Kia Optima 2005 Problems
No car is perfect, but we've gathered everything relating to the Kia Optima 2005 reliability here to help you decide if it's a smart buy.
Transmission flaring in Kia Optima
The transmission is designed to adapt its shifting pattern to your driving style, which I assume is slow and steady given that you have only done 34,000 km in six years of owning the car, and that's probably what you're feeling, as Kia has suggested. Having the gearbox serviced and the fluid changed would be a good idea, but I suspect it wouldn't fix your problem.