I LOVE my Yaris but.........

[swng]

Originally Posted by gonzo452001

I wish i could use my deforst without the ac coming on uses more gas sometimes if going highway speeds i get by not turning the fan on so the ac doesn't come on and just turn the fan on when i have too maybe in time someone will come up with a way to bypass the ac i know you can on most years of the tacoma

For the not so serious situations, you can try turning the ventilation knob to the 12 o'clock position, i.e. the position with a downward pointing arrow (the A/C won't turn on at that position) and switch the fan speed to at least 3. If you do that right from the time you start your car, you can probably be able to have a clear view of the front for the whole trip. Then, if you also want to keep your side windows clear, try directing the side vents towards them.
NB: For fast defogging and in the more serious situations, always use the positions involving the A/C.