One problem related to battery cable has been reported for the 2015 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Kia Motor Optima based on all problems reported for the 2015 Optima.
Driving north bound on the 405 at freeway speeds, the vehicle showed several warning lights on the dash. Check engine light, oil light and 2 others, the vehicle lost engine power and only had brakes. I was able to shuffle off the main freeway to an off ramp where I pulled over to attempt to power the car back on. The smell of electrical fire started to become apparent and I went out to lift the hood and smoke began to come out the opening. I rushed to get my kids out the vehicle and attempted to pull the battery cable off to try to salvage it from catching fire. I was able to wiggle the battery cable off but smoke continued to come out. The vehicle was eventually dropped off at the dealership car pros kia in glendale and im being informed the starter was the issue and will need to be replaced. Im uncertain about the diagnosis since the event of the vehicle losing all power occurred during highway driving .