I definitely work slow. I think I’m about 2 1/2 years into the swap at this point. I really just have to hook up the clutch hydraulics, connect the linkage on the t-case, and add some fluids. I keep getting busy on projects around the house and fixing daily drivers, not to mention family time and extra curriculars with the kids. I’ll get around to finishing the nv4500 swap soon though. What did you do for t-case linkage/shifter location? I’m considering switching to cable shift instead of the stock linkage.
@@TorqueWagon I ended up running a np205 cast iron t case so i bought the nv4500 shifter kit from advance adapters and just extended my shifter rods 1 1/2 inches to get it back to the factory location. I also added andother point to attach the braket to the trans because i fond it too flimbsy.
This saved my bacon!!! My husband hates start/stop and refuses to even drive my car so we ignored it when the light came on 2 months ago. This morning, van wouldn't start. Then the brake locked up( found a msg board that said this was from pressing break too many times without engine starting) and the dashboard message center told me there was a problem with the electrical stability control and anti-lock brake system. I found your video, followed the instructions, and FIXED my van MYSELF for about $100. It was just the auxiliary battery. Brake systems were fine once the new battery was in place. My hubby is working a double shift so I didn't even "inform" him I was having car trouble. Thank you so much!
These are exactly the problem I had. I was dreading my trip to the dealership I had scheduled in an hour. Cancelled it and saved me some money. Other than the aux battery cost.
This video gave much more thorough and comprehensive instructions for replacing the Chrysler Pacific Auxiliary Battery than any other video I watched on the subject. The comments were helpful as well. I ended up buying from AutoZone because of the price and the 3-year warranty. I couldn't find a single E5 bit (only sold in sets where I shopped) for the post swap-out, and my 4mm socket was too shallow for a good grip on the posts. I ended up threading a nut onto the post once the battery was on my workbench, then using small vise grips to grasp the non-threaded portion of the post, I successfully made the swap. My thought about threading the nut onto the post before using the vise grips was that if I damaged the threads in the process, I could re-shape the threads by removing the nut. I installed the replacement battery, hooked it up, reconnected the main battery ground, and started the car. The light was gone. The first time I took it out for a drive, the auto-stop feature worked as designed. Thanks for the great instructions.
Thanks for the help. I mainly work on heavy trucks and farm equipment. My girlfriend's van started this yesterday morning. I never knew it had 2 batteries. I tested both batteries. The auxiliary battery failed. I replaced it, all good now. The hardest part of the job was the clowns at autozone selling me the wrong battery. One tip I would add, remove the little studs before removing the battery. It comes out easier.
Thank you so much! I don’t have that annoying illuminated light on my dash anymore. Woke up to take my husband to work and battery was dead. Purchased the auxiliary and installed it step by step like you did and she’s fine now! THANKS AGAIN! I saved a ton of money too!
I just completed this very quick repair thanks to your video! The recommendations for the exact tools needed were spot on and saved a lot of time. I literally spent more time watching the video a couple of times than actually executing your very accurate script. Not to mention the savings from not having the dealership do it at 4x times the cost of the actual battery. Thank you!!!!
Great video for anyone with a small amount of knowledge and a few tools. THANKS - I'm 68 and this seems to have fixed my problem. You were right - the bolt holding the strap is tough to get out. If I could find the engineer that decided a screw that long was necessary, I would make him take it out and back in with a ratchet. I bought a Duralast battery because it was about the same price as others, and came with a 3-year warranty.
Such an informative video! My battery died on a 2019 Chrysler Pacifica. I was searching for a video on how to change the main battery and ran across this video regarding the auxiliary battery. For some time now, my start/stop feature hasn’t worked and I just ignored it. Now - I see that it was the root cause for my main battery dying earlier than it should. If it wasn’t for this video, I would’ve replaced the main battery and ended up having it die early again! Thanks so much for taking the time to post your lessons learned so others don’t end up fixing the symptom and not the root cause!
Just FYI, I had to replace the main battery about 5 months after the aux, so it’s probably a good idea to just do them both at the same time if that’s an option for you.
Just had this issue on our 2020 Pacifica, called the dealership because I had no clue what was going on. They were quoting around $800 to look at and repair a suspected Aux battery issue. 1 trip to NAPA and 10mins later and this was corrected for less than $150 - Thanks!
That’s amazing. There have been a lot of comments just like this for this video and that makes me so happy. I’m glad you were able to do this yourself and save some $$$.
