Just curious if this is normal about HVAC controls

[gooffeyguy]

When switching from something other than AUTO to AUTO, does the AC (snowflake) come on/light up automatically?

For instance, if it's cold and I have DEFROST on, then switch to AUTO, the AC comes on too and I usually switch it off.

2001 Yukon SLT
2012 Yukon XL Denali
2011 Yukon Denali RIP 5/20/18

Sent from my SM-G930V using Tapatalk

 

[Doubeleive]

mine does, I believe it is a dehumidifier feature of some sort I just hit the button and turn it off

 

[swathdiver]

If the temp is over about 40, then the compressor will come on when you hit Auto.

 

[gooffeyguy]

Who needs AC when it's 40 outside....lol

GM engineers

2001 Yukon SLT
2012 Yukon XL Denali
2011 Yukon Denali RIP 5/20/18

Sent from my SM-G930V using Tapatalk

 

[Danny3737]

Who needs AC when it's 40 outside....lol

GM engineers

2001 Yukon SLT
2012 Yukon XL Denali
2011 Yukon Denali RIP 5/20/18

Sent from my SM-G930V using Tapatalk

It does help to clear the fog off the windshield

 

[Doubeleive]

It does help to clear the fog off the windshield

ya I think that's the dehumidifier portion of it since there is usually a wet film on the inside of the window depending on the atmospheric conditions

 

[adventurenali92]

Correct, auto to the actual defrost button put the snowflake on and the compressor will kick in. If you got from ac to just heat and set the fan selection to the defrost icon without lighting up the defrost button, then it will stay in heat and not kick the ac on.