# Service campaign B611526

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 campaign
- NHTSA id: 11036455
- Published by NHTSA: 2026\-08\-28
- Manufacturer's number: B611526
- Manufacturer's date: 2026\-08\-27
- Campaign id or software version: 0061880900
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

In vehicles equipped with the Roof Function Center “FZD‑21” variant, a quiescent‑current violation mayoccur if the system fails to enter sleep mode. When this sleep error is present, a remote software upgrade\(RSU\) may be aborted and the FZD can become degraded. The following Check Control Messages \(CCMs\) may be displayed: “Energy Management — Increased Energy Consumption While Parked.” “Software Upgrade Failed — Workshop Visit Required.”

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036455-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11036455-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2024 to 2025 BMW 530I
- 2025 BMW X3

## Recalls for the same vehicles and component

- [26V056000](/recalls/nhtsa/26V056000.md), 2026-01-30: ELECTRICAL SYSTEM:STARTER ASSEMBLY
- [2025168](/recalls/tc/2025168.md), 2025-04-01: Electrical
- [25V202000](/recalls/nhtsa/25V202000.md), 2025-04-01: ELECTRICAL SYSTEM:STARTER ASSEMBLY; ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
- [2025096](/recalls/tc/2025096.md), 2025-02-21: Electrical
- [25V109000](/recalls/nhtsa/25V109000.md), 2025-02-21: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
- [23V700000](/recalls/nhtsa/23V700000.md), 2023-10-18: ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR

## Other bulletins for the same vehicles and component

- [B611226](/bulletins/11037844.md), 2026-10-02, Service campaign: ELECTRICAL SYSTEM. The BCP controls several vehicle functions, including the windscreen wipers and air conditioning actuators. Low current flow may cause excessive current in parts of the BCP circuit board and damage the unit. If a fault occurs, the wipers or air flap controls may operate incorrectly or fail. A wiper failure is indicated by a yellow warning light and the “Windscreen wiper fault” Check Control message.
- [B630526](/bulletins/11037532.md), 2026-09-28, Service bulletin: ELECTRICAL SYSTEM. After programming the vehicle via ISTA/RSUto I\-level …26\-03\-5xx, customer may reportsome of the interior ambient lighting strips\(arrows\) may begin to fail sporadically after adeep sleep cycle. This concern is temporary and the interiorambient lighting will be restored on its ownafter the vehicle is locked/unlocked or colorselection setting is changed.
- [B630526](/bulletins/11036381.md), 2026-08-27, Service bulletin: ELECTRICAL SYSTEM. After programming the vehicle via ISTA/RSUto I\-level …26\-03\-5xx, some of the interiorambient lighting strips \(arrows\) may begin tofail sporadically after a deep sleep cycle.
- [B340124](/bulletins/11036380.md), 2026-08-27, Service campaign: ELECTRICAL SYSTEM. After replacement of the Integrated Braking system \(IB\)/Power Brake the total distance covered might belower than when handed over to the workshop for the repair.
- [B652026](/bulletins/11035404.md), 2026-07-31, Service bulletin: ELECTRICAL SYSTEM. The Central Information Display \(CID\) side of the Multifunction Display \(MFD\) may flicker intermittently. Theflickering manifests itself in three phases: The image is distorted The central information display turns black \(black screen\) The image is OK again The complete flickering episode with all the above\-mentioned three phases only lasts about half a second intotal each time.
- [B651826](/bulletins/11034469.md), 2026-07-03, Service bulletin: ELECTRICAL SYSTEM. If BMW Intelligent Personal Assistant is active in the vehicle, once the customer exits the vehicle and a newkey cycle starts, the Intelligent Personal Assistant is deactivated and no longer available.
- [B651726](/bulletins/11034468.md), 2026-07-03, Service bulletin: ELECTRICAL SYSTEM. After a factory reset of the head unit, the navigation voice input cannot be activated or deactivated.
- [B651426](/bulletins/11034467.md), 2026-07-03, Service bulletin: ELECTRICAL SYSTEM. The vehicle may experience various operational issues with Apple CarPlay Projected Modes such as: Dropped connections No automatic reconnection Display errors
- [B651226](/bulletins/11034466.md), 2026-07-03, Service bulletin: ELECTRICAL SYSTEM. The voice command to deactivate Automatic Engine Start/Stop function can also trigger the activation ofIconic Sounds.
- [B610126](/bulletins/11034462.md), 2026-07-03, Service bulletin: ELECTRICAL SYSTEM. During vehicle start\-up the Secure Element \(SE\) of the BCP may fail causing communication errors. TheCheck Control message “Drive carefully. Driving stabilisation.” will appear. In addition, the fault memoryentries below will be stored within 40 seconds of each other. ACSM: 02010A \- Coding: Coding data not qualified VIP: 02390A \- VIP control unit: Coding data not released, signature IB: 02290A \- DSC control unit: Coding data not released, signature HKFM: 020D0A \- HKFM: Coding data are not qualified

JSON: [/v1/bulletins/11036455](/v1/bulletins/11036455)

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