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Discussion Starter · #1 ·
This question was prompted by the one about using the fan. My climate control's temp setting is at 75 degrees, which on a cool but comfortable morning causes the heater to come on. Is there a way to reset that default to a lower temperature?
 

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Either use the buttons on your steering wheel to tweak it up/down a degree per push or use the climate screen! The buttons on the wheel are the two just below the AC On/Off.
 

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Discussion Starter · #4 ·
Sorry, I did not make my question clear. I never put my setting at 75 degrees. Whenever I switch on the AC for the first time in a given drive, the system has defaulted to 75 and I have to use the buttons on the wheel or the tabs on the climate screen to move it down to where I want it. Why does it re-set itself at 75, and can I get it to default to a lower temp?
 

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Jon Miller said:
Sorry, I did not make my question clear. I never put my setting at 75 degrees. Whenever I switch on the AC for the first time in a given drive, the system has defaulted to 75 and I have to use the buttons on the wheel or the tabs on the climate screen to move it down to where I want it. Why does it re-set itself at 75, and can I get it to default to a lower temp?
That's weird :shock: Mine (04) always stays at the last temp I set it at, even if the car has been unused for long period of time. I have never heard this one before.

Sounds like you got the "default to 75" extra charge feature for no charge :lol:

Seriously, tell/call/ask your service advisor/Prius tech. My guess is there
is a way they can set it to default or not, unless the 05 is different than the 04.
 

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Discussion Starter · #6 ·
Seriously, tell/call/ask your service advisor/Prius tech. My guess is there is a way they can set it to default or not, unless the 05 is different than the 04.
I am coming up on the first 5000 service and will definitely put the question to them. It's not a fatal flaw, but can be irritating.
 

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Probably the Nav lady has her own opinion on where the themostat should be. Don't argue or change it. It will only make your life more difficult.

The voice of experience. :wink:
 

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According to what I have tested with my Prius, is that the auto A/C does not increase the petrol consumption. I have however, done the testng only on highways with cruiser set at 80km/h or 100km/h.
 

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I have an '05 and it defaults to whatever I last set the temp at... something is wrong....
 

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"Probably the Nav lady has her own opinion on where the themostat should be."

Yes, but that would explain not a preference for 75, but a continuous changing of the "right" temperature, always too cold or too hot. His car is behaving differently...
 

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Check the ECU-B 15A fuse. I am suspecting the A/C Amplifier (ECU) is not receiving const B+. Otherwise, I agree, see the dealer. That's not normal.
 

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Temperature Setting

My 2005 Prius remembers the temperature I set it at.

I would like a way to set it to heat below 70 and cool above 80. Seems like it could be done just with a software change.
 

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I guess technically that's true if I have the desired temperature set at any value between 70 and 80. Perhaps it would be clearer if I said it would be nice if there was a minimum and maximum desired temperature instead of just a single number. Like Mr. Miller, I too have had the heater come on when it was around 70 when I'd rather it not bother.
 

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In other words, you would like to disable heat (if the temp is too low, do nothing), or AC (if the temp is too high, do nothing) like home auto thermostats (Off, Cool, Auto, Heat)? You can disable the AC through the display, though you can't disable the heat.
 

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Yea, we want an OFF button :)
 
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