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Discussion Starter #21
I got to experience this last night myself.

I heard it blowing away in the garage while I was in the house watching TV. I took it in for the U73 fix the day before, but I don't think its related. We had triple digit temps yesterday and I'm sure the garage was at least 90. I plugged it in right away when we got home with 10% remaining. After about 20 min it was up to 30% when it got really loud. Since we didn't need to go anywhere right away, I just unplugged it and waiting for cooler temps in the morning.

But it is alarmingly loud. It is not a sound you feel good about coming from your $50k vehicle.
I hear you, believe me.

So, I bring the car into the dealer yesterday afternoon (so they can work on it this morning), and they tell me...oh by the way another recall is showing on your car. It appears to be the battery heater recall. UGH. 2 Software update recalls so far, and 1 physical device recall and the car was purchased in Nov. 2017. So far I have had more recalls on this car, then my last 2 cars in a WAY shorter timeframe. I hope this is not going to be the new standard. Also, the service person told me he has heard that Tesla's do the same thing with the fan when the engine gets hot...I think he meant the batteries, but who knows. He then proceeds to tell me that he has a BMW electric car and his car also does the same thing for 2 minutes. Hmmm...am I buying it....not yet. Waiting to hear from Chrysler why we NEVER had the issue prior to the software recall updates being applied. It cant be that hard for Chrysler to find out ALL the things that the software update "fixes". I guess we will see.

I will update when I hear back from the dealer (hopefully today). I am hopeful that ChryslerCares follows up with the dealer as well, as I gave them the case number that was assigned to me. Crossing my fingers for some positivity!
 

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Yea, if it wasn't like that before the software update, then something sounds suspicious.
 

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Discussion Starter #23
Well, as expected, service at dealer tells me the fan is coming on to keep the battery and modules at the proper temperature. When I asked why it only started doing it after I received the software update, he said...well, the update must have corrected an issue. Needless to say, at least I have it documented should something unexpected occur. Picking up the car tomorrow and will hopefully hear from Chrysler with a follow up.
 

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If the battery really was overheating before, then that's a good thing that it would kick on like that. The fans in my Tesla are also fairly loud when they kick on. I hear the loud fans when I do the remote start in the hybrid, not sure if that's the same thing you guys are talking about here.
 

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2018 Chrysler Pacifica hybrid. Recall done yesterday on pcm. Won't charge now. Dozens of charge fault notifications in the u connect app. Says charge started then stopped repeatedly. 400 miles on it
 

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Discussion Starter #26
I heard back from Chrysler today they were calling to follow up with me. The person I spoke to confirmed that the Software Update I had received "tweaked" something that would make the fan come on during charging, and/or when needed. Even though it had not happened to us previously, this is now working as it should. There is no reason for concern, the car and fan are doing what they are supposed to be doing. I can now sleep better knowing that the fan working in my garage is necessary and working properly as needed.

Special thanks to ChryslerCares for the case, and for working it to completion!

As a separate note, Service Managers at the dealer were debating with me about the FOB's. We had only received 2 FOB's when we purchased the vehicle (with keysense)...1 key was a normal one, the other one was a keysense key (which I never realized by turning the FOB over it actually says "keysense" versus the chrysler emblem). Thank you to this site and some posts about a year or so ago where Chrysler Cares verified 2 key FOB's come with the car, and an additional 1 keysense FOB as well. Speaking with Chrysler cares about this, and they are working with the dealer to get me the other normal key that we never received. Also, just to mention, I had to sit in the Service Managers office and he called someone to ask "How many Key Fob's come with a Chrysler Pacifica Hybrid?", and the response was "it depends". HA! If you have keysense than it would be 3 keys. Then the manager tells me that their sales people and the sales manager have the wrong information they are spewing out. I told him, I guess you should go and tell them! Jeeez!
 

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Discussion Starter #27
2018 Chrysler Pacifica hybrid. Recall done yesterday on pcm. Won't charge now. Dozens of charge fault notifications in the u connect app. Says charge started then stopped repeatedly. 400 miles on it
I am so sorry to hear that. Bring it back to the dealer...but I personally would open a case with ChryslerCares. Phone number is also on Chryslers site.https://www.chrysler.com/webselfservice/chrysler/index.html
Here is there Phone#
800-247-9753
Se Habla Español
Open 24 hours each day
 

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Discussion Starter #28
If the battery really was overheating before, then that's a good thing that it would kick on like that. The fans in my Tesla are also fairly loud when they kick on. I hear the loud fans when I do the remote start in the hybrid, not sure if that's the same thing you guys are talking about here.
It is the loud fan noise. I have never heard it on another vehicle so I had nothing to compare it too. Neither did the dealer service, which is a bit scary. However, after this all, my only concern I had was having never heard that since Nov. 2017, when charging, was what possible damage could have happened to the battery/car in that time. I guess that is why there is a 10 year, 100,000 mile warranty on the battery pack.
 

