Abstract: A parking system (80) for a vehicle (12), the parking system (80) comprising: a sensor (18A , 18B , 18C , 18D); a processor (82); and a transmitter (88); wherein: the parking system (80) is configured to determine a distance between an object and a reference point of a vehicle (12) to which the parking system (80) is connectable, in dependence of an output of the sensor (18A, 18B, 18C, 18D), and when the determined distance between the object and the reference point is less than a predetermined value, the parking system (80) is configured to transmit, by the transmitter (88), a signal receivable at a user device (50) of a user of the parking system (80), the signal indicative of a state of the vehicle (12) to which the parking system is connectable.