It is an automatic system. When selecting heat, especially 90, it will blow at floor. As you transition to cooler settings, and based on interior temp, it will go bi-level, and then to dash vents. The mode is always system dependent, unless Defog, max heat, or max cool(60) is selected. Max heat will be floor, max cool will be dash. Hopefully this makes sense.
Tuesday, July 7th, 2009 AT 11:14 PM