2021 Yukon Denali XL HVAC Reset Problem

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DRKRunner

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Hello all! The driver-side right air vent is blowing warm air, while all others are cold. Is there a way to reset the HVAC to recalibrate the blend door? Online tutorials talk about pulling a fuse, but I cannot seem to find any fuse that is related to the HVAC system. Is it possible that it is just low Freon instead of something mechanical? Many thanks in advance for any help!
 

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