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Within the last two weeks I've experienced a somewhat scary problem with my 2015 2.4 Latitude Automatic (build date 12/14) with approx 47K miles. One was in somewhat cold weather (under 40 deg F) and once in warm weather (70 deg F yesterday). The problem is this: when sitting from a stop there isn't really a delay when stepping on the gas but then there's a lurch forward to the point it feels like I've been rear ended (without the sound of crushed metal and broken plastic of course but prompting a quick look in the rear view mirror nonetheless).



I've been looking at the numerous transmission threads and in a few there are a few mentions of this lurching but it's seems it's part of numerous other transmission issues along with it. So far this is my only issue. I'll be calling the dealer here when they open to get it in but I'm looking to see if anyone has dealt with this issue alone and what fixes were offered.



I noticed some have had software updated and this resolved the problem (I believe mine has the latest) but I can't wrap my head around the fact that somehow software can go "bad" all else being the same and then there are those who had the transmission replaced. I can't believe that it there isn't something mechanical going on to cause this. Coincidentally, I did receive a recall notice with the following items the other day but a check says mine has been repaired S25 Reprogram Powertrain Control Module, S55 Transaxle Range Sensor Wire Harness.


I hope this is covered under warranty; my 3 year 36K is gone but powertrain is longer I think.
 

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Powertrain warranty on the 2015's is 5 years, 100,000 miles. There is a class action lawsuit that is supposed to extend the mileage to 120,000 miles but keep it at 5 years, not sure if it is in effect yet. Good luck at the dealer, keep us posted.
 

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The software is adaptive. It will take average count of how you drive and it will adjust shift points based on your "normal" method of driving. I would try using the manual shift and see if it does the same thing. Shift at 2500 rpm for the first four gears, 2100 rpm after. That's the smoothest point I've found. You'd probably want to try different points to see how it reacts. Of course, I am sure you are knowledgeable. Not trying to tell you what to do; just a minor suggestion to see if it happens manually too.

I have a '15 with the 9 speed. I have owned it for just over two years and have had it reflashed at the dealership once already. I am at 65K and here are the issues I am facing.

I am going to have to have the fluid and filter changed; a typical transmission service. I am also going to, at the same time, have the transmission reflashed again. Start from scratch. Why? In the winter when the transmission is cold, it shifts real bad, lagging between gears something awful. It doesn't even out until it gets up to running temp. I am hoping others can maybe direct me as well.
 

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Discussion Starter #4
Powertrain warranty on the 2015's is 5 years, 100,000 miles. There is a class action lawsuit that is supposed to extend the mileage to 120,000 miles but keep it at 5 years, not sure if it is in effect yet. Good luck at the dealer, keep us posted.

Set to go in on Wed. Funny, when I made the appointment, they were able to confirm I didn't have any outstanding recall issues but not whether the transmission had a 5 year/100,000 warranty.
 

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Within the last two weeks I've experienced a somewhat scary problem with my 2015 2.4 Latitude Automatic (build date 12/14) with approx 47K miles. One was in somewhat cold weather (under 40 deg F) and once in warm weather (70 deg F yesterday). The problem is this: when sitting from a stop there isn't really a delay when stepping on the gas but then there's a lurch forward to the point it feels like I've been rear ended (without the sound of crushed metal and broken plastic of course but prompting a quick look in the rear view mirror nonetheless).



I've been looking at the numerous transmission threads and in a few there are a few mentions of this lurching but it's seems it's part of numerous other transmission issues along with it. So far this is my only issue. I'll be calling the dealer here when they open to get it in but I'm looking to see if anyone has dealt with this issue alone and what fixes were offered.



I noticed some have had software updated and this resolved the problem (I believe mine has the latest) but I can't wrap my head around the fact that somehow software can go "bad" all else being the same and then there are those who had the transmission replaced. I can't believe that it there isn't something mechanical going on to cause this. Coincidentally, I did receive a recall notice with the following items the other day but a check says mine has been repaired S25 Reprogram Powertrain Control Module, S55 Transaxle Range Sensor Wire Harness.


