Subaru bulletin 05-98-26
What it saysThis bulletin announces the availability of new reprogramming files developed to address cases in which the following DTCs are detected by the Electric Control Damper Control Unit (ECU Damper). NHTSA’s full summary ↓
Subaru filed this with NHTSA as a service bulletin dated Jun 2, 2026, received Jul 1, 2026, about the electrical system. It names 5 model years (2022–2026). 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 availability of new reprogramming files developed to address cases in which the following DTCs are detected by the Electric Control Damper Control Unit (ECU Damper).
Trouble codes it names: C2922 C2923 C2924 C2925 C2926 C2927 C2928 C2929 all 8 read from the document itself; NHTSA’s summary names none
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 05-98-26 | Service bulletin | Jun 2, 2026 | 11034241 | PDF, 1,305 KB |
What the document itself lists
The manufacturer titles it “C2922, C2923, C2924, C2925,”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 20342VC010 | — | — | |
| 20342VC040 | — | — | |
| 20342VC050 | PAK FILE APPLICABILITY | — | eBay Motors → |
| 20342VC011 | ECU Damper | — | eBay Motors → |
| 20342VC041 | ECU Damper | — | eBay Motors → |
| 20342VC051 | ECU Damper | — | eBay Motors → |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| B566386 | UXN42; GSENSOR | 0.8 hrs |
Read by machine from the document NHTSA serves (6 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 5 model years this bulletin names have filed 52 complaints with NHTSA since 2015. 5 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.
I was driving normally, having started my car after leaving a store at the time, while backing up, I received an ad (depicted below) for the SiriusXM limited time offer. This advertisement completely blocked the entirety of the infotainment system, disabling the navigation components completely, disabling my ability to use the backup…
2025 Subaru WRX · Electrical System · filed with NHTSA Jun 4, 2026 · ODI 11742142
The car has randomly on multiple occasions failed to accelerate then jump forward hitting the rev limiter. This has happened while merging back into traffic including 55 mph roads creating concern for being rear ended and also concerns for hitting vehicles in front when the car jumps forward as there is no control over it.
2022 Subaru WRX · Electrical System · filed with NHTSA Jul 10, 2026 · ODI 11749460
Digital gauge cluster (speedometer, tachometer, fuel gauge, miscellaneous vehicle information and warning/caution lights) went blank and was completely unresponsive while driving at 80 mph. No steering wheel mounted controls (audio, hands-free, cruise control) were responsive.
2025 Subaru WRX · Electrical System · filed with NHTSA Oct 11, 2026 · ODI 11770472
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 group65 other manufacturer communications filed against the Subaru WRX 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 |
|---|---|---|---|
| 18-244-26 | Service bulletin | Sep 18, 2026 | "This Bulletin announces additional troubleshooting steps for the following DTCs: DTC C1956: RH Actuator Circuit DTC C1957: LH Actuator Circ… |
| 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… |
| 15-322-25R | Service bulletin | Sep 14, 2026 | In the interest of customer satisfaction, Subaru of America, Inc. (SOA) is extending the New Car Limited Warranty coverage for the CP1 & Gen… |
| 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… |
| 15-343-26 | Service bulletin | Sep 1, 2026 | "This bulletin announces a design change to the cord assembly that connects the Center Infotainment Display (CID) to the CCU, addressing rep… |
| 10-107-26 | Service bulletin | Aug 31, 2026 | This bulletin announces design changes to the front seat bottom heat unit. |
| 16-150-24R | Service bulletin | Aug 20, 2026 | "This bulletin announces availability of new reprogramming files developed to address the two symptoms described below: SYMPTOM 1: A jerk or… |
| 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… |
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 05-98-26 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 05-98-26 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 05-98-26 cover?
The manufacturer filed it against 5 model years: 2026 Subaru WRX, 2025 Subaru WRX, 2024 Subaru WRX, 2023 Subaru WRX, 2022 Subaru WRX. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.