One problem related to steering is loose 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.
The vehicle was purchased new in 2015, the steering box on this vehicle was replaced in November 2016 under warranty as the steering wheel would have a hesitation (felt like a brief sticking) regardless of driving conditions but more dangerous at highway speeds. Now may 2018 I am having to have it replaced again as the steering is very loose and wanders for no reason, again, regardless of driving conditions but more unpredictable at highway speeds and requires a great deal of concentration to keep the vehicle in the lane. The vehicle is 36 months old with 78000 miles and is having the 3rd steering box installed. The technician has deemed my vehicle unsafe to drive and stated that the tech support from kia acted as though they weren't surprised. I do not feel comfortable driving this car knowing that this mechanism is failing at an unsafe rate. Kia knows of this problem and apparently feels fine with it though they deem the car unsafe to drive due to a part that they knowingly are installing in these vehicles. A brief search on the internet (god love the internet) will reveal that this is a problem that many people are having. Please look into this, these vehicles are unpredictable on the road and by their own admission unsafe. My case number with kia for this problem is 12711641.