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+ Paddle = Downshift... Solved? :/

14792 Views 46 Replies 14 Participants Last post by  Rockster
I wanted to post this to this forum because this is the only forum i have seen anyone talk about this.

I have a 2018 392 Daytona Charger, and sometimes when i go to up shift with the paddle the car will downshift instead.

I took my car to one dealership and after looking at it for 3 days the service guys told me that the up-shift is on the right and the down-shift is on the left and they couldn't find anything wrong with it.

Today i took my car to another Dealership to have it looked at. The mechanic told me, that after researching the problem, it is a standard problem on 392's and hellcats. He said if you up shift, to quick the car will interpret the up-shift as a down-shift because the voltage from the up shift is not high enough to register as an up-shift. And that it is recommended to hold the paddle for more then 1 second. There is no fix for this because it is driver error by not holding the paddle shiftier for more then 1 second.

I just wanted to post this for anyone who has this problem. Its not a fix but at least you can know what "Dodge" says about the problem.
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I wanted to post this to this forum because this is the only forum i have seen anyone talk about this.

I have a 392 Daytona Charger, and sometimes when i go to up shift with the paddle the car will downshift instead.

I took my car to one dealership and after looking at it for 3 days the service guys told me that the up-shift is on the right and the down-shift is on the left and they couldn't find anything wrong with it.

Today i took my car to another Dealership to have it looked at. The mechanic told me, that after researching the problem, it is a standard problem on 392's and hellcats. He said if you up shift, to quick the car will interpret the up-shift as a down-shift because the voltage from the up shift is not high enough to register as an up-shift. And that it is recommended to hold the paddle for more then 1 second. There is no fix for this because it is driver error by not holding the paddle shiftier for more then 1 second.

I just wanted to post this for anyone who has this problem. Its not a fix but at least you can know what "Dodge" says about the problem.


Welcome to the forums... :)

With your interaction with this Mechanic, did you get the sense that this was what Dodge told him, or might it be the case that he fed you the line to fill in a lack of solution?
With your interaction with this Mechanic, did you get the sense that this was what Dodge told him, or might it be the case that he fed you the line to fill in a lack of solution?
Okay, so going into more detail about my time there; when i first got there i told the guy at the service desk what my issue was, then the mechanic came out to the service desk, and me and him went on a test drive so i could show him what was happening. Then I made an appointment to bring my car back on Thursday. About 20 or 30 minutes later the guy called and basically read a post straight from his computer to me, about what dodge posted about this issue. Then he paraphrased it, (that's what i posted above) after that he said, "well that is what dodge says so there isn't anything i can do, so i will cancel your Thursday appointment."

I think this is more a Lack of solution on Dodge's part and they dont have a fix, so this is what they say.
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Okay, so going into more detail about my time there; when i first got there i told the guy at the service desk what my issue was, then the mechanic came out to the service desk, and me and him went on a test drive so i could show him what was happening. Then I made an appointment to bring my car back on Thursday. About 20 or 30 minutes later the guy called and basically read a post straight from his computer to me, about what dodge posted about this issue. Then he paraphrased it, (that's what i posted above) after that he said, "well that is what dodge says so there isn't anything i can do, so i will cancel your Thursday appointment."

I think this is more a Lack of solution on Dodge's part and they dont have a fix, so this is what they say.

Thank you for the answer, after I posted my question, I was thinking I didn't make myself very clear, but you answered exactly what I was asking for.

;)
Holding the paddle shifter for longer than a second will just make the car go into the highest possible gear for the speed you are going. The issue he described seems to be correct though. It is sending the wrong signal at times, and it seems to happen more when you lightly tap the bottom of the paddle shifter. Seems like more of an issue of terrible contact somewhere.
Holding the paddle shifter for longer than a second will just make the car go into the highest possible gear for the speed you are going. The issue he described seems to be correct though. It is sending the wrong signal at times, and it seems to happen more when you lightly tap the bottom of the paddle shifter. Seems like more of an issue of terrible contact somewhere.
Yes, i 100% agree! but i'm not sure if/how to argue this point or if there is anything i can do to get a proper fix
Yes, i 100% agree! but i'm not sure if/how to argue this point or if there is anything i can do to get a proper fix
Someone is going to have to go to them with actual evidence, a way to duplicate the issue nearly at will, or FCA is going to need to do what they have to and look into the issue themselves.

I was one of the people early on to have the issue on my 15 392, and it was definitely annoying to deal with. My 16 HC has done it maybe 3 times.
Thought I read somewhere replacing the paddles solved it. I'll have to find it.
Thought I read somewhere replacing the paddles solved it. I'll have to find it.
Is this the post you where talking about?

https://www.hellcat.org/threads/paddle-shift-issue-paddle-does-downshifts-randomly.218555/

Edit: I spoke with the dealership about getting the paddle shifter replaced and they said,”the bulletin on this issue says do not replace parts. so you cannot get the replaced under warranty.”
Wow that sucks, i didnt know this was a common issue. Good luck and hopefully someone finds a work around.
I wanted to post this to this forum because this is the only forum i have seen anyone talk about this.

