For autonomous vehicles it is important to be able to detect traffic lights. This work suggests a method for the Freie Universität Berlin's AutoMiny model cars to detect traffc lights. This method uses image thresholding to find candidate regions and uses the normalized rgb colors of the candidate region to check if a traffic light was found. The evaluation shows that this method is able to reliably detect traffic lights in short distance but struggles with traffic lights further away. Also a detection in real-time is not possible with the hardware of the car.