# Service bulletin 21PBl

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10203082
- Published by NHTSA: 2021\-11\-05
- Manufacturer's number: 21PBl
- Manufacturer's date: 2021\-10\-18
- NHTSA component: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\)

## NHTSA's summary

Electric Stability Control – Malfunction Indicator Lamp May Not Illuminate – NHTSA ID: 21V\-719. An incorrectly programmed software parameter results in a failed signal from the electronic stability control \(ESC\) system to the dash lamp that indicates a malfunction. Updating the software parameter via Davie4 resolves the issue.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203082-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203082-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Driver assistance

## Vehicles listed

- 2022 PETERBILT 567
- 2022 PETERBILT 579

## Recalls for the same vehicles and component

- [23V007000](/recalls/nhtsa/23V007000.md), 2023-01-16: ELECTRONIC STABILITY CONTROL \(ESC\)
- [21V719000](/recalls/nhtsa/21V719000.md), 2021-09-16: ELECTRONIC STABILITY CONTROL \(ESC\):CONTROL MODULE:SOFTWARE

## Other bulletins for the same vehicles and component

- [24KWL/PBL](/bulletins/11036291.md), 2026-08-20, Service bulletin: FORWARD COLLISION AVOIDANCE: WARNINGS. The verbiage in the Introduction section has been updated.
- [24PBL](/bulletins/11013775.md), 2025-02-05, Service bulletin: FORWARD COLLISION AVOIDANCE: WARNINGS; UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Safety Recall Updated software and procedures are now available. Certain Vehicle Model Year 2021\-2025 Peterbilt chassis configured for trailer towing require a software update for the Bendix EC80 ABS ECU. Software update procedures for certain Battery\-Electric Vehicles \(BEV\) and EC80 ABS ECU part numbers are not yet available. This bulletin will be updated when software update procedures are available for these chassis. Safety Recall publish date: 1/10/25

JSON: [/v1/bulletins/10203082](/v1/bulletins/10203082)

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