BMW bulletin B610926
What it saysAn error in the Battery Management Electronics (SME) can lead to an interruption in communication, which can lead to the high-voltage system being turned off. NHTSA’s full summary ↓
BMW filed this with NHTSA as a service bulletin dated May 4, 2026, received May 18, 2026, about the electrical system. It names 2 model years (2025). 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 communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
An error in the Battery Management Electronics (SME) can lead to an interruption in communication, which can lead to the high-voltage system being turned off. The error is indicated by a Check Control message, and it is generally possible to continue driving until the vehicle is parked.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B610926 | Service bulletin | May 4, 2026 | 11032739 | PDF, 224 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 07 14 8 845 501 | Hexagon bolt | 8 | eBay Motors → |
| 64 50 7 911 467 | Hexagon screw with washer | 6 | eBay Motors → |
| 33 32 6 775 040 | Hexagon screw with washer | 2 | eBay Motors → |
| 07 14 6 884 435 | Multi-purpose bolt ASA | 4 | eBay Motors → |
| 33 12 7 607 158 | Recessed nut repair kit, blue | 1 | eBay Motors → |
| 26 10 7 882 970 | Hexagon bolt | 3 | eBay Motors → |
| 07 11 9 906 089 | Collar nut | 2 | eBay Motors → |
| 07 11 9 906 938 | Hexagon bolt with flange | 6 | eBay Motors → |
| 07 12 9 904 865 | Hexagon nut | 2 | eBay Motors → |
| 61 27 8 837 306 | Gasket | 1 | eBay Motors → |
| 61 27 8 858 065 | Sealing cap | 3 | eBay Motors → |
| 61 27 8 697 233 | Screw | — | eBay Motors → |
| 61 27 8 882 634 | Battery management electronics (seal included) | 1 | eBay Motors → |
| 61 27 8 858 064 | Seal for high-voltage battery | 1 | eBay Motors → |
| 61 27 8 858 063 | Seal for high-voltage battery | 1 | eBay Motors → |
| 61 27 8 697 234 | Screw | — | eBay Motors → |
| 64 53 9 284 018 | Sealing ring | 1 | eBay Motors → |
| 64 53 9 284 850 | Sealing ring | 1 | eBay Motors → |
| 64 53 9 284 019 | Sealing ring | 1 | eBay Motors → |
| 64 53 9 284 020 | Sealing ring | 1 | eBay Motors → |
| 51 61 9 908 657 | Hexagon bolt | 4 | eBay Motors → |
| 18 30 9 909 376 | Hexagon bolt | 2 | eBay Motors → |
| 83 19 2 446 563 | Refrigerant R1234yf Sublet as | — | eBay Motors → |
Read by machine from the document NHTSA serves (5 pages), read Sep 30, 2026. A part number is shown only where it matches BMW’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.
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What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 65 complaints with NHTSA since 2015. 9 of them name Electrical System — 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.
On November 26, 2025, my 2025 BMW XM experienced complete drivetrain failure while my wife and two children were in a Kansas City parking lot. The vehicle displayed "drivetrain malfunction," would not engage any gear, and was completely inoperable.
2025 BMW XM · Electrical System · filed with NHTSA Dec 4, 2025 · ODI 11703059
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 group82 other manufacturer communications filed against these BMW models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the BMW list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| B611826 | Service bulletin | Sep 17, 2026 | Due to unfavorable software, the Storage Management Electronics (SME) will not show fault codes that trigger the Malfunction Indicator Lamp… |
| B630526 | Service bulletin | Sep 8, 2026 | After programming the vehicle via ISTA/RSUto I-level …26-03-5xx, customer may reportsome of the interior ambient lighting strips(arrows) may… |
| 0034040300 | Service campaign | Aug 20, 2026 | After replacement of the Integrated Braking system (IB)/Power Brake the total distance covered might be lower than when handed over to the w… |
| B652026 | Service bulletin | Jul 23, 2026 | The Central Information Display (CID) side of the Multifunction Display (MFD) may flicker intermittently. Theflickering manifests itself in… |
| B840226 | Service campaign | Jul 10, 2026 | Once the Telematics Module (TCB2) enters sleep mode, a BMW Data Services trigger for Remote Services… |
| B610126 | Service bulletin | Jun 11, 2026 | SITUATION During vehicle start-up the Secure Element (SE) of the BCP may fail causing communication errors. TheCheck Control message “Drive… |
| 0012810600 | Service campaign | Jun 11, 2026 | In these vehicles with an S68 engine, an incorrect diagnosis of the Valvetronic (VVT) may occur. Undercertain operating conditions, the soft… |
| B651426 | Service bulletin | Jun 4, 2026 | The vehicle may experience various operational issues with Apple CarPlay Projected Modes such as: Dropped connections No automatic reconnect… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for BMW, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is BMW B610926 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 B610926 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. Every BMW warranty extension on file lists the ones BMW has filed.
Which vehicles does B610926 cover?
The manufacturer filed it against 2 model years: 2025 BMW X5, 2025 BMW XM. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: 2026 BMW: built on or after 3 May 2025; G05 X5 Sports Activity Vehicle (PHEV): built 3 May 2025 – 18 Aug 2025; G09 BMW XM Sports Activity Vehicle: built 19 Jul 2025 – 19 Aug 2025 — the build date is on the certification label in the driver’s door jamb.