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  #121  
Old 02-17-2014, 12:52 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by Roadkill View Post
"Thanks for your insightful comments, guys. Appreciate you giving me the benefit of the doubt the first time I came in and not patronizing me. *cough*" Heh.

Lol, very funny but true.

Even if this turns out to be caused by faulty cabin temperature sensor(s), a separate issue is that there should be no scenario where the vents ever push this egregiously hot air. I mean, it would be bad enough if the system cycled between 90 F and 60 F, but 120+ is madness.

I hope they fix this for you and document it for everyone else who is affected. Barring that, I hope they do an autopsy on your HVAC system after you lemon it so that they can finally determine what is causing this.
I just wish they had a fix for the issue, but not going to wait forever. From what I know about the lemon law they may not take my car back but instead offer a payoff, I am assuming to sort of get rid of me lol. We will see, frustrated with this as I do like the jeep. I test drove alot of cars and selected the jeep, guess i am going back to my second choice maybe. But as someone stated on a review, it looks nice but does not perform like it looks:-(
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  #122  
Old 02-17-2014, 01:07 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by jeepwes View Post
Well, back from the Jeep dealer.
The service manager and tech sat in my car and they brought their infra red temp gauge which was showing the same temps as my meat thermometer taped to the air vent.

Had it set at 60, air coming out was 120. They both stated that they have not seen this before and found it very odd how it was working with such huge swings with air temp, as it appears there is no luke warm air option in this system, either 100+ air or cold air.

They sent it to the STAR team and commented on my slip awaiting future updates. At this point in time, I may just take this to another dealer this week to see if they have any ideas, and if not then I have my 3rd repair attempt documented for legal. I contacted my case manager at Jeep and awaiting feedback from them. I am not going to wait months for this to be fixed, they can have their jeep back if they cannot fix it as far as I am concerned. We'll see what happens. Really bad testing/QA on behalf of Jeep.
I hope the best outcome for you. I think mine probably does the same but I just crack the window to let in cold air when needed.

I've been through an unrelated STAR and enhanced customer care case in recent months. Not fun. Hopefully the dealership doesn't pull another 2014 JGC off the lot and get the same results because they may pull the "normal operation of vehicle" card. From that point Chrysler takes the dealership's opinion as final judgement.
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  #123  
Old 02-17-2014, 01:46 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by recoil1911 View Post
I think mine probably does the same but I just crack the window to let in cold air when needed.
As others have pointed out, this hack is likely to cease functioning in the summer (haha).

Quote:
Hopefully the dealership doesn't pull another 2014 JGC off the lot and get the same results because they may pull the "normal operation of vehicle" card. From that point Chrysler takes the dealership's opinion as final judgement.
Hm, that approach would be counterproductive because it would induce more people to lemon. It's not as if this is a mere "difference of perspective" about how a feature should be implemented.

I hope they resolve this issue before summer, or I will be pursuing it as well. I won't tolerate a system blowing 120 F air on me in the summer (or otherwise failing to cool), when cracking the window will just allow me to bask in the ambient 95 F, 100% relative humidity air instead.

It would be frabjous if this just turns out to be caused by a race condition in the HVAC control firmware, or something else that could be fixed by a simple flash.
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  #124  
Old 02-18-2014, 12:45 PM
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Re: Problem With 2014 Grand Cherokee Heater

I have had this problem as well. Set the system for 72 and had 130 degree air. My concern is on the opposite side, whats going to happen this summer? I live in Texas so it gets hot. When I run the A/C the coldest that I can get it to blow is 44-45 degrees. My 2003 Wrangler blows 35 degree air. I love the car but I need it to be able to cool as well as heat. How are your A/c's working? Do they cool below the mid 40's<
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  #125  
Old 02-18-2014, 06:07 PM
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Re: Problem With 2014 Grand Cherokee Heater

Heard back from jeep today. Tech team has some things they want the dealer to try. Waiting to hear from dealer to schedule a visit. I may just leave it there for a day or two and take them up on the offer to pay for a rental. Will post once I have more information or any real news to share.
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  #126  
Old 02-18-2014, 08:47 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by dagdog View Post
I have had this problem as well. Set the system for 72 and had 130 degree air. My concern is on the opposite side, whats going to happen this summer? I live in Texas so it gets hot. When I run the A/C the coldest that I can get it to blow is 44-45 degrees. My 2003 Wrangler blows 35 degree air. I love the car but I need it to be able to cool as well as heat. How are your A/c's working? Do they cool below the mid 40's<
The summer time operation is not as erratic as the winter time operation though I would still not consider it normal. It fluctuates between too cold and normal. Be nice if we could just hit auto set 72 and just have it stay at 72 like every other car I have owned. It cant really be that hard can it? cars have been doing that for decades. Just like getting the external temperature sensor to display correctly or at least close cars have had those for decades also.
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  #127  
Old 02-19-2014, 05:14 PM
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Re: Problem With 2014 Grand Cherokee Heater

