Some tips for you:
1) The follow me home device is a function that allows the ehadlights to stay on for a while after you turn off the ignition. I think this is something that the americans made first, to light up your driveway at night so you can find your door. Useless for me anyway, but still...
2) It seems on the Australian models at least, pressing the KM button for 4 seconds or more will turn off all lights except speedo, same procedure to turn it back on.
3) The Air Recirculation thing is quite easy:
-If the right LED is on (next to the A for Automatic) it's in auto mode.
-If both LEDs are on, it's in Auto mode AND recirculation is at the moment engaged.
-If only left LED is on it's on recirculation (manual)
-Both LED's off, manual mode, no recirc.
If your car hasn't used any oil, that's a good thing, not a bad thing!
Hope this clears things up a bit...