# Emissions E327

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: Emissions
- NHTSA id: 11014767
- Published by NHTSA: 2025\-03\-04
- Manufacturer's number: E327
- Manufacturer's date: 2025\-02\-27
- Campaign id or software version: E327
- NHTSA component: ELECTRICAL SYSTEM; ENGINE

## NHTSA's summary

"PSB E327: PACCAR MX\-11 and MX\-13 OBD Software Update Vehicles equipped with PACCAR MX engines with Engine Software Version NA202 or NA206 may display a dash STOP lamp incorrectly. PCI\-2 software on these chassis must be reverted from NA202 to NA201 \(Pack 2 injectors\) or from NA206 to NA191 \(Pack 1 injectors\) to prevent incorrect STOP lamp display."

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014767-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014767-9999.pdf)

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

## Components

Electrical system, Engine

## Vehicles listed

- 2020 to 2021 PACCAR MX\-11
- 2020 to 2021 PACCAR MX\-13

JSON: [/v1/bulletins/11014767](/v1/bulletins/11014767)

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