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Air Conditioning frustrations

J

jonah

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I know we've talked about this a little before, but it is so damn hot right now here in the south that I've got to hit the topic again.

When I first crank the car when it's really hot outside the system blows hot air out of the upper vents for 10-15 seconds before the compressor finally kicks on and the temp starts to drop. This is a very uncomfortable 10-15 seconds and I don't see any practical reason why the computer shouldn't recognize immediately that a/c will be needed and fire the compressor at start up, while dumping the hot air in the vent lines through the LOWER vents (like a lot of newer cars do, my old 1998 acura did this).

It may seem like a small amount of time to be concerned with but with the daytime highs in the 100s every second counts. And really it's just a design flaw, no one can tell me that this is the ideal way for the a/c system to work. I'm sure an update to the control logic could fix the problem. Anyone know of any TSBs on this subject? Thanks! Hope it's cooler where you are...
 
Jonah,
I too am in 92-100 deg weather, my ac and seat cool work just fine up to 82deg but I can't feel the seat for 20min and even though I have cold air from the front and back vents the car does nt cool for 20 min...........Is this just the design of compressor delay or is the car shipped with too few PSI in the system. My Durango is cold in minets above 100deg
 
Yep!

The cooled seat is GREAT after 15 min.

The AC is even worse if you have it on AUTO during a hot day. It almost takes 1 min to start blowing out the vents...and then it is HOT for about another min.

I just roll the windows down to start off.

Kinda stinks though. My BLACK 05 Camry is COLD within 20 sec. on a 100 F day
 
Same issue here.
 
I have the same problem with mine. I keep the temp control on automatic and it takes forever to cool down. I have a Dodge truck and a Toyota Avalon that both blow cold air right after start up.
 
Black genesis badges emblems letters lettering chrome delete
Very interesting. It has been in the 90s here for the first time all year this week (hard to believe) and I had exactly the same issue occur in Auto mode. I would say it was at least 90 sec before I started to feel cold air.

There must be a simple software fix for this. Is there a formal way to ask Hyundai to add these type of issues their development guys are addressing? The service website does not appear to have a feedback feature.
 
Here in Central Florida, I have learned that leaving it in Auto, even with the "Circle A" button engaged, does not do a good job of cooling the car down. Yes, with the Circle A button engaged, it does cycle the "Recycle button" (just to the left of the Circle A button, but it takes too long to cool the car.

The best thing to do is just push the Recycle button. (Leave the Circle A button off). The Auto button will go off. (You can push the Auto button on again, while the Recycle button is on, however really NOT NEEDED). With the Recycle button on, the car cools off very fast. We have been having close to 100F temperatures here, and no problems cooling with the recycle button.

In addition, make sure the rear center vent temperature control is set to cold. Mine was moving to warm/hot by itself, so I jammed a small piece are cardboard into the center vent temperature control, and it now stays on cold.
 
I agree, A/C is lackluster. Auto mode is annoying because it completely has a mind of it's own. Changing anything (like whether the floor vents are on) cancels auto. And the blower fan noise is variably distracting, depending on what the program wants to do. I'd love a little more intelligence in terms of overrides (for example, if I change the fan speed or recirc, it may take longer to get to the desired temperature, but that might be okay).

And in the wish list category, I'm intrigued by the Prius' solar powered vent fan. It would be nice not to have to rapidly cool the cabin from 120-130 degrees.
 
No cold air for the first 15 seconds? You poor thing!

Every new(er) car does this. Believe me, I've owned enough to know. Blame it on emissions controls and EPA regulations banning Freon. Some of you are too much. My GS430 was no better in this regard, neither was my BMW, or any of my Hondas/Acuras. Maybe I should drive a Camry to see just how better it really is.

On a side note, I'll give you guys my Outlander or Land Rover if you want to see piss poor AC performance. ;)
 
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ctrcbob said:
Here in Central Florida, I have learned that leaving it in Auto, even with the "Circle A" button engaged, does not do a good job of cooling the car down. Yes, with the Circle A button engaged, it does cycle the "Recycle button" (just to the left of the Circle A button, but it takes too long to cool the car.

The best thing to do is just push the Recycle button. (Leave the Circle A button off). The Auto button will go off. (You can push the Auto button on again, while the Recycle button is on, however really NOT NEEDED). With the Recycle button on, the car cools off very fast. We have been having close to 100F temperatures here, and no problems cooling with the recycle button.

In addition, make sure the rear center vent temperature control is set to cold. Mine was moving to warm/hot by itself, so I jammed a small piece are cardboard into the center vent temperature control, and it now stays on cold.
Click to expand...

with mine on Auto, recirc kicks on automatically on hot days like today (97). I drive with the windows down for a few minutes to dissipate interior heat, then after the windows have been up for 5-7 minutes the recirc turns off.
That said: I REALLY want fob window opening! To let some of the heat out before having to get into the car to start it would be HUGE after sitting in the sun all day at the train station.
 
jwaters943 said:
No cold air for the first 15 seconds? You poor thing!

