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  #181  
Old 03-04-2014, 02:19 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by ledcat View Post

I purchased my 2014 limited in June of 2013. I did not have this issue. I recently brought the Jeep in to have the TSB done for the remote start issue. This issue was that the heater shut off after the drivers side door opened, using remote start. Now after the TSB was done I have this heater issue, where it blows out incredibly hot air, and I have to keep turning down the setpoint. I never had to do this before the flash was done for the TSB. And to add misery to pain, after 2 days the heat is now shutting off when I open the drivers door just like it did to beging with. WTF???
The front windshield defrost fan on high is supposed to shut off when you open the driver's door after a remote start. What's NOT supposed to happen is the whole damn climate system turning off when you open the driver's door after a remote start.

That's what was happening to my 2014 GC Limited after a remote start on a cold morning...the TSB for HVAC fixed this.
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  #182  
Old 03-04-2014, 02:23 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by GCLimited View Post
The front windshield defrost fan on high is supposed to shut off when you open the driver's door after a remote start. What's NOT supposed to happen is the whole damn climate system turning off when you open the driver's door after a remote start.

That's what was happening to my 2014 GC Limited after a remote start on a cold morning...the TSB for HVAC fixed this.
Mine works as you describe so seems that is working ok. M
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  #183  
Old 03-04-2014, 07:04 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by jeepwes View Post
Very interesting. Def sounds like a bug to me. Jeep case worker told me to call this other dealer and they will help. I called them and they said sounds like it is working correctly, there is no real manual mode. Ok, so guess I need to go retread the owners manual I have to see what it says about manual mode. At this rate ready for my third attempt and lemon this thing if it can be.
Don't keep asking for a "Manual Mode" that doesn't exist.

Just tell them you can't set it to a comfortable setting without freezing or cooking.

I tried Auto again the other day. The fan always wants to be high when in Auto which I find annoying. As soon as you adjust the fan down, your basically in "manual mode", well as manual as it gets, where the temp controls are still active.

If you keep asking to control the AMOUNT of heat that comes out, your gonna get no where fast. But it's reasonable to request that it be comfortable on short or long drives in either Auto or it's definition of Manual.

You probably just have a bad sensor but telling them how you want and expect to work which doesn't jive with it's intended design.

Hmmm, I wonder if the system behaves different with or without doing a remote start or with the comfort setting on or off.

Maybe it's connected and it thinks that car is still in "Auto Start" mode which does blow out max heat.
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  #184  
Old 03-04-2014, 07:44 PM
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Re: Problem With 2014 Grand Cherokee Heater

Original dealer that has looked at this twice before has me taking the car in to them again on Monday for the entire day. They said they have some things to try.
We will see. I hear what your stating about how I word it. Had that issue the first time I took it in, 2nd time I showed them with a meat thermometer and that did the trick for them to understand how hot it gets. I will post my results after the visit next week.
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  #185  
Old 03-04-2014, 11:58 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by jeepwes View Post
Original dealer that has looked at this twice before has me taking the car in to them again on Monday for the entire day. They said they have some things to try.
We will see. I hear what your stating about how I word it. Had that issue the first time I took it in, 2nd time I showed them with a meat thermometer and that did the trick for them to understand how hot it gets. I will post my results after the visit next week.
I think the meat thermometer is gonna get you in trouble too. You don't know what it's supposed to put out. And I think it was you that they checked other vehicles and said they were the same. Your telling what the spec is and how it's supposed to behave. Just tell them your freaken hot or cold. Otherwise they will just put their defense mode.

However, I can say it never comes out that hot on mine. And I know, I know because I have my phone mounted directly in front of the vent with a Pro-Clip. It would cook my phone.
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  #186  
Old 03-05-2014, 12:13 AM
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Re: Problem With 2014 Grand Cherokee Heater

Not sure how the meat therm would get me in trouble. I don't think that huge of a swing in temp coming out should be normal. Hopefully they can come up with fix for this for everyone. Regretting buying American who seems they cannot make a heater work right in a car lol.
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  #187  
Old 03-05-2014, 12:24 AM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by mswlogo View Post
I think the meat thermometer is gonna get you in trouble too. You don't know what it's supposed to put out. And I think it was you that they checked other vehicles and said they were the same. Your telling what the spec is and how it's supposed to behave. Just tell them your freaken hot or cold. Otherwise they will just put their defense mode.
Meh. The meat thermometer documentation came about after the dealer blew him off. As we all know, dealers will lie through their teeth ("it's normal") if they think they can get away with it.

Telling them "it's freaking hot" gets a blow-off response of "it's supposed to be that way" without further investigation. A thermometer showing "freaking hot" temperatures makes it harder to argue with a straight face that it's normal. And, of course, if 120+ F is normal then normal is wrong (regardless of the spec).

What's the point of trying to appease an abusive dealer's delicate sensibilities? Sure, try the "nice way" first, but don't just roll over when the dealer tells you to FOAD with your issue.
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  #188  
Old 03-05-2014, 01:19 AM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by Roadkill View Post
Meh. The meat thermometer documentation came about after the dealer blew him off. As we all know, dealers will lie through their teeth ("it's normal") if they think they can get away with it.

