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Digital dual climate controls hvac frozen

Riku

By Riku
in 2000-2014 Silverado & Sierra HD

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Riku New Member

Riku

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New at forums. I have 2013 gmc 2500 that is having hvac freezing issues. After a while of driving I can't change temp, speed, direction, or off. All buttons do nothing. I can turn off truck and turn it back on and everything works again for a few minutes. Went away for few months and randomly came back. 

 

Side note the outside temp shows blank lines on dash cluster randomly then shows temp outside. I don't know if this is a part of issue or something else. Thanks for any help. 

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