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Auto Climate Question


nards444

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I believe the BCM will not engage the a/c if the ambient temp is below a certain point. Otherwise the a/c will run occasionally to dehumidify the cabin. This helps to keep the windows from fogging up.

 

 

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Yea I noticed this as well. But, I haven't noticed a difference in the cold weather running on Auto vs Manual HVAC.

 

I noticed my dads Buick does the same thing, when Auto is on the AC lights up. The ambient temp sensor tells the Auto HVAC weather or not to use AC or Heat. Just depends on the temp outside.

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