BMW TSB #B840121

2018 BMW M4

TSB Document:

Affected Component: EQUIPMENT:ELECTRICAL

Summary
TELEMATICS UNIT DEACTIVATION DUE TO 3G CELLULAR TECHNOLOGY DISCONTINUATION: The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February 2022.

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Date Published
MAY 01, 2021
NHTSA TSB #
10200487
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