Car was unused for less than a week and upon going to use it the vehicle was dead. Jumped vehicle and next day was dead again. In researching the problem, many other Santa Fe Hybrid owners have run into this same issue. Dealership admitted many hybrids from Hyundai face this issue and recommended installing a trickle charger for when not using the vehicle for a couple days which seems ridiculous for a brand new vehicle. Likely something draining battery slowly in car