ok found something out today worth sharing. on my accord I noticed if I close the 2 side vents with the little slider more air comes out the front windshield vent and the side window vents infact its the first time my side windows have ever defrosted on their own

 

I'd figured that out a while ago, but kudo's on getting that by yourself instead of from someone else!

 

maybe its just me, but my side windows never frost up. h:

 

I dont know why they decided to design it that way...when you put it on defrost those vents should close automatically...its kinda a pita having to reach over to the pass side vent but oh well

 

nice find! damn, actually learned something new

 

....thermometer reads 35F this morning; headed for early safety meeting; plan put this good info to work immed.......

all the best, ez........