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Service bulletin SIL4-EP-15ENREVB

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 id10084921
Published by NHTSA2016-11-28
Manufacturer's numberSIL4-EP-15ENREVB
Manufacturer's date2016-09-16
NHTSA componentPOWER TRAIN; EQUIPMENT

NHTSA's summary

ANNOUNCES THE AVAILABILITY OF THE PASSIVE DISCHARGE RESISTOR AS A SERVICE PART. THE COMMUNICATIONS ALSO CONTAINS INSTRUCTIONS FOR REPLACING THE PASSIVE DISCHARGE RESISTOR ASSEMBLY INSIDE THE DUAL POWER INVERTER MODULE 2 (DPIM2).

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

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.