Why would my 2013 Hyundai Sonata stall when you turn the headlights on. take foot of gas and press again and it picks back up?

What is your question?

When lights go from auto to on or you turn on manual it will stall engine. If you turn light off or let up and repress gas pedal it will go just fine with no problems. Its is not showing any codes on my scan tool.

How long has your 2013 Hyundai Sonata had this problem?

about 15 days