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Help me understand the rationale behind on/off with doors

insaneoctane

Active Member
Apr 6, 2016
3,378
5,229
Southern California
For the life of me I cant figure out this on/off with the door thing. To the point that I wonder if all my sensors are working properly? So, because it's 120 degrees in the car, I turn the AC on while walking to the car. Great. If the passenger gets in, the AC keeps going, until they shut the door. BOOM, car (and AC) turn off. Damn. Touch the screen, car and AC come back on. Rear occupant gets in, when they shut their door, BOOM, car turns off. Damn. Touch the screen, car and AC come back on. Driver finally gets in, when they shut the door, AC turns off, but car stays on and AC restart automatically! So, I hope someone can explain whats going on....although, regardless, I can't imagine this is desired behavior!
 
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eSpiritIV

Member
Mar 24, 2016
434
229
Portland, OR
I dont have my car yet but sounds like a dumb behavior. I would first off send a feature request to Tesla telling them you want to be able to have AC stay on.
I wonder if it has to do with the "overheat protection" mode being turned off in your car? not sure. maybe another owner has some ideas for you.
 

Marsnaut

Member
Apr 7, 2016
311
276
NYC
It has something to do with not detecting someone in the driver's seat. Definitely an annoying occurrence especially when the driver is not in the car while passengers are staying behind.

"It's not a bug, it's a feature."
 

Trevor B

Active Member
Apr 2, 2016
1,160
629
USA
For the life of me I cant figure out this on/off with the door thing. To the point that I wonder if all my sensors are working properly? So, because it's 120 degrees in the car, I turn the AC on while walking to the car. Great. If the passenger gets in, the AC keeps going, until they shut the door. BOOM, car (and AC) turn off. Damn. Touch the screen, car and AC come back on. Rear occupant gets in, when they shut their door, BOOM, car turns off. Damn. Touch the screen, car and AC come back on. Driver finally gets in, when they shut the door, AC turns off, but car stays on and AC restart automatically! So, I hope someone can explain whats going on....although, regardless, I can't imagine this is desired behavior!

TL;dr

What exactly is the problem? I got lost amidst all the BOOMs
 

kev1n

Active Member
Nov 17, 2016
1,300
911
SF Bay Area
that is the same behavior i experience. like someone else mentioned, probably because driver left the car so it thinks no one is in the car and will probably get ready to lock when you walk away type of deal.
 

chronopc

Active Member
Jul 8, 2017
2,873
2,718
California
For the life of me I cant figure out this on/off with the door thing. To the point that I wonder if all my sensors are working properly? So, because it's 120 degrees in the car, I turn the AC on while walking to the car. Great. If the passenger gets in, the AC keeps going, until they shut the door. BOOM, car (and AC) turn off. Damn. Touch the screen, car and AC come back on. Rear occupant gets in, when they shut their door, BOOM, car turns off. Damn. Touch the screen, car and AC come back on. Driver finally gets in, when they shut the door, AC turns off, but car stays on and AC restart automatically! So, I hope someone can explain whats going on....although, regardless, I can't imagine this is desired behavior!
I guess the car wants the driver to be in the car first. There is a lot of annoying things about this car when there is no one sitting in the driver's seat.
 

ilg

Some guy on the Internet.
Feb 8, 2013
132
201
Maryland
Model S works the same way, as far as I can tell. I've never really understood why and never liked it, but it seems to be "normal."
 

Jrzapata

Member
Jun 24, 2018
144
176
Texas
My car does exactly the same, so I don't think is a sensor problem. Could this be so people don't plan on leaving someone unattended in the car? like say a child or a pet?
 

AltLogic

Member
May 14, 2018
252
307
SoCal
Still better than 90% of the other cars you can buy. The driver has to get in and start the vehicle to get the AC running in everything else I’ve ever owned. Of course I’ve owned other cars where you can pre cool via app or pressing buttons on the fob. But it is almost the same as using the phone app to me.
 

insaneoctane

Active Member
Apr 6, 2016
3,378
5,229
Southern California
Still better than 90% of the other cars you can buy. The driver has to get in and start the vehicle to get the AC running in everything else I’ve ever owned. Of course I’ve owned other cars where you can pre cool via app or pressing buttons on the fob. But it is almost the same as using the phone app to me.
Fair, but with power comes great responsibility ....
 

pcpro

Member
Oct 31, 2017
85
48
TX
Let’s say you have a backpack in your front passenger seat and leave the car. You want your car to run with the A/C on all the time?
I get what you are saying and it’s simple in other cars as you just leave the car running. But there is no on/off in a Tesla, so this is the way it works. It’s a feature and probably nothing that will change soon. But I suppose you could press a button on the screen that says leave on for x minutes. That would work. And there is something coming soon about party/camping mode that may assist here
 

drawfour

Member
Mar 10, 2018
774
708
Seattle, WA
Let’s say you have a backpack in your front passenger seat and leave the car. You want your car to run with the A/C on all the time?
I get what you are saying and it’s simple in other cars as you just leave the car running. But there is no on/off in a Tesla, so this is the way it works. It’s a feature and probably nothing that will change soon. But I suppose you could press a button on the screen that says leave on for x minutes. That would work. And there is something coming soon about party/camping mode that may assist here
If I'm pre-cooling (I've used the app to turn on A/C at a desired temperature), and I walk to the car and open the door to put my kid in, I expect the A/C will continue to run after I shut the door. Because I have 2 kids. And that means I have to get the second kid in and strapped in too. I also have to load the groceries. I will get my kids in and buckled before I put the groceries in, and as long as my phone is within range of the car, that A/C should continue to run!
 

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