Subaru bulletin 09-135-25
What it saysThis bulletin announces availability of new reprogramming files developed to address cases of DTC P0606 (Control Module Processor) detected by the Engine Control Module (ECM). NHTSA’s full summary ↓
Subaru filed this with NHTSA as a service bulletin dated May 20, 2025, received Jun 3, 2025, about the electrical system. It names 3 model years (2022–2024). 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 availability of new reprogramming files developed to address cases of DTC P0606 (Control Module Processor) detected by the Engine Control Module (ECM).
Trouble codes it names: P0606
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 09-135-25 | Service bulletin | May 20, 2025 | 11018910 | PDF, 1,172 KB |
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 3 model years this bulletin names have filed 14 complaints with NHTSA since 2015. 9 of them name Engine — 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.
This is a new car. There’s was only 31 miles when I purchased. One day, there’s some sound when I driving the vehicle. Once I parked, all the warning lamps was on, then my car wasn’t able to move. When the incident happened, it was only 4 months of using it and only 5,498 miles.
2022 Subaru BRZ · Engine · filed with NHTSA Feb 20, 2023
Found traces of silicone in my engine. Checked the dipstick out of curiosity and found silicone or RTV sealant. The car only has 500 miles on it. Will do oil change after break in period of Subaru’s recommended 1000 miles and will have them check the oil pan filter for more RTV…
2022 Subaru BRZ · Engine · filed with NHTSA Aug 7, 2022
Oil went dangerously low during normal 6000 mile period ( no reading on dipstick, no warning light). Subaru has replaced the engine twice under warranty due to oil consumption, 1 pint in 1200 miles. Issue started around 20k miles, engine replaced at 30k and 39k miles
2023 Subaru BRZ · Engine · filed with NHTSA Aug 10, 2026
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 group41 other manufacturer communications filed against the Subaru BRZ 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 |
|---|---|---|---|
| 15-308-23R | Service bulletin | Aug 20, 2026 | This Service Information Bulletin outlines a systematic procedure for diagnosing parasitic draw (dark/standby current) in vehicles experienc… |
| 15-304-22R | Service bulletin | Aug 13, 2026 | This Bulletin has been developed to outline the steps for gathering basic but essential information during diagnosis of Infotainment concern… |
| 15-333-25R | Service bulletin | Aug 1, 2026 | This bulletin contains illustrations of exchange components and their manufacturer as well as a description of the proper exchange procedure… |
| 15-246-19R | Service bulletin | Jun 30, 2026 | This Service Information Bulletin outlines a new required procedure to follow when performing immobilizer-related repairs on the all-new 20… |
| 01-167-08R | Service bulletin | May 18, 2026 | This bulletin contains additional information for recommended materials listed in the Service Manuals for individual models. |
| 15-337-26 | Service bulletin | Apr 30, 2026 | This bulletin announces the design change made to the front speaker assembly which have been redesigned with higher durability damper. This… |
| 07-240-26R | Service bulletin | Apr 30, 2026 | This Service Information Bulletin was developed to provide interim guidance for 2026 model year vehicles exhibiting DTC B2A20 with gen 4 Tel… |
| 10-105-25R | Service bulletin | Mar 26, 2026 | "This bulletin announces the new procedure and Warranty Fail Code for FirstTime air conditioning (A/C) performance concerns possibly resulti… |
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 09-135-25 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 09-135-25 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 09-135-25 cover?
The manufacturer filed it against 3 model years: 2024 Subaru BRZ, 2023 Subaru BRZ, 2022 Subaru BRZ. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.