Winter and Heater (A/C)

[Yaris#2]

Originally Posted by MUSKOKA800

With the heat turned up, switch on the AC. This will de-humidify your environment while still providing heated air. Once all is clear, switch off the AC.

Are you using recycled air or letting the flow through mode with your defrosters on. I find mine steam up if I am set to recycle the interior air. I also like to have the driver window cracked open at least a quarter inch. Both help with reducing the fogging effect. Turning the AC also helps quickly, but then your fighting the heater.