Weird Climate Control Problem
Thread Starter
Rookie
Joined: Nov 2002
Posts: 78
Likes: 1
From: NJ
Weird Climate Control Problem
I usually set my climate control to 78 degrees and leave it on Auto, but whenever I leave the car for more than 5 hours then the climate control somehow resets itself.
The "Auto" light would stay illuminated for about 15 seconds, then it turns off and "Air Conditioner Off" flashes on the Nav screen. Then when I press the "Auto" button again, the climate displays 75 degrees. This has happened everyday for the last 3 weeks or so. Am I the only one experiencing this?
The "Auto" light would stay illuminated for about 15 seconds, then it turns off and "Air Conditioner Off" flashes on the Nav screen. Then when I press the "Auto" button again, the climate displays 75 degrees. This has happened everyday for the last 3 weeks or so. Am I the only one experiencing this?
Pole Position
Joined: Aug 2007
Posts: 395
Likes: 1
From: LITHUANIA, Europe
I usually set my climate control to 78 degrees and leave it on Auto, but whenever I leave the car for more than 5 hours then the climate control somehow resets itself.
The "Auto" light would stay illuminated for about 15 seconds, then it turns off and "Air Conditioner Off" flashes on the Nav screen. Then when I press the "Auto" button again, the climate displays 75 degrees. This has happened everyday for the last 3 weeks or so. Am I the only one experiencing this?
The "Auto" light would stay illuminated for about 15 seconds, then it turns off and "Air Conditioner Off" flashes on the Nav screen. Then when I press the "Auto" button again, the climate displays 75 degrees. This has happened everyday for the last 3 weeks or so. Am I the only one experiencing this?
I had resently changed heater computer, because it malfunctioned in some way, that all windows started to fog, and freeze from inside (as it was -10 Celcius)....computer showed some errors that heaters motors that control air flow for some reason had malfuntioned at that time...
so dealer didn't risked to wait for another time to have it malfuntion and changed computer, that controls heater...
Thread Starter
Rookie
Joined: Nov 2002
Posts: 78
Likes: 1
From: NJ
Driver School Candidate
Joined: Jun 2010
Posts: 11
Likes: 0
From: PA
My problem was with my installer of my Ipod unit which was wired to my glove compartment. The installer pulled the wiring thru the AC filter door. When the car started the AC door would try to close but could not. The result would be the AC would shut off, until I pressed the auto button again. I am going to get my money back from the installer. The dealer charged me two hours to re-route my wiring with clamps. The dealership probably spend a day figuring out the problem.....I think I got off easy with them only charging me two hours.
definitely get your money back!
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Driver School Candidate
Joined: Jul 2007
Posts: 20
Likes: 3
From: VA
As soon as you start the car, AUTO light would come on but no lights on recirc/auto/fresh air button. And the fan would not run and no driver/passenger temp display either. Looked like the whole climate control system was in a shutdown mode. After 15 seconds or so, climate control would come on resetted to 75 degrees and would forget my previous settings when I stopped the car. It was very easily reproduceable every time after I shut down and locked the car.
I had not broken the recirc/fresh door infront of the filter as I was very particular about it and read all the instructions before replacing the filter.
My fix was to take the filter out of its plastic casing and re-install it with "TOYOTA" "MADE IN USA" and "UP" printed on the filter to face the rear side of casing. Before it was towards the front side of casing. I had noticed it when I took the previous original filter out but did not think it would matter which way the filter goes as long as "UP" is actually pointing "UP".
Ironically the car has some sensitive sensors that detect may be the filter is not there I think. I re-installed it correctly and seated it above the blower pressing all four sides. Need skinny hands to get in the back of it. Since then its fixed and climate control works normally as before.
Driver
Joined: Apr 2008
Posts: 112
Likes: 1
From: ca
I had the same issue after replacing my LS460L cabin air filter.
As soon as you start the car, AUTO light would come on but no lights on recirc/auto/fresh air button. And the fan would not run and no driver/passenger temp display either. Looked like the whole climate control system was in a shutdown mode. After 15 seconds or so, climate control would come on resetted to 75 degrees and would forget my previous settings when I stopped the car. It was very easily reproduceable every time after I shut down and locked the car.
I had not broken the recirc/fresh door infront of the filter as I was very particular about it and read all the instructions before replacing the filter.
My fix was to take the filter out of its plastic casing and re-install it with "TOYOTA" "MADE IN USA" and "UP" printed on the filter to face the rear side of casing. Before it was towards the front side of casing. I had noticed it when I took the previous original filter out but did not think it would matter which way the filter goes as long as "UP" is actually pointing "UP".
Ironically the car has some sensitive sensors that detect may be the filter is not there I think. I re-installed it correctly and seated it above the blower pressing all four sides. Need skinny hands to get in the back of it. Since then its fixed and climate control works normally as before.
