"Reduced Noise A/C" setting -- what does it do?

Discussion in 'Gen 3 Prius Main Forum' started by Johnny Cakes, Oct 28, 2019.

  1. Johnny Cakes

    Johnny Cakes Senior Member

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    I was doing customizations with the Carista OBD-II app (e.g. beep once in reverse, one key fob press opens all doors, etc.)

    One of the settings is:
    A/C compressor noise reduction
    Enabled / Disabled

    Obviously this has something to do with the A/C compressor noise, but any idea what it is changing to achieve a noise reduction?
     
    #1 Johnny Cakes, Oct 28, 2019
    Last edited: Oct 28, 2019
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  2. ASRDogman

    ASRDogman Senior Member

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    Well ddduuuuuuu..... compressor noise! ha ha ha ha ha ha ha :confused:

    Because some people want more noise!!!!

    Not making fun.... only a joke...

     
    #2 ASRDogman, Oct 28, 2019
    Last edited: Oct 29, 2019
  3. Tideland Prius

    Tideland Prius Moderator of the North
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    I wonder if it’s something to do with Eco mode? (How Eco mode reduces the max electricity consumption threshold of the compressor which I guess in theory reduce the max fan speed and this reduce the noise.
     
    #3 Tideland Prius, Oct 29, 2019
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  4. Elektroingenieur

    Elektroingenieur Senior Member

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    The Repair Manual (more info) has a list of all the settings, under Introduction: Repair Instruction: Customize Parameters. “Noise and Vibration Reduction” is a “Function to change speed of the compressor when item is on” (emphasis added), and the default is OFF.
     
    #4 Elektroingenieur, Oct 29, 2019
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  5. Tideland Prius

    Tideland Prius Moderator of the North
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    So, what’s the point of that option? It’s only loud when you’re standing next to it outside.
     
    #5 Tideland Prius, Oct 29, 2019
  6. Grit

    Grit Senior Member

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    Loud and proud!!!!
     
    #6 Grit, Oct 29, 2019
  7. tvpierce

    tvpierce Senior Member

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    So it's like a fart can muffler for your AC? All the kids are going to be disabling it on their pimped out Prii!:D
     
    #7 tvpierce, Nov 2, 2019
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