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Service bulletin 6-WT-17 Rev A

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 id10152815
Published by NHTSA2019-02-19
Manufacturer's number6-WT-17 Rev A
Manufacturer's date2019-01-25
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Announces release of remanufactured WTEC II Electronic Control Unit (ECU) and instructions when replacing the ECU

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 TRANSMISSION

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