TSB 05-98-26 — Subaru Service bulletin
05-98-26 is a service bulletin on file with NHTSA for the Subaru WRX, 2022–2025 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This 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 own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 05-98-26 names
| Vehicle | Model years |
|---|---|
| Subaru WRX | 2022, 2023, 2024, 2025 |
Every document filed under 05-98-26
| Document ID | Filed | Type |
|---|---|---|
| 05-98-26 | June 2, 2026 | Service bulletin |
What 05-98-26 covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 05-98-26?
05-98-26 is a service bulletin filed with NHTSA by Subaru, covering the Subaru WRX across the 2022–2025 model years. NHTSA's summary reads: This 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).
Which vehicles does 05-98-26 cover?
NHTSA's file names Subaru WRX (2022–2025). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB 05-98-26 a recall, and is the repair free?
No. 05-98-26 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of 05-98-26?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under 05-98-26, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under 05-98-26. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.