Why is my 2015 Kia Sorento abs and traction control light on?

There are a number of reasons that the anti-lock brake and traction control lights will illuminate in Your 2015 Kia Sorento, most having to do with the ABS module and related electrics. It's impossible to diagnose and pinpoint without Your diagnostic trouble codes (DTCs), but the most common issue on the '15 Sorento that will manifest this one or more failed wheel speed sensors. The firSTStep You should take is checking Your Sorento with an OBD-II scan tool with ABS functionality. If You don't have one, it's typically offered as a free service at most major automotive part stores. Once You have DTCs, You'll be able to pinpoint Your issue more effectively; it could be anything from a bad ABS module to a bad speed sensor to a broken down tone ring.