Why does my heat/air condition goes on by itself in my SUV?

Don

Member
I have a 2003 Mitsubishi Montero Sport. My heat or air condition will go on by itself sometimes. The setting will be on off and I'll feel a breeze or my car will get warm and I'll feel the vent and there's air coming out. I don't know if this is something I should be worried about or not? It's been happening for awhile now but I just ignored it. Help?
 
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