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  #265  
Old 03-19-2014, 08:33 PM
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Re: Problem With 2014 Grand Cherokee Heater

My GCO is an Apr 2013 build. I haven't experienced the HVAC issues outlined in this thread. In fact, compared to all my other GC's it's nice to finally have an HVAC system that works and can keep up with sub-zero weather.

I do have an HVAC problem that I haven't seen anyone complain about yet. I use the Auto setting with my temp set at 74 degrees. The blower fan doesn't come on immediately but rather a few minutes later after the engine warms some. To my knowledge that is normal operation.

One day after work the blower fan didn't come on, even after switching to manual mode and running the fan speed up on the display screen and changing the vent settings. Nothing after shutting the HVAC off and turning it back on several times. The vehicle was at normal engine operating temp.

I drove it over to the dealer and debated on whether to leave the vehicle running so I could get someone to come out and see it malfunctioning. I decided to shut it off and restart it to see if it would reset itself. Sure enough, the blower fan came on when I restarted the vehicle and turned the HVAC back on.

I've had that happen a total of 3 times so far. The last time it happened, I shut the HVAC and the vehicle off and restarted it 3 times... the last time also getting out of the vehicle and locking and unlocking the door before I could get the blower fan to come on.

One other customer reported this same problem to my dealer. One of their techs had been doing some research into the problem and found that there's an issue with one of the HVAC modules "retaining a memory" and the fix is to replace the module. I guess this worked for the other guy so far and mine's scheduled to have this module replaced next Monday. We'll see how that goes.

LOL... I sure hope this "fix" doesn't end up creating more problems than it solves.
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  #266  
Old 03-20-2014, 01:29 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by MDBones View Post
My GCO is an Apr 2013 build. I haven't experienced the HVAC issues outlined in this thread. In fact, compared to all my other GC's it's nice to finally have an HVAC system that works and can keep up with sub-zero weather.

I do have an HVAC problem that I haven't seen anyone complain about yet. I use the Auto setting with my temp set at 74 degrees. The blower fan doesn't come on immediately but rather a few minutes later after the engine warms some. To my knowledge that is normal operation.

One day after work the blower fan didn't come on, even after switching to manual mode and running the fan speed up on the display screen and changing the vent settings. Nothing after shutting the HVAC off and turning it back on several times. The vehicle was at normal engine operating temp.

I drove it over to the dealer and debated on whether to leave the vehicle running so I could get someone to come out and see it malfunctioning. I decided to shut it off and restart it to see if it would reset itself. Sure enough, the blower fan came on when I restarted the vehicle and turned the HVAC back on.

I've had that happen a total of 3 times so far. The last time it happened, I shut the HVAC and the vehicle off and restarted it 3 times... the last time also getting out of the vehicle and locking and unlocking the door before I could get the blower fan to come on.

One other customer reported this same problem to my dealer. One of their techs had been doing some research into the problem and found that there's an issue with one of the HVAC modules "retaining a memory" and the fix is to replace the module. I guess this worked for the other guy so far and mine's scheduled to have this module replaced next Monday. We'll see how that goes.

LOL... I sure hope this "fix" doesn't end up creating more problems than it solves.

It seems possible by others comments on here that the earlier dates did not have this issue. I saw someone post that their heater was ok till they had an update done and then that caused the super hot air issue.
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  #267  
Old 03-20-2014, 01:33 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by jeepwes View Post
I am moving with legal action. Going to let the lemon firm look at this issue with their techs Monday morning. Not sure what will come of it but will not hurt to investigate this route.

My case worker has given me nothing yet for this issue besides three visits with no fix. He calls or emails very few days and says he will get back to me with the same message. Definitely feel like I am getting no where.
I plan on posting my video to car forum reviews.

Well, I heard back from my case worker today from Jeep. Of course the system works as designed. I was offered three years of oil changes as compensation. Not going to take those till I hear back from the legal firm. I will keep it till end of summer and dump it then if this cannot be fixed, as its very annoying.

The lemon law legal firm tech took a look at it, took readings and also pointed out to me that my gas cap door is the wrong gray! lol I said thanks for pointing that out lol. He did say there are alot of complaints on the jeeps coming in these days and he acknowledge it was odd how the heater was behaving in the beginning. So now stuck waiting to hear from legal.

My guess is that nothing can be done and Jeep is going to just ignore it till they get enough people calling. The tech from the legal firm also claimed that Jeep was the worst for customer service, he said most auto brands will try to work with you but that Jeep just does not care at all for the customers. Back to non usa cars for me I guess.
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  #268  
Old 03-20-2014, 01:59 PM
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Re: Problem With 2014 Grand Cherokee Heater

No go on legal action. Looks like another new car before winter if not fixed. Jeep closed my case, nothing else they can do. Hopefully someone finds the issue on here and shares the solution! Thanks
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  #269  
Old 03-20-2014, 08:20 PM
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Re: Problem With 2014 Grand Cherokee Heater

Man, that sucks. I'm always leery of software updates and module replacements. You never know if the problem will be fixed or if you're just trading the current problem in for some other problem.

I'll find out next Monday...
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  #270  
Old 03-21-2014, 02:32 PM
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Originally Posted by jeepwes View Post
No go on legal action. Looks like another new car before winter if not fixed. Jeep closed my case, nothing else they can do. Hopefully someone finds the issue on here and shares the solution! Thanks
That's really odd. What's the point of having a lemon law if, say, all Toyota had to do would be to claim that their vehicles would occasionally self-accelerate without driver control "by design" and then close the customer repair ticket?