I hope this is covered under warranty; my 3 year 36K is gone but powertrain is longer I think.
Hi Commando,
We certainly understand how concerning this may be. Please let us know how your appointment goes. We're happy to assist with this process as well. Private message is the best way to reach us.
Lydia
Jeep Social Care Specialist
 

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Within the last two weeks I've experienced a somewhat scary problem with my 2015 2.4 Latitude Automatic (build date 12/14) with approx 47K miles. One was in somewhat cold weather (under 40 deg F) and once in warm weather (70 deg F yesterday). The problem is this: when sitting from a stop there isn't really a delay when stepping on the gas but then there's a lurch forward to the point it feels like I've been rear ended (without the sound of crushed metal and broken plastic of course but prompting a quick look in the rear view mirror nonetheless).



I've been looking at the numerous transmission threads and in a few there are a few mentions of this lurching but it's seems it's part of numerous other transmission issues along with it. So far this is my only issue. I'll be calling the dealer here when they open to get it in but I'm looking to see if anyone has dealt with this issue alone and what fixes were offered.



I noticed some have had software updated and this resolved the problem (I believe mine has the latest) but I can't wrap my head around the fact that somehow software can go "bad" all else being the same and then there are those who had the transmission replaced. I can't believe that it there isn't something mechanical going on to cause this. Coincidentally, I did receive a recall notice with the following items the other day but a check says mine has been repaired S25 Reprogram Powertrain Control Module, S55 Transaxle Range Sensor Wire Harness.


I hope this is covered under warranty; my 3 year 36K is gone but powertrain is longer I think.
I want to point out, for those who may not know, that software is partially hardware dependent. Software in the car resides in memory integrated circuits (ICs). A memory IC (an item of hardware) contains many storage cells, one cell per digital bit of storage. Although production controls are rigorous, cells are not perfect or even uniform. Some will deteriorate more than others over time. So one cell or another may change its state: from 0 to 1 or from 1 to 0, over time. This is more likely to happen under extreme conditions: extreme heat or cold temperature, or during periods of unusually low or high voltage, for example. Such events may happen on a "one-off" basis, and be detected first in vehicle operation. The symptom depends on which function the bad bit controls, and may be either dramatic (if a status control), or undetectable in operation (if the bad bit is the least significant bit in a number field, for instance).
 

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Discussion Starter #7
I want to point out, for those who may not know, that software is partially hardware dependent. Software in the car resides in memory integrated circuits (ICs). A memory IC (an item of hardware) contains many storage cells, one cell per digital bit of storage. Although production controls are rigorous, cells are not perfect or even uniform. Some will deteriorate more than others over time. So one cell or another may change its state: from 0 to 1 or from 1 to 0, over time. This is more likely to happen under extreme conditions: extreme heat or cold temperature, or during periods of unusually low or high voltage, for example. Such events may happen on a "one-off" basis, and be detected first in vehicle operation. The symptom depends on which function the bad bit controls, and may be either dramatic (if a status control), or undetectable in operation (if the bad bit is the least significant bit in a number field, for instance).

Good info and just reminds us of the frailty of modern vehicles. All of our previously primarily mechanical systems are now subject to a fragile computer and it's software which more and more, it seems, has trouble performing in the harsh environment that is driving. Makes me long for the "old days"!



Anyway, my vehicle is in the dealership. No word yet on what might be wrong.
 

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I noticed some have had software updated and this resolved the problem (I believe mine has the latest) but I can't wrap my head around the fact that somehow software can go "bad" all else being the same and then there are those who had the transmission replaced. I can't believe that it there isn't something mechanical going on to cause this. Coincidentally, I did receive a recall notice with the following items the other day but a check says mine has been repaired S25 Reprogram Powertrain Control Module, S55 Transaxle Range Sensor Wire Harness.
Software doesn't go bad. It has bugs or it doesn't. When firmware fixes something, it means either they missed generating test cases for all real life interactions of the many systems and algorithms in the vehicle, or that the parts providing input to the software are not what was assumed or in spec, or that assembly or real life operating conditions generate more slop or tighter tolerances/clearances than presumed when originally writing the software.

