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Service bulletin SF578

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 id10163476
Published by NHTSA2019-08-05
Manufacturer's numberSF578
Manufacturer's date2019-06-12
NHTSA componentELECTRICAL SYSTEM:WIRING

NHTSA's summary

Forward Chassis Wiring Harness

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, Wiring and fuses

Vehicles listed
FREIGHTLINER CASCADIA2017, 2018, 2019

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

Other bulletins for the same vehicles and component
CALHIGHCURRENT2020-03-03. Service bulletin. Customer Advisory Letter that an inspection to determine if the high current breaker has been bypassed.
17TS-12REV2020-01-03. Service bulletin. Technical Service Letter for GHG17 Heavy Duty Engine Platform 1-BOX Aftertreatment System (ATS) Wire Harness experiencing chaffing caused by vibration and dirt collecting in the harness conduit.
ICI19-030 SF5782019-08-05. Service bulletin. SF578 - Revised Bulletin
fp540762019-04-08. Service bulletin. Technical Bulletin fp54076 Commodity Harness Ordering
sb26522018-06-18. Service bulletin. sb2652 DT12 PTO UpfitB
fp540312018-06-18. Service bulletin. fp54031 Ordering Service Wiring Harnesses for Cascadia
14CSA222017-11-17. Service bulletin. 14CSA22 DTNA Chassis Wiring Diagrams
54-2642016-09-08. Service bulletin. CASCADIA VIRTUAL TECHNICIAN RETROFIT