IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

why does the HVAC system do this

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Old 01-22-10, 05:05 PM
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soupdawg
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Default why does the HVAC system do this

So I press the windshield defroster and it turns on and then when I press it again to turn it off, it turns off, but the automatic climate control turns on.
Old 01-22-10, 05:16 PM
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jkang5
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mine does the same so i don't think there's anything wrong with yours. that being said, it does annoy me too.
Old 01-22-10, 05:59 PM
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edgeucated
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it does it for me too, i just hit the off button right away. but i have also always wonder why it does this
Old 01-22-10, 06:09 PM
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KvnChu
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my E does that too, its usually to stop the windshield from fogging up again
Old 01-22-10, 09:03 PM
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15951
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Originally Posted by KvnChu
my E does that too, its usually to stop the windshield from fogging up again
+1

The assumption is that it's a good idea to take humidity in the cabin out of the equation.
Old 01-22-10, 09:20 PM
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I just hit auto and hit off again and it turns off. Kinda annoying
Old 01-23-10, 04:18 AM
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ajmtbm
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Originally Posted by soupdawg
So I press the windshield defroster and it turns on and then when I press it again to turn it off, it turns off, but the automatic climate control turns on.
i actually kind of like it. with the system in auto you press the defrost button and it turns on defroster full bore, unfogs the window quickly, and when you press it again it is back to normal. i think it is well thought out and a nice feature.
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