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When I asked why it only started doing it after I received the software update
I got the software updates yesterday. My van started making this fan noise when the weather temperature got hot - a few weeks ago here in southern Nevada. I also noticed it wouldn't charge when this was happening.
 

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It is the loud fan noise. I have never heard it on another vehicle so I had nothing to compare it too. Neither did the dealer service, which is a bit scary. However, after this all, my only concern I had was having never heard that since Nov. 2017, when charging, was what possible damage could have happened to the battery/car in that time. I guess that is why there is a 10 year, 100,000 mile warranty on the battery pack.
150,000 warranty if you live in California (and maybe other ZEV states)
 

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I had my software update applied for the cruise control recall completed last week - right at about 12k miles. When I scheduled the appointment I was told it wouldn't take more than an hour. Based on that I planned my work schedule for the day. A little more than hour went by when the service advisor came in and said the update was completed but they have to charge the battery up to 100% and it would be another 40 min. I told him not to worry about it as I started out with a full charge and I had to go about my day. He said the recall instructions stated to charge the battery. I then told him I would need a car or transportation as I had several appointments to make, but after checking with the service tech, they determined it wasn't absolutely required to charge it, so they released my PacHy to me. I didn't note anything different about how it operated that day. The next morning I noted my battery charge was 100%, but electric miles shown was 34, versus the 38-40 normally shown. My first thought was "should I have let them recharge the battery back to 100%?" While it drove just fine like it did before and I was annoyed that some setting were set back to their defaults - it was an easy fix. I did experience my very first frozen screen where it didn't respond to any inputs. I powered down and started up again and it was back to normal. What I didn't know is if the battery capacity wasn't being used fully, or if I was getting the same electric mileage as before. So yesterday I drove a loop that I know would deplete my battery and kept track of the mileage point when it was fully depleted. I went 34.7 miles before the engine kicked on to run in hybrid mode, right about the point it always did. I have driven a few more miles one other time, but yesterday was very warm and humid and I had the a//c set at 72 with the cooled seat on high, and during part of the loop, I was driving into the wind. So it appears the update adjusted the amount of electric miles shown to be more realistic to real world driving. I'll keep track of anything else that seems off, but for now everything is working as it should.
 

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I noticed the same issue. After cruise control software update now my car is incredibly loud when charging. Never like this before and it can be heard throughout most of my house. Hard to charge at night now. Looked online because I thought something was wrong. You would think they would communicate this issue/solution with customers.

I understand this may be to help the battery stay cool, but how much extra energy does it take to charge now and wow is it annoying. We have AC unit in garage with a return coming from inside house so sound travels from garage right into the house very easily.
 

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Discussion Starter #33
I noticed the same issue. After cruise control software update now my car is incredibly loud when charging. Never like this before and it can be heard throughout most of my house. Hard to charge at night now. Looked online because I thought something was wrong. You would think they would communicate this issue/solution with customers.

I understand this may be to help the battery stay cool, but how much extra energy does it take to charge now and wow is it annoying. We have AC unit in garage with a return coming from inside house so sound travels from garage right into the house very easily.

I know right, communication about updates and what they do would be great. lol Last night we came home and plugged in the car into the level 2 charger in the garage. We proceeded into our house via the laundry room, open kitchen to the living room and sat down to watch TV. We must have heard the fan kick on at least 4 times during those 2 hours. Hopefully it is doing what it REALLY needs to do versus making my electric bill go higher. :)

In case you didn't notice, another fun item that was "fixed" is that now after a full charge, if you look at how many miles you can go on the battery it probably says "33" where it used to say somewhere between 38-43 before....another "fix". At least now it matches what it said on the sticker when purchased! lol
 

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I also noticed the same incredibly loud fan while charging 'feature' after the recall U73/ PCM update yesterday. Fan noise is double what it used to be while charging. I thought it was loud before... I'm sure this helps the batteries to stay cool though.
 

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I am also experiencing this same problem. Prior to receiving the U73 update on the 4th, my 2018 would activate the battery cooling fan at a quiet, lower speed early in the charging cycle. Now it waits longer and turns on at maximum speed. From my experience with my Ford Focus Electric, this is definitely not normal for an electric vehicle. It is so loud that being in the garage when it kicks on is uncomfortable. Me thinks someone messed up the fan speed profile!
 

