# Service bulletin SB\_654

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: 10248700
- Published by NHTSA: 2024\-01\-13
- Manufacturer's number: SB\_654
- Manufacturer's date: 2023\-12\-19
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING

## NHTSA's summary

Detroit recently released an ACM software update v7.61.2.0 to address high occurrences of Selective Catalyst Reduction Closed Loop Control at Maximum Limit faults on Pierce apparatus with MY2016 – 2022 Detroit engines. The updated software includes improvements for three fault codes.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10248700-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10248700-9999.pdf)

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

## Components

Engine, Exhaust and emissions, Catalytic converter

## Vehicles listed

- 2016 to 2022 PIERCE ARROW XT
- 2016 to 2018 PIERCE COMMERCIAL
- 2016 to 2020 PIERCE DASH
- 2016 to 2022 PIERCE DASH CF
- 2016 to 2022 PIERCE ENFORCER
- 2022 PIERCE F550
- 2016 to 2018 PIERCE FREIGHTLINER
- 2020 to 2022 PIERCE FREIGHTLINER
- 2016 to 2022 PIERCE IMPEL
- 2020 to 2022 PIERCE INTERNATIONAL
- 2016 to 2022 PIERCE LADDER AND PLATFORM
- 2022 PIERCE M2\-106
- 2022 PIERCE M2\-112
- 2016 PIERCE PUMPER
- 2019 PIERCE PUMPER
- 2016 to 2022 PIERCE QUANTUM
- 2016 to 2022 PIERCE SABER
- 2016 PIERCE TANKER
- 2019 PIERCE TANKER
- 2016 to 2022 PIERCE VELOCITY

JSON: [/v1/bulletins/10248700](/v1/bulletins/10248700)

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