A/C button has no effect?
Thread Starter
Instructor
Joined: Nov 2015
Posts: 236
Likes: 50
A/C button has no effect?
Hi all.. Wondering if anyone has ever seen this...
I've noticed on my 2014 if I'm driving and press the A/C button to turn off the A/C compressor and just want fresh air from outside, it seems to have no effect. The A/C compressor stays on and it blows ice cold air regardless of the fact that I turn it off with the button and the display screen even says "A/C OFF'.
Anybody ever heard of this? Sounds like a programming issue to me. Maybe I need a software update to fix this?
I've noticed on my 2014 if I'm driving and press the A/C button to turn off the A/C compressor and just want fresh air from outside, it seems to have no effect. The A/C compressor stays on and it blows ice cold air regardless of the fact that I turn it off with the button and the display screen even says "A/C OFF'.
Anybody ever heard of this? Sounds like a programming issue to me. Maybe I need a software update to fix this?
Melting Slicks
Joined: Dec 2014
Posts: 2,778
Likes: 2,306
From: Central UT
Hey Jerry, this is just a guess at this point (I'll check later this afternoon when I 'have' to wash my C7) - what 'mode' do you have the HVAC settings on? I believe if you have it in any of the defrost modes (such as the 'defrost/foot' mode) the a/c compressor will not be allowed to shut off . This is to help remove moisture for defrost purposes. If I'm wrong or that's not the issue, sorry about that. 
Thread Starter
Instructor
Joined: Nov 2015
Posts: 236
Likes: 50
I've never owned a car that behaves like this. Including my C6.
Thread Starter
Instructor
Joined: Nov 2015
Posts: 236
Likes: 50
Hey Jerry, this is just a guess at this point (I'll check later this afternoon when I 'have' to wash my C7) - what 'mode' do you have the HVAC settings on? I believe if you have it in any of the defrost modes (such as the 'defrost/foot' mode) the a/c compressor will not be allowed to shut off . This is to help remove moisture for defrost purposes. If I'm wrong or that's not the issue, sorry about that.
Drifting
Joined: Dec 2015
Posts: 1,410
Likes: 414
From: Germantown Maryland
Same as my Toyota Tacoma. If you dial the temp all the way down it turns on the A/C. It is just a simple shortcut to save you a button press by assuming if you go full cold you want A/C. Up one click on the temp then press the A/C button off. I haven't tried or seen that yet on my Vette but that is how it works on some other vehicles. I find it to be a little annoying.
