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Battery coolant heater class action? This is round two for me....

7713 Views 23 Replies 11 Participants Last post by  stefanundtina2005
Hi all,

I just got the code pulled on my latest CEL. It is the POE15. Same as last May when they replaced the first battery coolant heater.

9 months later and the problem is back.

I had told a Walnut Creek, CA service center tech in June that I was still having problems with my heat/defrost after the repairs. He dismissed my concern, claiming it was fine and that the center (in another state) that replaced the coolant heater, must've just failed to bleed the system. I've had intermittent problems with the heat/defrost since. Today the service manager at the Walnut Creek service center said that I could still drive vehicle, but I likely wouldn't have heat in hybrid mode. So it seems they are related after all. I was also told I wouldn't be able to charge vehicle so long as this problem remains.

In light of the numerous accounts of this failure, including others like me with multiple failures, I am going to be calling class action attorneys today. Last time I spoke with one, there were not nearly as many accounts of this failure. That was 8 months ago. Now there are so many I'm surprised there isn't already a firm seeking certification.

Feel free to contact me via messaging if interested.
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To be honest I don't think you have any room to stand on lawsuit wise. The component in question here has a 10 year 150k mile warranty. But with the crazy backorder log on the heater you're probably able to get it lemon lawed just on the time it takes to get repaired. Some state any repair taking more then 30 days is eligible
To be honest I don't think you have any room to stand on lawsuit wise. The component in question here has a 10 year 150k mile warranty. But with the crazy backorder log on the heater you're probably able to get it lemon lawed just on the time it takes to get repaired. Some state any repair taking more then 30 days is eligible
FCA already offered a buyback after the firs time this happened and it was in shop 3 weeks. I've also had 2 lemon law attorneys offer to take my case. This is clearly a large scale problem with these vehicles. What's more, other issues I've had with the vehicle that were initially dismissed I'm now being told are related to the battery coolant heater, like the intermittent heating/defrost. The fact that FCA is telling people they can still drive the vehicle while waiting for parts would imply they are doing a CYA so that people can't invoke the lemon law, despite the long term effects it may have on battery/vehicle driving in that condition. One of the service managers I spoke with today advised against driving it when POE15 code was present, but also acknowledged that the wait for a repair would be lengthy. Plus, most people don't buy these vehicles to drive it in ICE mode. FCA knows about the problem and yet they continue to churn out the vehicles for sale.
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FCA already offered a buyback after the firs time this happened and it was in shop 3 weeks. I've also had 2 lemon law attorneys offer to take my case. This is clearly a large scale problem with these vehicles. What's more, other issues I've had with the vehicle that were initially dismissed I'm now being told are related to the battery coolant heater, like the intermittent heating/defrost. The fact that FCA is telling people they can still drive the vehicle while waiting for parts would imply they are doing a CYA so that people can't invoke the lemon law, despite the long term effects it may have on battery/vehicle driving in that condition. One of the service managers I spoke with today advised against driving it when POE15 code was present, but also acknowledged that the wait for a repair would be lengthy. Plus, most people don't buy these vehicles to drive it in ICE mode. FCA knows about the problem and yet they continue to churn out the vehicles for sale.
Hi There,

I saw your Pacifica Hybrid with Battery coolant heater issue. Did you ever got that resolved with Lemon Law?
I am also in same situation as yours and have taken to my van to dealership 5 times and have replaced Heater once and issue is still there . I am looking to have it replaced but I am not familiar with the process.

Did you have to use Lemon Law Layer ? I am looking for process or any recommendations .

Thanks.
I too am having the same problem. I had mine replaced last year and now having the same issue again. I’m having to keep driving while waiting for the part due to needing a vehicle. Please keep posting about updates with your case.
Our 2020 was bought new (15 miles, 12 which were our test drive) in October of 2020. In July of 2021 we had a battery coolant heater issue, dealership said no problem to drive around and charge battery (might have been a mistake with all my reading now...). Took until September of 2021 to be repaired due to "chip shortage". December of 2021 we again had the battery coolant heater fail while running on battery and had a VERY cold drive until the ICE kicked in, and were in a rental for 3 months due to "shipping issues". June of 2022 while charging noticed engine fan started to running extremely loud. Husband drove van and got the red turtle speed may be limited warning. Back to the dealership for a software update. Returned from the dealership and CEL light comes on a week later, once again battery coolant heater fail. Dealership returned the vehicle and we charged it up again noting the engine fan running extremely loud. Drove to store and again red turtle speed may be limited. Upon exiting the store the lift gate will not open either electronically or manually. We are again in a rental vehicle (that doesn't really work as we struggle to make car seats fit (reason for the van!) until at least August as the part is now "back ordered".

We LOVE our hybrid van (many of my coworkers ask about it, but also ask why i have so many "new" cars, hard to recommend when it's in the shop so much!) when it works and is reliable.

Is there a for real class action or lemon law (we do qualify in our state IF this repair doesn't work, we have to give Chrysler 3 attempts to fix the problem)?

Can't believe i payed so much money for a vehicle that is less reliable than the one i turned in and payed less than 1/2 for new. I REALLY want this repair to work. Does anyone have any ideas on how to actually get a decent part?
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Did you have the PCM, HCP, and AHCP software updated addressing the issue? If not, changing the part would not fix the issue as the problem is/was caused by bad software causing false positive codes with three strikes and you are locked out of the BCH. If you don't get the software updated you will be changing out the part endlessly until Stellantis releases the flash fix for the hard-locked code caused by the false positives.

