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Service bulletin 985485

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 id603284
Published by NHTSA1999-02-16
Manufacturer's number985485
Manufacturer's date1998-09-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

GENERAL INFORMATION ON OPTIMIZED IDLE LOW VOLTAGE RUN TIME. *YC

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

Engine

Vehicles listed
FREIGHTLINER BUSINESS CLASS
FREIGHTLINER CARGO
FREIGHTLINER CENTURY
FREIGHTLINER COE
FREIGHTLINER CONVENTIONAL
FREIGHTLINER FLA
FREIGHTLINER FLB
FREIGHTLINER FLC-112
FREIGHTLINER FLD

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