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Service bulletin KSB-221025 V3

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 id10237371
Published by NHTSA2023-06-06
Manufacturer's numberKSB-221025 V3
Manufacturer's date2023-06-05
NHTSA componentEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

NHTSA's summary

Revised repair instructions for KSB-221025 - This process describes how to inspect and add an End of Line Resistor (EOL) to the In-Command system that may be exhibiting erratic readings on HVAC and/or lose communication with components. It has been determined the vehicles in this KSB population may have been manufactured without the EOL resistor in the “Gateway” located in the Roof A/C.

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, Labels and manuals

Vehicles listed
KEYSTONE ALPINE2021 to 2023
KEYSTONE COUGAR2021 to 2023
KEYSTONE MONTANA2021 to 2023
KEYSTONE RAPTOR2021 to 2023

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