# Service bulletin SB 406

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: 10119156
- Published by NHTSA: 2017\-10\-15
- Manufacturer's number: SB 406
- Manufacturer's date: 2014\-03\-15
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION

## NHTSA's summary

This Service Bulletin informs affected customers that coaches equipped with Allison Transmissions, may experience water migration into the transmission connector and harness, resulting in transmission codes as a result of corrosion or the potential of transmission failure on model year 2014 MCI J4500 coaches, and that MCI will remedy the affected coaches at no cost to the customers.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10119156-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10119156-0001.pdf)

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

## Components

Transmission and driveline, Automatic transmission

## Vehicles listed

- 2014 MCI J4500

JSON: [/v1/bulletins/10119156](/v1/bulletins/10119156)

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