Subaru bulletin 15-337-26
What it saysThis bulletin announces the design change made to the front speaker assembly which have been redesigned with higher durability damper. NHTSA’s full summary ↓
Subaru filed this with NHTSA as a service bulletin dated Apr 30, 2026, received May 4, 2026, about the electrical system. It names 11 model years (2016–2026). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis bulletin announces the design change made to the front speaker assembly which have been redesigned with higher durability damper. This change was introduced to prevent internal interference of the front speaker.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 15-337-26 | Service bulletin | Apr 30, 2026 | 11032044 | PDF, 1,270 KB |
What the document itself lists
The manufacturer titles it “Front Speaker Design Change”.
Part the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 86301CA101 | SPEAKER ASSEMBLY-FRONT | — | eBay Motors → |
Read by machine from the document NHTSA serves (2 pages), read Sep 29, 2026. A part number is shown only where it matches Subaru’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2021 Subaru BRZ.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 10 model years this bulletin names have filed 28 complaints with NHTSA since 2015. 1 of them name Electrical System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
My Brz is experiencing battery drain issues. I have replaced the battery with an OEM battery from Subaru, but my car still has a drain on the battery. I had to purchase a portable jump starter kit to ensure that if the car didn't start that I had a jump available. I have not brought the car in for service as of now.
2016 Subaru BRZ · Electrical System · filed with NHTSA May 15, 2021 · ODI 11416718
The stock head unit (Model #: CA645UL) in my vehicle has been having Bluetooth issues. Every since I purchased the vehicle in 2016, from time to time, the audio from my Bluetooth would cut out and then come back on. It was only once in a blue moon ever since I bought the car, so I never paid much attention to it.
2017 Subaru BRZ · Electrical System · filed with NHTSA Dec 15, 2024 · ODI 11630784
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the electrical system
Source: same model, same component group35 other manufacturer communications filed against the Subaru BRZ under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Subaru list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 15-333-25R | Service bulletin | Sep 14, 2026 | This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure… |
| 15-304-22R | Service bulletin | Sep 14, 2026 | This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concern… |
| 15-308-23R | Service bulletin | Aug 20, 2026 | This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw (dark/standby current) in vehicles experienc… |
| 15-246-19R | Service bulletin | Jun 30, 2026 | This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the all-new 20… |
| 01-167-08R | Service bulletin | May 18, 2026 | This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models. |
| 07-240-26R | Service bulletin | Apr 30, 2026 | This Service Information Bulletin was developed to provide interim guidance for 2026 model year vehicles exhibiting DTC B2A20 with gen 4 Tel… |
| 10-105-25R | Service bulletin | Mar 26, 2026 | "This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulti… |
| 15-219-18R | Service bulletin | Mar 16, 2026 | When attempting to complete the STARLINK Telematics subscription process, an Error Code 202 and / or 204 may occur preventing the process fr… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Subaru, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Subaru 15-337-26 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the 15-337-26 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Subaru warranty extension on file lists the ones Subaru has filed.
Which vehicles does 15-337-26 cover?
The manufacturer filed it against 11 model years: 2026 Subaru BRZ, 2025 Subaru BRZ, 2024 Subaru BRZ, 2023 Subaru BRZ, 2022 Subaru BRZ, 2020 Subaru BRZ and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.