It only does this as you lightly touch it and it designed for lane change. If your makeing a turn you click it on. All new cars are going to this. I don't think there is anyway to disable this. If you click it all the way up or down and then off it will only blink the time you have it fully engaged.
the 3 to 4 blinks seems to be a industry standard for the time it takes to change lanes.
the 3 to 4 blinks seems to be a industry standard for the time it takes to change lanes.