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Service bulletin 16-NA-317

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 id10118963
Published by NHTSA2017-10-15
Manufacturer's number16-NA-317
Manufacturer's date2016-09-22
NHTSA componentSERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:WHEEL CYLINDERS

NHTSA's summary

This informational bulletin provides information on the proper ways to remove or replace the key cylinder covers due to some vehicles having the key cylinders hidden during the time of delivery.

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

Brakes, Brake drums and shoes

Vehicles listed
BUICK ENCORE2013, 2014, 2015, 2016
CADILLAC ATS2014, 2015, 2016, 2017
CADILLAC CT62016
CADILLAC CT6 PLUG-IN HYBRID2017 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC CTS2014, 2015, 2016, 2017
CADILLAC XT52017
CADILLAC XTS2016, 2017
CHEVROLET CAMARO2016, 2017
CHEVROLET IMPALA2014, 2015, 2016, 2017
CHEVROLET MALIBU2016, 2017
CHEVROLET TRAX2013, 2014, 2015, 2016
CHEVROLET VOLT2017
GMC ACADIA2017

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