Abstract: An automatic vehicle left or right turn signaling device utilizes a vehicle mount traffic lane detection sensor(s), the vehicle mount traffic lane detection sensor(s) in response to detecting traffic lane presence near proximity of a vehicle, the vehicle signaling device automatically activates the vehicle left or right turn signal lights to warn other vehicle drivers that the particular vehicle moving towards near proximity of a next traffic lane. The vehicle signaling device may be connected to a GPS navigation device. The navigation device based on given route information provides signals to vehicle mount traffic signaling device to automatically flash the vehicle left or right turn signal lights based on received GPS navigation given instructions prior to or during the driver making a left or right lane change, making a left or right turn, or a U turn.