No pro here, but you got it on the A/C....Defrost (as well as any other mode button)overrides Auto, and you have to manually set your defrost temps (I don't know if you can select two different temps on the windshield) then you have to manually reselect Auto and your temps after using defrost. If you watch, the arrows (in auto)will change according to the temp you select and outside temp, and where "it" thinks the air needs to be routed (dash, floor or combo).
As for your transaxle question you are right on 4hi and 4hi lock (be sure you are not on dry pavement) 4lo - when traction is compromised by incline, rocks, mud, snow, ice or any combination. Definitely not for use on dry pavement. And should be deselected after traction is regained.
OK - real pros -- jump in.
John
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\'02 HMCO
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