I have a 2018 392 Daytona Charger, and sometimes when i go to up shift with the paddle the car will downshift instead.

I took my car to one dealership and after looking at it for 3 days the service guys told me that the up-shift is on the right and the down-shift is on the left and they couldn't find anything wrong with it.

Today i took my car to another Dealership to have it looked at. The mechanic told me, that after researching the problem, it is a standard problem on 392's and hellcats. He said if you up shift, to quick the car will interpret the up-shift as a down-shift because the voltage from the up shift is not high enough to register as an up-shift. And that it is recommended to hold the paddle for more then 1 second. There is no fix for this because it is driver error by not holding the paddle shiftier for more then 1 second.

I just wanted to post this for anyone who has this problem. Its not a fix but at least you can know what "Dodge" says about the problem.
What Dodge has said about this at least what has been posted on this thread is in my humble opinion nonsense. How the paddle is operated has no bearing on the behavior. And frankly with some additional thought on this if it did that would be at least as troubling to me as the real cause. If Dodge can't produce paddle shifters that don't get confused by how they are operated it ought to get out of the car business.

My 2018 Hellcat has been manifesting this +paddle causing a downshift now for some months.

I have not yet spoken to a dealer service department about this I wanted to read of others experiences first. I wanted to avoid the "they all do that", "unable to reproduce the behavior" and so on phases.

But the problem is to the point I can't use the +paddle shifter for a shift at anything above a fast idle for fear if I shift at a higher RPM the spurious downshift would cause an engine over speed event or upset the car and cause a loss of control.

This loss of control is a real concern. More than once I've had the down shift occur during a turn when intending to go from 2nd to 3rd the transmission instead shifts back to 1st gear. This occurred on dry pavement. But my Hellcat is driven in rain or shine and if a down shift occurred the rear tires could break loose and cause a loss of vehicle control.

I won't bore you with the details but I tried various things to see if I could affect this behavior. No matter how I work the paddle no matter if the wheel is straight ahead and steady or turned or being turned plays a role. The behavior occurs at random times regardless of whether the engine and transmission are cold, warm, or fully up to temperature.

What I have done is on a highway with the transmission lever in the manual shift position to up shift then down shift then up shift again say going from 7th to 8th then back to 7th again and repeating this -- the engine RPMs change very little -- and maybe once in 10 or 12 times pulling the +paddle causes the transmission to shift to 6th rather than shift up to 8th.

Less common but I think related is once in a while an otherwise legitimate shift is ignored and it is not ignored because the shift was attempted at too low an RPM.

The behavior is not related to how I work the paddle and I repeat the letter from FCA on this is nonsense. It is what is offered when the factory has no clue and is trying to brush off the problem but at the same time possibly buy some time to figure out what is going on and what to do about it.

My analysis is the problem is a shift signal from the +paddle can apparently be mistaken for a down shift signal. This suggest the shift signal enters the engine/transmission controller on the same input pin and it is a voltage level that is used to distinguish between an up shift or down shift.

For some reason the +paddle once in awhile and for reasons unknown generates a voltage signal that appears to be a down shift signal. Or the signal is in some no man's land between an up shift and down shift -- or no signal is even generated -- and the signal is ignored.

That the -paddle shifter does not (at least so far) result in an occasional upshift suggests the error can only be in one direction. It also clearly makes the claim by FCA that how the paddle is operated is the problem highly suspect to be kind, though calling it nonsense earlier suggests my "kindness" is too little too late...

What I did do is report this via Dodge Customer Care. I submitted a report 4/24. I received a reply the next day that among other things my report had been escalated "to the Case Management team".

I was supplied with a case number.

Then yesterday I received another email this time from the case manager assigned to my case. Among other things she indicated she would be in touch by phone. Given it is barely 24 hours since the email that I have not been contacted yet is not that upsetting.

More when I know more.
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What Dodge has said about this at least what has been posted on this thread is in my humble opinion nonsense. How the paddle is operated has no bearing on the behavior. And frankly with some additional thought on this if it did that would be at least as troubling to me as the real cause. If Dodge can't produce paddle shifters that don't get confused by how they are operated it ought to get out of the car business.

My 2018 Hellcat has been manifesting this +paddle causing a downshift now for some months.

I have not yet spoken to a dealer service department about this I wanted to read of others experiences first. I wanted to avoid the "they all do that", "unable to reproduce the behavior" and so on phases.

But the problem is to the point I can't use the +paddle shifter for a shift at anything above a fast idle for fear if I shift at a higher RPM the spurious downshift would cause an engine over speed event or upset the car and cause a loss of control.

