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  #1  
Old 01-02-2015, 06:27 PM
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Climate Control Question

Hello All. I have a 2015 JGC Limited and have found the climate control to be a bit of a hassle. I have about a 1 hour daily commute. With the temperature now in the 30's or lower, if I set the Climate Control temperature to 70, it gets so hot I can't stand being in the vehicle. If I deal with it, the temperature settles down to a somewhat comfortable level. About 20 minute into my commute, the system starts to blow ice cold air, and I need to turn the temperature to 76 or so to get it to stop. So basically I can get either super hot or ice cold air to blow, not really anything in between. The switch from hot to cold seems to be based on time. Anyone else experience this?

Jim

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  #2  
Old 01-02-2015, 06:56 PM
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Re: Climate Control Question

Yep, same thing. I auto start it just to get warm and as soon as I get in drop it down to 75, 10 minutes in to my drive I am cooking. I usually end up dropping it back to 68 but it takes another 5-10 before it cools off. After all that I it seems to adjust properly though if I go from warmer to cooler.
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  #3  
Old 01-02-2015, 07:01 PM
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Re: Climate Control Question

Cranking the temp up and down trying to compensate for this doesn't solve the problem... it only aggravates it further.

This was a problem for a number of people on the 2014's. There were TSB's issued for it in 2014 so I'd suggest having your dealer's service department take a look at it and see what can be applied to your 2015. It's a software flash, so it's fixable. I'm a little surprised that this still remains an issue.

One thing you can try to see if it makes a difference...

I use auto for my HVAC but I turn it off prior to shutting the engine off. When I restart the car, I wait until my UConnect system comes fully on and stabilizes itself before I hit the auto button to turn the HVAC back on. I consider my UConnect to be "on and stabilized" when the blue glow appears around the "3G" just to the upper right of the Apps icon.

I know that sounds funny but I had a couple of times where my HVAC failed to come on at all regardless of what buttons or soft keys I used. I had to shut the vehicle off, open and close the driver door and then restart the vehicle to get the HVAC to work. And in those instances I allowed the UConnect to fully come up before I turned on the auto HVAC. So I got in the habit of doing this and never had the problem again.

See if that changes anything for you until you can get it in for service.
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Old 01-02-2015, 08:31 PM
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Re: Climate Control Question

Don't get me wrong; I love my 2015 Summit. I just have to chuckle remembering how I could fix ANYTHING including the heater valve and core on my little 72 MGB when I was a kid- all it took was time, some tools, and maybe I would have to spring for a part.


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Old 01-02-2015, 08:48 PM
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Re: Climate Control Question

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Originally Posted by Zimmersci View Post
Don't get me wrong; I love my 2015 Summit. I just have to chuckle remembering how I could fix ANYTHING including the heater valve and core on my little 72 MGB when I was a kid- all it took was time, some tools, and maybe I would have to spring for a part.
LOL... I remember those shade tree mechanic days well.
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Old 01-02-2015, 10:29 PM
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Re: Climate Control Question

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Originally Posted by Zimmersci View Post
Don't get me wrong; I love my 2015 Summit. I just have to chuckle remembering how I could fix ANYTHING including the heater valve and core on my little 72 MGB when I was a kid- all it took was time, some tools, and maybe I would have to spring for a part.


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I'm started working on my '72 MGB last month Heater valve has always been a problem
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Old 01-02-2015, 11:32 PM
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Re: Climate Control Question

Yep - a problem on all MGs. On my 65 Midget we only used the heater core in case of massive overheating. It was pretty much useless for getting heat into the cabin.

Hell, in all fairness to the mighty 1278cc A series the ol' Midge might have been more reliable than my new diesel. LOL.
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Old 01-02-2015, 11:50 PM
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I had the exact problem on my 2014 it was an oven in the winter and very frustrating, they eventually came out with a flash that fixed it perfect. Had the flash applied as soon as it came out last spring, i set it at 72 auto then and have not touched it since. As suggested above ask your dealer about it, im surprised you are having that issue on a 2015 thought they hsd it worked out but maybe some of the old firmware snuck its way in there or something.
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Old 01-03-2015, 12:19 AM
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Re: Climate Control Question

TSB 24-003-14a seems to relate to the 2014 HVAC issue but only covers prior to April 2014:

This bulletin applies to WK vehicles equipped with Dual Zone Automatic
Temperature Control (sales code HAF) built on or after July 15, 2013 (MDH
0715XX) and on or before April 15, 2014 (MDH 0414XX) and WD vehicles
equipped with 3 Zone Automatic Temperature Control (sales code HAH) built
on or after August 19, 2013 (MDH 0819XX) and on or before April 15, 2014
(MDH 0414XX).

SYMPTOM/CONDITION:
Customers may experience the following condition:
Vehicle cabin temperature seems too warm even after reducing the Automatic
Temperature Control setpoint.
Updating the HVAC software will correct these conditions.

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  #10  
Old 01-03-2015, 12:57 AM
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Re: Climate Control Question

Quote:
Originally Posted by Mozzie View Post
TSB 24-003-14a seems to relate to the 2014 HVAC issue but only covers prior to April 2014:


Temperature Control setpoint.
Updating the HVAC software will correct these conditions.
Had TSB 24-003-14a applied in December for correction of this ongoing climate control issue and YEP another EPIC FAILURE. I see on other JG forums proposed 2016 Refresh Model updates, would be great if JEEP could get the 2014 model corrected FIRST.
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Old 01-05-2015, 04:23 PM
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Re: Climate Control Question

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Originally Posted by silvermax04 View Post
I had the exact problem on my 2014 it was an oven in the winter and very frustrating, they eventually came out with a flash that fixed it perfect.
I wouldn't say it is *perfect*, given that I have still been fighting with it roasting or freezing me from time to time even with the flash, but it is no longer batshit insane like it was last year when I was forced to drive in subzero weather with the window cracked open to avoid being scorched.

What the OP describes sounds similar to what we used to experience, but I highly doubt the firmware in the 2015's would have regressed to the late 2013 code. Occam's razor ranks OP having a defective or miscalibrated unit higher on the list than that possibility. I also seem to recall some people posting that they were able to have the system recalibrated.

To summarize: sorry, man, but you're going to have to go to the dealer. Because the problem was intermittent I took pictures of thermometers in the vents showing the ambient temp with the system setting visible in the background. Had to document the insanity somehow or they will just try to brush you off by telling you "it's supposed to work this way".
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Old 01-05-2015, 05:07 PM
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Re: Climate Control Question

Quote:
Originally Posted by Roadkill View Post
I wouldn't say it is *perfect*, given that I have still been fighting with it roasting or freezing me from time to time even with the flash, but it is no longer batshit insane like it was last year when I was forced to drive in subzero weather with the window cracked open to avoid being scorched.

What the OP describes sounds similar to what we used to experience, but I highly doubt the firmware in the 2015's would have regressed to the late 2013 code. Occam's razor ranks OP having a defective or miscalibrated unit higher on the list than that possibility. I also seem to recall some people posting that they were able to have the system recalibrated.

To summarize: sorry, man, but you're going to have to go to the dealer. Because the problem was intermittent I took pictures of thermometers in the vents showing the ambient temp with the system setting visible in the background. Had to document the insanity somehow or they will just try to brush you off by telling you "it's supposed to work this way".
New firmware may not have done much for yours but Id say its perfect on mine I have zero complaints after the flash, I put it on 72 auto last spring and have not touched it since. past cars I have had to change the temperature between summer and winter seasons with the new flash in place I do not just stays on 72 and leave it.
I agree it would be odd for a 2015 to be experiencing this but its strangely familiar the way its being described.
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