# Emissions D26R1\-Bulletin

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: 11035524
- Published by NHTSA: 2026\-08\-03
- Manufacturer's number: D26R1\-Bulletin
- Manufacturer's date: 2026\-07\-13
- Campaign id or software version: D26R1
- NHTSA component: ENGINE

## NHTSA's summary

Emission recall for DD13 CARB 24 MCM Software Reprogramming

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035524-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11035524-9999.pdf)

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

## Components

Engine

## Vehicles listed

- DETROIT DIESEL DD13

JSON: [/v1/bulletins/11035524](/v1/bulletins/11035524)

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