Smart key power liftgate opens too far away from car. After locking car, put smart key in pocket. I go in to eat and when I return, I find power liftgate open. Somehow smart key, while in my pocket, power liftgate button was pressed. This also happened again after going to a museum and coming back to car finding liftgate was open in parking lot. Luckily nothing was taken. KIA needs to work on shortening the distance of operation or make all buttons harder to push.