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Service bulletin S2123000009 Rev.

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 id10188756
Published by NHTSA2021-03-15
Manufacturer's numberS2123000009 Rev.
Manufacturer's date2021-02-15
NHTSA componentSTRUCTURE:BODY; EXTERIOR LIGHTING:BRAKE LIGHTS

NHTSA's summary

Water is leaking into cab through the third brake light CHMSL

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, Lighting, Brake lights

Vehicles listed
RAM 15002019, 2020, 2021

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