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Service bulletin GCUS-3-830

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 id10113366
Published by NHTSA2017-08-15
Manufacturer's numberGCUS-3-830
Manufacturer's date2017-02-01
NHTSA componentEXTERIOR LIGHTING:TAIL LIGHTS

NHTSA's summary

53530 - Service Update Bulletin. Certain vehicles may have a condition in which either left side, right side, or both tail lamps could develop cracks near a locator pin on the bottom surface of the tail lamp housing due to the type of lubricant that was used. Cracks could allow water to wick into the housing, appearing as moisture on the inside of the lens. Dealers will replace both tail lamps, using an approved lubricant, and water test.

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

Lighting, Tail lights

Vehicles listed
BUICK REGAL2016

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