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Service bulletin KSB-210218

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 id10187442
Published by NHTSA2021-02-25
Manufacturer's numberKSB-210218
Manufacturer's date2021-02-24
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; STRUCTURE

NHTSA's summary

This is the inspection instructions for KSB-210218, Inspection Process Sidewall Cracks. The information and instructions in a Keystone Service Bulletin (KSB) are intended to inform RV dealership Service Managers/Technicians of situations that may occur with some Recreational vehicles so dealership personnel can perform proper and efficient service. KSB’s are intended to be used by trained RV technicians with the knowledge, tools and equipment to do the job properly and safely, not “do-it-yourselfers”. Inspection information is not presented as a repair guaranteed to be covered by warranty. Keystone’s P & P (Policy & Procedures) must be followed for any requested warranty work. Do not assume this inspection is covered by warranty. Not every unit requires a repair. This process describes the inspection of sidewall cracks and separation forward of the front slideouts to determine if there is a defect and what repair may need to be performed.

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

Body and frame, Equipment and accessories

Vehicles listed
DUTCHMEN VOLTAGE2018 to 2021
KEYSTONE ALPINE2018 to 2021
KEYSTONE FUZION2018 to 2021
KEYSTONE MONTANA2018 to 2021
KEYSTONE RAPTOR2018 to 2021

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