BMW bulletin B631023
What it says?Condensation is present in the inner surface in one or both (inner and/or outer) taillamps. NHTSA’s full summary ↓
BMW filed this with NHTSA as a service bulletin dated Aug 19, 2025, received Sep 18, 2023, about the exterior lighting — 4 documents under this number. It names 11 model years (2022–2025). 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 communication?Condensation is present in the inner surface in one or both (inner and/or outer) taillamps.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B631023 | Service bulletin | Aug 19, 2025 | 11022112 | PDF, 1,570 KB |
| B631023 | Service bulletin | Mar 21, 2025 | 11015857 | PDF, 1,570 KB |
| B631023 | Service bulletin | Aug 20, 2024 | 11006747 | PDF, 1,517 KB |
| B631023 | Service bulletin | Aug 1, 2023 | 10242526 | not found |
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.
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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 11 model years this bulletin names have filed 189 complaints with NHTSA since 2015. 5 of them name Visibility/Wiper — 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.
Subject: Urgent Safety Complaint – Rear Visibility Obstruction in BMW 760i Due to “Theater Screen” and Rear Roller Shade Options To Whom It May Concern, I am writing to formally report a serious safety issue involving my recently purchased BMW 760i, equipped with two optional features — the “Theater Screen” and the rear window roller…
2025 BMW 7 Series · Visibility/Wiper · filed with NHTSA Oct 16, 2025 · ODI 11693924
When using the headlights there is a shadow across the top half of our windshield. The dealership was not able to fix, they acknowledged they could see what we are referring to. They are going to file a report with BMW. I do not know what to do in the meantime. This is our main transportation. This definitely needs a safety recall
2025 BMW X3 · Exterior Lighting · filed with NHTSA Jan 15, 2026 · ODI 11711233
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 exterior lighting
Source: same model, same component group11 other manufacturer communications filed against these BMW models under the same component group (exterior lighting), newest first. The eight newest are listed; the rest are on the BMW list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| B631123 | Service bulletin | Sep 10, 2026 | Moisture, condensation, and/or fogging are visible in one or both Daytime Running Lights (DRL) upper headlight assemblies. |
| B630925 | Service bulletin | May 4, 2026 | After programming the vehicle via ISTA/RSUto 25-07-5xx, some of the interior ambientlighting strips (examples circled) may nolonger function… |
| B631025 | Service bulletin | Nov 10, 2025 | RSU availability. The ambient lighting color cannot be saved permanently. The personalized color of the ambient lighting resets after the ve… |
| B630825 | Service bulletin | Sep 18, 2025 | The front interior reading light(s) (arrows) willrandomly turn ON and OFF while driving. The reading lights are normally activated by touchi… |
| B630525 | Service bulletin | Aug 20, 2025 | On G45 vehicles built with option codes 552 (Full LED Lights with Cornering Lights), or 3MF (M Shadowline Lights), the headlights’ height se… |
| B630418 | Service bulletin | Jul 21, 2025 | DAYTIME RUNNING LIGHT IS DIM OR DISCOLORED: This Service Information Bulletin (Revision 2) replaces SI B63 04 18 dated January 2019. One or… |
| 0063040200 | Service campaign | Jun 6, 2025 | G45 vehicles built with option codes 552 (Full LED Lights with Cornering Lights), or 3MF (M ShadowlineLights), the headlights’ height settin… |
| B630124 | Service bulletin | May 22, 2024 | The overhead reading lights are not bright enough on SP21 (Service Pack 2021) vehicles. |
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 B631023 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 B631023 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 B631023 cover?
The manufacturer filed it against 11 model years: 2025 BMW 5 Series, 2024 BMW 5 Series, 2025 BMW 7 Series, 2024 BMW 7 Series, 2025 BMW X1, 2024 BMW X1 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.