Subaru bulletin 04-29-23R
What it saysThis bulletin announces the availability of new reprogramming files for the Electronic Power Steering (EPS) control module developed to address DTCs C2531 (Control Module CPU) and C2532 (Control Module Peripheral… NHTSA’s full summary ↓
Subaru filed this with NHTSA as a service bulletin dated Mar 13, 2024, received Jul 3, 2023, about the steering — 2 documents under this number. It names 2 model years (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.
Get the next Subaru bulletin for your model by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis bulletin announces the availability of new reprogramming files for the Electronic Power Steering (EPS) control module developed to address DTCs C2531 (Control Module CPU) and C2532 (Control Module Peripheral Circuit) detected by the EPS.
Trouble codes it names: C2531 C2532 B2811 U0122 2 of 4 read from the document itself
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 04-29-23R | Service bulletin | Mar 13, 2024 | 10252457 | PDF, 824 KB |
| 04-29-23R | Service bulletin | Jun 12, 2023 | 10238442 | PDF, 252 KB |
What the document itself lists
The manufacturer titles it “Electronic Power Steering Reprogramming Files/”.
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 34110FN013 | — | — | |
| 34110FN014 | — | — | |
| 34110FN034 | — | — | |
| 34110FN035 | — | — | |
| 34110FN092 | — | — | |
| 34110FN093 | — | — | |
| 34110FN094 | — | — | |
| 34110FN102 | — | — | |
| 34110FN103 | — | — | |
| 34110FN104 | — | — |
Read by machine from the document NHTSA serves (5 pages), read Sep 30, 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.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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.
Email me new Subaru bulletins for one of these models
A weekly email, sent only in a week when Subaru files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 150 complaints with NHTSA since 2015. 14 of them name Steering — 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.
The infotainment system and Apple CarPlay connectivity is posing a safety hazard. When I’m on a phone call my audio will randomly cut out and suddenly the person on the other side of the call can no longer hear me. In order to fix the issue I must pick up my phone while I’m driving to disconnect from Apple CarPlay and reconnect.
2024 Subaru Crosstrek · Electrical System · filed with NHTSA May 9, 2024
Part 3 SUBARU STRUT ISSUE I called the service department at Peltier Subaru and told them what happened and that I should be reimbursed for the tire. I was told that I needed to bring the tire in so that it could be inspected, along with the car to make there wasn’t something else going on.
2024 Subaru Impreza · Steering · filed with NHTSA Jan 28, 2026
I was driving with cruise control enabled right around 40mph. All of the sudden, while I was moving, my speedometer dropped to 0 and all of my dashboard lights turned on. I pulled over to the side of the road and tried to put the car in park to figure out what was going on.
2024 Subaru Crosstrek · Steering · filed with NHTSA May 17, 2024
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 steering
Source: same model, same component group2 other manufacturer communications filed against these Subaru models under the same component group (steering), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 07-242-26 | Service bulletin | Jul 15, 2026 | This bulletin outlines a repair procedure to be performed if DTC B2781 is set in the steering lock control module. |
| 07-234-26 | Service bulletin | May 1, 2026 | This bulletin announces design changes to the heated steering wheel switch assembly and harness. The new switch design relocates the connect… |
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 04-29-23R 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 04-29-23R 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 04-29-23R cover?
The manufacturer filed it against 2 model years: 2024 Subaru Crosstrek, 2024 Subaru Impreza. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.