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How come air only blows out the defrost vents and not out the a/c vents
2016 Chevrolet Silverado 3500 HD

How come air only blows out the defrost vents and not out the a/c vents

(2016 Chevrolet Silverado 3500 HD)
It blows cold but not out of the vents
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on October 27, 2016
i could understand that happening on a 15 year old truck,but not a new truck,take it back to the dealer and have them fix it under the warranty.
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on October 27, 2016
i could understand that happening on a 15 year old truck,but not a new truck,take it back to the dealer and have them fix it under the warranty.
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of GT Service Center on October 27, 2016
Bruners or Bayer motors will be glad to help you. More then likely a mode door actuator or a reprogramming issue.
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