For example, i got hit with the very early "improbably value" error for the transmission. According to FCA this was due to a sensor producing values outside of the expected range. The two choices were that the sensor was defective, or they developed the code for different behavior than the production sensor actually exhibited. The end result was they updated the software to not be confused by the sensor output values, and everything works normally.

Another example was that I would sometimes get a cold start lurch where from a cold start, I'd apply throttle, get very little forward motion, and then SLAM things would engage in a neck snapping way. This was an example of the software logic being a poor fit with reality under specific circumstances. This would not happen if you backed out of your parking spot in the morning, because whatever was going on was done by the time you shifted into a forward gear. This wouldn't happen if you parked at the curb and took off like you stole it, because in that situation more than likely a different algorithm or strategy was chosen for the throttle, transmission, or AWD system, and you didn't get the convergence of behavior that cause the problem.

However if it was cool out, you parked curbside or otherwise went immediately into forward motion with moderate acceleration and staying below 30 mph, the vehicle would pull throttle input temporarily, you would likely try to give it more gas which did nothing, then it would stop pulling throttle and suddenly you are giving it the beans (or at least it's finally responding to you doing so) right when it's decided to lock up the dog clutches in the AWD system or in the middle of a shift expecting the throttle value to not change mid shift. Not sure which. But the result as someone who has to park curb side a lot was that fall and winter, I'd have a 50-50 chance of the thing being really sluggish and then WHAM!

Once they updated the software to avoid that as much as possible, it went from an every other morning problem or more. To a couple times each winter. Likely because they can't tweak one subsystem's behavior enough without negatively impacting a strategy that prevents significant wear, or because pushing changes to exclude the possibility entirely means they could be impacting the projected emissions of the vehicle in a way that could get them in trouble.

There was a VERY nice version of the firmware that shifted really well and got decent gas mileage. I miss it. I suspect it impacted emissions though as it went away with the first firmware update after FCA started being investigated for emissions tampering in software.

I suspect the 30mph groan is an example of the software can't cope with hardware tolerances as delivered. At least if you believe the one forum user form Italy that says they were able to fix his problem, but it required FCA engineers to come out and essentially drop a custom firmware on the vehicle with calibrated behavior in unlocking the clutch in the rear drive unit. The groan doesn't happen in 4wd mode because it forces it locked. IT doesn't happen in really cold weather for a lot of people because that changes the AWD engagement algorithm to using a different strategy for when and how it engages AWD. It doesn't happen over ~4xmph because around 50mph the AWD is forced to be disengaged for highway fuel economy. It doesn't happen when you disable traction control likely because they are doing something with prepping the wet clutch so that it can cope with wheel slip faster with TC on. But they likely can't ride that line without issues due to variation between units without either getting so lax TC doesn't work right, or going with the more aggressive cold weather algorithm, which would likley lower fuel economy and mean they were changing something their EPA emissions estimates were based on, and that last bit is a no-no.
 

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Discussion Starter #9
Update-Another Transmission Issue

Within the last two weeks I've experienced a somewhat scary problem with my 2015 2.4 Latitude Automatic (build date 12/14) with approx 47K miles. One was in somewhat cold weather (under 40 deg F) and once in warm weather (70 deg F yesterday). The problem is this: when sitting from a stop there isn't really a delay when stepping on the gas but then there's a lurch forward to the point it feels like I've been rear ended (without the sound of crushed metal and broken plastic of course but prompting a quick look in the rear view mirror nonetheless).



I've been looking at the numerous transmission threads and in a few there are a few mentions of this lurching but it's seems it's part of numerous other transmission issues along with it. So far this is my only issue. I'll be calling the dealer here when they open to get it in but I'm looking to see if anyone has dealt with this issue alone and what fixes were offered.



