I also am having problems with the car idling up when trying to slow down at intersections and has a high idle speed when starting up putting the car in gear. This has caused my finance' to have a wreck in Oct. 06' and we are still having problems getting the Body Shop and the dealership to fix all the problems (9 months later).
The car also has a popping noise on the drivers left front side when braking hard or with a left turn (still not fixed after several attempts).
I believe the car's frame is bent because the tires are wearing out within 2-3 months (I bought a new tire in May and the dealership says it is less than 3/16" of tread left on it now in middle of July),a alignment doesn't last very long and the headlights are misaligned that bolt to the frame of the car (according to KIA) and there is only a small fine adjustment that can be made.
I am so tired of the non service and the attitude from the dealership that I am now considering seeking lawyer to assist in settling the matters because of the dealerships lack of service, training, knowledge or desire to fix these problems!