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Service bulletin P7-146

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 id10164607
Published by NHTSA2019-09-09
Manufacturer's numberP7-146
Manufacturer's date2018-09-20
NHTSA componentEXTERIOR LIGHTING; STRUCTURE; VISIBILITY

NHTSA's summary

This Procedure outlines the steps to improve upper-marker light weather sealing by replacing the existing well-nuts and installing new gaskets on model year 2018-2019 J4500 model coaches.

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, Glass, wipers and mirrors, Lighting

Vehicles listed
MCI J45002018 to 2019

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