The position lights are useful when you need to make other road users aware of your position, such as when you intend to leave the car stationary for a short period of time.

Rotate the ring on the left-hand steering wheel stalk to the position lights
position.

The position lights will remain on for a long time when your car is parked. Deactivate the position lights by selecting a different primary lighting mode.
Note
Opening the boot
If you open the boot in low lighting conditions, the rear position lights automatically activate.