Subaru bulletin 15-305-22R
Subaru filed this with NHTSA as a service bulletin dated Aug 20, 2026, received Jan 5, 2023, about the electrical system — 18 documents under this number. It names 21 model years (2023–2026). 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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis bulletin announces a reprogramming file availability and provides a software update installation procedure to optimize the new Gen 4.5 Denso CP1.5 Audio and Navigation head units utilized in the models listed. This is an revised version of the original bulletin.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 15-305-22R | Service bulletin | Aug 20, 2026 | 11036803 | not yet checked |
| 15-305-22R | Service bulletin | Jan 20, 2026 | 11027996 | not yet checked |
| 15-305-22R | Service bulletin | Nov 14, 2025 | 11025785 | not yet checked |
| 15-305-22R | Service bulletin | Oct 16, 2025 | 11024853 | not yet checked |
| 15-305-22R | Service bulletin | Sep 18, 2025 | 11023507 | not yet checked |
| 15-305-22R | Service bulletin | Mar 24, 2025 | 11016227 | not yet checked |
| 15-305-22R | Service bulletin | Jan 18, 2025 | 11013519 | not yet checked |
| 15-305-22R | Service bulletin | Nov 7, 2024 | 11010911 | not yet checked |
| 15-305-22R | Service bulletin | Oct 2, 2024 | 11009689 | not yet checked |
| 15-305-22R | Service bulletin | Jul 18, 2024 | 11005620 | not yet checked |
| 15-305-22R | Service bulletin | Jun 28, 2024 | 11002729 | not yet checked |
| 15-305-22R | Service bulletin | Feb 26, 2024 | 10251104 | not yet checked |
| 15-305-22R | Service bulletin | Dec 20, 2023 | 10248204 | not yet checked |
| 15-305-22R | Service bulletin | Sep 5, 2023 | 10243364 | not yet checked |
| 15-305-22R | Service bulletin | Apr 26, 2023 | 10235314 | not yet checked |
| 15-305-22R | Service bulletin | Mar 9, 2023 | 10233871 | not yet checked |
| 15-305-22R | Service bulletin | Feb 24, 2023 | 10232231 | not yet checked |
| 15-305-22R | Service bulletin | Dec 30, 2022 | 10228798 | not yet checked |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Subaru 15-305-22R 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 15-305-22R 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.
Which vehicles does 15-305-22R cover?
The manufacturer filed it against 21 model years: 2026 Subaru Ascent, 2025 Subaru Ascent, 2024 Subaru Ascent, 2023 Subaru Ascent, 2026 Subaru Crosstrek, 2025 Subaru Crosstrek and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.