Service bulletin 16-NA-187

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)
Type	Service bulletin
NHTSA id	10082007
Published by NHTSA	2016-10-11
Manufacturer's number	16-NA-187
Manufacturer's date	2016-06-10
NHTSA component	ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM

NHTSA's summary

THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE KEYLESS ENTRY CONTROL MODULE DUE TO AN INTERNAL SOFTWARE CALIBRATION CAUSING A LOW BATTERY DUE TO THE LOCK AND UNLOCK LIGHTS FLASHING INTERMITTENTLY.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, 12-volt battery, Software

Vehicles listed
CADILLAC CT6	2016

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

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