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How good is YOUR Climate Control - Temperature Consistency

Gauss Guzzler

Safety Score = 7
Dec 27, 2020
663
852
Thousand Oaks, California
Those with trouble may want to list the type of system they have (heat pump/not), what temperature sensor they have (with/without an intake fan), what mode they use (auto/manual) and whether or not they usually block the temperature sensor with the center console lid.

I have the heat pump, fan-sensor, no lid, always use auto mode, and find the temp control to be excellent.

Though I do miss the nice feature of my old BMW where the "fan speed" control functioned as a "fan aggressiveness" control in auto mode. Sometimes I'm willing to give up a little bit of temperature performance to have less wind/noise, and other times I want it to work harder because I just spent some time outside or the sun is hitting me and I don't necessarily want it warmer/cooler, just more active.
 
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TexasTezla

Member
Feb 28, 2020
340
265
Texas
For me, while voice control is a great option, it is not the method I prefer. When I am in my car, it is actually the most peaceful part of my day where I can get lost in my music (THAT is very important to me, but I am a weirdo). Doing anything via voice control is very disruptive to my experience.

But that's just me.
Don't get too lost in that music...you need to concentrate on the road ;-)
 

Darmie

Super Member
Supporting Member
Jan 13, 2016
2,117
1,420
Clear Lake TX.
Don't get too lost in that music...you need to concentrate on the road ;-)
I'm just lost in the matrix.
1634908239156.png
 

Gauss Guzzler

Safety Score = 7
Dec 27, 2020
663
852
Thousand Oaks, California
Yes, to elaborate on the cabin temperature sensor, it's located on the bottom surface of the screen mount.

Early models have a smooth panel with a simple passive temperature sensor that looks like a button:
Screenshot 2021-10-22 104420.png


And here's the actual sensor, pretty self-explanatory:
Screenshot 2021-10-22 105549.png


Later models use a textured panel with an intake grille region:
Screenshot 2021-10-22 104748.png


And the sensor now features a tiny squirrel cage fan to draw in air (these are actually pretty common):
Screenshot 2021-10-22 110552.png


Unfortunately I don't know when the change was made or if a retrofit is possible.
 

MaskedRacerX

Member
Dec 13, 2020
365
437
Vilano Beach, FL
Outstanding! When you mentioned a fan, it sounded aftermarket.

So I'd __assume__ that drawing in air actively would give it a better sample, and the HVAC could respond more accurately. I'm going to go check mine :D
 

SylvainG

Member
Sep 12, 2021
123
44
Ottawa
My 2002 Honda Odyssey had two temperature sensors. One on the steering column for the ambient air temperature and one on the dash to capture direct sunlight. That one was used by the climate system to know if it needed to push fresh air through the vents based on the temperature difference between the one on the column and the one on the dash. Worked quite well.
 

rjpjnk

Member
Mar 12, 2021
845
466
NJ
Yes, to elaborate on the cabin temperature sensor, it's located on the bottom surface of the screen mount.

Early models have a smooth panel with a simple passive temperature sensor that looks like a button:
View attachment 724348

And here's the actual sensor, pretty self-explanatory:
View attachment 724351

Later models use a textured panel with an intake grille region:
View attachment 724352

And the sensor now features a tiny squirrel cage fan to draw in air (these are actually pretty common):
View attachment 724354

Unfortunately I don't know when the change was made or if a retrofit is possible.
It’s not that simple. My Model Y does in fact have that same sensor with the fan motor. However, even if I disconnect it the AC seems to run same as ever. So there must be other sensors.
I have heard there is also one behind the rear view mirror mount but I didn’t look for that one myself.

Also, when scanning with TesLax app I see several other cabin related temperatures reported. There is a sunlight sensor and even a roof temperature sensor. Some combination of all of these must drive the climate control system.
 

Gauss Guzzler

Safety Score = 7
Dec 27, 2020
663
852
Thousand Oaks, California
Indeed the system is complex and surely utilizes a variety of sensors like humidity, outside air temp, etc. I didn't mean to suggest that the center cabin temp sensor was either a cause or a cure, only that it might be a contributing factor and they must have had a good reason to update to the much more expensive part.
 
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rjpjnk

Member
Mar 12, 2021
845
466
NJ
I agree. Adding the fan probably makes it pretty expensive. Must be important. Wish I understood more about how it all works. But now that the new software seems to have fixed my issues I happy.
 

SylvainG

Member
Sep 12, 2021
123
44
Ottawa
2021.36 has the following in its release note:

Improved temperature consistency throughout the cabin offers more comfort in cold weather.
 

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