Telling them "it's freaking hot" gets a blow-off response of "it's supposed to be that way" without further investigation. A thermometer showing "freaking hot" temperatures makes it harder to argue with a straight face that it's normal. And, of course, if 120+ F is normal then normal is wrong (regardless of the spec).

What's the point of trying to appease an abusive dealer's delicate sensibilities? Sure, try the "nice way" first, but don't just roll over when the dealer tells you to FOAD with your issue.
First, I don't know exactly what should come out.

But 120 F or maybe higher doesn't seem too crazy. Put your meat thermometer in inside a space heater. Bet ya it's more than 120 F.

To take that size cabin from 0 F to 70 I think you want a heck of lot more than 105 F or it's gonna take a long time.

Obviously it's capable of putting out that much heat. But the fact it CAN isn't the fault or the problem.

The question is why is it continuing to call for that much heat. No meat thermometer required or needed to get distracted with.

When the car remote starts it blasts the heat out and maybe it is 140 F once warmed up.

But why is it stuck there?

Granted some dealers are easier to deal with than others. But the meat thermometer is gonna steer them possibly wrong and put them in a defensive mode.
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  #189  
Old 03-05-2014, 07:40 AM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by mswlogo View Post
But 120 F or maybe higher doesn't seem too crazy. Put your meat thermometer in inside a space heater. Bet ya it's more than 120 F.
Not certain where you're going with this. I don't keep space heaters positioned two inches from my fingers for hours. Bet that wouldn't be comfortable if the space heater were blowing 120+ F.

Quote:
To take that size cabin from 0 F to 70 I think you want a heck of lot more than 105 F or it's gonna take a long time.
And yet, a house gas furnace pushes about that much (I measured mine at ~90 , but YMMV). I bet the house/Jeep would heat up a lot faster if the air temperature coming from the vents were 250 or even 300 F, too. The point is that the cabin temperature and being comfortable while being strapped into position a few inches from the vents are two very different things.

Quote:
The question is why is it continuing to call for that much heat. No meat thermometer required or needed to get distracted with.
Yes, that is the brain damage of this ironic & speciously clever HVAC system. You are sitting there in a warmed up vehicle and think, "Wow, I'm a little cold. I would like the air blowing on me to be slightly warmer." so you increase the thermostat by 1 F. The air coming from the vents inches from your body immediately increases by 60+ F to 120+ F. "Thank you, Jeep, that is exactly what I was hoping would happen," said no one ever. Seriously, this is the kind of thermostat I imagine they give people in hell: "Go ahead, make yourself comfortable... <evil laugh>"

The mandatory, house thermostat model is just so very wrong for a vehicle. Since they won't ever give actual control of the temperature to us, the best we can hope for is to not be torched.

Quote:
But the meat thermometer is gonna steer them possibly wrong and put them in a defensive mode.
We are probably going to continue to disagree about this. If you read the beginning of this thread, about half the replies from the *users* in this troubleshooting forum were along the lines of "it's supposed to be this way". Only when the values were quantified did people start to believe it wasn't a matter of opinion.

I agree it's simpler to begin a tech support request by playing dumb. However, when the dealer is dismissive then either the documented measurements come out or you go away and just live with this problem. Besides, without documented temperatures how else do you quantify an intermittent problem (like many vehicles have)? Make a video where you say, "Oh, man, yeah... it really got hot right then."? I suppose you could film the sweat starting to form on your skin after you tick the HVAC up by 1 F, but it seems simpler to just use the thermometer.
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  #190  
Old 03-05-2014, 11:02 AM
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Re: Problem With 2014 Grand Cherokee Heater

Roadkill, I am really sorry to read about your HVAC problems, but I *LOVE* the "speciously clever" descriptor!

Well done!
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  #191  
Old 03-05-2014, 11:03 AM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by maxim5928 View Post
I agree. Keep the 2011 until this issue is resolved. I wish I had my 2011 back. I had zero problems with it. Also, when I used remote start in cold weather, the defrost (front and rear) came on along with the seats, which I liked. Now, with the 2014, only the heater and seats come on, not front and rear defrost. This car is a disappointment in several ways.
Look through the window.. the defrost is probably on and will shut off after opening the door. My probalem is the rear defrost doesnt come on now? I know it used to because it was easy to clear the back window. not now...

Quote:
Originally Posted by ledcat View Post
I purchased my 2014 limited in June of 2013. I did not have this issue. I recently brought the Jeep in to have the TSB done for the remote start issue. This issue was that the heater shut off after the drivers side door opened, using remote start. Now after the TSB was done I have this heater issue, where it blows out incredibly hot air, and I have to keep turning down the setpoint. I never had to do this before the flash was done for the TSB. And to add misery to pain, after 2 days the heat is now shutting off when I open the drivers door just like it did to beging with. WTF???
make sure you have it set to auto before turning it off... then check.
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Old 03-05-2014, 03:03 PM
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Re: Problem With 2014 Grand Cherokee Heater

I just went through the 7th edition 2014 owners manual and 5thR1 user guide and find no mention of remote start/auto on comfort controlling the Defrosters. Does anyone have any information showing that Remote Start/Auto on comfort should enable front/rear defrost when it's below 40F outside?

I don't want to bother the dealer too much about this if there is no documentation showing it for the 2014 models.
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