Every new(er) car does this. Believe me, I've owned enough to know. Blame it on emissions controls and EPA regulations banning Freon. Some of you are too much. My GS430 was no better in this regard, neither was my BMW, or any of my Hondas/Acuras. Maybe I should drive a Camry to see just how better it really is.

On a side note, I'll give you guys my Outlander or Land Rover if you want to see piss poor AC performance. ;)
Click to expand...

Yes, thank you...There's no crying in baseball, or new car ownership. Yeah I had a 86 mustang convertible. Let see, to make it work you must roll down top, crank the heater on high so the engine wouldn't overheat. Women and cars, never perfect, but beats taking the bus and playing 5-1.
 
The AQS (circle A) kills the cooling time. I leave it on Auto (only low-mid 90's) and it works fine. Love the A/C seat though!
 
The a/c on my Genesis (4.6) is very, very slow to reach its maximum cooling power.

It was in the mid-80's here yesterday and my car had been sitting in the sun all day. When I got in (ouch, that fake wood steering wheel was hot!), the fan initially blew a LOT of hot air. After 30 seconds or so, the air STARTED to cool, but it took several minutes (3 or 4, maybe) before it REALLY started to blow cold air. Three or four minutes is a lot when you're sitting in a steaming, hot, car. I have never experienced this much delay in ANY car I ever had except maybe my 1974 Chevy Vega.
 
Cool down time is very slow in this car compared to the two Toyota's I own. The lag between starting the car and getting cool air is easily 5 times as long as well. Temps in AZ this week are 105+
 
Black genesis badges emblems letters lettering chrome delete
Guys please don't crib about the slow cooling. This is a normal feature with all newer luxury sedans to prevent the environment from Freon.Go green Genny...
If you cant tolerate the heat for 15-20 secs. move to a cooler place.
And this is not limited to car A/C. I just bought a new HVAC system for my house made by Trane( one of the best for home AC). The techician told me that it takes few seconds for the AC to come to full power as to protect the environment from Freon.
 
Wasn't going to whine about the slow to cool AC.
But, there have been a few posts blaming this on not useing Freon anymore. Well that doesn't explain why other cars without freon, can do much better. I had an early 90's Jeep Grand Cherokee that was the first year without freon and it cooled quickly (even though it had it's teething pains). Also a 2001 Jeep Grand cherokee, and my wife still drives her 2006 Chrysler Town&Country (both without freon) and they disn't/don't have this problem.
Haveing to roll the window down isn't too big a problem, exept when the car has been sitting in the hot sun all day and then I get in as the afternoon rains come in. What a choice sit in a sweat box or get soaked and swamp the interior. Not much of a choice is it?
Does it disapoint me in getting the the Genesis? Of course not. But it's definately another spot for improvement. Are you listening Hyundai? (yes I know ...).
 
So by reading this thread it seems that Chrysler and Toyota products (with the curious exception of my 2006 GS430) have stellar AC performance.

Maybe someone with lots of time on their hands can drive the Genesis back to back w/ a variety of new cars and compare them for me. I'm honestly puzzled because I've owned over a dozen cars (many of them luxury cars such as Cadillac, Acura, Lexus, BMW & Land Rover), and none has displayed noticeably better AC performance.

I must have a fluke Genesis. It was one of the first built for the U.S. market (purchased 6/27/08), yet it rides well, the transmission shifts smoothly, it doesn't make any weird mechanical noises, the keyless start always works, and my AC useually kicks on and starts blowing cold air within 15 seconds. I wonder how much of the complaints on here are real vs. perceived. No car is perfect, but it is it really that big of an issue that it takes a few seconds longer to cool the cabin then your other car?
 
ctrcbob said:
Here in Central Florida, I have learned that leaving it in Auto, even with the "Circle A" button engaged, does not do a good job of cooling the car down. Yes, with the Circle A button engaged, it does cycle the "Recycle button" (just to the left of the Circle A button, but it takes too long to cool the car.

The best thing to do is just push the Recycle button. (Leave the Circle A button off). The Auto button will go off. (You can push the Auto button on again, while the Recycle button is on, however really NOT NEEDED). With the Recycle button on, the car cools off very fast. We have been having close to 100F temperatures here, and no problems cooling with the recycle button.

In addition, make sure the rear center vent temperature control is set to cold. Mine was moving to warm/hot by itself, so I jammed a small piece are cardboard into the center vent temperature control, and it now stays on cold.
Click to expand...

Again; with just the Recycle button engaged, (with or without the Auto button engaged), my car cools down quick in this Central Florida 95F 80% Humidity.

Without the Recycle button engaged, even with the Circle A button engaged, it takes a lot longer.
 
I just logged into the forum to talk about the same thing others are complaining about. The A/C system cools the car down fine, however, the delay in engaging the compressor is too long. My '06 Toyota Avalon kicked in about 5 seconds after the engine was started, the Genesis takes from 15 - 20seconds, seems like too long to me. Not unbearable, but annoying.
 
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