One problem related to coolant leaking has been reported for the 2014 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Kia Motor Optima based on all problems reported for the 2014 Optima.
I was on the highway traveling roughly 65 miles , I had literally just gotten onto the highway. I went to accelerate and the car just wouldn't , the rpms and mph just went down and all lights came on the dash. I had to pull over. I shut car off, car has not been able to start since that day. The engine will not turn over. It didn't make any loud noise when this happened , there was no smells. It just stopped accelerating & engine light, battery light and oil light all came on. The car was completely full of oil and the filter was clean. The car had coolant in it, no leaks. I use the same shop for all mechanical work so he has all records of my maintenance.