I noticed some have had software updated and this resolved the problem (I believe mine has the latest) but I can't wrap my head around the fact that somehow software can go "bad" all else being the same and then there are those who had the transmission replaced. I can't believe that it there isn't something mechanical going on to cause this. Coincidentally, I did receive a recall notice with the following items the other day but a check says mine has been repaired S25 Reprogram Powertrain Control Module, S55 Transaxle Range Sensor Wire Harness.


I hope this is covered under warranty; my 3 year 36K is gone but powertrain is longer I think.

I got my Renegade back yesterday and repair consisted of a software flash. The line item is as follow:


"Scanned for DTC's none present, looked for available software updates and TSB's has TSB 21-003-18 lists his concern as fixable with software, PCM and TCM are both out of date, need to be done at same time 18-19-06-UE 0.2 hr 18-19-05GX 0.2 hr flash programmed PCM and TCM to latest software level per TSB 21-003-18"


This was covered under warranty for which I'm grateful. It does make me wonder though, has anyone had software updates that were not covered under some sort of warranty? I suspect most owners on this forum still have warranty coverage but as these run out what kind of charges can we expect to see in the future should a "fix" require a software update. Mine has 47K on it now and if it needed a software fix with these miles, I'm sure it may again.


As for how it drives now, it does "feel" different . Hard to explain but shifts seem more immediate. Since my problem was so random, I don't know if this fixed it or not; only time will tell. I did notice that on the ride home I take a highway with a 65mph limit. Where my Renegade would usually get to 9th gear, yesterday it never made it out of 8th. There may have been a head wind so will monitor but am certain the shift points have been changed or TCM/PCM is re-learning.



I did a quick search of TSB 21-003-18 but did not find much so if anyone has any detailed info to share that would be most appreciated.
 

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My 2017 Rene Trailhawk with 13K miles was just left at the dealership with this same issue. It started three weeks ago. It only happens when I am at a stop position and barely pressing the gas. It's a hard jerk around the time the transmission is going from 2nd to 3rd gear. Then it goes away.
 

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My 2017 Rene Trailhawk with 13K miles was just left at the dealership with this same issue. It started three weeks ago. It only happens when I am at a stop position and barely pressing the gas. It's a hard jerk around the time the transmission is going from 2nd to 3rd gear. Then it goes away.
Hi elo2013,
We're sorry to hear this. Please send us a private message if you need any additional assistance while your Jeep is at the dealership. We're happy to help!
Lydia
Jeep Social Care Specialist
 

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This was covered under warranty for which I'm grateful. It does make me wonder though, has anyone had software updates that were not covered under some sort of warranty? I suspect most owners on this forum still have warranty coverage but as these run out what kind of charges can we expect to see in the future should a "fix" require a software update. Mine has 47K on it now and if it needed a software fix with these miles, I'm sure it may again.
I have never been charged for a firmware update on anything. That being said, I've never had an issue where the firmware was the only thing needing attention and it was out of warranty.

I'm guessing the software counts as part of the onboard diagnostic computers, and would be covered under the federal emission warranty specific items warranty, which is 8 years or 80,000 miles.

My dealer just plugs int he wireless dongle for every vehicle coming in for any type of service and updates vehicles as part or whatever service you are getting.
 

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Discussion Starter #13
I started another thread just to see (https://www.jeeprenegadeforum.com/forum/4-jeep-renegade-general-discussion/101603-questions-about-renegade-service.html) what other have experienced and how equipped non-dealer shops are to handle these issues and what the cost might be. I'd hate the thought of forever being tied to only the dealership. Two out of my 3 visits (under warranty) were firmware updates.



It kind of reminds me of using Windows; being interrupted with "Please wait while Windows updates your computer". The only difference is the the software causing the problem is controlling a moving vehicle. Jeep Renegade Windows Edition.


