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GMC Sierra Code U1510: Shutters are stuck open

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    • #820836
      Noah34
      Participant

      Hi there. My code reader is saying U1510 and that I have an issue with my HVAC unit in my truck. My Shutters are also stuck open. Would I have to replace the whole shutter assembly system or just the module that’s behind the glove box?

    • #820978
      Parts Man1
      Participant

      Cant answer the question unless you find the source of the problem

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