Lexus RX 2004-09 :: Climate Control Don't Work - Computer Doesn't Show Outside Temp
Apr 11, 2011
From time to time, climate control will stop working. Buttons are not lit up or responsive, fans do not work, and computer doesn't show outside temperature. Problem can last a day, an hour, 10 minutes, or any other time frame. Most of the time once it stops working it will not start working until left parked and locked overnight. Sometimes when we start driving it would all of a sudden start working on its own. This has happened during multiple seasons and multiple weather conditions.
I took the car to Lexus dealer who decided it would be a smart idea to replace the whole climate control unit in the dash, well this past weekend the problem occurred again with brand new climate control unit in place.
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RX450h Climate Control ... This is annoying and all my riders complain about the A/C Auto mode on this car. Here is the issue in Auto Mode with the inside temp set at 72 degrees, and the outside temp is cold anywhere from 55 to 65 degrees the A/C always blows cold air into the car. I can never get heat to flow into the car. The manual says that auto controls the a/c flow, fan speed, and vents like auto in almost every car. What is wrong here? The A/C is always on blowing cold air regardless of the temperature set inside the car. To me it seems that the temperature setting for both passenger and driver do not work.
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My 2005 Ford F-150 Lariat 4x4 5.4l V8. the climate control system will not let me lower the fan speed or let me change the airflow direction. and my heated seats will not work as well.. i looked at the fuse it was good.. and un-plugged the battery for 3 minutes.
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I haven't been able to find the solution to change C temp readings to F on my 2009 ES350. The car is Canadian and I'm in the US and although it's not a big deal I'd like to change it over. The importation company already changed over the speedo and so the cluster reads F degrees and Miles. Just that one last change to make it all match up.
I read an old thread on the earlier generation that the body control module needs to be changed. But, nothing on this generation. Lots of people trying to go metric from English so maybe we could even trade parts to make it happen.
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I know this is a weird post but I am looking for a climate control head unit that does not work. I need the silver covering plate that is part # 55901-24030 that is not damaged.
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On longer trips, over 20+ minutes that the interior temp does not hold the current set climate control temp? If using sync on both sides, the temp in the cabin seems to creep down and you have to keep upping the setting and then reduce it because its too hot.
We have an older 2001 Infiniti I30 and it keeps adjusting to hold the right temp.
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I just bought a 2007 and my Multi Information Display does not work properly on the climate control screen or information screen. ie when you press temp up or down buttons it sometimes works and when you want to change the fan speed and press medium it goes to low. On the information screen no matter what you select it goes to Trip information screen. However the Audio screen works perfectly.
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I have a 2008 LS360L with 4-zone climate control. For whatever reason, the rear seat controls and display do not work for climate control. The controls still work for radio, rear seat adjustment and window shades, but climate functions are unoperable.
Additionally, the 4-zone buttons on the nav touchscreen are now missing in the climate menu. There used to be left / right passenger settings and then a button to switch to rear seat settings. These options have all disappeared from the menu.
I can press the 4-zone physical button on dash and manually change temperature settings for driver or passenger by pressing physical driver / passenger temperature up / down buttons.
The only thing I can attribute to this is I had the dealer do a map upgrade to the nav system. All other features / functions work, but the timing is somewhat suspect... They really do not believe this upgrade caused the problem.
Are there hidden menus I may have hit to deactivate this feature?
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The other day I tried to do the nav hack and dvd playback in motion. I read through the instructions multiple times and followed them correctly making sure to cut the right wires. At the end, the only thing that worked was the dvd playback. I even tried two different switches but no luck. Over the weekend I noticed that cruise control wasn't working. When I press the cruise control button you can see the icon in the dash but you can't "set" the speed.
So today I plugged everything back to how it was, but still the cruise control does not work. I think it has something to do with the VSS. I did search, but I only found one other guy that had the same problem but it was never posted if he solved it.
I checked all the fuses under the hood and under the dash but they are all okay. How to reset the VSS or where the fuse for it may be? I'm going to try unplugging the battery and seeing if that does anything.
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I have a weird problem with the AC on my 2001 Passat. Every so often, evidently at random, the computer will show an outside temp that is far below actual. It will sometimes drop to -58F, even when it is hot outside. It won't always go that far down--and it eventually returns to the true temperature. But when this happens, the AC turns off, or the heat turns up (I have the Climatronic thingy). We have to shut the climate control off altogether in order not to roast. Turning off the car is not always a fix for this, and neither is turning off the AC. I suspect a sensor of some kind has gone bad, but the dealership wants an exorbitant amount of money just to dig deep enough in the car to discover what is wrong. This has been going on for 6 months, in all weather, but with greater frequency lately.
