TSB 15-301-22R — Subaru Service bulletin
15-301-22R is a service bulletin on file with NHTSA for the Subaru WRX, 2022–2023 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. This bulletin 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.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 15-301-22R names
| Vehicle | Model years |
|---|---|
| Subaru WRX | 2022, 2023 |
Every document filed under 15-301-22R
| Document ID | Filed | Type |
|---|---|---|
| 15-301-22R | May 15, 2026 | Service bulletin |
What 15-301-22R covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 15-301-22R?
15-301-22R is a service bulletin filed with NHTSA by Subaru, covering the Subaru WRX across the 2022–2023 model years. NHTSA's summary reads: This bulletin 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.
Which vehicles does 15-301-22R cover?
NHTSA's file names Subaru WRX (2022–2023). 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 15-301-22R a recall, and is the repair free?
No. 15-301-22R 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 15-301-22R?
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 15-301-22R, 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 15-301-22R. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.