# NHTSA recall 21V579000

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: 21V579000
- Manufacturer's number: N212340970
- Manufacturer: General Motors, LLC
- Reported: 2021\-07\-29
- Owners notified: 2021\-08\-27
- Component: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE:SOFTWARE
- Units potentially affected: 2
- Part numbers: 84763654, 84304251, 85114734, 84763763, 84304251

## What is wrong

General Motors, LLC \(GM\) is recalling certain 2021 Chevrolet Tahoe and GMC Yukon vehicles.  Dealer service technicians may have calibrated the brake system incorrectly, affecting Electronic Stability Control \(ESC\) , traction control, Anti\-Lock Brake System \(ABS\), and braking while towing a trailer.


## What can happen

Overall braking performance may be compromised, increasing the risk of a crash.


## The remedy

Dealers will recalibrate the brake system control module, free of charge.  Owner notification letters were mailed on August 27, 2021.  Owners may contact Chevrolet customer service at 1\-800\-222\-1202; GMC customer service at 1\-800\-462\-8782.  GM's number for this recall is N212340970.


## 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 4, for 2022 quarter 2
- Filed with NHTSA: 2022\-07\-18
- Vehicles in the campaign: 2
- Reported remedied: 2 \(100%\)
- Reported unreachable: 0
- Reported removed: 0

These are the manufacturer's totals for the whole campaign at the end of 2022 quarter 2, 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

- [2021 CHEVROLET TAHOE](/makes/chevrolet/tahoe/2021/recalls.md)
- [2021 GMC YUKON](/makes/gmc/yukon/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.

- [25\-NA\-065](/bulletins/11017173.md), 2025-04-24, Service bulletin
- [21\-NA\-043](/bulletins/11014230.md), 2025-02-12, Service bulletin
- [21\-NA\-155](/bulletins/11013242.md), 2025-01-30, Service bulletin
- [24\-NA\-073](/bulletins/11013031.md), 2025-01-23, Service bulletin
- [PIT5828D](/bulletins/11012938.md), 2025-01-20, Service bulletin
- [PIT6134F](/bulletins/11012247.md), 2025-01-03, Service bulletin
- [17\-NA\-271](/bulletins/11011990.md), 2024-12-19, Service bulletin
- [21\-NA\-043](/bulletins/11011709.md), 2024-12-10, Service bulletin
- [PIT6134E](/bulletins/11011382.md), 2024-12-05, Service bulletin
- [21\-NA\-275](/bulletins/11009463.md), 2024-10-30, 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/21V579000](/v1/recalls/nhtsa/21V579000)

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