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Service bulletin TechTalk566534K

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 id10191857
Published by NHTSA2021-05-07
Manufacturer's numberTechTalk566534K
Manufacturer's date2021-04-28
NHTSA componentVISIBILITY

NHTSA's summary

Tech Talk discussion on Air line Coding and location in manual.

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

Glass, wipers and mirrors

Vehicles listed
FREIGHTLINER M22021

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

Recalls for the same vehicles and component
23V2370002023-04-04. VISIBILITY:WINDSHIELD WIPER/WASHER:LINKAGES

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
FAB2112021-05-19. Service bulletin. Freightliner Action Bulletin FAB211 Mounting for Rear View Monitor