Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Zero power, 2011 Kia Optima SX › Reply To: Zero power, 2011 Kia Optima SX July 24, 2020 at 3:29 pm #961962 Richard KirshyParticipant Did you check the battery cable (both ends)connections, also the main power feed(s) into the fuse box. Might also test the battery and alternator.