
202141161%
202015735%
201917027%
201820320%
2017830%

Other parts of the 2021 Tesla Model 3

Brakes
126 complaints
Vehicle speed control
123 complaints
Other or unknown
95 complaints
Electrical system
80 complaints
Lane departure
34 complaints
Visibility (wipers, defrost, mirrors)
34 complaints
Steering
28 complaints
Body and structure
17 complaints
Transmission and drivetrain
17 complaints
Suspension
16 complaints
Seat belts
15 complaints
Fuel system
10 complaints

← All problems reported for the 2021 Tesla Model 3

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology