# Service campaign 37\-004

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 campaign
- NHTSA id: 11030933
- Published by NHTSA: 2026\-04\-07
- Manufacturer's number: 37\-004
- Manufacturer's date: 2026\-03\-27
- Campaign id or software version: 37\-004
- NHTSA component: UNKNOWN OR OTHER
- Manufacturer's system: Software

## NHTSA's summary

PACCAR MX\-13 VECU3 Software Update \- Certain heavy\-duty chassis equipped with a PACCAR MX\-13 engine are eligible for a Vehicle Electronic Control Unit \(VECU3\) software update.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11030933-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11030933-9999.pdf)

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

## Vehicles listed

- 2024 to 2026 KENWORTH T680
- 2024 to 2026 KENWORTH T880
- 2024 to 2026 PETERBILT 567
- 2024 to 2026 PETERBILT 579
- 2024 to 2026 PETERBILT 589

JSON: [/v1/bulletins/11030933](/v1/bulletins/11030933)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20campaign%2037-004&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11030933&vehicle=Service%20campaign%2037-004)