An ECU determines whether or not fuel in a fuel tank deteriorates. A heating system is configured to be able to perform heating (engine heating) using heat of an engine which heating uses the engine under operation as a heat source, and heating (heat-pump heating) using a heat pump cycle without using the engine as a heat source. When it is determined that the fuel in the fuel tank deteriorates, the ECU controls the heating system and the engine so as to give priority to the engine heating over the heat-pump heating.