SMART KEY SYSTEM FOR AUTOMOBILE

A key system for an automobile according to the present disclosure includes an on-vehicle device (1) configured to transmit and receive a radio signal to and from an electronic key (2), and a resin panel (3) through which the on-vehicle device (1) is fixed to and held by a body of the automobile. The on-vehicle device (1) includes a transmitter (11) configured to transmit a search signal to the electronic key (2), a receiver (12) configured to receive a response signal transmitted from the electronic key (2) in response to the search signal, a control unit (14) configured to control the transmission of the search signal, and a resin case (15). The smart key system for the automobile according to the present disclosure removes electrostatic charging generated by the search signal transmitted from the transmitter (11) in either or both of the resin case (15) and the resin panel (3).