Recently, Tesla started to roll out the 2020.12.6 OTA software update with traffic light and stop sign control (Beta version)
Here is the official release note:
Traffic Light and Stop Sign Control is designed to recognize and respond to traffic lights and stop signs, slowing your car to a stop when using Traffic-Aware Cruise Control or Autosteer. This feature will slow the car for all detected traffic lights, including green, blinking yellow, and off lights. As your car approaches an intersection, your car will indicate the intention to slow down via a notification, slow down, and stop at the red line shown on the driving visualization. To continue through the stop line, push down the gear selector once or briefly press the accelerator pedal to confirm that it is safe to proceed. 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. This feature will be conserative, slowdown often at first, and will not attempt to turn through intersections. Over time, as we learn from the fleet, the feature will control more naturally.
To enable, shift your car into PARK and tap Controls > Autopilot > Traffic Light and Stop Sign Control (Beta).
Note: Before this feature can be enabled, camera calibration may be required, and the latest version of Navigation maps must be downloaded via Wi-Fi. Please refer to the Owner's Manual for additional details about this feature.