Why does the 3G modem on my Ford no longer work?

The North America 3G cellular service was decommissioned in February 2022.

Vehicles on the road equipped with a 3G embedded modem have lost mobile app functionality and connectivity (e.g., using MyFord^®* Mobile, being able to remote start or stop your vehicle, program your electric vehicle's charging, etc.).

^*My Ford Mobile includes a complimentary subscription that activates with vehicle sale date, requires compatible 3G cellular network connectivity, and is subject to 3G network availability. Evolving technology/cellular networks may affect future functionality. Message and data rates may apply.. NOTE: MyFord Mobile Customer Description for 17MY and Prior Focus BEV, C-MAX Energi, Fusion Energi: MyFord Mobile with 5-year complimentary subscription MyFord Mobile Customer Description for 18MY Focus BEV, Fusion Energi: MyFord Mobile with a 3-year complimentary subscription.