a fuel door and a sliding door are on the same side of a vehicle . the sliding door has power locking and power child locking . to prevent the sliding door from interfering with the fuel door during refueling , a lock controller responds to the fuel door moving to the open position by 1 ) preserving a current outside locked or unlocked state and a current inside locked or unlocked state of the sliding door , 2 ) initiating or maintaining the outside locked state and inside locked state , and 3 ) after the fuel door moving to the closed position , restoring or maintaining the preserved current outside locked or unlocked state and the preserved current inside locked or unlocked state .