One problem related to air conditioner 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.
When turning on the a/c system I get a really strong mildew/horrible smell from the vents. I believe it results in water accumulating in it, promoting the growth of the mold, and whenever you turn on the air conditioner, the first thing you do is get hit with a blast of moldy air also, when a/c is off it has a very strong smell as well which I need to open the windows because it gets me dizzy and nauseous. I don't think this is safe and it's a health hazard. After researching on the internet, it seems like this is a common problems with kia cars due to design flaw. Many have complained to kia, but kia has not taken an approach to fix this problem. I've taken my car to the dealer and I was told it can be fixed for $150. 00, but I was told it's not guarantee the problem will be fixed. I've made a complaint to Kia Motors America cooperate, but has advised this problem is not under warranty and is not very helpful. I would like to file a formal complaint.