The only thing I see that can be causing it would be related to the auto light sensor in the body control module. When it turns on, do you know if it is high or low beam?
If you look at the attached pic, you'll see that the switch goes to the BCM and then it goes through the sensor (on automatic) or the sensor is bypassed and power sent to the lights. So, pay attention to which beam is turning on and try pulling the appropriate fuse to see if the light goes out. If it doesn't, then suspect a short to power in that wiring to the light. If it goes out, I have a feeling it is with the BCM. but to be sure lets do a CAN scan which is the future of automotive repair you can get a CAN scanner from Amazon for about $50.00 here is a video to show you how.
Here is a link you may find helpful:
Check out the diagrams (Below). Please let us know what happens.
Tuesday, December 1st, 2020 AT 5:40 PM