2021-2023 BMW Connected Drive Voice Services Issue
BMW has identified a production error in ATM-1 and TCB-4G telematics control units in certain 2021-2023 models. This issue prevents Connected Drive voice services such as Concierge Call, BMW Assistance, and emergency call voice from functioning correctly after the 3G network shutdown.
Sarah Mitchell2022 BMW X5
Also applies to
- BMW 228i
- 2021–2022
- BMW 230i
- 2021–2022
- BMW 330e
- 2021–2023
- BMW 330i
- 2021–2023
- BMW 530e
- 2021–2023
- BMW 530i
- 2021–2023
- BMW 540i
- 2021–2023
- BMW 740i
- 2021
- BMW 745e
- 2021
- BMW 750Li
- 2022
- BMW 840i
- 2021–2022
- BMW M2
- 2021–2022
- BMW M235i
- 2021–2022
- BMW M240i
- 2021–2022
- BMW M340i
- 2021–2023
- BMW M5
- 2021–2022
- BMW M550i
- 2021–2023
- BMW M760i
- 2021
- BMW M760Li
- 2022
- BMW M8
- 2021–2022
- BMW M850i
- 2021–2022
- BMW X1
- 2021–2022
- BMW X2
- 2021–2022
- BMW X3
- 2021–2023
- BMW X4
- 2021–2022
- BMW X5
- 2021, 2023
- BMW X7
- 2021–2023
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Why This Matters
The shutdown of the 3G cellular network in the U.S. has impacted certain telematics functions in 2021-2023 BMW vehicles. Specifically, a production error in the telematics control units means that Connected Drive voice services, which now rely on the 4G network's Voice over LTE (VoLTE) function, may not work correctly. This BMW Connected Drive voice issue affects critical communication features for owners.
Symptoms
Owners of affected vehicles may experience a loss of functionality for specific Connected Drive voice services. These include:
- "Concierge Call"
- "BMW Assistance"
- "emergency call voice"
These services will no longer be usable regionally in the U.S. due to the underlying technical issue.
The Technical Issue
The core of the BMW Connected Drive voice issue stems from the U.S. 3G network shutdown. With 3G no longer available, voice calls for telematics services must now use the 4G network's Voice over LTE (VoLTE) function. For VoLTE to work, the vehicle's SIM card needs to perform an IMS registration within the mobile communication network.
BMW has identified a production error where telematics control units, specifically ATM-1 and TCB-4G models, were delivered without the necessary IMS configuration. This prevents the SIM card from registering correctly for VoLTE, leading to the failure of the aforementioned voice services.
Repair Procedure Summary
To resolve this issue, the telematics control units (ATM-1 and TCB-4G) require an update to enable the correct IMS configuration. This update will allow the SIM card to perform the necessary IMS registration for VoLTE, restoring the functionality of the Connected Drive voice services.
Important Notes for Owners
It is important to note that not all vehicle communication functions are affected by this production error. Voice control of the vehicle itself and all other telephone functions (such as those using paired mobile devices) remain operational. Additionally, the emergency call location data, which is crucial for safety, is unaffected by this issue.
What Owners Should Do
If you own a 2021-2023 BMW model and are experiencing the BMW Connected Drive voice issue with services like Concierge Call or BMW Assistance, you should contact your authorized BMW dealer. They can diagnose the telematics control unit (ATM-1 or TCB-4G) and perform the necessary software update to restore full functionality.
Source: NHTSA ID: 10235205
Frequently Asked Questions
- What is the BMW Connected Drive voice issue?
- The BMW Connected Drive voice issue refers to a problem where services like Concierge Call, BMW Assistance, and emergency call voice are not working in certain 2021-2023 BMW models. This is due to a production error in the telematics control units (ATM-1 and TCB-4G) preventing proper IMS configuration for Voice over LTE (VoLTE) after the 3G network shutdown.
- Which BMW models are affected by the Connected Drive voice issue?
- This issue affects various 2021-2023 BMW models, including the X5, X7, X3, 330e, 530e, M550i, 330i, 530i, 540i, M340i, and many others. A full list can be found in the 'Affected Vehicles' section of this article, or by checking NHTSA ID 10235205.
- How does the 3G network shutdown relate to this BMW Connected Drive voice issue?
- With the 3G network shutdown, BMW's Connected Drive voice services now rely on the 4G network's Voice over LTE (VoLTE). A production error in certain telematics control units (ATM-1 and TCB-4G) means they lack the necessary IMS configuration to properly use VoLTE, causing the services to fail.
- What services are affected by the telematics unit production error?
- The production error specifically impacts voice-based Connected Drive services such as "Concierge Call", "BMW Assistance", and "emergency call voice". Other functions like vehicle voice control, paired mobile device calls, and emergency call location data are not affected.
- How can I get this issue fixed on my BMW?
- If your 2021-2023 BMW is experiencing the Connected Drive voice issue, you should contact your authorized BMW dealer. They can perform a software update on the ATM-1 or TCB-4G telematics control unit to enable the correct IMS configuration and restore service functionality.
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