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Service bulletin 18NA017

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 id10139255
Published by NHTSA2018-06-04
Manufacturer's number18NA017
Manufacturer's date2018-01-19
NHTSA componentEXTERIOR LIGHTING:HEADLIGHTS

NHTSA's summary

This technical bulletin provides repair information to correct a customer concern of seeing the service headlamp leveling illuminated in the DIC.

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, Headlights

Vehicles listed
BUICK REGAL2018

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