Some Escape 2020-2022 plug-in hybrid electric vehicle (PHEV) and 2021-2022 Corsair PHEV may exhibit a 12-volt battery discharged while the vehicle is plugged in during the high voltage battery charging and/or inoperative level 2 charger (220/240 volts) at customers residence but charging performance operates as intended at a dealership or other locations. This may be due to the software in the battery charger control module (BCCM) (also known as secondary on-board diagnostic module (SOBDM)) and/or differences in local electrical power grids for the level 2 charger. To correct the condition, follow the Service Procedure to reprogram various modules starting with the powertrain control module (PCM).
