Subaru bulletin WRG-26R
What it says(Subaru) has initiated a safety recall for certain 2026 model year Solterra vehicles to update the software of the battery ECU. NHTSA’s full summary ↓
Subaru filed this with NHTSA as a service bulletin dated Aug 20, 2026, received Jul 2, 2026, about the electrical system — 2 documents under this number. It names 1 model year (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 communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
Subaru of America, Inc. (Subaru) has initiated a safety recall for certain 2026 model year Solterra vehicles to update the software of the battery ECU. (This is an revised version of the original bulletin.)
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| WRG-26R | Service bulletin | Aug 20, 2026 | 11036812 | PDF, 2,815 KB |
| WRG-26R | Service bulletin | Jun 30, 2026 | 11034263 | PDF, 1,698 KB |
What the document itself lists
The manufacturer titles it “Battery ECU Reprogramming”.
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 100130 | — | 0.7 hrs |
Read by machine from the document NHTSA serves (11 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 themA 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 1 model year this bulletin names have filed 18 complaints with NHTSA since 2015. 10 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 2026 Subaru Solterra displays a 12V "Low Battery, Turn Power OFF" warning during DC fast charging, remote preconditioning/app-based remote start, and accessory mode. The underlying failed component or cause is UNKNOWN. I do not know whether this reflects an actual battery problem or an incorrect warning.
2026 Subaru Solterra · Electrical System · filed with NHTSA Oct 27, 2026 · ODI 11774078
The contact owns a 2026 Subaru Solterra. The contact received notification of NHTSA Campaign Number: 26V393000 (Electrical System); however, the part to do the recall repair was not yet available. The vehicle was taken to the dealer. The vehicle was not diagnosed or repaired.
2026 Subaru Solterra · Electrical System · filed with NHTSA Sep 1, 2026 · ODI 11761277
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 group45 other manufacturer communications filed against the Subaru Solterra 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… |
| 15-341-26 | Service bulletin | Aug 20, 2026 | This Bulletin provides best practices for troubleshooting and resolving Subaru Connect telematics concerns on 2026MY Solterra, Trailseeker… |
| 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… |
| 19-04-26 | Service bulletin | Aug 14, 2026 | This Bulletin provided diagnostic procedure information to be followed when addressing Dark Current / Parasitic Draw concerns on Subaru EV v… |
| 15-309-23R | Service bulletin | Aug 13, 2026 | This Service Information Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of… |
| 19-03-26 | Service bulletin | Aug 5, 2026 | This bulletin announces the availability of reprogramming files for the Plug-in Control Module and the High Level Communication Module. |
| 15-334-25R | Service bulletin | Jul 28, 2026 | This Bulletin outlines the diagnostic procedures to be followed when identifying dark current/parasitic draw concerns caused by third-party… |
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 WRG-26R 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 WRG-26R 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 WRG-26R cover?
The manufacturer filed it against 1 model year: 2026 Subaru Solterra. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: 2026 Solterra: built 17 Sep 2025 – 13 Apr 2026 — the build date is on the certification label in the driver’s door jamb.