AC turned on during auto mode
#1
Driver School Candidate
Thread Starter
AC turned on during auto mode
My AC seems to be turned on always during auto mode. It is winter time and I don't need the AC on. I can set to 80 degrees internally and AC will still be on. The only way to turn off AC seems to be turn off AUTO mode but I feel like I missing the best feature.
Does everyone run in AUTO mode with AC on or in Manual mode?
AC is on
Does everyone run in AUTO mode with AC on or in Manual mode?
AC is on
#3
Lexus Champion
lots of information on this. Air Conditioner doesn't mean cold air, it means conditioned (i.e. clean) air.
the car uses the AC compressor as a dehumidifier as well as to cool the air. This helps keep mold out of the vents and related system parts.
the car uses the AC compressor as a dehumidifier as well as to cool the air. This helps keep mold out of the vents and related system parts.
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aypues (02-21-19)
#4
Lexus Test Driver
All cars these days pretty much do this. Now stop listening to AM radio
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signdetres (07-18-20)
#5
#6
The A/C off button in the Climate screen should be used if you are driving with the windows/sunroof open.
Notice however that when you tap HVAC "Auto" that the A/C comes back on.
Cycling the compressor during the winter keeps lubricate circulating through the pump. My Dad would
never press the A/C button between October and April and Mom would jab it on the first hot spring day.
Dad replaced at least two (Plymouth) compressors cursing the whole while about junk MoPar parts...
Notice however that when you tap HVAC "Auto" that the A/C comes back on.
Cycling the compressor during the winter keeps lubricate circulating through the pump. My Dad would
never press the A/C button between October and April and Mom would jab it on the first hot spring day.
Dad replaced at least two (Plymouth) compressors cursing the whole while about junk MoPar parts...
#7
Lexus Test Driver
AC always turns back on if you hit auto mode even for heating. My 2014 ES300h has a separate AC button so I can see it turn on. It uses only 100-200W in winter compared to 1500W in summer for cooling. The AC compressor runs to cool down and dehumidify cabin air before it's warmed up again by the heater core, otherwise the cabin quickly fogs up from the moisture in occupants' breath. Fogged up windows in a stationary car usually means one thing 😁
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signdetres (07-18-20)
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#8
Driver School Candidate
Thread Starter
AC always turns back on if you hit auto mode even for heating. My 2014 ES300h has a separate AC button so I can see it turn on. It uses only 100-200W in winter compared to 1500W in summer for cooling. The AC compressor runs to cool down and dehumidify cabin air before it's warmed up again by the heater core, otherwise the cabin quickly fogs up from the moisture in occupants' breath. Fogged up windows in a stationary car usually means one thing 😁
i guess what’s missing most is the AC button. I wish it was there. Right now turning off the AC is a pain using the touch Navi pad and going to so many menus.
#9
#10
Driver School Candidate
Thread Starter
I live in Southern California where temp is around 60 degrees now. I open the windows and moonroof sometimes so I like to turn off the AC.
both my wife and I are very picky about this. I guess it is just a bad or good habit depending how you look at it.
both my wife and I are very picky about this. I guess it is just a bad or good habit depending how you look at it.
#11
Ahh. Looking out the window at a light sleet starting to fall, open windows did not come to mind. Enjoy the wind and sun.
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mcomer (02-18-19)
#12
Lexus Champion
now on my '39 Ford Tudor, only AC I have is good old 4/60 AC.. -- 4 windows down 60 mph..
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#13
Lexus Test Driver
put it on auto and let it do its thing, I've not touched the AC controls on any car I have owned in 10 years, all with auto, I set the temp to 72° and leave it on Auto. I also live in SoCal, I open the sunroof and windows nearly every drive, but leave the HVAC on auto, I see really no reason to mess with it.
now on my '39 Ford Tudor, only AC I have is good old 4/60 AC.. -- 4 windows down 60 mph..
now on my '39 Ford Tudor, only AC I have is good old 4/60 AC.. -- 4 windows down 60 mph..
#14
Lexus Champion
I built it as a street rod back in the 1990s, recently it has required some TLC. frozen door latches (80 years old), some leaking in the trunk after the last rains in SoCal (40 year old weather stripping), Carb rebuild, etc. things you would expect after 20+ years since the last build, and 40- 80 years on some of the original parts.
#15
Lexus Test Driver
I built it as a street rod back in the 1990s, recently it has required some TLC. frozen door latches (80 years old), some leaking in the trunk after the last rains in SoCal (40 year old weather stripping), Carb rebuild, etc. things you would expect after 20+ years since the last build, and 40- 80 years on some of the original parts.
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mjeds (02-19-19)