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Service bulletin 167-T2512-1

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 id11026057
Published by NHTSA2025-12-03
Manufacturer's number167-T2512-1
Manufacturer's date2025-11-11
NHTSA componentELECTRICAL SYSTEM; ENGINE
Manufacturer's systemECU and DCU: ECU and DCU

NHTSA's summary

DO NOT REPROGRAM ECU or DCU FOR SUBJECT VEHICLES UNLESS RECALL AB5S0 or AB5R0 IS BEING PERFORMED Starting November 12, 2025, the Hino DX3 program will be updated to include new software versions for both the Engine Control Unit (ECU) and Doser Control Unit (DCU). These updates apply exclusively to vehicles eligible for the Emissions Modification (Recall) under campaign codes AB5S0 or AB5R0.

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, Engine

Vehicles listed
HINO CAB-OVER2018 to 2020
HINO CONVENTIONAL MODELS2018 to 2021

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