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Seems like I'm having to crank the temperature up higher and higher (numerically) to avoid freezing myself out in the GX in the summer. Used to be ~72-74deg was a comfortable setting, regardless of outside temp. Now it seems like I'm running a 77-78deg setting on the climate control in order for things to feel right. Any lower and I just get frozen-out.
Oddly, if I have the rear AC on (if it's super hot outside, or if the kids are in the back) things are a bit more normal.
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The buttons to change the temperature in my 2010 Prius don't do a thing... The temperature is cool-ish as long as you have the AC turned on, and stays the exact same as you increase the temperature until you get to 85 and it maxes out, then it starts to get warm. As soon as you go to 84, it's cool again.
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So today it was 101 and I figured I would put the AC on auto but when I set it to auto the temperature defaults to 72. Is this normal and can I change it? It seems like the climate control in auto mode go off of the outside temp, if hot outside blow cold inside and vice versa. What is the point to auto AC if I manually have to set the temp?
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When I turn on the car the internal temp number flashes for about a minute. The AC blows cold and I haven't noticed any issues with the HVAC system. Why is it flashing?
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Yesterday all of a sudden the lights on the instrument panel started flashing and the RPM indicator started fluctuating . The RPM indicator would rev and bounce all over the place while the engine was. At a constant speed. Same thin happened before when the alternator went. Next the A/C sort of went and the NAV screen showed Air Condition Diagnosis with no options to change the climate control on the screen. When I got to the car I noticed the 110v ac button was on, not sure how long she had it engaged. I turned if the 110v button and unplugged the battery to reset the computer. All seems fine driving it for 20 miles now.
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Have any control over the fan speed? The temperature? How does it work?
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I have a 2010 Prius and I leave the climate control on. When I start the car the AC will only work sometimes. I can run errands, where I make 5 stops shutting the engine off each time. It will be hotter then heck in the cabin and after starting the car the ac won't blow air out the vents. Sometimes I can shut the car off and restart it and then the AC will turn on. When it actually blows air, it's nice and cold. If the car is on and the AC won't work, I will turn down the climate control to the coldest setting and it still won't come on. But the next time I start the car the AC might work fine. To me, it seems like a relay or something electrical isn't turning the ac on when the car is turned on. Or maybe the blower motor is getting stuck.
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I just purchased a 2014 Avalon XLE Touring. One thing that seems to be a slight problem is the A/C setting. To get the car to cool down I have to turn the setting down to about 66 to make it comfortable and I know it is not 66 degrees in the car. Is there some way to calibrate the temp reading?
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My 2009 Sonata Limited always has the front window defroster come on in cooler temps when the climate control is set to AUTO. This is aggravating since it shouldn't do that. I took it in for service last year at this time and they didn't find anything wrong and I gave up arguing with the dealer about it.
Is there a sensor or something that is out of adjustment? It comes one when the temp is about 40F or lower and you just start the car after it's been sitting cold. I don't notice it so much when I am out on multiple errands.
Another thing that I notice is that I can never just turn the fans on for air circulation when the temps are moderate, not needing A/C or heat. If it turn the fan on, it always seems to blow cold air feeling like the A/C is on, even if it is not in AUTO mode. I complained about the same thing and the dealer said the unit is operating OK.
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i have a 01 b5 GLX 2.8L with the automatic climate control, well on occasion my temp will be reading fine than all the sudden drop to -36 degrees in 4 degree increments. when this happens my ac thinks its cold outside so it stops blowing cold air and blows hot air. i have to let the car sit with the ignition off for 15 min before it will reset. Is it my temp sensor that's bad and if so where is it located at?
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Now that the summer has finally arrived the southern Finland I found a problem with my climate control. When the car gets hot from the sun and the climate control starts cooling it takes up to 2 minutes until I get cold air from the vents. It doesn't matter if I let it run on the AUTO-mode or that I turn the temperature all the way to the LOwest position with full "thrust".
I checked the service history of my car and the AC has been serviced and filled last summer. (the basic fast service method). I didn't want to service it again since I'm afraid that all that money would have gone to waste. I haven't found any leaks tho. The radiator is pretty beaten up from all the debris and road salt tho.
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