An onboard automatic parking system for a vehicle comprises: an automatic parking unit (20) suited to control a maneuver of the vehicle in or out of a park area secured by a remotely controlled access system; a communication circuit (14) suited to send a wireless instruction for operating the access system; and a human machine interface (30) suited to monitor the communication circuit (14) to send the wireless instruction upon actuation of the human machine interface (30), wherein the human machine interface (30) is also suited to command the automatic parking unit (20) that controls the maneuver subsequent to actuation of said human machine interface (30).