# Service bulletin B631123

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11037533
- Published by NHTSA: 2026\-09\-28
- Manufacturer's number: B631123
- Manufacturer's date: 2026\-09\-10
- NHTSA component: EXTERIOR LIGHTING

## NHTSA's summary

Moisture, condensation, and/or fogging are visible in one or both Daytime Running Lights \(DRL\) upper headlight assemblies.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037533-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11037533-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Lighting

## Vehicles listed

- 2025 BMW 740I
- 2025 BMW X7
- 2025 BMW XM

## Other bulletins for the same vehicles and component

- [B631023](/bulletins/11022112.md), 2025-08-24, Service bulletin: EXTERIOR LIGHTING. Condensation is present in the inner surface in one or both \(inner and/or outer\) taillamps.
- [B630125](/bulletins/11016444.md), 2025-04-03, Service bulletin: EXTERIOR LIGHTING. Contamination/condensation in the uppersection of the Daytime Running Lights \(DRL\)headlight\(s\); driver’s headlamp shown.

JSON: [/v1/bulletins/11037533](/v1/bulletins/11037533)

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