NHTSA (USA)Critical
2017–2021 TESLA MODEL 3NHTSA Campaign #21V846000
The official notice
Defect
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.
Safety Risk
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.
11,728 vehicles affectedMfr ref: SB-21-00-004Updated June 10, 2026