Service Bulletin

2021-2023 BMW X-Series Exterior Mirror LIN Module Change

This manufacturer communication, NHTSA ID 10236229, informs about a design change in the Local Interconnect Network (LIN) module for the exterior mirrors in certain 2021-2023 BMW X-Series vehicles. This adjustment was made due to semiconductor supply constraints.

Byeditor sarah mitchell2022 BMW X5
2022 BMW X5 — 2022 BMW X5 manufacturer_communication
Editorial illustration generated for this article.
BMW X5 LIN moduleBMW X-Series exterior mirrorLocal Interconnect Network modulesemiconductor supply BMWBMW TSB 10236229BMW X3 mirror moduleBMW X4 mirror moduleBMW X6 mirror moduleBMW X7 mirror moduleexterior mirror controller
BMW X3
2021–2023
BMW X4
2021–2023
BMW X5
2021, 2023
BMW X6
2021–2022
BMW X7
2021–2023

What This Communication Is About

This manufacturer communication, identified by NHTSA ID 10236229, addresses a specific design modification implemented in various BMW X-Series models. It informs technicians and owners about a change concerning the Local Interconnect Network (LIN) module within the exterior mirrors. This adjustment involved switching the LIN module to a different controller.

Why This Change Occurred

The primary reason for this alteration was the global semiconductor supply shortage. To ensure continued production and availability of vehicles, BMW adapted its manufacturing process by integrating an alternative controller for the exterior mirror's LIN module. This proactive measure aimed to mitigate the impact of supply chain constraints on vehicle assembly.

What Owners Should Know

This manufacturer communication is primarily an informational update regarding a production change. It does not indicate a defect, a recall, or a required repair for existing vehicles. Owners of affected 2021-2023 BMW X-Series models, including the 2022 BMW X5 manufacturer_communication, should be aware that their vehicle's exterior mirror LIN module may utilize a different controller than originally specified, a result of semiconductor supply adjustments. There are no reported symptoms or performance changes associated with this modification.


Source: NHTSA ID 10236229

Frequently Asked Questions

What is the Local Interconnect Network (LIN) module in my BMW?
The Local Interconnect Network (LIN) module is a component within your vehicle's electrical system that facilitates communication between various electronic devices, often used for less critical functions like controlling exterior mirrors.
Why did BMW change the LIN module in the exterior mirrors?
BMW made this change due to global semiconductor supply shortages. To maintain vehicle production, an alternative controller was integrated for the exterior mirror's LIN module in certain models.
Does this change affect the functionality of my BMW's exterior mirrors?
The manufacturer communication does not indicate any change in the functionality or performance of the exterior mirrors as a result of this LIN module controller switch. It is an internal production adaptation.
Is this manufacturer communication a recall for my 2022 BMW X5?
No, this is not a recall. Manufacturer communication NHTSA ID 10236229 is an informational bulletin detailing a production change due to supply chain issues, not a safety defect or a required repair campaign.

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