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Service bulletin WP19-023

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 id10169677
Published by NHTSA2020-01-02
Manufacturer's numberWP19-023
Manufacturer's date2020-01-02
NHTSA componentPOWER TRAIN; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

Warranty Policy letter announcing a handling fee on Allison transmission parts that are progressively damaged and replaced as a result of a warrantable DTNA failure.

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

Equipment and accessories, Transmission and driveline

Vehicles listed
ALLISON TRANSMISSION

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