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Service bulletin 18NA045

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 id10137329
Published by NHTSA2018-05-21
Manufacturer's number18NA045
Manufacturer's date2018-02-08
NHTSA componentEXTERIOR LIGHTING:TAIL LIGHTS; ELECTRICAL SYSTEM

NHTSA's summary

This technical bulletin provides a procedure to install a pigtail harness to correct the rear tail lights from flashing fast when hot.

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

Electrical system, Lighting, Tail lights

Vehicles listed
CADILLAC XTS2013, 2014, 2015, 2016, 2017

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