I really do like my Jeep and hope I can hold on to it for a long time I'm just concerned that maybe mechanically it's solid but how often will there be a problem with the brains. Eventually it's going to cost money and you won't be able to go to RockAuto for the latest update.
 

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Software doesn't go bad. It has bugs or it doesn't. When firmware fixes something, it means either they missed generating test cases for all real life interactions of the many systems and algorithms in the vehicle, or that the parts providing input to the software are not what was assumed or in spec, or that assembly or real life operating conditions generate more slop or tighter tolerances/clearances than presumed when originally writing the software.

For example, i got hit with the very early "improbably value" error for the transmission. According to FCA this was due to a sensor producing values outside of the expected range. The two choices were that the sensor was defective, or they developed the code for different behavior than the production sensor actually exhibited. The end result was they updated the software to not be confused by the sensor output values, and everything works normally.

Another example was that I would sometimes get a cold start lurch where from a cold start, I'd apply throttle, get very little forward motion, and then SLAM things would engage in a neck snapping way. This was an example of the software logic being a poor fit with reality under specific circumstances. This would not happen if you backed out of your parking spot in the morning, because whatever was going on was done by the time you shifted into a forward gear. This wouldn't happen if you parked at the curb and took off like you stole it, because in that situation more than likely a different algorithm or strategy was chosen for the throttle, transmission, or AWD system, and you didn't get the convergence of behavior that cause the problem.

However if it was cool out, you parked curbside or otherwise went immediately into forward motion with moderate acceleration and staying below 30 mph, the vehicle would pull throttle input temporarily, you would likely try to give it more gas which did nothing, then it would stop pulling throttle and suddenly you are giving it the beans (or at least it's finally responding to you doing so) right when it's decided to lock up the dog clutches in the AWD system or in the middle of a shift expecting the throttle value to not change mid shift. Not sure which. But the result as someone who has to park curb side a lot was that fall and winter, I'd have a 50-50 chance of the thing being really sluggish and then WHAM!

Once they updated the software to avoid that as much as possible, it went from an every other morning problem or more. To a couple times each winter. Likely because they can't tweak one subsystem's behavior enough without negatively impacting a strategy that prevents significant wear, or because pushing changes to exclude the possibility entirely means they could be impacting the projected emissions of the vehicle in a way that could get them in trouble.

There was a VERY nice version of the firmware that shifted really well and got decent gas mileage. I miss it. I suspect it impacted emissions though as it went away with the first firmware update after FCA started being investigated for emissions tampering in software.

I suspect the 30mph groan is an example of the software can't cope with hardware tolerances as delivered. At least if you believe the one forum user form Italy that says they were able to fix his problem, but it required FCA engineers to come out and essentially drop a custom firmware on the vehicle with calibrated behavior in unlocking the clutch in the rear drive unit. The groan doesn't happen in 4wd mode because it forces it locked. IT doesn't happen in really cold weather for a lot of people because that changes the AWD engagement algorithm to using a different strategy for when and how it engages AWD. It doesn't happen over ~4xmph because around 50mph the AWD is forced to be disengaged for highway fuel economy. It doesn't happen when you disable traction control likely because they are doing something with prepping the wet clutch so that it can cope with wheel slip faster with TC on. But they likely can't ride that line without issues due to variation between units without either getting so lax TC doesn't work right, or going with the more aggressive cold weather algorithm, which would likley lower fuel economy and mean they were changing something their EPA emissions estimates were based on, and that last bit is a no-no.
wow.....that's a lot to take in....but it rings of truth having owned 5 fca vehicles in the last decade.....I have had a few of those exact things happen...very impressed ...so why don't you write code for fca or some facet of engineering...I would think that they would accept you with open arms.....thanks for the write-up..
 

