# Service bulletin SP21\-312

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: 10205940
- Published by NHTSA: 2022\-01\-04
- Manufacturer's number: SP21\-312
- Manufacturer's date: 2021\-12\-17
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

ENGINE CONTROL MODULE \(ECM\) SOFTWARE UPDATE On the vehicles affected by this bulletin, perform the engine software update 23958948.P01. Main software \& Dataset update: US OBD20 EMS VGT running change release to address OBD and conditional certification items

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10205940-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10205940-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2021 PREVOST X3 COM
- 2021 PREVOST X3\-45 COMMUTER

JSON: [/v1/bulletins/10205940](/v1/bulletins/10205940)

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