It uses a combination of cameras and GPS data to detect traffic lights, stop signs, and road markings. ... "As with all Autopilot features, you must continue to pay attention and be ready to take immediate action, including braking because this feature may not stop for all traffic controls," Tesla says.

Can Tesla's sense traffic lights?

Tesla's Full Self-Driving system, offered for purchase or via a monthly subscription, offers traffic light and stop sign recognition. Speed limit and traffic light recognition features debuted as part of FSD in Spring 2020.

How does Tesla know traffic light?

Tesla said the traffic light detection system is "only designed as a notification", and that drivers are ultimately responsible for observing the rules of the road. The feature will alert drivers with a chime sound when a traffic light that they are waiting at turns green.