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I want to point out, for those who may not know, that software is partially hardware dependent. Software in the car resides in memory integrated circuits (ICs). A memory IC (an item of hardware) contains many storage cells, one cell per digital bit of storage. Although production controls are rigorous, cells are not perfect or even uniform. Some will deteriorate more than others over time. So one cell or another may change its state: from 0 to 1 or from 1 to 0, over time. This is more likely to happen under extreme conditions: extreme heat or cold temperature, or during periods of unusually low or high voltage, for example. Such events may happen on a "one-off" basis, and be detected first in vehicle operation. The symptom depends on which function the bad bit controls, and may be either dramatic (if a status control), or undetectable in operation (if the bad bit is the least significant bit in a number field, for instance).
wow you and raz-o ….could be...well renegade gurus seems to small for you guys...but we sure enjoy the passion you guys have....thanks
 

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I have a new 2018 2.4 with 1075 miles now on it and at first, was most concerned about the transmission issues. I do note that the complaints seem to lessen for each model year toward present. I do dislike that hesitation it has when first taking off or passing, like it is thinking about what to do but with the learning algorithm, the transmission has adapted/improved that start ab it and improved from my perception overall and knowing the "quirks" of the tranny the human adapts. I am NOT noticing the herky jerky issues others talk about or any of the other safety or other issues either.

Of note, is that I drive national forest roads and county dirt roads quite often to go to interesting places here in MT. The auto sucks for air there but Sand is grand. One, the Renegade is great on washboard once you find the sweet spot on speed. Sand mode is very aggressive from the standpoint of how the transmission works. It is immediate when you step on the gas, so i KNOW that is an intentional setting. Sand mode keeps the tranny in the powerband of the engine at all times and you can really go AND you get great seemingly intuitive engine braking coming down in that mode without manual downshift whereas in auto, the darn thing seems to ignore downshifts, increasing speed with the only change being the tranny screaming.

The suspension is a very pleasant surprise and the best I've ever seen on a small vehicle. It is a little log wagon compared to the cushy competition, but it is tight as a drum. I'd like to see someone compare a Honda CR or HRV, a Hyandai Kona or Rav 4 against the Renegade going up to Park Lake here just outside of Helena. They would then bow down. That is the kind of road these were designed for I'm thinking. I have driven an older Subaru Forester up that road and it is a totally different experience. And the transmission in Sand mode is key to this. I think the big problem is FCA's NEED to meet CAFE standards, not the transmission itself. I'm also thinking that the early ones might be a bit different internally and some hardware as it mates with software areas have been improved.
 

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I have a new 2018 2.4 with 1075 miles now on it and at first, was most concerned about the transmission issues. I do note that the complaints seem to lessen for each model year toward present. I do dislike that hesitation it has when first taking off or passing, like it is thinking about what to do but with the learning algorithm, the transmission has adapted/improved that start ab it and improved from my perception overall and knowing the "quirks" of the tranny the human adapts. I am NOT noticing the herky jerky issues others talk about or any of the other safety or other issues either.

Of note, is that I drive national forest roads and county dirt roads quite often to go to interesting places here in MT. The auto sucks for air there but Sand is grand. One, the Renegade is great on washboard once you find the sweet spot on speed. Sand mode is very aggressive from the standpoint of how the transmission works. It is immediate when you step on the gas, so i KNOW that is an intentional setting. Sand mode keeps the tranny in the powerband of the engine at all times and you can really go AND you get great seemingly intuitive engine braking coming down in that mode without manual downshift whereas in auto, the darn thing seems to ignore downshifts, increasing speed with the only change being the tranny screaming.

