System to allow third parties to alert the driver of a vehicle, for example in case of improper parking or obstructing the track.

System to allow third parties to alert the driver of a vehicle, for example in case of improper parking or blocking of the road. System to allow third parties (13) to alert the driver (11) of a vehicle (9) if the vehicle is improperly parked, blocking the road or in any other situation, avoiding having to honk the vehicle or generate any noise pollution. The system comprises at least one control unit (3), actuating means (7) located accessible from outside the vehicle (9) to allow a third person (13) initiating an alert procedure, and a transceiver element (8 ) located in the vehicle (9) and capable of sending an alert to a terminal (12) associated with the conductor (11) when receiving a corresponding command from the control unit (3), and receiving a response from said terminal (12 ).