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Service bulletin 19NA236

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 id10168196
Published by NHTSA2019-11-25
Manufacturer's number19NA236
Manufacturer's date2019-10-22
NHTSA componentVISIBILITY:POWER WINDOW DEVICES AND CONTROLS

NHTSA's summary

This technical bulletin provides a procedure for apply M-77 Paste to the clock spring windings to eliminate a bind and/or clunking noise.

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

Glass, wipers and mirrors, Power windows

Vehicles listed
CHEVROLET EXPRESS2018, 2019, 2020
GMC SAVANA2018, 2019, 2020

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

Other bulletins for the same vehicles and component
19NA2362020-11-30. Service bulletin. This technical bulletin provides a procedure for apply M-77 Paste to the clock spring windings to eliminate a bind and/or clunking noise.
PIE04452018-06-04. Service bulletin. This engineering informational bulletin is requesting information from the field on vehicles that have the condition of Drivers Door Window Glass Out of Channel and/or Inoperative.
16NA0752018-06-04. Service bulletin. This Bulletin provides procedures to correct a condition of Power Foldaway Mirror Glass Shake, Flutter at Normal Driving Speeds