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  #13  
Old 09-27-2014, 08:28 AM
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Re: New Flash 845RE Transmission Quick Learn

Let us know how that casework ends up for you.

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  #14  
Old 09-27-2014, 08:36 AM
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Re: New Flash 845RE Transmission Quick Learn

Quote:
Originally Posted by GCLimited View Post
Same here, but my rough downshifts into 1st gear crawling to a stop started all of a sudden at about 5,000 miles on my 12/13 build 2014 Overland V6 4x4.

My case has just recently been escalated to case management for further review...

"Sincerely,
LOGAN
Customer Assistance Center"

Dear Customer:

Case #: XXXXXXXX
VIN: 1C4RJFCG2XXXXXX
Vehicle Description: JEEP GRAND CHEROKEE OVERLAND 4X4 SPORT UTILITY 4-DR

Hello, my name is Logan, and I have been assigned as your case manager. This email is confirmation that your case, XXXXXXXX, was successfully escalated to me. After I review the details of your case I will be calling you at your preferred number, XXX-XXX-XXXX, within the one business day as promised. My office hours are 8:30AM 4:00 PM (Mountain Time). My contact information is 800.763.8422 EXT 40619. If your preferred telephone number mentioned above isn't correct, please reply with the correction.

hmm so both you and MD had trans that shifted fine for the first several thousand miles and then suddenly started with roughness. I certainly don't know for sure but that almost makes me think of a mechanical issue given those events. maybe valve body like MD was talking about? you had two of them do this though right an early model 14 and mid model 14 right?
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Old 09-27-2014, 09:11 AM
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Re: New Flash 845RE Transmission Quick Learn

From the 21-030-14 TSB...

NOTE: Transmission Quick Learn must be performed anytime the transmission is
repaired/replaced and/or the Valve Body/TCU assembly (mechatronic) is
replaced.
It must also be performed when the adaptation memory cells are
cleared with the wiTECH diagnostic scan tool. Transmission Quick Learn is
also one of the first steps to remedy a transmission shift quality concern on
these vehicles.


Funny how they specifically mention having to perform the TSB if the valve body is being replaced.

I believe Chrysler knows they are having issues with it. Unfortunately, replacing it is a last resort that will require an owner to have to make a royal PITA out of themself before they finally give in and do it.

Software fixes can only do so much if the basic problem is really a mechanical one. It's really just a bandaid.
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Old 09-27-2014, 09:15 AM
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Re: New Flash 845RE Transmission Quick Learn

Quote:
Originally Posted by silvermax04 View Post
hmm so both you and MD had trans that shifted fine for the first several thousand miles and then suddenly started with roughness. I certainly don't know for sure but that almost makes me think of a mechanical issue given those events. maybe valve body like MD was talking about? you had two of them do this though right an early model 14 and mid model 14 right?
There are a quite a number of owners reporting having the harsh shifting out here. Out of all the posts I've read it seems that the only ones reporting having the issue fixed (so far) are the ones who had the valve body replaced.

The transmission shift quality was the thing I was most impressed with when I got my 14. I couldn't say enough good things about it. It still is unless it's down shifting 2-1... LOL.
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  #17  
Old 09-27-2014, 10:49 AM
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Re: New Flash 845RE Transmission Quick Learn

Quote:
Originally Posted by MDBones View Post
From the 21-030-14 TSB...

NOTE: Transmission Quick Learn must be performed anytime the transmission is
repaired/replaced and/or the Valve Body/TCU assembly (mechatronic) is
replaced. It must also be performed when the adaptation memory cells are
cleared with the wiTECH diagnostic scan tool. Transmission Quick Learn is
also one of the first steps to remedy a transmission shift quality concern on
these vehicles.

Funny how they specifically mention having to perform the TSB if the valve body is being replaced.

I believe Chrysler knows they are having issues with it. Unfortunately, replacing it is a last resort that will require an owner to have to make a royal PITA out of themself before they finally give in and do it.

Software fixes can only do so much if the basic problem is really a mechanical one. It's really just a bandaid.
I think you are right MD. I wonder if the valve body is the part that Chrysler mucked with when building them? They did things to the 845RE vs the 8HP70 that they just bought and dropped in. replacing valve bodies is probably a very expensive fix. given they run fine for the first several thousand and then issues start I wonder if we are going to start seeing more of this as they age?
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Old 09-27-2014, 12:08 PM
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Re: New Flash 845RE Transmission Quick Learn

Quote:
Originally Posted by silvermax04 View Post
I think you are right MD. I wonder if the valve body is the part that Chrysler mucked with when building them? They did things to the 845RE vs the 8HP70 that they just bought and dropped in. replacing valve bodies is probably a very expensive fix. given they run fine for the first several thousand and then issues start I wonder if we are going to start seeing more of this as they age?
guess if this happens to me then i'll get rid of it.I'm not playing flash games with these guys, and having to "beg" to replace the VB. I gave mopar/fiat a shot, and that will be the end of it. it'll be back to my "Japanese" mfg'd "made in usa" vehicles. call it what you want, but never had issues with these mfg's.
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  #19  
Old 09-27-2014, 12:15 PM
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Re: New Flash 845RE Transmission Quick Learn

Quote:
Originally Posted by silvermax04 View Post
I think you are right MD. I wonder if the valve body is the part that Chrysler mucked with when building them? They did things to the 845RE vs the 8HP70 that they just bought and dropped in. replacing valve bodies is probably a very expensive fix. given they run fine for the first several thousand and then issues start I wonder if we are going to start seeing more of this as they age?
Having this happen in stop'n go city traffic is one thing but when I get stuck in bumper to bumper traffic out on a stretch of highway I take the trans never shifts up above 2nd due to the traffic crawl. So every time I have to stop I get the double or triple slam as it goes back into first.