First, thank you so much for posting this informative and encouraging video. Second, you don't need any of the fancy tools shown here to actually do the replacement. I used a 10mm socket, a 10mm wrench, a screwdriver socket holder, a pair of locking vise grips and a little gorilla tape. The vise grips locking to the handle of the screwdriver gave me the needed length. The gorilla tape wrapped around the battery posts allowed me to unscrew them from the bad battery. My way took longer due to more hands on but basically completed within 30 minutes. Thank you for giving us the courage to do this job 🛠️ !! 👏
Just getting around to researching the Pacifica because my Company will be getting 2024 Chrysler Voyagers as fleet vehicles. Nice to hear from someone who obviously knows what he's talking about. Thanks for the video.
This video covers it nicely. WARNING though if you go to advance auto parts: the battery they had in their system was the wrong one. The posts were different, and I had to take the one they gave me back. Luckily, they had one in the back that was not listed in their system as a fit, but it was the right battery. The problem is that there are batteries with the same geometry, but you need the terminal posts like on the original battery so that the positive cable fits.
Hi there, thank you for posting this and keeping it up. Just changed my wife's van's aux battery myself with your help and avoided calling a tow truck. Couldn't get the main battery negative terminal off, but the van started right up again after the battery replacement. 👍🏻
Outstanding video. Car wouldn't start and looks like it was just the Aux battery. Perfect explanations on how to fix. Thank you! The only thing that concerned me was that the Aux battery immediately started sparking when i reconnected the terminals to the new battery. Couldn't figure out how to stop that from happening. Just held my breath and screwed it in. Still alive, so that's good.
I just bought my wife a preowned 2021 Chrysler Pacifica touring L last weekend at the dealership & it’s super nice leather & loaded but the start/stop service light was on in the dash when we got it and I didn’t know what it was until I looked it up and then I called the dealership and they were like oh yeah, we ran a diagnostics on it when we got it as a trade-in a couple of weeks ago and they forgot to replace the start/stop battery so since it’s under warranty we’re taking it back up there next week and they’re going to replace it but we haven’t got a chance to use this feature yet. I’ve heard a lot of people say they like it and a lot of people say they don’t so we’ll see. Also, I heard that when the auxiliary battery goes bad like you said it will cause the big battery to go bad or drain it but we’ve only had it a week and I haven’t had any issues with the main battery so I’m not sure about that.
Thank you makes total sense my 2017 pacifica didnt start this morning and my start stop wasnt working for several months why didnt the dealership tell me they wanted to keep my van for a week and a loaner for 50 a day.
I have a 2020 Pacifica and the same thing is happening with my vehicle. The "auto start/stop light keeps coming on and it doesn't work. My main battery seems fine but my remote start is not working correctly especially when I need it in the cold weather. I'm a handicapped driver. I drive right from my wheelchair. I just had my van in for a checkup and everything is fine. My warranty on the battery was 3yr or 36,000 miles. I am passed my warranty by 6 months. The technician told me I'm better doing exactly what you're showing in your video myself as they would charge me like $1,000. Crazy! Where did you get your aux battery and how much did it cost you? GREAT video and thanks for the education.. Nick Ps I can't stand that start/stop feature anyway as I turn it off all the time. What an afterthought that was to be eco-friendly. 😊
Thank you! Had the same exact problem w/ inexplicable battery drain on a 5 month old main battery causing repeated incidents of a dead battery. Your video saved me a bunch of headache trying to figure out why the positive lead wouldn't come off. Removed the securing strap and the main battery positive lead apparatus and viola!. Thanks again. More than a little annoyed at the dealership not telling me when I took it in for the start stop service bulletin and they tried to charge me $175 for a diagnostic cuz start/stop still nonfunctional. Thanks again
Ours didnt start because of this. It has been replaced twice. This time it wasnt under warranty so it ran $300, this video will be very helpful in the future.
Great video. Many thanks. Your instructions worked perfectly (including swapping the battery terminals). Just a tip for everyone...remember to hold the harness bolt firmly when finishing up... if it slips... it falls into the base of the radiator fan-housing and disappears. :)
Thank you. Checked Aux battery at autozone and it was fine just needed charging. Took the negative lead off main battery for 15 minutes while removing aux battery. After putting aux battery back in, no ESS error and stop/start working. (Although I'll never use it!). Thanks again!
Thank you so much for posting this! A few years back I was having start stop issues like you, I ignored it since I hate the feature myself. It finally drained and took out my main battery, threw out many error codes and my car stopped running while I was driving. Turned out it also took out my alternator with it 😮. I guess these aux batteries don't last 2 or 3 years because I'm starting to have the same exact issues now (start stop service message and angry red light). I'm getting the tools needed and a new aux battery today to fix it myself before more repairs are needed...I can do this!
