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Service bulletin TechTalk5564

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 id10183389
Published by NHTSA2020-12-02
Manufacturer's numberTechTalk5564
Manufacturer's date2020-11-04
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING

NHTSA's summary

Tech Talk discussion on Unique fan issue after VCU replacement.

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

Engine, Equipment and accessories

Vehicles listed
FREIGHTLINER BUSINESS CLASS M22007

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