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Service bulletin SC-20-061

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 id10177136
Published by NHTSA2020-07-08
Manufacturer's numberSC-20-061
Manufacturer's date2020-06-01
NHTSA componentVISIBILITY:GLASS, SIDE/REAR; VISIBILITY; EQUIPMENT; STRUCTURE; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

This retrofit replaces the shims on the side windows to obtain an improved portal seal to prevent leakage.

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, Glass, wipers and mirrors

Vehicles listed
PROTERRA CATALYST2019

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