One problem related to battery dead has been reported for the 2015 Kia Motor Sorento. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Kia Motor Sorento based on all problems reported for the 2015 Sorento.
Headlights (mainly low beams) keep burning out and need be replaced about every 6 months to year and half. This time when I needed to replace the left low beam bulb, I noticed the bulb was out when I was jumping the car due to a dead battery. A day later the battery was dead again so I took it out and had it tested. The dealership said the battery was fine. Came home and tested the power to the headlights both when the car was running and completely off (all lights as well as engine). Power is running to the headlight even when the car is off and not enough that the headlight illuminates but enough to constantly drain my battery if the car sits for more than 8 hours!!!! looking at others with the same headlight issues as well as many saying wires had melted and some fires happening. This problem should be looked into further. I will update if able to when I find the cause.