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.

Also applies to
- 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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