The invention relates to a device for assistance in blind to exit maneuver parking battery or angle (1) consisting of one or more cameras (2) installed on the rear right side zones, and / or left anterior lateral vehicle (for countries with flow direction from right) or installed in the rear left side areas, and / or right of the vehicle front side (for countries with flow direction from left) an image processor and an alarm system to driver. The images provided by the cameras are analyzed by a processor that is also connected to the vehicle electrical system. The system automatically provides the driver with an audible or visual alarm to alert you to the presence of vehicles approaching the exit lane of the parking maneuver specific output battery or angle parking.