Lexus human interface issues and climate control discussion
Redundant buttons negate the whole point. The point is to REDUCE the number of buttons.
We had some time to kill today. So we took some time to look at some cars at the car park. Lots of different brands available to check them out back to back.
Hard to argue with the idea that remote touch criticism world be next to absent if there were redundant buttons. Here is the Lexus ES without remote touch. I guess super rare to find. I would have nothing bad to say if they would just add a few things to keep all people happy. Was unaware you could get a Lexus ES without remote touch.
Pic 1. This is how I just leave it most of the time. Not at 29 of course. And in summer, I change the air flow if AC is on.
Pic 2. The moment I hit auto, AC comes on. Fan goes off. Direction changes.
When you put the front defroster on it overrides auto. Thats why auto turns the defroster off. Some newer cars have a humidity sensor at the top of the windshield (my GS had one) so the auto climate control will work the front defroster too.
Thats why I've said, you don't need the button. It will only cool air when you call for cool air even in manual mode, when its not cooling the air its still de-humidifying the air.
Last edited by SW17LS; Feb 9, 2019 at 09:06 PM.
When you put the front defroster on it overrides auto. Thats why auto turns the defroster off. Some newer cars have a humidity sensor at the top of the windshield (my GS had one) so the auto climate control will work the front defroster too.
Thats why I've said, you don't need the button. It will only cool air when you call for cool air even in manual mode, when its not cooling the air its still de-humidifying the air.
You cannot have AUTO on and A/C off. When you go to make manual adjsutments, such as turning off the A/C compressor or setting the fan speed, you override AUTO. If you have it in AUTO and the system does not need to heat or cool the air to maintain your set temp, you will have unheated and uncooled air, it will still go through the A/C compressor to be de-humidified though.
You cannot have AUTO on and A/C off. When you go to make manual adjsutments, such as turning off the A/C compressor or setting the fan speed, you override AUTO. If you have it in AUTO and the system does not need to heat or cool the air to maintain your set temp, you will have unheated and uncooled air, it will still go through the A/C compressor to be de-humidified though.
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Like I said though, in a frozen climate you should try leaving the A/C compressor on to de-humidify the air.
i assume you do realize that setting it to 29C (84F
) will have NO RELEVANCE since it's -4C outside and likely the temp in the car was under 10C when you got in, especially since you've fixed the fan speed.climate control is pretty simplistic... basically this:
if inside car temp < desired temp, blow hot air as fast as allowed (auto, or set fan speed)
if inside car temp = desired temp, blow same temp air at low speed to circulate
if inside car temp > desired temp, blow cold air as fast as allowed (auto, or set fan speed)
if you set v. high or low temp and FIX the fan speed low, it will obviously take a long time if not 'forever' to get to the desired temp.
i also don't get how the lexus system allows a/c to be turned off in 'auto' mode, which in hot weather basically cripples the system as it can't reach desired temp since ambient air is likely to be too hot to cool the car.
i assume you do realize that setting it to 29C (84F
) will have NO RELEVANCE since it's -4C outside and likely the temp in the car was under 10C when you got in, especially since you've fixed the fan speed.climate control is pretty simplistic... basically this:
if inside car temp < desired temp, blow hot air as fast as allowed (auto, or set fan speed)
if inside car temp = desired temp, blow same temp air at low speed to circulate
if inside car temp > desired temp, blow cold air as fast as allowed (auto, or set fan speed)
if you set v. high or low temp and FIX the fan speed low, it will obviously take a long time if not 'forever' to get to the desired temp.
i also don't get how the lexus system allows a/c to be turned off in 'auto' mode, which in hot weather basically cripples the system as it can't reach desired temp since ambient air is likely to be too hot to cool the car.