Seems like something an arbitrator would be useful for. I know in my state we have lemon arbitration that is binding on the manufacturer (the customer can choose whether to accept it or pursue a suit).
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Old 03-21-2014, 05:51 PM
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Re: Problem With 2014 Grand Cherokee Heater

Seems like something an arbitrator would be useful for. I know in my state we have lemon arbitration that is binding on the manufacturer (the customer can choose whether to accept it or pursue a suit).[/QUOTE]

PA does have this also, but unfortunately they did not decide to pursue it. Guess I hope for a fix by winter.
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Old 03-25-2014, 02:16 PM
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My 2014 Jeep Grand Cherokee HVAC/Climate Control will not maintain temperatures, it has multiple issues. 1 - Ambient temperature, 30 deg. I set it on auto 70 deg. The Climate Control will work for a while and then start blowing hot, heater will continue to blow high, I will have to turn fan down manually. 2 - same ambient temperature. I have it set on auto 70 deg. After about 20 miles the temperature will start dropping until you are freezing. I have to turn it up to above 80 deg. then it will get hot, have to turn it down again, I had to do this continually on a 250 mile trip in Feb. 3 - Ambient temperature was 74 deg. Set on auto 72deg. Seemed to be working fine then the fan went to high and continued to blow cold air, I had to turn fan to low and manually keep setting temperature to maintain a comfortable cabin. I have taken to the dealer multiple times, at first they told me it was normal but now I am told it is a known issue without a resolution, engineers are working on it. I have had this issue since new, my Jeep Grand Cherokee Summit is now is going on 4 months and 3500 miles. This is a safety issue due to the fact I have to continue to adjust the controls taking my attention off the road. Chrysler / Jeep needs to make this a top priority to correct. So far the dealer says the Jeep Tech. is working on it and Chrysler / Jeep customer support has been of no assistance on this issue.
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  #273  
Old 03-25-2014, 02:51 PM
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Re: Problem With 2014 Grand Cherokee Heater

Quote:
Originally Posted by John Katan View Post
My 2014 Jeep Grand Cherokee HVAC/Climate Control will not maintain temperatures, it has multiple issues. 1 - Ambient temperature, 30 deg. I set it on auto 70 deg. The Climate Control will work for a while and then start blowing hot, heater will continue to blow high, I will have to turn fan down manually. 2 - same ambient temperature. I have it set on auto 70 deg. After about 20 miles the temperature will start dropping until you are freezing. I have to turn it up to above 80 deg. then it will get hot, have to turn it down again, I had to do this continually on a 250 mile trip in Feb. 3 - Ambient temperature was 74 deg. Set on auto 72deg. Seemed to be working fine then the fan went to high and continued to blow cold air, I had to turn fan to low and manually keep setting temperature to maintain a comfortable cabin. I have taken to the dealer multiple times, at first they told me it was normal but now I am told it is a known issue without a resolution, engineers are working on it. I have had this issue since new, my Jeep Grand Cherokee Summit is now is going on 4 months and 3500 miles. This is a safety issue due to the fact I have to continue to adjust the controls taking my attention off the road. Chrysler / Jeep needs to make this a top priority to correct. So far the dealer says the Jeep Tech. is working on it and Chrysler / Jeep customer support has been of no assistance on this issue.
Yes, they are working on it. I believe I read that they expect a fix in the second quarter. Not specifically because you called.

Safety issue

If you really think you are creating an unsafe condition, then just open and close the window a little. You should be able to feel where the button is without looking. Don't knowingly risk your life because you are a little uncomfortable.

And stop texting while driving...


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  #274  
Old 03-25-2014, 03:16 PM
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Re: Problem With 2014 Grand Cherokee Heater

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Originally Posted by John Katan View Post
I have taken to the dealer multiple times, at first they told me it was normal but now I am told it is a known issue without a resolution, engineers are working on it. I have had this issue since new, my Jeep Grand Cherokee Summit is now is going on 4 months and 3500 miles.
The evolution of reactions regarding this issue by Chrysler, the dealers, and even some of the denizens of this forum has served to remind me of this quote:
"All truth passes through three stages: First, it is ridiculed; Second, it is violently opposed; Third, it is accepted as self-evident."
― Arthur Schopenhauer
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Old 03-25-2014, 09:19 PM
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Re: Problem With 2014 Grand Cherokee Heater

Will keep everyone posted but I heard from my case manager, who said that they expect to have the software patch next week for the HVAC issue on my December build Summit diesel. She said that they expect to replace the control unit at the same time.

As someone else said, I hope it's not trading one problem for another.
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Old 03-26-2014, 09:28 AM
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Quote:
Originally Posted by s542001 View Post
Will keep everyone posted but I heard from my case manager, who said that they expect to have the software patch next week for the HVAC issue on my December build Summit diesel. She said that they expect to replace the control unit at the same time. As someone else said, I hope it's not trading one problem for another.
One would hope they would try the software fix first and if not resolved then the head unit. Changing both at the same time will not pinpoint the culprit. If it takes a new head unit I am all for that but changing two things at once is not troubleshooting that is a shotgun approach and as mentioned may cause other issues.
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