I am surprised the software update is still in a TSB state and not a recall by now.
Did you have the PCM, HCP, and AHCP software updated addressing the issue? If not, changing the part would not fix the issue as the problem is/was caused by bad software causing false positive codes with three strikes and you are locked out of the BCH. If you don't get the software updated you will be changing out the part endlessly until Stellantis releases the flash fix for the hard-locked code caused by the false positives.

I am surprised the software update is still in a TSB state and not a recall by now.
Can you expound on that a bit in layman’s terms? Will he continue to incorrectly replace the BCH because it’s not really failing or…?
Did you have the PCM, HCP, and AHCP software updated addressing the issue? If not, changing the part would not fix the issue as the problem is/was caused by bad software causing false positive codes with three strikes and you are locked out of the BCH. If you don't get the software updated you will be changing out the part endlessly until Stellantis releases the flash fix for the hard-locked code caused by the false positives.

I am surprised the software update is still in a TSB state and not a recall by now.
Can you explain this better so i can give this information to the dealership (i get they should know but....)
I REALLY want my van to work
Can you explain this better so i can give this information to the dealership (i get they should know but....)
I REALLY want my van to work
The TSB has also been released as an RSU. Run your info here and see if you have anything outstanding.

Fleet - Recall/Rapid Response Inquiry (chrysler.com)
Hello everyone,

We're disheartened to learn about the experience you've had with your vehicles and we'd like to offer our team's support. @ThisSuckersElectrical is correct-- there is indeed a TSB 08-052-22 that was released in regard to a flash for the Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) for 2021 Model Year Chrysler Pacifica PHEV's, which addresses symptoms similar to what some of you have described. For your convenience, I've included a snippet of the TSB and the symptoms it intends to address.
Font Screenshot Parallel Number Document
Font Screenshot Document Publication Number


As you can see, in order for this flash to be successful, you will also need to complete TSB 18-050-22 REV A. in regard to flashing your Powertrain Control Module (PCM) with the latest software. You can find more information on this TSB, below.
Font Screenshot Parallel Number Software


If anyone is experiencing concerns and would like additional support alongside your dealer visit, please do not hesitate to send our team a private message, so we can get that arranged for you. If you are experiencing similar concerns but do not believe the TSB's above apply to you, we'd be more than happy to help investigate further.

Thanks in advance,

Courtney
Chrysler Cares
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I think this is round 3 or 4 for us. I've lost count.

It was already lemoned but they wouldn't provide a replacement and there were no new vehicles to buy so it became a cash and carry.

What a mistake going with Mopar over Toyota!
Is there a similar TSB for a flash for the Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP)

for MY2020?
Hello, I drive a 2017 Chrysler Pacifica Hybrid in Germany. The check engine light has been on for a while. After I went to the shop they gave me the error log. By saying that it is error code POE15-00. Since Chrysler no longer has support in Germany, they don't know how to fix the error either.

I have in a post on the internet (Battery coolant heater class action? This is round two...) read that it can be fixed with a software update. Is that correct?

Can you help me before I have to spend possibly thousands of euros and the problem will probably come back.

Best regards

Family Winkler from Germany
I have in a post on the internet (Battery coolant heater class action? This is round two...) read that it can be fixed with a software update. Is that correct?
That is correct as long as the code has not been thrown too many times hard locking the firmware in the ECH forcing you to replace the part. If the ECH is hard locked and you replace it without updating the PCM, HCP, and AHCP to the proper software you will be endlessly replacing the ECH.
That is correct as long as the code has not been thrown too many times hard locking the firmware in the ECH forcing you to replace the part. If the ECH is hard locked and you replace it without updating the PCM, HCP, and AHCP to the proper software you will be endlessly replacing the ECH.
Chrysler Cares says there is no update for my 2020.

Yet here I am replacing the heater again.
That is correct as long as the code has not been thrown too many times hard locking the firmware in the ECH forcing you to replace the part. If the ECH is hard locked and you replace it without updating the PCM, HCP, and AHCP to the proper software you will be endlessly replacing the ECH.
As noted earlier in this thread, my vehicle was fully up to date and has thrown zero codes for the ECH until a complete failure/permanent lock two weeks ago.
Chrysler Cares says there is no update for my 2020.

Yet here I am replacing the heater again.
Have you taken it to the dealer and had them verify that claim with their wiTECH reader that actually pulls and installs the updates? How would Chrysler Cares know the PCM, HCP, and AHCP versions without physically connecting to the vehicle with a wiTECH device?

My previous 2018 has had 7 PCM, HCP, and AHCP updates to date and soon to be 8. My current 2021 has had 3 since owning it and one more on the way for the Recall 03A.
I dropped it off at the service department today to get the battery heater unit replaced. The service advisor claimed that they had to check for all of these systems to be up to date before Chrysler would authorize the repair.

I asked him to check it again, but not sure what else I can do
Hello, I drive a 2017 Chrysler Pacifica Hybrid in Germany. The check engine light has been on for a while. After I went to the shop they gave me the error log. By saying that it is error code POE15-00. Since Chrysler no longer has support in Germany, they don't know how to fix the error either.

I have in a post on the internet (Battery coolant heater class action? This is round two...) read that it can be fixed with a software update. Is that correct?

Can you help me before I have to spend possibly thousands of euros and the problem will probably come back.

Best regards

Family Winkler from Germany

Hi, thanks for the quick response. I will discuss this with the workshop. If the problem persists after that, would the following part be the correct one for my vehicle?


And where could I get such a software device? I'm considering buying one myself so I don't have to drive 3-5 hours to the dealer every time to have the vehicle read out there.

Best regards and
And thanks for the quick help
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