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Old 04-13-2014, 04:50 AM
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Help Request - Climate Control Operation

Hi all.
Some time ago I posted about the strange behaviour of my Summit climate control. The system refuses to retain a set temperature above 21 degrees C. Each time the vehicle is restarted any temp selected above 21 will drop by one degree until it reaches 21.

Originally I thought this problem was unique to my car but during the last four weeks I have had the use of two "loaners", a Limited and a Laredo. Both of these cars were unable to retain a set temp above 21 either.
I have written an email to Jeep Customer Service asking them if this was normal and if so what is the logic of the system operating this way. As yet, of course, I have not received a reply.

Before I make any further attempt to contact Jeep I was wondering whether I could ask my fellow MY14 owners, both here and overseas, to do a simple test on their climate control systems and report back via this thread.

1. Set either/both zone temp to 23 degrees Celsius (or 74 F). Auto or manual mode does not seem to matter.

2. Turn the car off for about 10 minutes. You'll know you've left it long enough if the selected and outside temps initially show "dashes" instead of numbers when you restart.

3. See whether your selected temps have remained at 23/74 or dropped by one degree.

4. Report the result back on this thread along with your build date.

Note: If yours does NOT retain your temp you might like to try again with a temp BELOW 21/74 and see the result.

I am hoping that if I can report to Jeep with data from a number of vehicles that they may just take me seriously.

Thanks in advance.




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Old 04-13-2014, 04:08 PM
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Re: Help Request - Climate Control Operation

Gee I'm devastated...I thought I was the only one with this issue...I will have to find something else wrong now


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Old 04-13-2014, 05:28 PM
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Re: Help Request - Climate Control Operation

Old proverb:
Sometimes it is better to remain silent and have people think you are a fool than speak and remove all doubt.


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Old 04-13-2014, 08:45 PM
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Re: Help Request - Climate Control Operation

Did a small amount of testing this morning for you Dazpad and yes, quirky indeed. I had never noticed before because ours is just set to 19 all the time.

Set to 23 - waited 30 mins - Temp dropped to 22 upon start.

Set to 25 - waited 30 mins - Temp dropped to 23 upon start.

Left it at 23. Waited 30 mins - Temp retained 23.

Reset back to 19 (our usual) - went shopping, so several stops and starts with minimum 30 mins between driving cycles - Retained 19.

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Old 04-14-2014, 12:32 AM
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Re: Help Request - Climate Control Operation

Hey, i have a limited MY14 and have a mate with an MY14 Laredo and both do the same thing as per what you describe. I've reported mine to the dealer four times now and each time they tell me they have "re-calibrated" the system and it should be fine and guess what each time it isn't fine.

Going to try and different dealer in the next week or so and see if they are smarter than the other muppets I've been going to!
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Old 04-14-2014, 06:27 AM
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Re: Help Request - Climate Control Operation

There are others that have had this problem (from what I have read), but it is usually after they switch off the motor, it drops by 1deg each time until it gets to 22C.

I cant help you, but you are not alone.
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