# Other TT9472

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: Other
- NHTSA id: 11033454
- Published by NHTSA: 2026\-06\-04
- Manufacturer's number: TT9472
- Manufacturer's date: 2026\-05\-19
- NHTSA component: FUEL/PROPULSION SYSTEM
- Manufacturer's system: Transmission

## NHTSA's summary

Service tip when troubleshooting complaints of a fluid leak from the torque converter housing

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11033454-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11033454-9999.pdf)

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

## Components

Fuel system

## Vehicles listed

- ALLISON 1000 SERIES TRANSMISSION
- ALLISON 2000 SERIES TRANSMISSION

JSON: [/v1/bulletins/11033454](/v1/bulletins/11033454)

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