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Service bulletin 16NA336

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 id10135272
Published by NHTSA2018-05-07
Manufacturer's number16NA336
Manufacturer's date2016-10-04
NHTSA componentSERVICE BRAKES, HYDRAULIC:FLUID

NHTSA's summary

This technical bulletin provides a procedure to replace the rear brake caliper and the rear park brake actuator to correct a condition of the rear park brake may not release and/or the service park brake message displayed due to a rear brake caliper internally leaking brake fluid past the seal and onto the rear park brake actuator.

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 fluid

Vehicles listed
BUICK ENVISION2016, 2017

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