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Service bulletin 18-198-20

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 id10173027
Published by NHTSA2020-04-02
Manufacturer's number18-198-20
Manufacturer's date2020-03-03
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

NHTSA's summary

The purpose of this bulletin is to provide a description of current changes to Service Manuals available via the Subaru Technical Information System (STIS) web site.

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, Equipment and accessories

Vehicles listed
SUBARU ASCENT2019, 2020
SUBARU BRZ2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
SUBARU FORESTER2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
SUBARU LEGACY2007, 2008, 2009, 2010, 2011
SUBARU LEGACY2015, 2016, 2017, 2018, 2019, 2020
SUBARU OUTBACK2007, 2008, 2009, 2010, 2011
SUBARU OUTBACK2015, 2016, 2017, 2018, 2019, 2020

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

Recalls for the same vehicles and component
26V4360002026-07-07. EQUIPMENT:OTHER:LABELS
20227032022-12-08. Electrical
22V9070002022-12-08. ELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH
20196042019-12-02. Engine
19V8560002019-12-02. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)
20195362019-10-25. Accessories
20191912019-04-18. Electrical
19V2970002019-04-11. ELECTRICAL SYSTEM:IGNITION:SWITCH
20186062018-11-02. Engine
18V7730002018-11-01. ELECTRICAL SYSTEM:SOFTWARE; FUEL SYSTEM, GASOLINE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
09-141-262026-10-05. Service bulletin. This Bulletin provides a diagnostic procedure for customer concerns about hesitation, reduced acceleration, or lack of power when driving uphill or under heavy engine load.
07-244-262026-10-05. Service bulletin. This Bulletin provides a repair procedure for increased dark current and unintended battery discharge that occurs in a small number of unique cases.
SubaruNet Announcement (M2026-10-05. Other. This announcement provides information on a new software update for the Midtronics Dss and DCA machines.
SubaruNet Announcement (T2026-10-05. Other. This announcement provides information on an enhancement of the TechShare CVT diagnostic assitance application.
18-244-262026-10-05. Service bulletin. "This Bulletin announces additional troubleshooting steps for the following DTCs: DTC C1956: RH Actuator Circuit DTC C1957: LH Actuator Circuit"
09-84-22R2026-10-05. Service bulletin. This bulletin announces Warranty Extension and design changes made to the front exhaust pipe and covers to address the concerns of some customers regarding an odor or a rattle-type noise/fluttering sound coming from the undercarriage, during acceleration. This is an revised version of the original bulletin.
15-333-25R2026-10-05. Service bulletin. This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure. This is an revised version of the original bulletin.
15-322-25R2026-10-05. Service bulletin. In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the CP1 & Gen 3.1 Head Unit used in the listed models and model years to (8) eight years / 150,000 miles to cover certain qualifying repairs to the infotainment audio system. This is an revised version of the original bulletin.
15-304-22R2026-10-05. Service bulletin. This bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concerns. This is an revised version of the original bulletin.
12-269-25R2026-10-05. Service bulletin. This bulletin announces the service procedures to be followed when encountering instances of water intrusion from the sunroof area.This is an revised version of the original bulletin.