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I am also experiencing this same problem. Prior to receiving the U73 update on the 4th, my 2018 would activate the battery cooling fan at a quiet, lower speed early in the charging cycle. Now it waits longer and turns on at maximum speed. From my experience with my Ford Focus Electric, this is definitely not normal for an electric vehicle. It is so loud that being in the garage when it kicks on is uncomfortable. Me thinks someone messed up the fan speed profile!
I also have a Focus EV. I was charging it outside my garage and it sounded loud too. My wife mainly drives the PacHy so I haven't really experienced the loudness of the PacHy.
 

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I noticed the same issue. After cruise control software update now my car is incredibly loud when charging. Never like this before and it can be heard throughout most of my house. Hard to charge at night now. Looked online because I thought something was wrong. You would think they would communicate this issue/solution with customers.

I understand this may be to help the battery stay cool, but how much extra energy does it take to charge now and wow is it annoying. We have AC unit in garage with a return coming from inside house so sound travels from garage right into the house very easily.
I know right, communication about updates and what they do would be great. lol Last night we came home and plugged in the car into the level 2 charger in the garage. We proceeded into our house via the laundry room, open kitchen to the living room and sat down to watch TV. We must have heard the fan kick on at least 4 times during those 2 hours. Hopefully it is doing what it REALLY needs to do versus making my electric bill go higher. :)

In case you didn't notice, another fun item that was "fixed" is that now after a full charge, if you look at how many miles you can go on the battery it probably says 33 or 34...cant remember exactly... where it used to say somewhere between 38-43 before....another "fix". At least now it matches what it said on the sticker when purchased! lol
I also noticed the same incredibly loud fan while charging 'feature' after the recall U73/ PCM update yesterday. Fan noise is double what it used to be while charging. I thought it was loud before... I'm sure this helps the batteries to stay cool though.
I am also experiencing this same problem. Prior to receiving the U73 update on the 4th, my 2018 would activate the battery cooling fan at a quiet, lower speed early in the charging cycle. Now it waits longer and turns on at maximum speed. From my experience with my Ford Focus Electric, this is definitely not normal for an electric vehicle. It is so loud that being in the garage when it kicks on is uncomfortable. Me thinks someone messed up the fan speed profile!
Hi everyone,
We understand your frustrations. If you have not done so already, please send us a private message with your VIN, mileage, and current dealership. We would like to look further into this situation.
Lydia,
Chrysler Social Care Specialist
 

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this just isn't affecting you Pacifica owners- we live next door to someone with a 2019 and, AGAIN last night, at 11:45 PM and again at around 1 AM- what sounded like a jet engine went off in the neighbors driveway, waking everyone in 2 or 3 households up.

We have a 2019 e-hybrid SUV from a German manufacturer. It too cycles the fan at night when charging- but at lower speeds and nowhere near this loud.

I can't imagine any engineer thinking this level of noise from the Pacifica was reasonable. Hey Chrysler, this is affecting lots more people than your Pacifica owners. Please create a fix. Thank you.
 

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this just isn't affecting you Pacifica owners- we live next door to someone with a 2019 and, AGAIN last night, at 11:45 PM and again at around 1 AM- what sounded like a jet engine went off in the neighbors driveway, waking everyone in 2 or 3 households up.

We have a 2019 e-hybrid SUV from a German manufacturer. It too cycles the fan at night when charging- but at lower speeds and nowhere near this loud.

I can't imagine any engineer thinking this level of noise from the Pacifica was reasonable. Hey Chrysler, this is affecting lots more people than your Pacifica owners. Please create a fix. Thank you.
@ChryslerCares did you see this post?

@cant-sleep maybe you could give the forum info to the neighbor in case there is an update needed.
I don't have a hybrid, so I don't know what is "normal" for the van. Maybe the owner could download owner's manuals online (to see if there is anything that would help with scheduling charging times) since there weren't usually many manuals given with the van.

Welcome to the forum. So sorry the neighbor's van is so loud when charging.
 

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this just isn't affecting you Pacifica owners- we live next door to someone with a 2019 and, AGAIN last night, at 11:45 PM and again at around 1 AM- what sounded like a jet engine went off in the neighbors driveway, waking everyone in 2 or 3 households up.

We have a 2019 e-hybrid SUV from a German manufacturer. It too cycles the fan at night when charging- but at lower speeds and nowhere near this loud.

I can't imagine any engineer thinking this level of noise from the Pacifica was reasonable. Hey Chrysler, this is affecting lots more people than your Pacifica owners. Please create a fix. Thank you.
What will you do if Chrysler fixes this issue for you, change your username? I’m just saying this because when you join a forum and you post your first message with a complaint like that AND your username reflects the nature of your complaint, I would imagine that a lot of us who’ve been on the forum for awhile will only take your complaint with a grain of salt. Not saying this to offend you or anything. I’m just making you aware (if you’re not already) that it can be hard to take someone seriously when certain conditions/circumstances are present (i.e. 1st message, newly joined, complaint, and a username that’s slightly acidic.)
 
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