# Service bulletin KC\-478

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: 10207633
- Published by NHTSA: 2022\-02\-04
- Manufacturer's number: KC\-478
- Manufacturer's date: 2022\-01\-26
- NHTSA component: ENGINE AND ENGINE COOLING; EQUIPMENT

## NHTSA's summary

Variable Geometry Turbocharger \( VGT \) Function Test \( 2551\-08\-03\-02 \), OBD13 Model Year \( MY \) 2014 And Newer

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10207633-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10207633-9999.pdf)

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

## Components

Engine, Equipment and accessories

## Vehicles listed

- 2014 to 2022 VOLVO VAH
- 2014 to 2022 VOLVO VHD
- 2014 to 2022 VOLVO VN
- 2014 to 2022 VOLVO VNL
- 2014 to 2021 VOLVO VNM
- 2017 to 2022 VOLVO VNR
- 2014 to 2021 VOLVO VNX
- 2014 to 2016 VOLVO VT

JSON: [/v1/bulletins/10207633](/v1/bulletins/10207633)

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