As soon as you start the car, AUTO light would come on but no lights on recirc/auto/fresh air button. And the fan would not run and no driver/passenger temp display either. Looked like the whole climate control system was in a shutdown mode. After 15 seconds or so, climate control would come on resetted to 75 degrees and would forget my previous settings when I stopped the car. It was very easily reproduceable every time after I shut down and locked the car.
I had not broken the recirc/fresh door infront of the filter as I was very particular about it and read all the instructions before replacing the filter.
My fix was to take the filter out of its plastic casing and re-install it with "TOYOTA" "MADE IN USA" and "UP" printed on the filter to face the rear side of casing. Before it was towards the front side of casing. I had noticed it when I took the previous original filter out but did not think it would matter which way the filter goes as long as "UP" is actually pointing "UP".
Ironically the car has some sensitive sensors that detect may be the filter is not there I think. I re-installed it correctly and seated it above the blower pressing all four sides. Need skinny hands to get in the back of it. Since then its fixed and climate control works normally as before.
my auto button is lit up and all other climate control buttons are off. The temperature settings are blank just like you described. I'm going to attempt your filter change/fix hoping this will fix it also. I bought the car used so I have not touched the filter, but maybe the previous owner did the change incorrectly?
Driver School Candidate
Joined: Apr 2013
Posts: 7
Likes: 0
From: pa
I also had this problem after local garage changed A/C filter. I took it back to them and they managed to remove and reset door. Didn't cost anything and they stuck a large label on the black door cover 'PUSH RECIRC BUTTON BEFORE REMOVING DOOR'. Seems like Lexus could do this and save everyone grief!
Driver
Joined: Apr 2008
Posts: 112
Likes: 1
From: ca
I also had this problem after local garage changed A/C filter. I took it back to them and they managed to remove and reset door. Didn't cost anything and they stuck a large label on the black door cover 'PUSH RECIRC BUTTON BEFORE REMOVING DOOR'. Seems like Lexus could do this and save everyone grief!
Rookie
Joined: Dec 2010
Posts: 66
Likes: 4
From: Ohio
I had the same issue after replacing my LS460L cabin air filter.
As soon as you start the car, AUTO light would come on but no lights on recirc/auto/fresh air button. And the fan would not run and no driver/passenger temp display either. Looked like the whole climate control system was in a shutdown mode. After 15 seconds or so, climate control would come on resetted to 75 degrees and would forget my previous settings when I stopped the car. It was very easily reproduceable every time after I shut down and locked the car.
I had not broken the recirc/fresh door infront of the filter as I was very particular about it and read all the instructions before replacing the filter.
My fix was to take the filter out of its plastic casing and re-install it with "TOYOTA" "MADE IN USA" and "UP" printed on the filter to face the rear side of casing. Before it was towards the front side of casing. I had noticed it when I took the previous original filter out but did not think it would matter which way the filter goes as long as "UP" is actually pointing "UP".
Ironically the car has some sensitive sensors that detect may be the filter is not there I think. I re-installed it correctly and seated it above the blower pressing all four sides. Need skinny hands to get in the back of it. Since then its fixed and climate control works normally as before.
As soon as you start the car, AUTO light would come on but no lights on recirc/auto/fresh air button. And the fan would not run and no driver/passenger temp display either. Looked like the whole climate control system was in a shutdown mode. After 15 seconds or so, climate control would come on resetted to 75 degrees and would forget my previous settings when I stopped the car. It was very easily reproduceable every time after I shut down and locked the car.
I had not broken the recirc/fresh door infront of the filter as I was very particular about it and read all the instructions before replacing the filter.
My fix was to take the filter out of its plastic casing and re-install it with "TOYOTA" "MADE IN USA" and "UP" printed on the filter to face the rear side of casing. Before it was towards the front side of casing. I had noticed it when I took the previous original filter out but did not think it would matter which way the filter goes as long as "UP" is actually pointing "UP".
Ironically the car has some sensitive sensors that detect may be the filter is not there I think. I re-installed it correctly and seated it above the blower pressing all four sides. Need skinny hands to get in the back of it. Since then its fixed and climate control works normally as before.
I just did the fix you suggested and it seems to work just fine; I don't understand why it works but I am happy for the solution!!!
The servo motor no longer seems to trying to run on its own so we'll see if it works tomorrow.
Byoncat
Rookie
Joined: Dec 2010
Posts: 66
Likes: 4
From: Ohio
There's a reset door? did you have the clicking noise also? I was able to take the servo motor out thinking it was a blend door motor issue but the motor was fine. It seems to be some type of door or something that is not seating properly. What did the installer do that caused the problem do you know? Thanks.
Byroncat