# NHTSA recall 21V846000

A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.

- Published by: NHTSA \(United States\)
- Campaign number: 21V846000
- Manufacturer's number: SB\-21\-00\-004
- Manufacturer: Tesla, Inc.
- Reported: 2021\-10\-29
- Owners notified: 2021\-10\-25
- Component: FORWARD COLLISION AVOIDANCE: WARNINGS; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; FORWARD COLLISION AVOIDANCE:SOFTWARE; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
- Units potentially affected: 11728

## What is wrong

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.


## What can happen

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


## The 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.


## Remedy progress the manufacturer reported

- Report: Quarterly report 1, for 2021 quarter 4
- Filed with NHTSA: 2021\-12\-23
- Vehicles in the campaign: 11728
- Reported remedied: 11728 \(100%\)
- Reported unreachable: 0
- Reported removed: 0

These are the manufacturer's totals for the whole campaign at the end of 2021 quarter 4, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026\-10\-19.

## Vehicles this campaign lists

- [2017 TESLA MODEL 3](/makes/tesla/model-3/2017/recalls.md)
- [2018 TESLA MODEL 3](/makes/tesla/model-3/2018/recalls.md)
- [2019 TESLA MODEL 3](/makes/tesla/model-3/2019/recalls.md)
- [2020 TESLA MODEL 3](/makes/tesla/model-3/2020/recalls.md)
- [2021 TESLA MODEL 3](/makes/tesla/model-3/2021/recalls.md)
- [2017 TESLA MODEL S](/makes/tesla/model-s/2017/recalls.md)
- [2018 TESLA MODEL S](/makes/tesla/model-s/2018/recalls.md)
- [2019 TESLA MODEL S](/makes/tesla/model-s/2019/recalls.md)
- [2020 TESLA MODEL S](/makes/tesla/model-s/2020/recalls.md)
- [2021 TESLA MODEL S](/makes/tesla/model-s/2021/recalls.md)
- [2017 TESLA MODEL X](/makes/tesla/model-x/2017/recalls.md)
- [2018 TESLA MODEL X](/makes/tesla/model-x/2018/recalls.md)
- [2019 TESLA MODEL X](/makes/tesla/model-x/2019/recalls.md)
- [2020 TESLA MODEL X](/makes/tesla/model-x/2020/recalls.md)
- [2021 TESLA MODEL X](/makes/tesla/model-x/2021/recalls.md)
- [2020 TESLA MODEL Y](/makes/tesla/model-y/2020/recalls.md)
- [2021 TESLA MODEL Y](/makes/tesla/model-y/2021/recalls.md)

## Bulletins for the same vehicles and component

A bulletin is the manufacturer's note to its dealers. It is not part of this recall.

- [SB\-23\-17\-002 R1](/bulletins/10240956.md), 2023-08-21, Service bulletin
- [SB2233006](/bulletins/10235002.md), 2023-04-24, Service bulletin
- [SB2233005](/bulletins/10235001.md), 2023-04-24, Service bulletin
- [SB2233004](/bulletins/10235000.md), 2023-04-24, Service bulletin
- [SB2233003](/bulletins/10234999.md), 2023-04-24, Service bulletin
- [SB2233002](/bulletins/10234998.md), 2023-04-24, Service bulletin
- [SB\-23\-17\-002](/bulletins/10234055.md), 2023-04-10, Service bulletin
- [SB2233006](/bulletins/10214118.md), 2022-06-13, Service bulletin
- [SB2233005](/bulletins/10214117.md), 2022-06-13, Service bulletin
- [SB2233004](/bulletins/10213756.md), 2022-06-13, Service bulletin

## Check a VIN

- [NHTSA recall lookup by VIN, United States](https://www.nhtsa.gov/recalls)
- [Transport Canada recall search, Canada](https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng)

JSON: [/v1/recalls/nhtsa/21V846000](/v1/recalls/nhtsa/21V846000)

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