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  #1  
Old 08-18-2014, 12:01 PM
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TSB 08-053-14 (Electrical and HVAC)

Just a head's up for y'all.

I brought my D in for regular maintenance over this past weekend, and they informed me that "RRT 14-050" needed to be performed. (This is also listed as TSB 08-053-14a). Applies to all '14 Durangos / Grand Cherokees built before May 6, 2014.

Normally, TSBs are not performed unless a customer comes in with symptoms that fit. However, my understanding is that any TSB that as an RRT ("Rapid Response Transmittal") must be performed, similar to a recall.

http://www.wk2jeeps.com/tsb/tsb_wk2_0805314a.pdf

The only symptom I recall that I may have witnessed myself is the "significant delay to update the ambient air temperature display."

I have noticed in the few days since the update that my auto climate control seems to work much more reliably than it had in the past. Up until now it seemed like there were times when I would have to move the temperature up or down much more than I would expect to get the desired effect. For example, if it was 65 degrees ambient and my temp control was set at 74, it would often blow colder air than I would expect. I would have to nudge the temp up to 80 in order to get the colder air to stop.

If it is either very hot or very cold outside it didn't seem to be an issue...but if the ambient temperature was "average" is when I would notice this most.

Anyway, now the HVAC auto temp control seems to work much better. Just change the temp a degree or two and the temperature and fan act as I would expect.

So if your HVAC auto temp control just doesn't seem 'right' to you, make sure you get this TSB / RRT performed.

Just a couple notes: On the trip home from the dealer, my HVAC was acting strange and blowing hot air continuously when in auto mode. This corrected itself after one or two engine restarts.

Also, check your system settings. After the update, some of my settings for locks, horn, and lights changed, so I had to change them back.
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Old 08-18-2014, 12:29 PM
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Re: TSB 08-053-14 (Electrical and HVAC)

Wow i thought it was weird with hvac controls sometimes. I park in a large indoor garage, and when i pull my car out, it is more often then not 90f or higher.
Takes 10+ mins before the outdoor temp changes to something lower, i have full blast ac in my face with auto.
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Old 08-21-2014, 08:21 AM
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Re: TSB 08-053-14 (Electrical and HVAC)

I've noticed this too to some degree (though I don't drive the car often). My wife doesn't use the Auto setting, but even in manual mode it seems to take some time to "catch-up" to the temperature differentials.

I'm headed to the dealer for a second attempt to repair a non-working 2nd row console USB port on Monday. I'll ask them about this too.
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Old 08-24-2014, 07:13 AM
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Re: TSB 08-053-14 (Electrical and HVAC)

JoeyD, Thanks for the info. I to have the same complaints. Yesterday when heading home from North Carolina at 3:30 in the morning my HVAC was not working at all, not on auto or manual. Lights would come on for ac but nothing. Pulled over shut off car and restarted and all was well again.
On an other note the front bumper on passenger side where it meets the fender is starting to stick out quite a bit. Anyone else have this happen? Not sure if its just a clip or something. It has not been hit or anything. When I first noticed it it was minor and it easily just kind of pushed back in. Now its getting worse. Will be bringing it in soon and ask about the updates as well.
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Old 09-03-2014, 09:43 PM
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Re: TSB 08-053-14 (Electrical and HVAC)

I just had the TSB performed today and it totally screwed up my AC (it was working OK before). It's now blowing warm air in AUTO through the feet vents, even though it's 85 outside...

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Old 09-03-2014, 09:55 PM
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Quote:
Originally Posted by Jarek0423 View Post
I just had the TSB performed today and it totally screwed up my AC (it was working OK before). It's now blowing warm air in AUTO through the feet vents, even though it's 85 outside...

I had the same thing happen and dealer did not know what to do. Went home and solved myself; just unhook the battery terminal and leave it off a half hour or so and then put it back on. Thats it fixed it for me. It just resets everything and lets it come back up gracefully. Good luck
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Old 09-03-2014, 10:00 PM
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Re: TSB 08-053-14 (Electrical and HVAC)

Lame question alert: How do I unhook the battery??? (I have the 2014 Grand Cherokee)
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Old 09-03-2014, 10:07 PM
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Quote:
Originally Posted by Jarek0423 View Post
Lame question alert: How do I unhook the battery??? (I have the 2014 Grand Cherokee)
Mine is 2014 also. Slide the passenger seat all the way forward. From the passenger back seat, lift up the cover under the passenger seat, the battery is in there. Use a 10 millimeter wrench and losen the negative battery terminal and pull it off. Leave un hooked fof about half hour and replace it. Make sure to tighten back up well. That should fix it , it fixed mine after the flash
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Old 09-04-2014, 06:02 AM
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Re: TSB 08-053-14 (Electrical and HVAC)

Quote:
Originally Posted by Jarek0423 View Post
I just had the TSB performed today and it totally screwed up my AC (it was working OK before). It's now blowing warm air in AUTO through the feet vents, even though it's 85 outside...

As I indicated in my original post, this happened to me as well. It solved itself for me after a restart or two. (I didn't need to unhook the battery. (For 100% disclaimer, I believe I also changed it to manual A/C control for a while, and then back to Auto.)

Long story short...by the time I got home from the dealer (and stopping at a gas station on the way home to fill up), the problem solved itself.

Again...be sure to check your settings for door locks, lights, horn, etc after this flash. Some of these may have also been changed by the update.
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Old 09-04-2014, 06:05 AM
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Re: TSB 08-053-14 (Electrical and HVAC)

Quote:
Originally Posted by fk186 View Post
On an other note the front bumper on passenger side where it meets the fender is starting to stick out quite a bit. Anyone else have this happen?
I have not seen this on mine. Though I'm still depressed at getting a nice scratch on the hood from some kind of rock or other debris on the highway on my last road trip.

It was going to happen sooner or later...I was just hoping for later. Sigh.
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Old 09-04-2014, 06:10 AM
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Yeah mine went through several restarts by me and dealer put it through several restarts as well as a full diagnostic on their computer and the AC was still busted. Cable pull was only thing that fixed it. So yeah give it a chance to resolve by itself but if not pull the cable
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