# Service bulletin SM2401

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: 10249944
- Published by NHTSA: 2024\-02\-09
- Manufacturer's number: SM2401
- Manufacturer's date: 2024\-02\-09
- NHTSA component: ENGINE AND ENGINE COOLING; POWER TRAIN

## NHTSA's summary

SM2401: 7.3L / 6R140 Fluid Cross Contamination Issue: Coolant and Transmission Fluid Cross Contamination Corrective Action: Outline in the SM2401 Service Memorandum Instructions, per SM2401 Flowchart.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10249944-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10249944-9999.pdf)

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

## Components

Engine, Transmission and driveline

## Vehicles listed

- 2025 BLUE BIRD VISION SCHOOL BUS
- 2025 BLUE BIRD VISION TRANSIT BUS

JSON: [/v1/bulletins/10249944](/v1/bulletins/10249944)

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