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Service bulletin SB54-48

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 id10197278
Published by NHTSA2021-06-14
Manufacturer's numberSB54-48
Manufacturer's date2016-02-01
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Guidelines for Repairing or Replacing an Electrical Harness. Use the guidelines in this bulletin to determine if a damaged electrical harness should be repaired or replaced.

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

Vehicles listed
FREIGHTLINER FREIGHTLINER

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