This sounds like the low beam relay could be bad or headlight switch. 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:
This is because the headlight are controlled by the BCM, but the relay is an easier and much chear fix. here are the headlight wiring diagrams so you can see how the system works with the relay location as well:
I also included the BCM replacement instruction as well. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
Images (Click to enlarge)
Sunday, February 28th, 2021 AT 7:23 PM