Vehicle wanders from side to side on the highway, at highway speeds (60+ mph) and requires constant correction from left to right to maintain lane position. This has been a problem from the time we purchased it new less than 3 weeks ago. The steering is very hyper-sensitive at speed and a correction to the right requires a correction to left with no apparent "gray" or middle center area which would keep the vehicle in a straight line. Most of this is on very straight surfaces with little to no crown & camber on the road. Steering mode was changed by the dealer service dept. (at our request) from ex sport to ex standard, with minimal improvement. We replaced the oem tires, with upgraded tires. While traction and turning performance have improved, still no noticeable improvement in the wander. My wife refuses to drive the car on the highways, as she feels fear, stress and exhaustion from the constant correction during lengthy drives.

- Jurupa Valley, CA, USA

The contact owns a 2014 Kia Optima. The contact was driving 50 mph when the power steering assist failed. The vehicle was not taken for inspection or diagnosis. The manufacturer was not notified of the issue. The approximate failure mileage was 100.

- Staten Island, NY, USA