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Is your VIN part of 03A

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Model Year:
2018
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Hybrid
Trim:
Limited
Seems like this happens more on the post-2020's. I couldn't find any 2017-2019's in the threads talking about this problem. Any circa 2020's owners experience this fault?
 

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This is the first time we've learned exactly how many PacHys Chrysler has produced.

Only 67,000.
 

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Looks like they found the source of the shutdown-while-driving issue and have a fix! See the article for full details.
It’s a little puzzling to me. The problem is a connector that can get shorted and the resolution is a software update. Doesn’t make sense.
 

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2022 Pacifica Ltd Hybrid
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I logged into my Canadian MOPAR account and it shows the recall for my 2021 PacHy already. You will be hearing more soon.

This recall is being done voluntarily by FCA, it’s not being ordered by regulators. Search your VIN on the Canadian Chrysker site.
Indeed upon searching Chrysler Canada website it does show my serial # as being involved in the recall. We all go into the waiting game and hope nothing untoward happens in my driving this winter.
 

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It’s a little puzzling to me. The problem is a connector that can get shorted and the resolution is a software update. Doesn’t make sense.
As mentioned in the recall document, the fixed connector is not ready yet.


This update is to fix the "unexpected" part of the unexpected shutdown.


I assume there will be another recall later to replace the part. Manufacturing still has shortages and lead times, I wouldn't be surprised if it's 4-6 months to get a new connector produced.
 

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I don't like it.
" internal transmission wiring connector which could short "
Does it mean that the entire transmission will have to be replaced? AFAIK Chrysler doesn't consider it field repairable.
 

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2021 Pacifica Hybrid Touring-L Plus
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Good info from @alphawolff in another thread about this defect. I will copy his post here and provide a link.

Post


Hey everyone, factory tech here whose personally diagnosed these a decent amount of times this year.

To keep it simple the A drive motor has three resolvers: sin, cos, and excitement. In all cases I’ve seen, the cos resolver is shorting to the transmission case and causing a short to ground condition. It is either intermittent, and will cause a random stall, or shorts in such a way that you can instantly see it on a DMM and the vehicle won’t start and the code will be active

I believe the above poster is right is condemning the internal harness as faulty. It’s probably bad routing or some such.

I don’t see how a flash will solve this unless the flash is just to prevent the immediate stall condition. The problem isn’t common, but I do get about one of these a month coming into the shop and this is in socal with a **** high amount of hybrids on the road.

They might just send the recall flash and deal with the transmission failures as they come as they aren’t exactly common. The trans is covered under the 10 yr/150k mile hybrid warranty


Also, for those concerned with the dealers replacing the PIM, the reason for that is if the short isn’t present during testing the diagnostic flow chart leads to the replacement of the PIM. The first two I had we replaced the PIM first before replacing the transmission. Now when you go to make a Star case to order a PIM the star center will just tell you it’s the transmission and order that first to avoid that waste of time
 

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2022 Pacifica Hybrid Limited / Granite Crystal
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I don't understand, based on Title 49 of US Code, Subchapter II, section 30120 (49 U.S. Code § 30120 - Remedies for defects and noncompliance and section (a) listed below for convenience), how the remedy of updating software on the PIM / IPC is considered a repair, or allowed to be considered a repair, by the NHTSA. It does not fix the problem.

There is a provision in this section (section (e)) that appears to allow for individuals to petition the Secretary of Transportation to conduct a hearing to decide on if the manufacturer's remedy has met requirements.

(a)Ways To Remedy.—
(1)Subject to subsections (f) and (g) of this section, when notification of a defect or noncompliance is required under section 30118(b) or (c) of this title, the manufacturer of the defective or noncomplying motor vehicle or replacement equipment shall remedy the defect or noncompliance without charge when the vehicle or equipment is presented for remedy. Subject to subsections (b) and (c) of this section, the manufacturer shall remedy the defect or noncompliance in any of the following ways the manufacturer chooses:
(A)if a vehicle—
(i) by repairing the vehicle;
(ii) by replacing the vehicle with an identical or reasonably equivalent vehicle; or
(iii) by refunding the purchase price, less a reasonable allowance for depreciation.
(B)
if replacement equipment, by repairing the equipment, replacing the equipment with identical or reasonably equivalent equipment, or by refunding the purchase price.


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(e)Hearings About Meeting Remedy Requirements.—
On the motion of the Secretary or on application by any interested person, the Secretary may conduct a hearing to decide whether the manufacturer has reasonably met the remedy requirements under this section. Any interested person may make written and oral presentations of information, views, and arguments on whether the manufacturer has reasonably met the remedy requirements. If the Secretary decides a manufacturer has not reasonably met the remedy requirements, the Secretary shall order the manufacturer to take specified action to meet those requirements and may take any other action authorized under this chapter.
 

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Here is the internal wiring harness from the excellent Pacifica transaxle teardown done by the WeberAuto YouTube channel.
I don't see how that part can short to the transmission housing.

Combined with another tech's comments, I'm pretty sure the part that experiences failure is this one:

Motor Resolver

Specifically that 90 degree connection wouldn't be very robust.


I can't find the listed part numbers on Chrysler's website so they don't make it easy.
 

