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2015 200 S AWD
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2015 200s awd v6 will shift extremely hard and loud between 4th and 5th gear. Does not do it very often but usually on a hilly back road anyone have any idea how or if this can even be remedied. The car on my has 56,000 miles.
 

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2016 Chrysler 200 S, 1998 Sebring JX
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I had a hard shift between 4th and 5th. Took car to the dealer with 43,431 miles and they performed TSB 21-053-18. TCM flash update for shifting enhancement. Performed TCM flash update pn 68276818AF-AG. LOP 18-19-05-KU 0.20. Performed transmission quick learn LOP 21580140 0.40. Test drive and verified. Problem solved at no charge under warranty. Good luck.
 

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2016 Chrysler 200 S, 1998 Sebring JX
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I've got a 2015 with the 2.4. I have a harsh 4-5 shift as well. The only time I've actually heard (metallic clang) it is when it downshifts from 5-4. This generally only happens two times - when the transmission temperature is below 89 and at or above 165. I've taken it to multiple dealerships, multiple times (13) and had Chrysler involved in the process. They performed all of the above, up to and including replacing the transmission. The issue was NOT resolved and I was informed by the representative that the harsh shift is "normal operation." This issue started at 18k, trans replaced at 33k, and car now has 103k. I eventually quit chasing my tail and decided to live with it. It's not a pleasant trait - but this car still gets me where I need to go. Just trying to save you $150 diagnostic fee for the dealership to say "its normal."
 

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2016 Chrysler 200 S, 1998 Sebring JX
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I used to have a harsh 4-5 shift on a couple of occasions that made me check my rearview mirror. It felt like the car had been rear-ended. I was cresting a hill in a loaded car when this happened.
Even though 70K miles have elapsed since the last transaxle shift concern, you might ask for the diagnostic fee to be waived, as your car has a service history and a replacement gearbox with the same symptoms. Make an appt with the service manager or advisor and bring your repair documentation with you.
If you were getting the same symptoms before and after the replacement 948TE, that indicates to me that this is still likely a software issue.
How many years has it been? The latest and greatest TCM software version for 2015 UF was released on TSB # 21-001-18C at the end of 2018:

The PCM will want the update provided by # 18-083-18, if not already there:

After confirming the new software, reset the PROXI. Mine was already present and looked ok, but the tech reset it by toggling it off, then back on again:

Finally to complete the service, perform the quicklearn:
At this point and after a road test, the car should be ready to be released back to you.

The above info is for the 2015 model year. 2016 used different software/hardware and didn't get the X80 warranty extension:
 
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