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Service bulletin 8374

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 id607347
Published by NHTSA1999-09-21
Manufacturer's number8374
Manufacturer's date1999-06-01
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

SUBJECT REGARDING BINARY SWITCH RETROFIT FOR VARIOUS VEHICLES. *TT

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

Electrical system

Vehicles listed
FREIGHTLINER BUSINESS CLASS
FREIGHTLINER FLB
FREIGHTLINER FLD

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