My 2004 IS 200 Limited Edition ,warning light for the HID headlights on the dash stays on, reading some other readers problems there a 2 leveling sensors 1 behind passenger back wheel and 1 behind front wheel which could be the problem,reading on it is advised to park in front of wall and turn car on with light son,doing this the lights lowered to lowest position then lifted to the highest position then settled down to a mid point,then the dash warning lights come on , anyone got any ideas ? cheers Ian.