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Service bulletin TechTalk566950

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 id10194883
Published by NHTSA2021-06-03
Manufacturer's numberTechTalk566950
Manufacturer's date2021-05-26
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

Tech Talk Discussion SPN 520981 FMI 5 HOOD TILT SWITCH CURRENT BELOW NORMAL OR OPEN CIRCUIT

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.

Vehicles listed
FREIGHTLINER CASCADIA2020

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