A vehicular damping control system (101) that executes damping control that suppresses sprung mass vibration in the vehicle (10) by controlling a power source (21) mounted in a vehicle (10) changes the control mode of the damping control according to the operating range of the power source (21). Changing the control mode of the damping control according to the operating range of the power source (21) enables the vehicular damping control system (101) to improve coordination between the damping control and other control related to the power source (21), for example, and thus execute appropriate damping control.