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I have a 2006 silverado 1500 Z71 LT. It is doing something weird that i dont think is right. when i push the recycled air button on the dash that is next to the a/c button the a/c kicks on even though the a/c button is off. what could cause this

thanks
 

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Are you referring to the recirculation mode? When the recirculation button is pressed, an indicator light will come on. This mode keeps outside air from entering the vehicle. It can be used to reduce outside air and prevent odors from entering your vehicle. Recirculation may also help cool the air inside your vehicle more quickly once the temperature inside the vehicle is less than the outside temperature. The recirculation mode cannot be used with floor, defrost, or defogging modes. If you try to select recirculation in one of those modes, the indicator will flash three times and turn off. The air conditioning compressor will also come on when this mode is activated. While in recirculation mode the windows may fog when the weather is cold and damp. To clear the fog, select either the defog or defrost mode and increase the fan speed. Recirculation mode can be turned off by pressing the button again, or turning off the engine. This information can also be found on page 219 of your owner’s manual. If you have further questions, please feel free to contact me by private message. Thank you.

Tricia, GM Customer Service.
 

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I am having the same problem, if I have the fan turned on with the recirculation button on but the A/C button off the A/C compressor still works.... If I have the fan on but in fresh air mode the compressor is off.... Any ideas?
 

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I am having the same problem, if I have the fan turned on with the recirculation button on but the A/C button off the A/C compressor still works.... If I have the fan on but in fresh air mode the compressor is off.... Any ideas?
I would be happy to look into this for you with your VIN. Please feel free to contact me privately. Thank you in advance.

Tricia, GM Customer Service.
 

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My 98 burb does the same thing - it has since the day I drove it off the lot 13 years ago. When you push the recirculation button in, the a/c compressor light comes on. That is normal IMO. If the cabin air is reticulating and no fresh air coming in the air is going to get stale in a hurry.
 

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My 98 burb does the same thing - it has since the day I drove it off the lot 13 years ago. When you push the recirculation button in, the a/c compressor light comes on. That is normal IMO. If the cabin air is reticulating and no fresh air coming in the air is going to get stale in a hurry.
My A/C works even when the A/C light is off if its in Recirc mode.... pretty sure its something that has just started happening recently...
 
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