Campaign 21V-846

Communication error may cause false forward-collision warning (FCW) or unexpected activation of the automatic emergency brake (AEB) system

Defect summary

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.

Consequence

Unexpected activation of the AEB system may cause the car to stop suddenly, increasing the risk of a crash.

Remedy

Tesla Service has released an over-the-air (OTA) software update, free of charge. The recall began October 25, 2021. Owners may contact Tesla customer service at 1-877-798-3752. Tesla's number for this recall is SB-21-00-004.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Source: NHTSA ODI recalls file, campaign 21V846000. Text as published by NHTSA.

Vehicles covered

4 product lines are covered

Owner complaints filed with NHTSA about driver assistance on these vehicles: 2,111, of which 172 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 21V-846
Make	Model	Model years	Complaints on this component
Tesla	Model 3	2017 to 2021	1,037
Tesla	Model S	2017 to 2021	219
Tesla	Model X	2017 to 2021	130
Tesla	Model Y	2020 to 2021	725

Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.