Some 2020-2021 Explorer/Aviator/Police Interceptor Utility and 2021 F-150 Hybrid vehicles equipped with a 10R80 modular hybrid transmission (MHT) and with less than 100 miles (160 kilometers) may exhibit a transmission fluid leak that appears to be coming from between the hybrid drive unit and transmission case joint. This condition may be due to residual transmission fluid trapped between the front module and transmission case joint during the assembly process. Clean the area thoroughly and reevaluate with the vehicle at operating temperature before attempting any leak related repairs.