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2021 Pacifica Hybrid Touring-L Plus
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I don't understand, based on Title 49 of US Code, Subchapter II, section 30120 (49 U.S. Code § 30120 - Remedies for defects and noncompliance and section (a) listed below for convenience), how the remedy of updating software on the PIM / IPC is considered a repair, or allowed to be considered a repair, by the NHTSA. It does not fix the problem.

There is a provision in this section (section (e)) that appears to allow for individuals to petition the Secretary of Transportation to conduct a hearing to decide on if the manufacturer's remedy has met requirements.

(a)Ways To Remedy.—
(1)Subject to subsections (f) and (g) of this section, when notification of a defect or noncompliance is required under section 30118(b) or (c) of this title, the manufacturer of the defective or noncomplying motor vehicle or replacement equipment shall remedy the defect or noncompliance without charge when the vehicle or equipment is presented for remedy. Subject to subsections (b) and (c) of this section, the manufacturer shall remedy the defect or noncompliance in any of the following ways the manufacturer chooses:
(A)if a vehicle—
(i) by repairing the vehicle;
(ii) by replacing the vehicle with an identical or reasonably equivalent vehicle; or
(iii) by refunding the purchase price, less a reasonable allowance for depreciation.
(B)
if replacement equipment, by repairing the equipment, replacing the equipment with identical or reasonably equivalent equipment, or by refunding the purchase price.


----

(e)Hearings About Meeting Remedy Requirements.—
On the motion of the Secretary or on application by any interested person, the Secretary may conduct a hearing to decide whether the manufacturer has reasonably met the remedy requirements under this section. Any interested person may make written and oral presentations of information, views, and arguments on whether the manufacturer has reasonably met the remedy requirements. If the Secretary decides a manufacturer has not reasonably met the remedy requirements, the Secretary shall order the manufacturer to take specified action to meet those requirements and may take any other action authorized under this chapter.
I'm guessing there's a definition of "defect" somewhere that would be good to find. It also appears that not all the wiring harnesses are bad, otherwise a lot more vans would have had the problem. And there's no way for FCA to figure out which ones are bad, otherwise they probably would have done that as well. This remedy fixes the safety issue of a sudden shutdown, which then allows FCA to replace these transaxles like any other part that breaks.
 

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I don't like it.
" internal transmission wiring connector which could short "
Does it mean that the entire transmission will have to be replaced? AFAIK Chrysler doesn't consider it field repairable.
Unlikely they are just going to replace every transaxle. The remedy fixes the sudden shutdown and that’s it. If you have this problem the transaxle will need to be replaced.
 

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So the “fix” is to not shut down the engine immediately but to allow a few seconds for you to pull over to the side of the road? This is starting to sound like another one of those recalls where I will wait awhile to see how everything pans out.
 

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Unlikely they are just going to replace every transaxle. The remedy fixes the sudden shutdown and that’s it. If you have this problem the transaxle will need to be replaced.
So there is a connector inside the transmission that fails sometimes and causes the vehicle to shutdown. And the fix is to not really fix the problem by replacing a connector that has been known to short out. The fix is for the software to ignore the problem for long enough that you can safely pull the vehicle over. That translates to, the problem is rare enough and difficult enough to fix that we don’t want to do the right thing and fix it properly so we’ll just take away some of the danger involved with the failure and only fix the ones that actually fail.
 

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This is another example of where transparency would go a long way. Instead of explaining the problem in vague terms tell us exactly what happens to the connector when it fails, why the engine needs to be shut down, and why it makes sense to not fix it completely and properly, etc.

Because to me with the little amount of information I have on this issue, it appears that Chrysler doesn’t want to really fix the problem because it’s too costly and time consuming.
 

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Model Year:
2018
Gas / Hybrid:
Hybrid
Trim:
L
Our 2018 PacHy is a part of this recall. I was just in the Mopar web portal for my vehicle and it says "Incomplete but repair parts are not available"

I never got an email from Chrysler...only noticed this because troubleshooting another noise.

Do I just keep logging into the portal until it says "parts available?" or do I call the local dealership?
 

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This remedy fixes the safety issue of a sudden shutdown, which then allows FCA to replace these transaxles like any other part that breaks.
Thank you for the great information in this thread! Knowing what's happening makes me feel better. I see how Chrysler might argue that the software change prevents the sudden stall at speed, and mitigates the accident risk. But for ourselves and our families on the road, having a cellphone, flares/lights, and other breakdown safety gear in our PacHy's seems a wise precaution.

Since the software change allows the van to keep running for a short time, I wonder why it can't be programmed to allow a "limp home" mode for a longer time? I've heard some transmissions in other cars provide that. It's not a question of preventing further damage to the transmission, since it's going to get pulled out anyway.
 

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Since the software change allows the van to keep running for a short time, I wonder why it can't be programmed to allow a "limp home" mode for a longer time? I've heard some transmissions in other cars provide that. It's not a question of preventing further damage to the transmission, since it's going to get pulled out anyway.
I don't think anything I've seen so far indicates what the software change will actually do, beyond not killing the vehicle immediately. Perhaps a short time is two minutes to get off the road...or perhaps it's two weeks to get to the dealer. I think we'll just have to wait until we get official word from Chrysler or until someone encounters the problem after their software has been updated.
 
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