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Compustar Remote Start - 2022 Prius Prime

Discussion in 'Prime Accessories and Modifications' started by eow, Jan 18, 2022.

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  1. alinica2001

    alinica2001 Member

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    Besides outside/inside temperatures, PP is also monitoring the humidity inside cabin. There is a sensor inside for humidity. Probably that's why you have different behavior at the same temperature.
     
    #41 alinica2001, Feb 13, 2022
  2. eow

    eow Member

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    You make a good point about humidity detection and difference in behaviour.


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    #42 eow, Feb 13, 2022
  3. eow

    eow Member

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    No new observations, more of the same given that the temperatures are similar to before.

    Hopefully it starts warming up soon so I can witness how the remote start system behaves with temperatures above freezing.


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    #43 eow, Feb 13, 2022
  4. eow

    eow Member

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    Finally got up to 17 C today.

    Using the Compustar remote start resulted in the front defrost coming on with the a/c. But the ICE did NOT start.

    IMG_5024.jpg

    So it looks like I will be able to also use the Compustar remote start to cool the cabin when it gets hot.


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    #44 eow, May 4, 2022
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  5. Salamander_King

    Salamander_King Senior Member

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    Interesting. That brings me to a question. Would PP starts the engine automatically if I hit the front windshield defrost button in summer? I know in winter, it is an automatic engine on. But, I have never tried using the front defroster in summer. If it does, then I wonder how Compustar makes it possible to start the front defroster and not start the engine?
     
    #45 Salamander_King, May 4, 2022
    Last edited: May 5, 2022
  6. eow

    eow Member

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    With 18C ambient and temp set at 17C, the ICE does NOT come on when the front window defrost is selected.


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    #46 eow, May 5, 2022
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  7. Salamander_King

    Salamander_King Senior Member

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    What happens if the temp was set at 20C? Does it start the engine if you press the front window defrost?
     
    #47 Salamander_King, May 5, 2022
  8. eow

    eow Member

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    Another data point from this morning:

    With 7C ambient and temp set at 17C, the ICE started when the defrost was selected.


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    #48 eow, May 6, 2022
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  9. Salamander_King

    Salamander_King Senior Member

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    Makes sense that the engine turns on only if it needs extra heat from the engine. As long as the ambient temp is higher than the set temperature, the car does not need to use the engine to be turned on even if you turn on the front defroster switch. Good to know.
     
    #49 Salamander_King, May 6, 2022
  10. eow

    eow Member

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    That is correct.


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    #50 eow, May 6, 2022
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  11. eow

    eow Member

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    A summer update:

    Nearly the end of the summer, and I have yet to have a reason to use the Compustar remote starter since last winter.

    The heat pump is so quick to cool the cabin that it is comfortable in the vehicle within minutes of starting to drive.

    I do not expect to use the Compustar again until we have frigid cold temps (less than -20C) again . That is when the Prime does not go into EV mode anyway and there is no value in charging the traction battery.


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    #51 eow, Aug 13, 2022
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