The suspension is a very pleasant surprise and the best I've ever seen on a small vehicle. It is a little log wagon compared to the cushy competition, but it is tight as a drum. I'd like to see someone compare a Honda CR or HRV, a Hyandai Kona or Rav 4 against the Renegade going up to Park Lake here just outside of Helena. They would then bow down. That is the kind of road these were designed for I'm thinking. I have driven an older Subaru Forester up that road and it is a totally different experience. And the transmission in Sand mode is key to this. I think the big problem is FCA's NEED to meet CAFE standards, not the transmission itself. I'm also thinking that the early ones might be a bit different internally and some hardware as it mates with software areas have been improved.
Hey Karl...good write up...can I use sand mode on pavement or just dirt roads...thanks
 

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Within the last two weeks I've experienced a somewhat scary problem with my 2015 2.4 Latitude Automatic (build date 12/14) with approx 47K miles. One was in somewhat cold weather (under 40 deg F) and once in warm weather (70 deg F yesterday). The problem is this: when sitting from a stop there isn't really a delay when stepping on the gas but then there's a lurch forward to the point it feels like I've been rear ended (without the sound of crushed metal and broken plastic of course but prompting a quick look in the rear view mirror nonetheless).



I've been looking at the numerous transmission threads and in a few there are a few mentions of this lurching but it's seems it's part of numerous other transmission issues along with it. So far this is my only issue. I'll be calling the dealer here when they open to get it in but I'm looking to see if anyone has dealt with this issue alone and what fixes were offered.



I noticed some have had software updated and this resolved the problem (I believe mine has the latest) but I can't wrap my head around the fact that somehow software can go "bad" all else being the same and then there are those who had the transmission replaced. I can't believe that it there isn't something mechanical going on to cause this. Coincidentally, I did receive a recall notice with the following items the other day but a check says mine has been repaired S25 Reprogram Powertrain Control Module, S55 Transaxle Range Sensor Wire Harness.


I hope this is covered under warranty; my 3 year 36K is gone but powertrain is longer I think.
I've had this problem since I bought my renege at 36,000 miles (currently at 44k). It's been to the dealer 4 times, and each time they've "found a solution", only one of which only one was covered under warranty. They replaced the transmission finally last week. It's worse now than it was before.
I need to take it to another dealer, but I just hate being without a vehicle, especially with 4 kids on summer break.
I really WANT to love the car, but it's getting more difficult by the day.
 

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My 2017 Rene Trailhawk with 13K miles was just left at the dealership with this same issue. It started three weeks ago. It only happens when I am at a stop position and barely pressing the gas. It's a hard jerk around the time the transmission is going from 2nd to 3rd gear. Then it goes away.
That's EXACTLY how mine is.
I've paid for a bunch of "repairs", none of which helped. They replaced the transmission last week under the power train warranty and honestly, it's worse than it was before.
I'm kinda stuck.
I just bought the car in Feb, with only 36,000 miles. The dealer has had it over 10 days total. So I have a new car, can't ever drive it, need to find backup transportation, AND it still doesn't work right. 😭
I really want to love this car. I need to love this car for at least the next 5 years till it's paid off I guess, no one is going to buy it with the way it hesitates like this.
 

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It surprises me that you people say you're having transmission problems and then describe behavior that is completely normal for this transmission. It is not a traditional torque converter automatic. It is a torque converter automatic with two dog clutches. I may be wrong, but I understand the first clutch engages with first gear, and the second clutch between 4th and 5th (or 3rd and 4th?)

This means that when taking off from first gear it will act like a manual transmission and will have that lurch forward that you describe and a delay between 4th and 5th. It is a normal characteristic of this transmission and does not indicate an issue. A software update could help smoothen it out a bit, but so far it seems that a software problem has not been a universal fix. As I have read above, one of you had a new transmission and that also did not solve it. The only way to solve it is to remove the clutches and convert this to a normal torque converter automatic.

If you've ever driven a Dual Clutch Transmission (which works different to what I have described above), you would also notice the lurch when taking off from first gear. My mom's Mini with the DCT also has it. Automatized manual transmissions, such as the Duoselect in the 2005 Maserati Quattroporte, the F1 transmissions in mid 2000s Ferraris, and the SMG in the V10 M5 also has this characteristic, and in these cars I mention, it is even more pronounced than on the Jeep.

As long as you don't have grinding, groans, or whines from the transmission, and it isn't slipping, then your transmission is fine and operating as it should.
 
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