WenmarOpen by Wenmar Pro

Service bulletin TT7473EN

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10155493
Published by NHTSA2019-04-01
Manufacturer's numberTT7473EN
Manufacturer's date2014-04-25
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Tech Tip concerning Freightliner Chassis Power Distribution Module (PDM) Electrical System Failures

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
ALLISON 1000 SERIES TRANSMISSION
ALLISON 2000 SERIES TRANSMISSION
ALLISON 3000 SERIES TRANSMISSION
ALLISON 4000 SERIES TRANSMISSION

Listing a model year does not mean every vehicle of it is concerned: the document says which.