Various 2014-2020 vehicles equipped with a 3G modem may experience a lack of 3G modem performance. This may be due to the 3G cellular service functionality being decommissioned starting August 2021 and through March 2022. As the 3G cellular service is decommissioned, vehicles equipped with the 3G telematics control unit (TCU) will lose MyFord Mobile and MyLincoln Mobile app functionality/connectivity. Repair or Replacement of the TCU should no longer be performed using existing service stock. Replacement of the 3G TCU for this concern will result in programming concerns and repairs should not be performed. The customer can pay to upgrade their 3G modem with a 4G modem by following the information in FSA 21B09. Refer to FSA 21B09 for reference and not for claiming.
