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Service bulletin WB23-J-001

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 id10233455
Published by NHTSA2023-04-03
Manufacturer's numberWB23-J-001
Manufacturer's date2023-03-01
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This bulletin describes certain additional requirements when submitting a warranty claim for radiator leaks (Labor Operation Codes J3080, J3100, and J1840) on 2022MY - current Isuzu F-Series vehicles.

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

Engine

Vehicles listed
ISUZU F-SERIES2022 to 2023

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