# Service bulletin SB\_686.1

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: 11001524
- Published by NHTSA: 2024\-06\-11
- Manufacturer's number: SB\_686.1
- Manufacturer's date: 2024\-05\-23
- NHTSA component: ENGINE

## NHTSA's summary

The U17F0 code only appears in DAVIE 4 after the engine has run after a software update. It does not activate a check engine light or cause any change to the engine performance. A Pierce module update is available that will ensure that this code will no longer appear.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11001524-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11001524-9999.pdf)

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

## Components

Engine

## Trouble codes named

U17F0

## Vehicles listed

- 2022 FRONTLINE VELOCITY
- 2021 to 2023 PIERCE ARROW XT
- 2023 PIERCE COMMERCIAL
- 2021 to 2022 PIERCE DASH CF
- 2021 to 2023 PIERCE ENFORCER
- 2021 to 2023 PIERCE FREIGHTLINER
- 2021 to 2023 PIERCE IMPEL
- 2021 to 2023 PIERCE INTERNATIONAL
- 2021 to 2022 PIERCE LADDER AND PLATFORM
- 2021 to 2023 PIERCE QUANTUM
- 2021 to 2023 PIERCE SABER
- 2021 to 2023 PIERCE VELOCITY

JSON: [/v1/bulletins/11001524](/v1/bulletins/11001524)

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