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Service bulletin FL-646-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 id10055465
Published by NHTSA2014-05-29
Manufacturer's numberFL-646-A
Manufacturer's date2014-03-01
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

FREIGHTLINER: AN IMPROPERLY FUNCTIONING ON BOARD EMISSION RELATED DIAGNOSTIC SYSTEM IS ON SOME BUS CHASSIS AND IS EMITTING EXCESSIVE POLLUTANTS, VIOLATING FEDERAL EMISSION STANDARDS AND MALFUNCTION INDICATOR LAMP (MIL) FAILS TO ILLUMINATE. MODEL 2013 B2, S2. *PE

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 FREIGHTLINER2004

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