Just a heads up I took one off a newer ~06 buick rainer and it doesnt work the same as ours. Looks exactly like ours with the exception of knobs being taller.just incase some one like myself thinks of grabbing one from junkyard.
What works differently is the mode selected and where air is coming out dont seem to match. As well as when you leave it alone for about 2 seconds. It says EXT i was under the impression this was for out or ecterior temp but not trus as being p arked this week number said 108 f. Which didnt match.