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Service bulletin 16-NA-366

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 id10137975
Published by NHTSA2018-05-21
Manufacturer's number16-NA-366
Manufacturer's date2016-11-07
NHTSA componentSERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS; EQUIPMENT

NHTSA's summary

This technical bulletin provides a procedure to replace the brake booster vacuum pump and hose assembly if contamination is found in the vacuum sensor and check valve.

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, Equipment and accessories, Brake hoses and lines

Vehicles listed
BUICK ENCORE2014, 2015, 2016

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