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Service bulletin INC 20-021

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 id10177430
Published by NHTSA2020-07-24
Manufacturer's numberINC 20-021
Manufacturer's date2020-07-22
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

Informational Communication Notice (INC) How to reset Firefly communication system for HVAC

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

Equipment and accessories, Heating and air conditioning

Vehicles listed
ENTEGRA ANTHEM2017 to 2021
ENTEGRA ASPIRE2017 to 2021
ENTEGRA CORNERSTONE2017 to 2021

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