# Emissions M0307 EC0033 202606

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: 11034125
- Published by NHTSA: 2026\-06\-29
- Manufacturer's number: M0307 EC0033 202606
- Manufacturer's date: 2026\-06\-02
- NHTSA component: ENGINE

## NHTSA's summary

Volvo Trucks has determined that certain vehicles equipped with a model year \(“MY”\) 2017\-2018 13L Turbo Compound \(TC\) engine may not meet California and Federal Regulations \(CARB\). This Recall is for updated software that will reduce the amount of time necessary for the system to operate in a cold engine warm\-up strategy and provide health monitoring of the Selective Catalyst Reduction \(SCR\).

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034125-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034125-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2018 to 2019 VOLVO VAH
- 2018 to 2019 VOLVO VHD
- 2018 to 2019 VOLVO VN

JSON: [/v1/bulletins/11034125](/v1/bulletins/11034125)

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