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Service bulletin TSB 20-02

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 id10172132
Published by NHTSA2020-03-06
Manufacturer's numberTSB 20-02
Manufacturer's date2020-02-06
NHTSA componentSTRUCTURE

NHTSA's summary

A topcoat sealant was provided by our vendor that did not meet Thor Motor Coach's standard for performance. This was used on 2019 & 2020 Magnitude and Omni Motorhomes. If the primary sealant does not provide sufficient coverage, the cabover window may experience water intrusion. The repair will be to remove the existing topcoat sealant and apply the proper urethane sealant.

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

Vehicles listed
THOR MOTOR COACH MAGNITUDE2019 to 2020
THOR MOTOR COACH OMNI2019 to 2020

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