2015 Tranny TSB 21-019-17 Dated 4/22/17 - 2014+ Jeep Cherokee Forums
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post #1 of 14 (permalink) Old 04-26-2017, 06:10 PM Thread Starter
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2015 Tranny TSB 21-019-17 Dated 4/22/17

Heads up on a new TSB 21-019-17 dated 4/22/17 for NAFTA, APAC and EMEA markets for 2015 2.4L & 3.2L to flash the TCM for "Transmission Diagnostic and Shift Enhancements".
http://www.wk2jeeps.com/Misc/Cheroke..._21_019_17.pdf

"THIS SERVICE BULLETIN IS ALSO BEING RELEASED AS RAPID RESPONSE TRANSMITTAL (RRT) 14-094."

2015 White/Black Limited | 3.2-L V6 | Active Drive II | Tech Grp | Lux Grp | Trailer Tow Grp | SafetyTec | Uconect 8.4AN | 9 Speakers | Tonneau Cover | Born 09-06-14 : (( (( (( (( (( (( (( :
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post #2 of 14 (permalink) Old 04-28-2017, 10:29 AM
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Thanks for the heads up. I'm not planning on any dealer visits/oil changes for awhile. We'll see how this one shapes out.

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Granite Crystal, 3.2L V6, 8.4 Nav, black leather, sunroof, tow, tech, comfort/conv, no hood decal, 9 speakers, CD player, Maximum Care lifetime warranty, Mopar first aid kit, rear rubber cargo mat, Thule Aeroblade cross bars (black), Thule Rapid Aero feet, Kuat Vagabond X cargo basket, RRO rock rails with smooth covers, Mopar door sills, Raingler ceiling net, Raingler seat headrest handles, MFC aluminum lift kit, RRO winch bar and Warn M8000S winch, BFG T/A KO2s
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post #3 of 14 (permalink) Old 05-04-2017, 10:27 AM
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Anyone out there get this latest update yet? Improvement?

2015 Cherokee Limited
True Blue Ext. Indigo Blue/Brown Int.
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post #4 of 14 (permalink) Old 05-04-2017, 09:56 PM
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Cool. Maybe it will give me back 2nd gear on downshift that I just lost with the last update.
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post #5 of 14 (permalink) Old 05-04-2017, 10:35 PM
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Flashed mine yesterday. Still evaluating improvements.
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post #6 of 14 (permalink) Old 05-05-2017, 09:24 AM
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What 2015 model build date did it come out for?
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post #7 of 14 (permalink) Old 05-06-2017, 11:54 AM
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I just checked my VIN on FCA site, and it hasn't shown up. I am wondering if this only applies to those who has MIL illuminated.

2015 Jeep Cherokee 4x4 Limited V6 w/ Uconnect 8.4AN
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post #8 of 14 (permalink) Old 05-06-2017, 01:31 PM
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Just got back from and oil change at the dealer and no update for this KL.

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post #9 of 14 (permalink) Old 05-06-2017, 01:37 PM
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I don't see anything on Mopar either. I'm bummed as the S-55 broke my 3-2-1 downshift and I'd love it back :-(
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post #10 of 14 (permalink) Old 05-07-2017, 06:43 PM
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Quote:
Originally Posted by Snowhawk2015 View Post
Flashed mine yesterday. Still evaluating improvements.
Since the flash (375 miles), I've had no hard down shifts in Auto mode. Previously it was about once a day.
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