Sounds to me like the climate control is figureing out what the temp is in your vehicle is after you have been away and then delivers what it thinks is best based on the temp you have chosen. To many variables at work i suppose.

Auto seems to work well for me although at times it's knows it's too hot in the vehicle and proceeds to cool things down quickly with high speed air.

Over all it works prettry good. I have to admit though that i have never seen any climate control work as good as my 1987 Fleetwood Cadillac. It flatout just worked no matter what the inside or outside tempt.

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