Just wonderded what that was for and also what makes the headlight wipers wipe.
isnt that how it works anyway? why would using the heater really cost you any gas mileage in the first place?I would not think the heater would use the AC compressor. I am pretty sure that when you are using heat, the ECON mode means it's not using the heating element. I guess it uses ambient heat from the engine bay somehow. The owner's manual explains this, I just don't remember what it says.
Headlight wipers come on when you spray the windshield for more than a certain length of time (like 2 or 3 seconds). How many times you spray the windshield has nothing to do with it.