This loss of control is a real concern. More than once I've had the down shift occur during a turn when intending to go from 2nd to 3rd the transmission instead shifts back to 1st gear. This occurred on dry pavement. But my Hellcat is driven in rain or shine and if a down shift occurred the rear tires could break loose and cause a loss of vehicle control.

I won't bore you with the details but I tried various things to see if I could affect this behavior. No matter how I work the paddle no matter if the wheel is straight ahead and steady or turned or being turned plays a role. The behavior occurs at random times regardless of whether the engine and transmission are cold, warm, or fully up to temperature.

What I have done is on a highway with the transmission lever in the manual shift position to up shift then down shift then up shift again say going from 7th to 8th then back to 7th again and repeating this -- the engine RPMs change very little -- and maybe once in 10 or 12 times pulling the +paddle causes the transmission to shift to 6th rather than shift up to 8th.

Less common but I think related is once in a while an otherwise legitimate shift is ignored and it is not ignored because the shift was attempted at too low an RPM.

The behavior is not related to how I work the paddle and I repeat the letter from FCA on this is nonsense. It is what is offered when the factory has no clue and is trying to brush off the problem but at the same time possibly buy some time to figure out what is going on and what to do about it.

My analysis is the problem is a shift signal from the +paddle can apparently be mistaken for a down shift signal. This suggest the shift signal enters the engine/transmission controller on the same input pin and it is a voltage level that is used to distinguish between an up shift or down shift.

For some reason the +paddle once in awhile and for reasons unknown generates a voltage signal that appears to be a down shift signal. Or the signal is in some no man's land between an up shift and down shift -- or no signal is even generated -- and the signal is ignored.

That the -paddle shifter does not (at least so far) result in an occasional upshift suggests the error can only be in one direction. It also clearly makes the claim by FCA that how the paddle is operated is the problem highly suspect to be kind, though calling it nonsense earlier suggests my "kindness" is too little too late...

What I did do is report this via Dodge Customer Care. I submitted a report 4/24. I received a reply the next day that among other things my report had been escalated "to the Case Management team".

I was supplied with a case number.

Then yesterday I received another email this time from the case manager assigned to my case. Among other things she indicated she would be in touch by phone. Given it is barely 24 hours since the email that I have not been contacted yet is not that upsetting.

More when I know more.
Keep me updated on this, i am paying out of pocket to have the +paddle shiftier replaced on my car today because they wont do it under warranty.
Sounds like this should of been a safety recall. Mine has done it a few times and I no longer use the paddle shifters.
Never had this issue on my Demon or Charger 392.........
Keep me updated on this, i am paying out of pocket to have the +paddle shiftier replaced on my car today because they wont do it under warranty.
That's BS. I would not agree to that. I would tell the dealer if it and Dodge can't come up with a solution that you will report this to the NHTSA as a safety issue.

This is my fall back if Dodge is unable to resolve this to my satisfaction. Either that or Dodge takes the car back.

I got a call from my case rep yesterday. She's going to arrange to have the car in to a dealer service department to confirm the behavior.

A problem with this is the other day I drove the car and used the +paddle shifter a lot and to my surprise the spurious down shift only occurred once. There was just one ignored up shift, too.

At first I thought the car might have received some over the air update to the engine/transmission controller but the appearance of the one spurious down shift -- very near my destination too -- tells me the problem is still present.

The only thing I can think of that might account for the symptom being not showing up as often the other day as is the weather here has turned "cold". There does appear to be some relationship to the how often the behavior occurs and ambient temperature.

Anyhow, I'm going to drive the car today and use the +paddle shifter a lot.
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I'm calling BS on this answer - 1 sec. is an eternity when it comes to electronics !!
Besides, it defeats the entire concept of the paddle shifters which are suppose to respond to a 'flick' of the paddle, not a press & hold :mad:
I'm calling BS on this answer - 1 sec. is an eternity when it comes to electronics !!
Besides, it defeats the entire concept of the paddle shifters which are suppose to respond to a 'flick' of the paddle, not a press & hold :mad:
Yes, it is clearly BS. The transmission shift lever appears to select the correct shift direction regardless of how quickly or leisurely one moves the lever.

The turn signal likewise always signals the right direction regardless of quick or slow one moves the lever.

I've driven other cars with paddle shifters and used the paddle shifters and have never encountered a paddle shifter causing a shift in the opposite/wrong direction. It was how well the paddle shifters worked and how well they took the place of manual shifting that helped sell me on going with an automatic which offered paddle shifting.
The turn signal likewise always signals the right direction regardless of quick or slow one moves the lever.

I know this issue isn't funny, but this made me laugh...

;)
The only correct way to troubleshoot this problem would be to secure a wiring diagram and monitor the paddle inputs to the SCCM inputs and correlate that to the desired SCCM outputs on the Can Bus results. Then monitor the can bus to determine the correct message gets sent to the TCM.
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