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Service bulletin 400538

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 id10121635
Published by NHTSA2017-10-31
Manufacturer's number400538
Manufacturer's date2017-10-27
NHTSA componentELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR; ELECTRICAL SYSTEM

NHTSA's summary

The PrecPlex Energy Management System (EMS) may not properly recognize the output status of the Generator. If the Generator status does not properly recognized the EMS, it may not properly discharge electrical demand based on Generator output.

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, Alternator

Vehicles listed
FOREST RIVER BERKSHIRE2018
LEGACY SR LSA340BH-3402018
LEGACY SR LSA34A-3402018
LEGACY SR LSA360RB-3402018
LEGACY SR LSA38C-3402018

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