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Service bulletin 11-187-18

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 id10153624
Published by NHTSA2019-02-25
Manufacturer's number11-187-18
Manufacturer's date2018-12-21
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM

NHTSA's summary

This bulletin announces reprogramming file availability to optimize the ECM and address isolated customer concerns of hesitation on acceleration. The new logic provides enhanced ignition timing control during Exhaust Gas Recirculation (EGR) operation.

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, Engine, Exhaust and emissions, Fuel system, EGR valve

Vehicles listed
SUBARU FORESTER2014, 2015, 2016, 2017, 2018

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