amayiri

I am new member here, same issue Milan Mercury hybrid 2010 , seems electrical engine never kicks in, and no error codes as well as terrible mileage one local mechanic here told me to do this to force re-calibrate the HV batt start the car and then switch to N , try to consume all the power on the HV battery by starting lights , AC etc , the gas engine will not start since it is on Neutral position after the HV depleted switch the gear to Park, this will force the ICE to calibrate the HV batt , and problem solved " but should leave gas engine working until HV battery is fully charged around 10 min" i haven't tried that myself but soon i will do it what i am missing here and afraid to do because 1- will the HV batt if depleted has enough power to start the engine ? 2-if the HV was completely depleted how can we charge it ? 3-have anyone tried that ? , can any one ask ford dealer in USA ? ford dealer in middle east jordan , reported this issue as unknown cause and unknown procedure regards