WenmarOpen by Wenmar Pro

Service bulletin 18-226-21

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 id10219487
Published by NHTSA2022-09-08
Manufacturer's number18-226-21
Manufacturer's date2022-08-22
NHTSA componentEQUIPMENT

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

Equipment and accessories

Vehicles listed
SUBARU BRZ2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
SUBARU BRZ2022

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

Recalls for the same vehicles and component
12V2540002012-06-05. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

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
15-270-20R2024-05-02. Service bulletin. This bulletin provides instruction for use of a new reprogramming procedure to optimize the Denso Gen 4 Audio and Navigation system utilized in the models listed.
15-297-22R2024-05-02. Service bulletin. The following information announces reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4 Denso CP1 Audio and Navigation head units utilized in the models listed.
15-256-19R2024-04-03. Service bulletin. This bulletin provides information on a new reprogramming procedure (FOTA) to optimize the Harman Gen 3.1 Audio and Navigation head units (H/U) utilized in the models as listed.
15-236-18R2024-04-03. Service bulletin. This bulletin addresses the reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units utilized in the models as listed.
15-242-19R2024-04-03. Service bulletin. This bulletin has been developed for use as a quick reference tool to aid in diagnosing operational concerns of the Gen 2 Telematics system’s remote access features.
15-219-18R2024-04-03. Service bulletin. This bulletin addresses an error code 202 and or 204 when attempting to complete the STARLINK telematics subsription process.
15-256-19R2024-02-02. Service bulletin. This bulletin provides information on a new reprogramming procedure (FOTA) to optimize the Harman Gen 3.1 Audio and Navigation head units (H/U) utilized in the models as listed.
15-246-19R2024-02-02. Service bulletin. This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs.
WRM-232024-01-03. Service bulletin. Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2022 model year BRZ vehicles.
15-236-18R2024-01-03. Service bulletin. The following information addresses reprogramming file availability and a software update installation procedure to provide optimization to the new Harman Gen 3.1 Audio and Navigation head units utilized in the models as listed.