Originally Posted by guitar54
I doubt that Jeep will admit to having issues...They do have issues with this transmission. Period.
I did see a new TSB - Anyone try it?
The issue with the transmissions seem to be resolved somewhere mid 2015 production.
At that point it seems that a hardware/software change was made to the transmission.
I know the FCA had several TSBs, most notably the RO1 last year that involved removing 2 on the downshift. The RO1 made a note that the update was for "durability" issues.
The RO1 also had a stress test for the snap ring in the transmission and repositioning of it on a new ring install if needed.
The transmissions produced before the revision with the older software are either functioning well or are problematic. Mostly I would assume due to the AL system (older software) which can cause rough shifting and other abnormalities well past the point of when AL should have been finished. These things particularly rough shifting and jerking will cause wear to the transmission and shorten its life considerably. I would also say that if the vehicle can not attain a smooth shifting pattern via software updates the transmission will most likely need to be replaced.
Now what leads me to believe this is just very recently FCA released a TSB for the transmission that returns 2 on the downshift. This TSB only applies to Cherokees built after 3/2/15
(if I remember correctly). So obviously FCA has resolved the durability issue via a hardware change in the transmission at that point. It is also mentioned in this forum that new hardware/software is in the 2016 transmissions.
So it appears that FCA had the issue figured out with the RO1. The only solution at that point was a software fix on existing Cherokees, removing 2 on the downshift.
As of 3/2/15 produced Cherokee's the new hardware was in the transmissions and new software and/or adjustment of was implemented on this latest TSB that did not apply to pre 3/2/2015 builds.
Mine is one of those, a 12/11/13 build. My transmission is perfect at this point in time. I do not have 2 on the downshift as that was removed on a May 2014 TSB. I do not ever expect to see 2 again because a hardware change would be needed to the transmission to allow it.
Also all updates are VIN specific to your Cherokee. Its not what works for another Cherokee. In my case my Cherokee only has had 1 update that was required.
A transmission that is rough shifting etc. after reasonable attempts to be resolved by the dealer needs to be replaced with a NEW post 3/2/15 transmission with the new hardware/software. This is especially true if the vehicle was built prior to the introduction of that updated transmission, which I assume was around 3/2/15.
Jeep is not going to replace all those pre hardware updated transmissions.
The problematic ones will be replaced under warranty as needed. I am further guessing that they will also be replaced out side of warranty on a case by case basis.
In general I believe jeep will be very proactive in replacing these transmissions if any problems start developing.
Last year my dealer told me that if I notice any change in the operation of the transmission bring it in and they will deal with it.
I have feeling that dealers/FCA will more proactive going forward on this issue. Just work with your dealer to resolve your issue.
Now understand that is my conjecture/opinion on the subject from 2 forums and the TSBs that have been released.