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FRSBRZGT86FAN · 10-22-2015, 08:48 PM

I just was curious to see who if all have this issue as described in these threads:
http://www.ft86club.com/forums/showthread.php?t=80500
http://www.ft86club.com/forums/showthread.php?t=79886
http://www.ft86club.com/forums/showthread.php?t=88758

The issue occurs at around 0:14 in this video:
Sorry Guys video was deleted by me by accident awhile back I had a long hiatus away from the forums and didn't realize it was for this whoops!

Essentially, downshifting in manual mode does not rev match at times, and up-shifts become harsh, also in drive the shifting becomes rough as well, the issue disappears when restarting the car, it also does not appear if the car has been started and driven only in manual mode.

It seems a lot of people are having this issue, just wanted to know how widespread it is and like other issues if this TSB has fixed it: S-SB-0021-15
as that is the only recent TSB that effects our AT transmissions in any way. (subaru TSBs 16-96-15 which seems really similar:TCM Reprogramming File Availability for Engine Idle RPM Fluctuation on 6AT- Equipped Models)

EDIT AS OF 1/3/2016:

ISSUES ARE FIXED!!!! The TSB here S-SB-0021-15 can pretty much be confirmed to fix the issues that occurs after using drive for a period of time or after cruise control use including: failing to rev match, weird idle, late shifts and lurching in drive.

FOR SUBARU BR-Zs:
It is TSB #16-96-15

TCM Reprogramming File Availability for Engine Idle RPM Fluctuation on 6AT- Equipped Models

This bulletin announces availability of reprogramming files for optimizing the Transmission Control Module (TCM) on all 2015 and some early-production 2016MY vehicles to control an engine idle speed fluctuation condition when in Park or Neutral. The cause is incorrect operation of a back-up program the TCM uses in the event of a turbine speed sensor problem. Affected vehicles may see a fluctuation of approximately 200 rpm (between 600 – 800 rpm idle speed).

Here is a list of owners that had the new TCM logic flash as per the TSB instructions and no longer have transmission issues:
1. aa_chow
2. Mini&aVette
3. soulreapersteve
4. MidwestFRS
5. FRSBRZGT86FAN
6. V_86
7. MechEGR
8 DashRipRock
9.Cole
10.KalbiCool88
11.Hoggensteen
12.inio
13.punisherfan
14.euthqt
15.KalbiCool88
16.Simplisticx3

Also noticed after the re-flash was that shifts in manual mode are increasingly snappier and in drive are noticeably smoother. Bottom line is if you have AT and a 2015-2016 experiencing issues that have been mentioned print out the TSB, take it to the dealer requesting it be done regardless of VIN, if you have a 2013 or 2014 you can try to get them to do it no guarantees as to what they will say however.

10-22-2015, 08:48 PM	#1
FRSBRZGT86FAN Senior Member Join Date: Jun 2013 Drives: 2023 GR SUPRA,15 FR-S (SOLD) Location: Philadelphia, PA Posts: 4,235 Thanks: 3,086 Thanked 2,100 Times in 1,397 Posts Mentioned: 31 Post(s) Tagged: 2 Thread(s)	AT Hard Shifting issues Poll I just was curious to see who if all have this issue as described in these threads: http://www.ft86club.com/forums/showthread.php?t=80500 http://www.ft86club.com/forums/showthread.php?t=79886 http://www.ft86club.com/forums/showthread.php?t=88758 The issue occurs at around 0:14 in this video: Sorry Guys video was deleted by me by accident awhile back I had a long hiatus away from the forums and didn't realize it was for this whoops! Essentially, downshifting in manual mode does not rev match at times, and up-shifts become harsh, also in drive the shifting becomes rough as well, the issue disappears when restarting the car, it also does not appear if the car has been started and driven only in manual mode. It seems a lot of people are having this issue, just wanted to know how widespread it is and like other issues if this TSB has fixed it: S-SB-0021-15 as that is the only recent TSB that effects our AT transmissions in any way. (subaru TSBs 16-96-15 which seems really similar:TCM Reprogramming File Availability for Engine Idle RPM Fluctuation on 6AT- Equipped Models) EDIT AS OF 1/3/2016: ISSUES ARE FIXED!!!! The TSB here S-SB-0021-15 can pretty much be confirmed to fix the issues that occurs after using drive for a period of time or after cruise control use including: failing to rev match, weird idle, late shifts and lurching in drive. FOR SUBARU BR-Zs: It is TSB #16-96-15 TCM Reprogramming File Availability for Engine Idle RPM Fluctuation on 6AT- Equipped Models This bulletin announces availability of reprogramming files for optimizing the Transmission Control Module (TCM) on all 2015 and some early-production 2016MY vehicles to control an engine idle speed fluctuation condition when in Park or Neutral. The cause is incorrect operation of a back-up program the TCM uses in the event of a turbine speed sensor problem. Affected vehicles may see a fluctuation of approximately 200 rpm (between 600 – 800 rpm idle speed). Here is a list of owners that had the new TCM logic flash as per the TSB instructions and no longer have transmission issues: 1. aa_chow 2. Mini&aVette 3. soulreapersteve 4. MidwestFRS 5. FRSBRZGT86FAN 6. V_86 7. MechEGR 8 DashRipRock 9.Cole 10.KalbiCool88 11.Hoggensteen 12.inio 13.punisherfan 14.euthqt 15.KalbiCool88 16.Simplisticx3 Also noticed after the re-flash was that shifts in manual mode are increasingly snappier and in drive are noticeably smoother. Bottom line is if you have AT and a 2015-2016 experiencing issues that have been mentioned print out the TSB, take it to the dealer requesting it be done regardless of VIN, if you have a 2013 or 2014 you can try to get them to do it no guarantees as to what they will say however. __________________ SOLDOFT Stage 2 UEL E85/Nameless Performance 3 inch axleback with 5 inch mufflers/ TRD CAI / CNT UEL/ Cusco Strut BAR & LHD Brake Stop / "JDM" Toyota Badges / WinJet JDM headlights - DRL MOD from fteightysix.com - 5000K Diode Dynamics HID kit / Diode Dynamics LED interior Lights and sidemarker bulbs / JDM Clear Sidemarkers / Diode Dynamics LED switchbacks/ OLM LED rear turn signals / Tap Turn RelaySOLD Last edited by FRSBRZGT86FAN; 01-28-2018 at 12:08 AM.