BMW bulletin B840625
BMW filed this with NHTSA as a service bulletin dated Oct 3, 2025, received Oct 9, 2025, about the electrical system. It names 43 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 communicationIn some situations, an emergency call may be triggered in the vehicle without either the customer pressing the SOS Call button, or an airbag deployment event. In some cases, the customer may not even be inside the vehicle.
Document filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| B840625 | Service bulletin | Oct 3, 2025 | 11024211 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5; the full text comes from the manufacturer or a dealer. 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. Quote it at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themAlso filed against model years this site has no page for: 2023 BMW M3; 2024 BMW M3; 2025 BMW M3; 2024 BMW M4; 2025 BMW M4; 2026 BMW M4; 2025 BMW M5.
A 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 BMW B840625 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 B840625 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 B840625 cover?
The manufacturer filed it against 43 model years: 2025 BMW 2 Series, 2024 BMW 2 Series, 2023 BMW 2 Series, 2025 BMW 3 Series, 2024 BMW 3 Series, 2026 BMW 4 Series and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.