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  #13  
Old 08-18-2013, 05:32 PM
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Re: 2014 Grand Cherokee Overland Transmission problems

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Originally Posted by archergirl View Post
Back into the shop again at a different dealer this time with my 2014 GC Laredo. Told me they did a "transmission update", but the paperwork states "flashed TCM up to date". So they didn't actually do or find anything.
um, actually, they did exactly what they said. TCM is the Transmission Control Module, which, um , controls the transmission. "Flashing" it (loading new code into it) is exactly a "transmission update"

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Old 09-17-2013, 03:04 PM
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Re: 2014 Grand Cherokee Overland Transmission problems

Hi all,

Wanted to follow up on my problem. Chrysler sent their district rep out to drive the car with me and he experienced what many of you are talking about. The horrid shifting, for me, both up and down. He had a Chrysler engineer come out and look at my transmission since the service depts are not allowed to touch the transmissions. After three weeks, they have told me they ordered a new valve body and that my car appears to be working properly. They will be driving it and testing it for the next few days and then I should get it back. I will update again once I have the car back.
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Old 10-08-2013, 05:44 PM
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Re: 2014 Grand Cherokee Overland Transmission problems

Hi All I have been having the same issue on my jeep with the transmission. I took my jeep in to get serviced with SERVICE BULLETIN 21-007-13, DATED AUGUST 03, 2013 but the issue continued but behaved differently. The most noted change was that the engine would rev at 2500 RPM before switching from 1st to 2nd gear primarily when the jeep was cold. I recetly came across a new bulletin (21-007-13 REV. A) Dated September 11, 2013 (Rapid Response Transmittal 13-066) and decided to take my Jeep in to the dealership. Their ADP system did not list the new Service bulletin for my car. I asked them to take a closer look and read the service bulletin I provided. It clearly states that it superseded the original service bulletin which was showing up on their ADP system. They finally gave in and flashed the Transfer Case Drive Train Control Module (DTCM) and the Transmission Control Module (TCM) with new software. So far everything seems to be good. Here is the link to the site where i found the information Jeep Grand Cherokee WK2 - Grand Cherokee Service Bulletins and Recalls

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