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  #25  
Old 12-19-2013, 02:49 PM
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Re: Problem With 2014 Grand Cherokee Heater

Thank you so much for following up on this. Having the STAR case number would be a big help, when I go back to the dealer with this solution. Thank you!!!
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  #26  
Old 12-19-2013, 04:24 PM
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Re: Problem With 2014 Grand Cherokee Heater

Here's a cut-n-paste from numerous posts I've made on this subject. It seems to be getting more exposure now, keep it up so we can get this issue taken care of.

(sorry to the regulars on here...having to read my stuff over and over again)



----------

Re: 2014 GC Overland Temperature Regulation
I have this issue aswell and have kicked the dead horse over it again.

Below is a cut-n-paste from a reply, but to answer some questions;

In the shop for a couple of days with this "problem".

I was told the Limited and higher models have four sensors inside (dual zone ), laredo 1 or 2 (?) for a single zone

My sensors had a range of 70ish, 85ish, 105ish and 85ish. I don't know if that translates to degrees, but that would be too logical. They agreed that is was strange that cold air would come out with a 80 setting, but as the manual says that this "manual" mode is basically Automatic except the blower setting.

With that in mind, with a hot cabin this manual mode will try to reach that 80 by any means....even if you get cold air blowing out

I just want a real manual mode, up is hot, down is cold. I'm smart enough to regulate it myself.

In addition to that problem, I feel it changes temp output depending on if you're highway or city driving. High RPMS it gets hot...too many variations in temp

Dealer says its normal. I have now set it to 82 plus and/ or high and just regulate the window crack or vent blower speed.

Good luck,
Al
p.s. here's my cut-n-paste from previous thread.
-----------------------------------------------
The HVAC system is a FAIL for me. Sure it works somewhat... when the windows are up and you're cruising on the highway.

Today while driving with the sunroof open, 35 degrees outside with sun. Set at 80 on "manual" mode....oh sorry, pseudo manual. 10 minutes of hot, 10 minutes of fan, 10 minutes of cold air....and repeat. Reduce 10 minute interval to 5 minutes if you're changing the RPM's a bit.

Yes, I know I've written about this before and I hope I find that "ah-ha" moment soon on why the Jeep was designed that way.

Dealership says the Laredo Jeep functions as you would think....manual, But Limiteds and up ( maybe due to the 8.4a) function in this pseudo-manual.
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  #27  
Old 12-19-2013, 07:47 PM
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Ive had trouble with the heater also..seems to not really have middle ground its too hot or if I drop it a little it will get too cold,also unless I have it on full blast the windshield will fog up. They opened a star case but they say they still cant find the problem. I also dont know about anybody else but during the summer the air conditioning never could keep the car cool
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  #28  
Old 12-20-2013, 12:11 AM
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Re: Problem With 2014 Grand Cherokee Heater

Quote:
Originally Posted by maxim5928 View Post
Thank you so much for following up on this. Having the STAR case number would be a big help, when I go back to the dealer with this solution. Thank you!!!
I will stop by the dealer tomorrow to get the case #. My Dad has a 2014 GC as well with the same issue. He took his to the dealer (in his area) and they had no clue what to do - working as designed (gosh I hate those words). I need to get the STAR case on here so you all can tell your service departments how to fix what they should be able to do on their own.
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  #29  
Old 12-20-2013, 01:23 AM
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Quote:
Originally Posted by shewstring View Post
I will stop by the dealer tomorrow to get the case #. My Dad has a 2014 GC as well with the same issue. He took his to the dealer (in his area) and they had no clue what to do - working as designed (gosh I hate those words). I need to get the STAR case on here so you all can tell your service departments how to fix what they should be able to do on their own.
If you could get it to us by 8am that would be great! Just kidding...
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Old 12-23-2013, 12:11 PM
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Re: Problem With 2014 Grand Cherokee Heater

Ok, sorry for the delay - the STAR Case on the 2014 Heater (cooking you out) is 594668.
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  #31  
Old 12-23-2013, 01:38 PM
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Re: Problem With 2014 Grand Cherokee Heater

Thank you, thank you, thank you for going to the trouble of getting the STAR case number for us. I am going to contact my dealer right away about getting this fixed.

With much appreciation............Bill
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Old 12-23-2013, 03:48 PM
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Re: Problem With 2014 Grand Cherokee Heater

I just heard back from my dealer and he tells me that STAR case numbers begin with an "S" and have eleven digits. He also said he did a search of this issue using words such as "temperature", "heater", and "a/c" and came up with nothing that could help.
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Old 12-23-2013, 04:47 PM
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Re: Problem With 2014 Grand Cherokee Heater

Quote:
Originally Posted by maxim5928 View Post
I just heard back from my dealer and he tells me that STAR case numbers begin with an "S" and have eleven digits. He also said he did a search of this issue using words such as "temperature", "heater", and "a/c" and came up with nothing that could help.
Hmm, that worked for another dealer to use. If they put a case in about set vs actual temperature STAR will help them. I find many service departments are plain lazy unless the issue is biting them in the nose. Tell them to reference a ticket put in by Bergstrom Jeep Ram - Oshkosh WI.
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  #34  
Old 12-23-2013, 10:06 PM
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My co worker just looked on dealer connect. There is nothing with that number and there is no star case opened for hvac. Im thinking the number he gave you was just to shut you up.
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Old 12-23-2013, 11:14 PM
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Re: Problem With 2014 Grand Cherokee Heater

I had started a similar thread when I first got the 2014 limited.

Since then I think I found settings that work pretty well.

I set it on 70. I do NOT use Auto. I set it to Manual Floor and Front vents and set the Fan on 2.

I hardly ever touch it now. Except when I need defrost

If you boost the temp or fan when you first get in, you will be in a furnace and over shoot. When you get home in your house do you set the temp to 80 to heat up faster. Of course not. Just leave it.

It does not heat up much faster if you do. Just be patient. It warms very quick.

It does overshoot a little. Don't turn it DOWN, it will settle on it's own.

If you lower it when it over shoots, later you'll be cold.

I just leave it on 70 at Fan 2 and it comes up moderate fast, very quiet, very even distribution, a little over shoot and doesn't take long to settle.

Your preference might be 69 or 71 whatever.

Find a comfortable temp on a long trip and just leave it there.

After I found this setting I think it's the most comfortable HVAC I've ever owned.

It's a Thermostat not a Heat Throttle.
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  #36  
Old 12-23-2013, 11:28 PM
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Re: Problem With 2014 Grand Cherokee Heater

I operate mine in much the same manner. 70 on drivers side and 72 for passenger (wife). I turn the driver side down to 68 when running air conditioning. I leave floor and defrost set for heat, and floor and dash vents for cooling (on really hot days I turn up the fan speed a little). I hardly ever touch these manual settings, and I'm very comfortable. If I get window fogging I hit the front defrost button for a bit, and if I start getting outside fumes, I hit the recirculate button. I have never used the auto settings in any of the last four vehicles that I've owned that had it. It never seemed to work well for me. My GC has been very comfortable in weather of both high and low temp extremes.
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