Lets make a list of cool hidden functions our F10 have that others may not know of-- When you parked the car and turned both engine and ignition off, if you hold the signal knob for 3 sec in each of the directions, the front parking lights and day-time lights and rear LED daylights will turn on.- The "diamond" button on your Key Fob has dual-purpose. Press briefly and the lights come on. Press and hold for 3 seconds to initiate the panic Alarm.