Ditto the above...I believe it is discussed in the owners manual. If you use the AUTO function...it will run the AC compressor if needed...as well as activate the condensation sensor as needed.
It will also reduce the need to constantly adjust the blower speed (except for very rare occasions). Why have to touch the HVAC buttons when you can basically set-it and forget-it for most of the year.
EDIT: yep...it's discussed in the owners manual.
