With the headlight delay selected:
- turning the vehicle off, after opening & closing the driver's door; the headlights stay on less than 30 seconds (didn't test how long, but lights stay on longer if you stay in the vehicle and/or leave the driver's door open). Tested both in AUTO position and in ON position.
If headlight delay is not selected:
- then in both positions, the headlights immediately turn off when the vehicle is turned off.
Seems only difference is:
- in AUTO position - you drive with only DRL in the daytime when conditions are bright enough (no running lights)
- ON position - you drive with full headlights & running lights (& fog lights, if equipped/selected) all the time
So no need for a warning signal.