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Service bulletin V-321-001 202412

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11012176
Published by NHTSA2025-01-02
Manufacturer's numberV-321-001 202412
Manufacturer's date2024-12-01
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Volvo Trucks has identified that some VN model vehicles equipped with auxiliary power unit batteries may experience insufficient battery system charging. This could lead to early battery failure and improper functioning of the auxiliary power systems. Follow the instructions in the attached document to upgrade the charging system.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
VOLVO VAH2021 to 2024
VOLVO VHD2021 to 2024
VOLVO VN2021 to 2024

Listing a model year does not mean every vehicle of it is concerned: the document says which.