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July 28, 2022 Service bulletin

Certain 2014-2020 Model Year Multiple Vehicle Lines

Lincoln technical service bulletin 21B09-S1 for 2015-2017 Lincoln MKZ, 2016-2017 Lincoln MKX and 2017 Lincoln Continental and others.

Bulletin number
21B09-S1
Component
Communication: manufacturer telematics
Summary
Certain 2014-2020 Model Year Multiple Vehicle Lines - 3G Telematics Control Unit to 4G Upgrade Kit. The North America 3G cellular service began decommissioning in August 2021 and a complete shutdown of the 3G network took place in February 2022. Vehicles on the road equipped with a 3G telematics control unit (TCU) / embedded modem will lose mobile app functionality/connectivity.

Owners of these vehicles have filed 372 complaints in the electrical category.

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