A power consumption suppression system enables effective reduction of power consumption of an electronic key terminal. A position information acquisition section (210) provided on an electronic key terminal (200) acquires locking location information concerning the locking position of a vehicle (100) and terminal location information concerning the position of the electronic key terminal (200). A power consumption suppression section (220) provided on the electronic key terminal (200) reduces the power consumption when the distance between the locking location of the vehicle (100) indicated by the locking location information and the location of the electronic key terminal (200) indicated by the terminal location information is equal to or longer than a prescribed distance.
