# Service bulletin CBR 2449 202503

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: 11016368
- Published by NHTSA: 2025\-04\-02
- Manufacturer's number: CBR 2449 202503
- Manufacturer's date: 2025\-03\-12
- NHTSA component: ENGINE; FUEL/PROPULSION SYSTEM

## NHTSA's summary

CBR \- Vertical Exhaust Aftertreatment System \(EATS\) Catalyst Cracking \-Trucks Equipped With a Cummins 12LCompressed Natural Gas \(CNG\) Engine

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016368-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11016368-9999.pdf)

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

## Components

Engine, Fuel system

## Vehicles listed

- 2014 to 2025 VOLVO VN

JSON: [/v1/bulletins/11016368](/v1/bulletins/11016368)

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