VEHICLE CONTROL METHOD AND VEHICLE CONTROL DEVICE

A vehicle control method includes entering an initial warning state based on a door being locked in a pre-warning state to output a first warning alarm for a first time interval after an ignition of a vehicle is turned off, and entering an escalation warning state based on end of the first warning alarm and outputting a second warning alarm for a second time interval, wherein the first and second warning alarms are output based on detection of a passenger in the vehicle.