# Service bulletin TSB260021

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: 11038214
- Published by NHTSA: 2026\-10\-06
- Manufacturer's number: TSB260021
- Manufacturer's date: 2026\-09\-17
- NHTSA component: FUEL/PROPULSION SYSTEM

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution steps for the battery electric system which may experience Controller Area Network \(CAN \) communication issues from false occurrences of Pack Management Unit \(PMU\) modules, resulting in System Control Module \(SCM\) fault codes 11412, 11413 or 11414 being set. This is an update to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11038214-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11038214-9999.pdf)

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

## Components

Fuel system

## Vehicles listed

- CUMMINS BES

JSON: [/v1/bulletins/11038214](/v1/bulletins/11038214)

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