I can't imagine that's good for the trans or even the drive train long term. Premature trans failure is a legit concern under those circumstances.

I'd imagine replacing a valve body is quite expensive so I'd suspect Chrysler will exhaust all other "possibilities" before replacing it even though they may already know it's the problem.

Kind of reminds me of the defective warped disc brake rotors they refused to acknowledge between 93 and 02.
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  #20  
Old 09-28-2014, 12:37 PM
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Re: New Flash 845RE Transmission Quick Learn

Quote:
Originally Posted by airgas1998 View Post
guess if this happens to me then i'll get rid of it.I'm not playing flash games with these guys, and having to "beg" to replace the VB. I gave mopar/fiat a shot, and that will be the end of it. it'll be back to my "Japanese" mfg'd "made in usa" vehicles. call it what you want, but never had issues with these mfg's.
Bought mine 4/13. Multiple transmission problems. Complete runaround with Chrysler/Jeep customer service(worst customer service in my 65 years). I am tired of useless trans. "Flashes". I love the rest of the vehicle but I will trade it in December 2015. Jeep Corporate should learn how to treat and keep their customers. Not sure what to get next but I do not hear Jeep calling my name.
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  #21  
Old 09-29-2014, 08:41 AM
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Re: New Flash 845RE Transmission Quick Learn

Quote:
Originally Posted by airgas1998 View Post

guess if this happens to me then i'll get rid of it.I'm not playing flash games with these guys, and having to "beg" to replace the VB. I gave mopar/fiat a shot, and that will be the end of it. it'll be back to my "Japanese" mfg'd "made in usa" vehicles. call it what you want, but never had issues with these mfg's.
My thoughts exactly airgas...I'm tired of this shit. My early build 2014 Limited (4/13) shifted poorly from day one. After a couple battery disconnects & two reflashes things were better, but never 100%. Got tired of taking it to the dealership, and traded it in for a later build 2014 Overland (12/13). I figure I lost about $4,000 in depreciation trading the Limited in so early for the Overland.

How Chrysler treats me this time around will determine if I remain a customer or not. Not only am I going to mention the new TSB for the transmission reflash and a possible valve body replacement, I'm also going to mention Chrysler somehow reimburses me in some way for all my troubles.

This is your last chance Chrysler.
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Old 09-29-2014, 08:59 AM
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Re: New Flash 845RE Transmission Quick Learn

Dream on ... They do not stand behind the product. When OCR module failed, I found out that it was on backorder and they refused to give back my car as it was safety issue.

I begged for loaner, which I didn't get. Finally was able to get reimbursed for "economy rental" so I could at least do grocery and baby supplies shopping. On top of it I had to cancel my vacation and my family got stuck at home as I was not able to reschedule.

Ohhh and OCR failed 3 hours from home. With kid in the back and Jeep flashing at me with sounds and messages that was a very stressful trip home.

Regardless of many complains I have nor heard sorry. Chrysler is not capable of selling 50k cars. Get over it or should i myself.

Venting off.


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Old 09-29-2014, 11:23 PM
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Re: New Flash 845RE Transmission Quick Learn

Guys, I just got my 2015 Overland (V6 4WD) last Friday and I noticed on the first day that the transmission shifts quite hard (with a bang) when driving at slow speeds, such as in a parking lot. The harsh shift only occurs when upshifting from 1st to 2nd gear, and then only when there is no throttle applied. In other words, if I accelerate lightly and then let of the gas before the transmission shifts into 2nd gear, I get a bang every time. One guy mentioned in another thread that he had the same problem and it was fixed by a TCM relearn procedure. My vehicle only has 120 miles on it, so should I wait a few hundred miles to see if it smooths itself out?

I have my fingers crossed that buying this Jeep wasn't a mistake that will give me constant headaches in the near future. If so, I'll pray that Toyota hurries with their next new generation 4Runner....LOL
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Old 09-30-2014, 08:21 AM
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Re: New Flash 845RE Transmission Quick Learn

Quote:
Originally Posted by MSCA View Post
Guys, I just got my 2015 Overland (V6 4WD) last Friday and I noticed on the first day that the transmission shifts quite hard (with a bang) when driving at slow speeds, such as in a parking lot. The harsh shift only occurs when upshifting from 1st to 2nd gear, and then only when there is no throttle applied. In other words, if I accelerate lightly and then let of the gas before the transmission shifts into 2nd gear, I get a bang every time. One guy mentioned in another thread that he had the same problem and it was fixed by a TCM relearn procedure. My vehicle only has 120 miles on it, so should I wait a few hundred miles to see if it smooths itself out?

I have my fingers crossed that buying this Jeep wasn't a mistake that will give me constant headaches in the near future. If so, I'll pray that Toyota hurries with their next new generation 4Runner....LOL
Why would you want to wait? I'd contact the dealer and have them go for a ride with you so they know exactly what you are experiencing. If they do the relearn procedure, test drive it without you, and it still isn't fixed then there might be more of a problem. But in the end it is your call if you want to wait.
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