Your vehicle indicates that it recognizes you approaching or leaving with welcome and farewell lights. These lights also help you to see the area surrounding your vehicle.
Welcome lights
A brief light sequence triggers when you unlock your vehicle. If the welcome lights sequence is enabled and you are using you a distance-capable key, the lights activate automatically as you approach.
Farewell lights
When the vehicle locks it triggers a brief lighting sequence. If the vehicle is not locked, some lights remain on for a short period of time.