A/C button

[vraa]

In software engineering, we usually frown upon junior code monkeys using this technique called a tri-state boolean. A boolean variable is either true or false. But a tri-state Boolean can be true, false, or null. This usually causes confusion and makes things overly complex.

I don't think japan excels at software at all... Toyota has a history of bad code killing people

 

[lowrange44]

Thanks for the pics and confirmation. I believe you…. I just don’t understand why it behaves differently than my 25 OT+.

Mine behaves as all other Toyota vehicles I’ve had since the 90’s. AC button (physical or virtual) controls AC on/off in any/all modes.

Maybe there are more setting combos that I haven’t tried yet like recirc on by default or something like that.

The only time I experienced the AC button blue and not turing off when I pressed it was when the cool box was on.

I’ll go outside later and get a screenshot of the software versions for comparison if you’d like.

I've lost track of who's saying what, but I just went out and triple checked. First pic is after starting vehicle with climate on Auto mode. AC is definitely on and blowing ice cold air (it's 85 degrees outside). NO AC light.

Second pic is after toggling the AC to off. The grey bar is illuminated. You could hear the compressor shut off, and vents are blowing warm air.

 

[rent]

The more I read about this the more irritating this is becoming. Have a button, let me turn it on or off. There sound be no other numerations, variations, permutations, escalation, and what ever else rhymes with that...

this stultification that only results in frustration

 

[rent]

I don’t know what to tell you other than maybe it’s a software version difference…

I just performed the same test with pics and videos. Regardless of auto/lo/max cool…. If I touch the AC button and it goes from blue to grayed out, the AC turns off. Press it again, it turns blue and the AC turns on. Fan speed and air temp exiting the vents confirms this. Mine behaves exactly as outlined in the owners manual. Maybe take yours in for service to see what’s wrong

This is intriguing. When you have a moment could you please confirm that: if you repeatedly press on the AC button, it does not toggle through three different stages: A) having a blue indicator, B) having a gray indicator, or C) no indicator at all?

From what you stated, it sounds like that you do not have a stage where the AC button does not have an indicator on top - it's always either blue or gray.

Also, could you check if you have the following turned on or off:

1) Climate concierge
2) S-flow (I don't think it matters, but what the heck)

Thanks!

 

[rent]

25 OT+. I verified it yesterday…. Blue light is always illuminated when AC is on. The owners manual confirms that this is expected behavior

The owner manual is saying if the AC indicator is off - and by that I understand it to mean there is a gray indicator on top of the AC button - then the AC is off and you get ambient air. This is definitely true.

It is also true that if there is a blue indicator on top of the AC button, then AC is on and you get cold air.

But the converse - that when the AC is on, there is always a blue indicator - is not necessarily true (at least in some of our cases). Because it's possible to have the AC on without any indicator on the button since it's in Auto mode. This is what frustrates us.

 

[jclaffee]

This is intriguing. When you have a moment could you please confirm that: if you repeatedly press on the AC button, it does not toggle through three different stages: A) having a blue indicator, B) having a gray indicator, or C) no indicator at all?

From what you stated, it sounds like that you do not have a stage where the AC button does not have an indicator on top - it's always either blue or gray.

Also, could you check if you have the following turned on or off:

1) Climate concierge
2) S-flow (I don't think it matters, but what the heck)

Thanks!

I can confirm that you (or at least I) cannot toggle through the three stages. Once I press the A/C "button" I've manually taken it out of Auto or Max Cool modes and I only have 2 options - gray for off or blue for on. The only time I have seen the no indicator scenario is when I'm using Auto or Max Cool and I haven't pressed the A/C button at all. Concierge and S-Flow both off in my case.

 

[jclaffee]

The owner manual is saying if the AC indicator is off - and by that I understand it to mean there is a gray indicator on top of the AC button - then the AC is off and you get ambient air. This is definitely true.

It is also true that if there is a blue indicator on top of the AC button, then AC is on and you get cold air.

But the converse - that when the AC is on, there is always a blue indicator - is not necessarily true (at least in some of our cases). Because it's possible to have the AC on without any indicator on the button since it's in Auto mode. This is what frustrates us.

View attachment 14156

This is my understanding as well.

 

[lowrange44]

The owner manual is saying if the AC indicator is off - and by that I understand it to mean there is a gray indicator on top of the AC button - then the AC is off and you get ambient air. This is definitely true.

It is also true that if there is a blue indicator on top of the AC button, then AC is on and you get cold air.

But the converse - that when the AC is on, there is always a blue indicator - is not necessarily true (at least in some of our cases). Because it's possible to have the AC on without any indicator on the button since it's in Auto mode. This is what frustrates us.

View attachment 14156

I totally get it…. The weird thing is on mine, regardless of any/all of the auto settings enabled or disabled, if the AC is on then the blue indicator is also on. I can’t recreate the scenario of blue light off but AC on.

That’s why I thought there might be a difference in software versions between my truck and the others that have AC on with no blue indicator

 

[Bluegill]

I don't think I've ever noticed a gray blip above the AC button, only blue. My experience has been that my AC is nearly always ON, blue light or no blue light. I don't ever mess with it, I just let Auto do its thing and I crank the temperature dial down when I'm hot. When I'm in Auto mode, mine is most certainly blowing ice cold air with the AC on and no blue blip illuminated.

 

[jclaffee]

I don't think I've ever noticed a gray blip above the AC button, only blue. My experience has been that my AC is nearly always ON, blue light or no blue light. I don't ever mess with it, I just let Auto do its thing and I crank the temperature dial down when I'm hot. When I'm in Auto mode, mine is most certainly blowing ice cold air with the AC on and no blue blip illuminated.

After reading the horror stories here about the climate system (before I took delivery), I disabled everything and never went near the Auto function. But after a few months over a hot summer I've found that Auto works just fine. Just dial a temp. If it's too warm turn it down a little. More often happens that my hands get cold from the dash vents than the cabin is too warm.

 

[Bluegill]

Yeah, I hear you - depending on where you place your hands on the wheel and where you direct the vents, your fingers go numb!