Hi all - I am having what sounds like the same problem with intermittent climate control temperature fluctuations (usually excessive heat). I have the impression that this is usually a problem during the day, and rarely at night - if anything, at night it tends to get colder than expected. Not sure if this matches others' experience, or if it is a clue of some sort. My vehicle is a 2014 Grand Cherokee Summit. Not surprisingly, my dealer has been unhelpful and clueless. They claim to have opened a STAR case, but also claim that the only other similar case is a problem with driver/passenger temperatures not syncing properly. I occasionally have this problem also, but I am trying to find out if there is a way to help my dealer reference any existing information - maybe connected to one of your vehicles? It seems silly to have to start from scratch.

Also, if I have only spoken with my dealer, are there any other steps I should take to expedite the process?

Anyone in the Albuquerque, NM area should know that the service dept at Mark's Casa Jeep seems to be pretty incompetent (based on my experience). In trying to "fix" an intermittent LCD screen problem (periodic blackout), they claimed to have "updated the radio software". I later realized they had "updated" it to an older version and overwritten the update I had already installed.

I appreciate any info you all might be able to share.

Dave
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  #128  
Old 02-19-2014, 10:50 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by tdcody View Post
I appreciate any info you all might be able to share.
Here's a synopsis:
  • Most people reporting issues to their dealer have been given various dismissive responses and have not been taken seriously.
  • _Bryan_ had the problem somewhat ameliorated after the dealer replaced a cabin temperature sensor. He reports his system is still "sub-par".
  • Right now we are waiting to see what happens with jeepwes' vehicle. It's a proven case that has been unambiguously demonstrated and the STAR team is prompting further investigation.
  • If you want to go to a dealer now, I suggest documenting the issue the way jeepwes did, with a video demonstration: 2014 Jeep Grand Cherokee HVAC Issues.
  • If you don't want to make a video, at least photograph some oven thermometers in the vents/cabin showing the vent/cabin temperature next to the uConnect climate setting value (e.g. 60 F).
  • With this issue, vent temps can get up to 130 F while the climate control is set to 60 F, so it shouldn't be hard to demonstrate.
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  #129  
Old 02-20-2014, 06:16 PM
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I have the same problems with my 2014 GC my dealer even took a new one off the lot and it did the same 130 temp heat when set on 60. I called jeep corp they stated they never heard of this problem.. I then filed a complaint with NHTSA. WEB SITE IS NHTSA.GOV they took my complaint and stated they would get back to me in 4 to 6 weeks. She also stated the more complaints they get the better to issue a recall. The number is 1888 327 4236. This problem is crazy my 12th jeep and NEVER had this problem before.
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  #130  
Old 02-21-2014, 12:18 PM
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Re: Problem With 2014 Grand Cherokee Heater

ok... I had mine in yesterday for a bunch of things, one of them was this. It has happened on almost every start. well guess what? NPF (No problem found!) GRRR... I started it up and left... and well, its not doing it?? the fan speed calmed down and i didnt get cooked.
First time in months?

They did the trans update, and the hvac flash (for the auto on remote start) ... im sure it will happen again, but odd it decides to stop NOW
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  #131  
Old 02-21-2014, 05:11 PM
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Re: Problem With 2014 Grand Cherokee Heater

Not sure how helpful this is, and I'm not sure I actually believe it, but my Jeep "case manager" told me today that they have an engineer scheduled to fly to the dealership from Detroit next week to review the issue. I asked again if he meant that someone is flying from Detroit to look at the vehicle and he said yes.

I asked if there is a TSB yet and he said no, but they are aware of enough heater problems that they are trying to figure out what is wrong.
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  #132  
Old 02-21-2014, 09:31 PM
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Originally Posted by s542001 View Post
Not sure how helpful this is, and I'm not sure I actually believe it, but my Jeep "case manager" told me today that they have an engineer scheduled to fly to the dealership from Detroit next week to review the issue. I asked again if he meant that someone is flying from Detroit to look at the vehicle and he said yes. I asked if there is a TSB yet and he said no, but they are aware of enough heater problems that they are trying to figure out what is wrong.
My dealer had a tech in from Detroit on my original Grand. We spoke for a bit and took a test drive together. This was to troubleshoot the always on headlight issue I was having. So if they are bringing in a tech that's a good thing. The tech they brought in just for the headlight issue found residual code for a setting they opted not to use turned on and enabled on mine (terminal mode). He was able to turn it off and fix the issue while there and I believe there is a TSB or STAR case for it created from that visit. They did have it for a couple of days for other issues but those techs are pretty good people and know their stuff for the systems they are responsible for. This will definitely benefit the group!!
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