# 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.

- Type: Service bulletin
- NHTSA id: 11026057
- Published by NHTSA: 2025\-12\-03
- Manufacturer's number: 167\-T2512\-1
- Manufacturer's date: 2025\-11\-11
- NHTSA component: ELECTRICAL SYSTEM; ENGINE
- Manufacturer's system: ECU 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11026057-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11026057-9999.pdf)

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

## Components

Electrical system, Engine

## Vehicles listed

- 2018 to 2020 HINO CAB\-OVER
- 2018 to 2021 HINO CONVENTIONAL MODELS

JSON: [/v1/bulletins/11026057](/v1/bulletins/11026057)

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