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Discussion Starter #1
ESS Survey

Since we are seeing so many posts on this forum involving issues with the ESS (Engine Start/Stop) system, I thought maybe an informal survey would help to find out where everyone involved currently stands regarding this controversial feature. Also, I thought it would be interesting to find out whether owners have had the V53 Recall done, and if so, what effect it has had on their ESS issues. Although the V53 Recall is designated as a Power Steering Assist recall, it actually affects the ESS system directly as it involves the auxiliary battery ground wire connection.

I am asking all of you who own a 2017+ Pacifica with ESS and are interested in knowing more about the ESS issues as they have affected other Pacifica owners, to respond to this survey. This is only a short survey and is not done by Chrysler or for Chrysler or for any other group, and your participation in the survey should be only on a voluntary “want to know more about it” basis. To help make the replies to this survey short, only the question number and a short answer to each are needed in your replies, although some questions may require more than one answer separated by commas. Please keep your replies short.

If you have any additional comments or questions you want to add to the ensuing discussion, please include them AFTER you have answered the survey questions.

So here is where the survey questions start. Each question below has a number associated with it on the left. To reply to the survey, just list the question number and your reply to that question. It’s best that you answer all survey questions, but not required.

SURVEY QUESTIONS

1. Do you believe the ESS system on your Pacifica is working as designed?
2. Do you usually disable the ESS system because you don’t like it or think it’s a nuisance?
3. Are you aware of the main pre-conditions needed for the ESS system to be active?
4. When ESS is enabled but inactive, do you often see the status message “Start/Stop Battery Charging”? Does this status message appear more often or longer than you think it should? Do you believe these messages are only because you take short trips and the batteries never get a chance to get fully charged up? (THREE ANSWERS HERE)
5. If your ESS system doesn’t work as you think it should, do you think it’s because one or both of the batteries are bad? If so, do you think the battery or batteries are bad due to an ESS design problem or because they’re not being charged up enough? (TWO ANSWERS HERE)
6. Have you already had one or both of your batteries replaced under warranty? If so, did the battery replacement(s) fix your ESS problems? (TWO ANSWERS HERE)
7. Have you had the V53 Recall done? If so, did it fix your known ESS problems? If not, are you confident that the recall was done correctly and thoroughly? (THREE ANSWERS HERE)
8. Do you have the factory tow package? Is your Pacifica a hybrid or a gasser? (TWO ANSWERS HERE)
9. What year is your Pacifica and what trim package do you have?
10. How many miles do you have on your Pacifica? How many miles do you put on per year? (TWO
ANSWERS HERE)

END OF SURVEY QUESTIONS

To illustrate the format of a survey reply, I’m including my own (the first) survey reply below:

1. YES
2. NO
3. YES
4. SOMETIMES, NOT ANYMORE, NO
5. NO, not a design problem
6. NO neither has been replaced, the V53 Recall fixed all my known ESS problems
7. YES, YES, I think some V53 Recalls are possibly not done correctly or completely
8. YES, gasser
9. 2018 Touring L
10. 20K, 12K per year

The format of your survey reply should be similar in form. Take the survey only once whenever you can find time; we can summarize and analyze the results later. Thanks for participating.
 

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Discussion Starter #3
That's nice Frig but is there anything in those other surveys about the V53 Recall? (Particularly whether or not the recall fixed known ESS problems.)
 

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That's nice Frig but is there anything in those other surveys about the V53 Recall? (Particularly whether or not the recall fixed known ESS problems.)
Hence similar. You're welcome.
 

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Discussion Starter #5
Would it be asking too much for you to answer the survey questions?
 

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I will play but not sure where this will go.

1. YES
2. NO but I manipulate it by not fully pressing the brake to keep ESS from activating at times.
3. YES , could be but I cannot prove it
4. Mostly in winter. Mostly in winter? Maybe
5. Batteries not bad as far as I know Hard to say.
6. No and not applicable
7. Had no problems before or after V53 - knock on wood
8. no no regular no lead powered
9. 2018 (build 3/18) with Advanced safety
10.12000,10000
 

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Discussion Starter #8
Thank you Hilltoppper (with 3 P's) for your survey reply.

One of the conditions for ESS to remain autostopped is that the interior temperature has to be close to the set desired temperature if Climate Control is set to AUTO. This can result in an autostart sooner than desired if the temperature gets too far from that setting, in my experience. Just remember that the A/C compressor isn't on during an autostop so the cabin temperature can change rather quickly even with the fan still blowing. To avoid premature autostarts with the A/C on, don't use AUTO in Climate Control when you know it's time for an autostop.

