Andrew Pittsburgh PA

So last time my battery was dead after a long out of town trip with dome light left on, I had to have vehicle towed to dealer for reset and new battery. Is there an easy way to reset everything once battery completely dies, and needs to be recharged or replaced? Or I am SOL until next time with gadget listed above? 2018 RX 350 parked outside in winter as spare vehicle, never thought about battery dying and needing charged and systems reset. Thanks for advice and support.