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Service bulletin SB23-J-002

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 id10243649
Published by NHTSA2023-10-06
Manufacturer's numberSB23-J-002
Manufacturer's date2023-09-05
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

GASOLINE ENGINE 6.0L. The vehicle’s Check Engine Malfunction Indicator Lamp (MIL) may illuminate with DTCs SPN 4240 FMI 10 (O2 Sensor Slow Response Bank 1 Sensor 1) and/or SPN 4241 FMI 10 (O2 Sensor Slow Response Bank 2 Sensor 1) set in the Engine Control Module (ECM). If either, or both, of the preceding DTCs are present, follow the service procedure provided in this bulletin to diagnose and repair the concern.

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 N-SERIES2022

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