The AC system doesn't seem to cool the car down on hot days. So on hot days when I use the "AUTO", the AC turns off, fan on full. Is the AC supposed to turn off? Even if I try to turn on AC, I don't feel any difference.

I have a 2008 MDX and the AUTO seems to cool the car down a lot quicker than my RLX.

 

I'm sure it's better than our '14 Santa Fe 2.0T. That thing refuses to blow air colder than 80 degrees and at that the air doesn't even blow. I think it's a defect... it's loud like it's on full blast but you can't feel a thing coming form the vents.

The '04 TSX is a whole different animal. That thing is like a leaf blower with cold, dry air.

 

AC turns off on auto? That is wrong

 

Something is definitely wrong. AC should stay on and the compressor should cycle on and off as necessary to maintain your temperature setting.

 

My experience with Auto climate control systems is that the more you play with them, the worse they work. Set the temperature that you find comfortable and leave it alone. If you are constantly setting the temperature very low to cool the car then cranking it up because you feel too cold, the logic processors don't know what the heck you want for a temperature and will seem all over the place as it tries to find a temperature to make you happy.

If you try a single setting for a few days and it still isn't working, get to a service center and have it checked out.

Just my two cents.

 

Sorry, double post

 

The AC light remains on if you have switched it on.

It's not going to stay illuminated if you've selected AUTO, but that does not mean the AC is off.

The seat ventilation helps, if you don't think it's cooling fast enough.

And if you leave the rear shades up, that will also help.

 

I guess I am not getting how this thing works.
So if I turn the AC on manually, and then select AUTO, should the AC remain on.
Mine turns off.
Another thing, do you feel any difference with the AC on and with the AC off.

Coworkers have complained whenever they ride with me that the car is not cooling down.

I have all shades up.

 

Try this. Select Auto, then set the temp (driver and passenger sides) to the lowest possible setting. If working properly you should be blasted with cold air. If not, take it to the dealer.

 

^+1

 

Its crazy how as much as this car cost that the problems associated with it seem crazy, that AC should be ice cold on demand and not have to fiddle around too much, IMO. scares the hell out of me

 

wutaguy

How long have you had the RLX and has the AC ever worked the way you think it should? When we moved into the house we built,we were having problems with the AC upstairs. We had the HVAC guy come and he said the unit wasn't properly charged from the start.......

 

If you've been blasting the cold air using the manual A/C setting and then switch to Auto, the A/C will likely turn off because it senses that the temperature in the vehicle is lower than the set temperature - depending on the temperature that you have selected, the system may actually blow warm air to try to raise the temperature to the set number.

As I said before, set the system to auto, set the temperature for you and the passenger at 73 degrees and leave it alone. The system will cycle the A/C on and off to keep the car at the set temperature. If you find it too cold, set the temperature to 74 degrees, if you find it too hot, set the temperature to 72 degrees. Once you start over-riding the auto setting and manually cooling the car, the system has to do all sorts of things including blowing warm air on a hot day to achieve the set temperature.

As 2011TL has mentioned, you should first test the A/C system is functioning by turning the temperature all the way down and making sure you are being blasted by cold air. From your earlier posts, it sounds like you have cold air when using the manual setting which suggests that your problem lies in using the Auto function.

 

Makes perfect sense

 

It's not really off. It will come and go as the car needs it, based on the AUTO being turned on. The AC light comes on only to warn you that you have manually switched it on and the compressor will not turn off when the car would do just as well with it off.

I can tell that I have cold air coming in, yes.

I don't have any particular problem using the system to keep cool. It's 100 degrees outside, I'm set at 75 and have the seat ventilation on one or two, and it's fine!

 

Wutaguy -

Press the talk button and say "Temperature max cold". The system will set itself to the coldest setting. You might have to also say "Passenger temperature max cold" if you don't have them synched.

That said, I've reported in another thread that the A/C in my RLX isn't doing the world's best job of cooling a hot car. I plan to have it checked next time the car is at the dealer.

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^^^^^

Agree. If in doubt, bring the car back to the dealership.

They can check out the A/C performance to verify the system.

 

had the RLX in for something else, and had them check the A/C while it was there. Turns out the expansion valve is sticking and it's not working at its best.

Before the "why so many problems with the RLX" crowd chimes in, I understand the expansion valve is supplied by a subcontractor, so I can't really blame Honda/Acura for that.

I'm just glad to hear there's something wrong with it, since it doesn't seem to cool like it should.

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I guess you could only blame them for picking that supplier and that part.

:-)

 

My ac is not very powerful and doesn't cool well even when set to max cool. I suspect there is a problem, maybe the so_called expansion valve. I have not asked the dealer to check it since I have not driven it that much this summer due to the suspension defect that is still without a fix.

 

You know, I must have the only RLX in North America that works right.

LOL....

:-)

The only thing I've thought about fixing is a slight wind noise from the front windows, for which there is a TSB.

The P-AWS actuator bolts were fixed the day I bought the car, so I never even had to take it back for that.

 

Just hit 3,000 miles with my RLX. The AC actually blows really cold and cools down the car pretty quickly.

I keep driver/pass in sync, and fans to auto.

Actually works a lot better than my TLs or Accords



I wonder how widespread the issue is, I've seen it mentioned quite a few times on the board but lucky havent experienced it yet.

 

Well, shucks. I took the car in on Wednesday, they told me the part for the A/C wouldn't be in until Saturday, and now they call and tell me it won't be here until next Wednesday.

Apparently this isn't a common issue, so the part has to come from California. Why it takes a week to make the trip to Texas I can't quite understand.

Oh well, in the meantime I have their RDX, and I could only wish my RLX's A/C worked as well as this one. It will freeze your things off.

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I have had no problems with mine either. Now have 10,500 miles. My wife is always complaining she's freezing with the AC on, so absolutely no problem with it being cold enough.