2017+ Chrysler Pacifica Minivan Forums banner

61 - 71 of 71 Posts

·
Registered
Joined
·
1,584 Posts
But the Kalifornia Proletariat surely have friends that will forward one. :cool:
 
  • Like
Reactions: NorthStar1

·
Registered
Joined
·
198 Posts
No no no, its not proletariat anymore, need to keep up with the terminology @Waldo .... now its the Oppressed... :D
 
  • Like
Reactions: NorthStar1

·
Registered
Joined
·
1 Posts
So our 2017 Pacifica just had the Start/stop warning light come on and I changed both batteries out BUT still getting the warning light. Do I have to reset something or is there a different issue that I am dealing with?
 

·
Registered
Joined
·
329 Posts
So our 2017 Pacifica just had the Start/stop warning light come on and I changed both batteries out BUT still getting the warning light. Do I have to reset something or is there a different issue that I am dealing with?
When mine went in for this problem they found the IBS and both batteries bad (yup all of that ) plus the PCM was flashed to 68372861AF (was 68372861AE) referencing RRT 19-043 (an update bulletin perhaps?). To get Chrysler to pay for the battery under warranty they also had to use come special computerized battery analyzer to prove the batteries were bad. They tried to get away with fixing the AUX battery but that lasted a few days and then I was back again to get the MAIN one replaced.
From another post, the IBS (Intelligent Battery Sensor) has to go through a relearn process which I have inserted below. I think they did this to mine because they kept the van for several days. Seems dumb to have a long relearn cycle when you just change batteries, doesn't it?
All in all, this system is a pain in the axle and all this to get a fraction of a mile per gallon in city driving? To top it off, from the problems I see in the forum, FCA oought to offer a fix and make it better because it is just not well implemented,in my opinion.

When the IBS is powered up for the first time or is powered after a power disconnection, it enters a “recalibration” phase, where the IBS must recognize the type of battery and its characteristics and state. In this phase the tolerances on the state functions (SOC, SOF) are greater than in normal working condition. When IBS is disconnected from the battery, the device loses its stored memory. When power is restored, the IBS starts a relearn process. Until the relearn process is complete, accurate battery state information is unavailable to other vehicle systems. The IBS relearn process requires five normal, operator initiated starts with at least four hours normal or more during cold ambient conditions of engine off time between each start. Usually, the process takes a few days of vehicle operation to complete. Remember, the relearn process is restarted every time power is reconnected to the IBS.
If the IBS is faulty it cannot be serviced, it must be replaced.
 

·
Registered
Joined
·
128 Posts
So our 2017 Pacifica just had the Start/stop warning light come on and I changed both batteries out BUT still getting the warning light. Do I have to reset something or is there a different issue that I am dealing with?
You still have the failure warning, or is it just indicating the ESS is not available?
 

·
Registered
Joined
·
4 Posts
So our 2017 Pacifica just had the Start/stop warning light come on and I changed both batteries out BUT still getting the warning light. Do I have to reset something or is there a different issue that I am dealing with?
What worked for me was installing the new batteries, turning on the car, turning it off again, disconnecting both batteries again, leaving them disconnected for about 30 minutes, then reconnecting them. THEN I took a long road trip and did NOT disable ESS at any time, so that it could... I dunno, learn how to do its job again? That's my goofy theory anyways.

After all this the ESS light is gone. Under certain conditions it will come back on, and those conditions seem to be: hot day, with headlights on, and A/C running, and/or DVD entertainment screens on. Basically if the voltage is down slightly from too many accessories, ESS will ping that it can't possibly do its job.
 

·
Registered
Joined
·
1 Posts
We don't have ESS, but just dealt with a failing battery. In our experience, when the car battery is dying, it acts like a petulant teenager, hurting all sorts of insults at you. That's perhaps an extreme analogy, but we had everything from "service shifter" to "reverse baking unavailable" to messages about the doors and kick sensors (and we don't even have kick sensors). It would even kill the lights on the shifter, leaving the selected gear dim, making it a bit of a guessing game to shift from memory and hope you were not in drive when you wanted reverse - use the information center screen to help in this scenario.

Replacing the battery is easy, or as easy as anything is to do under the hood (where one has to remove three components or cross braces to just get at something!) As we are out of warranty, we got ours at Costco and it took about 30 minutes or less to do.
Can you tell me how you got the light to turn off after battery install? Since my warranty is up I had local shop repair it and they said they couldnt clear it because it was restricted to mopar access only!!
 

·
Registered
2018 Chrysler Pacifica Touring L (built 9/2017)
Joined
·
305 Posts
Can you tell me how you got the light to turn off after battery install? Since my warranty is up I had local shop repair it and they said they couldnt clear it because it was restricted to mopar access only!!
Just keep driving the van. The shop misinformed you. The code can be erased with a proper diagnostic tool, but will reoccur until the relearn process is complete. Read the text below from post #64 shared by Hilltopper.

When the IBS is powered up for the first time or is powered after a power disconnection, it enters a “recalibration” phase, where the IBS must recognize the type of battery and its characteristics and state. In this phase the tolerances on the state functions (SOC, SOF) are greater than in normal working condition. When IBS is disconnected from the battery, the device loses its stored memory. When power is restored, the IBS starts a relearn process. Until the relearn process is complete, accurate battery state information is unavailable to other vehicle systems. The IBS relearn process requires five normal, operator initiated starts with at least four hours normal or more during cold ambient conditions of engine off time between each start. Usually, the process takes a few days of vehicle operation to complete. Remember, the relearn process is restarted every time power is reconnected to the IBS.
If the IBS is faulty it cannot be serviced, it must be replaced.
 

·
Registered
Joined
·
1 Posts
I have a 2017 Pacifica with 104,000 miles and just got the start stop disabled error. Swapped out the main battery with no change. Then changed the aux battery the next day and that fixed the problem. Thanks for everyone’s comments to help me fix this issue.
 

·
Registered
Joined
·
259 Posts
I have a 2017 Pacifica with 104,000 miles and just got the start stop disabled error. Swapped out the main battery with no change. Then changed the aux battery the next day and that fixed the problem. Thanks for everyone’s comments to help me fix this issue.
You received the ESS error because your Aux battery voltage is low.

Did you get your Aux battery load tested when you replaced your main battery?

I hope you did. If not:

Both batteries are electrically connected when the van is off so by replacing the main battery it is now charging the failing Aux battery which is draining the main batteries capacity and eventually your new main battery will die as well.

Both batteries are AGM type which don't like to be fully drained, doing so reduces their life.
 

·
Registered
Joined
·
1 Posts
Hi micc[email protected] and sethmeisterg,
We understand your concerns. We'd be happy to connect you with a Case Specialist if you plan to continue working with your dealers to address this. If so, please send us a private message.

Lydia
Chrysler Social Care Specialist
I sent a message to ChryslerCares last night asking for help.

I bought my Pacifica at the end of July 2017. I also bought the Mopar Max Care warranty. My original 36 months/36,000 mile warranty ended less than 2 months ago, though it has less than 25,000 miles on it.

Last week, my Pacifica started having the indicator "service stop/start system". I went to the dealership, who told me my original 36 month warranty would've replaced the battery had it not expired 2 months ago. Dealership also told me my Max Care warranty does not replace the battery. Dealership told me it would cost around $500.

I asked ChryslerCares for help to cover the cost of replacing the battery, either with the original warranty or Max Care warranty.
 
61 - 71 of 71 Posts
Top