I'm surprised that you didn't see more ESS problems before you had the V53 Recall done. I had several ESS problems, or perceived problems, before I had V53 done but they all seem to have gone away, I think, after V53. For example, if I had the A/C on (not AUTO) before V53, it would autostart after just a few seconds. Now even with the A/C on I can stay in autostop for over a minute without autostarting, a noticeable difference.

In winter, especially, one of the pre-conditions is that the physical battery temperature has to be within a set temperature range. And the engine must be at an operating temperature before ESS will work. Because those things take longer in winter explains why it takes longer for ESS to go active in the winter.

In question 8, if your car is not a Hybrid it must be a gasser. Maybe I should have used different terminology.
 

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1) yes
2) no
3) no
4) no, never
5) ?, ?
6) no
7) yes, ?, yes
8) no, gas only
9) 2017, TL
10) 13,000, 6,500
Not wanting to back in and out of this survey I’ll leave my answers as they are and comment if need be once I build up the nerve to go back and forth in here.
All-in-all, I’m tickled with this ride. The ONLY problem it has that really bugs me is the radio locking up on me. I just today took it in for the recall and a tire rotation and oil change and showed the service rep the unresponsive radio. As usual, they did a software update and hoped for the best... we’ll see!
Thanks
 

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I’m back...
Question 5 question mark because I’ve had no ESS problems.
Same with question 7.
Hope this helps
 

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1. Yes
2. No
3. Sort of
4. No but it’s because I don’t have the dash on that screen. It did when ESS seemed to not be working and I put on the ESS info screen. No
5. No and no.
6. No. Didn’t have batteries replaced.
7. Yes. Yes. It was done correctly.
8. Yes. Gasser
9. 2018 Limited
10. 15113, 10.5K per year.

Recently (last 6 months?) the ESS was not shutting the engine down very often. When I put the dash display on stop-start, it said Stop Start Not Ready - Battery Charging. But voltage was good, so I suspected corroded battery terminals. Then I got the V53 recall, which involved cleaning the battery terminals so I wondered if that would fix the ESS. It did and the ESS works like new again.
 

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Piece of crap system

I bought used with 10k miles. Full warranty + extended. I mostly drive short distances to work , under 10 miles a day . It worked for a while and then stopped I guess because the battery was not charged enough. Occasionally when I take a road trip it will charge enough and start working, but for the most part I am glad it doesn't.
It was really only instituted so they could hit fleet mileage goals . Real world - not much gas saving and who wants the AC off in 95 degree 100% Florida humidity
 

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While at my Dealer yesterday, I learned that vehicles with ESS Batteries must have that battery removed / disconnected when Charging the main Battery. You can use a Boost Charger/Starter to "Start" the vehicle without disconnecting the ESS Battery but not "Charge" the main Battery. The Dealer told me that many times owners or service people try to just set the ESS Battery to the side rather than disconnecting it and often they ruin the ESS Battery Cables when taking this shortcut. One more reason I'm not at all sure I like having ESS.
 

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1. YES
2. NO
3. YES
4. NO, NEVER SHOWN, N/A
5. WORKS GREAT FOR ME, NO PROBLEMS
6. AUX battery replaced before I purchased at 10k miles. Not sure, previous owner didn't say.
7. YES (after purchased),don't know, N/A
8. YES, gasser
9. 2017 Limited
10. 16K, 5k per year previous owner / I do 20-30K per year.
 

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Discussion Starter #17
So far, it seems that the V53 Recall has solved all known ESS problems for all of the survey respondents that noticed ESS problems before the recall was done. Now we need to hear from some owners who didn't get all their ESS problems fixed with the V53 Recall.
 

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1) Yes
2) Yes
3) Yes
4) No, Yes, Yes
5) No, No
6) No, N/A
7) Yes, N/A, Yes
8) No, Gas
9)2018, Limited
10) 5500, Varies too much to state.
I also do not have any problems with this stupid tech since I have a device to keep it off ALL THE TIME.
 

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1) No
2) Yes
3) Yes
4) N/A, ESS been disabled amost every time I drive
5) N/A, ESS been disabled amost every time I drive
6) No
7) No
8) No
9) 2019, Touring L
10) 1600, 12k/year
 

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I'm too lazy to go through the questions ... but can tell you that the V53 recall did NOT fix the problems I was having with my van stalling when coming to a stop (apparently related to ESS). It stalled within a day or two of having the recall done. However, I took the van back about a week later and had the PCM updated (TSB 18-001-19) and that DID fix the problem. At least so far ... it has been about a month and we haven't had a single stall. And I'm not obsessing about shutting the ESS off any more, so it has had a lot more chances to stall than it would have in the past.
 
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