Very good video. I replaced the aux battery in my 2018 Pacifica and it starts now with no problems or error lights. Purchased a replacement from Menards ($75) which was about 1/3rd the price of a dealer battery. I did have to modify the positive connector a bit.
Thanks, Mr. TorqueWagon. I'm having the same issue with the same car in 2019. Now I know where to start. The auto-start feature comes in handy on cold days so I can live with stop/start. Thanks again!
I have a 2019 Pacifica and I'm going on my 2nd auxiliary and main battery. The dealership won't change just one of the 2 because the main battery is drained because it works harder and now needs to be replaced. I've talked to many handy car guys and they concur with the evil dealerships. My experience with a new auxiliary battery needs to charge before it starts working, I experienced this when it was brand new. as well it's normal. Thanks for the informative video.
Good video. I didn't see a mention but you only want to use a charger that has a setting for an AGM battery, they charge in a different manner than a standard battery.
Great video, thanks for posting! Only comment is that at 6:15 you mention using an E6 bit. I found that an E5 bit is better fit. I had to go out and buy one, brought the battery/posts to check I got the right bit, and found that E5 was exact fit. I had tried using a pair of pliers to take off post, but they're screwed in pretty tight and I felt like I was stripping the post, so I highly recommend using the torx socket as your video recommends. On price questions in other comments, I paid $99 for a Duralast Platinum AGM AUX114 battery at AutoZone; there's an additional $22 core charge that is refundable when I bring back old battery. Thanks again!
I thought the E6 may not have been the best fit, but it worked for me and I didn’t have anything smaller. Thanks for clarifying that the E5 is a more exact fit!
Thank you for this video. 50k miles on our 2019 Touring L still with the original batteries. Alarm came up and going into winter I thought it was the main batt. Thanks to this video I got the AUX14 swapped. AUX14 are hard to find now at the local auto supplies. Amazon had an ACDelco. I too used an 4mm socket on the terminals. I did not have a long enough extension for the 10mm socket which made that strap the hardest part. Back together now. Followed instructions so the alarm is gone! I don’t mind the auto start. Why burn gas when not going anywhere? And it kicks on quick enough at the green lights. Thanks again!
I changed my auxiliary battery and kept getting the same message. I finally found online that the van requires 5 restarts each must be 4 hours apart, apparently sometimes it takes that long for the computer to pick up on the battery change. After the 5th restart the warning did go away
Very helpful video! We are out of town and replacing it when we get in town today. We are expecting to see a crack in our battery as well. My wife says that she's been noticing a smell after the van has been running warm. I will update my comment after the work is complete.
Have had our Pacifica since 2019. It's a 2017 and we both despise the stop/ start feature. But this is the second time we are replacing this auxiliary battery
Thank you so much for putting this video out. It was very informative direct into the point and edited very well. Thank you for taking the time to help people like myself that struggle with working with cars. This might have been simple for most people but without your video I definitely would have struggled or overpaid at the dealership thank you and have a good day
Thanks for this informative video, was going to use this if I had to replace the auxiliary battery in my 2017 Pacifica, I had the shop replace it once back in May. The light came again just a few weeks ago, I’m assuming it’s the battery again so I’m having the dealership warranty the battery out. I was going to use this video in case they tried to charge me to change the battery I was going to do it myself. Will save this video for future reference. Has the light came back one since you replaced your auxiliary battery?
Oh My God! Thanks for making that video. I’m having the identical issue with my van. I’ll go ahead and replace the battery and see if it fixes everything. This will save me a trip to the dealership. You Da Man!!
Awesome! I am having the same issue. On a side note could you post a picture of the positive side of the main battery. I think I am missing a couple of the nuts on A D and E.
THANKS SO MUCH!!! This worked on our 2020 Chrysler voyager as well. After the swap, our ( @! ) Warring Light on the dash went out. Just like in your first test, our start/stop did also not work right away. However the start/stop did start working on its own (without any additional programming/code clearing) after driving about 8-10 miles. You definitely earned a 👍 for this video and a new subscriber.
The video is very helpful. My kids left a door open and drained the battery. We had replaced the aux battery about 18 months ago and the van is starting fine. However, the start /stop feature stopped working and we have the error message. Can I simply put a battery charger on the aux battery rather than replacing it? My wife's van is a 2019 pacifica-Thank you!
Hey, I just wanted to tell you thanks for how easy your video was to help do this! I did it about 2-3 months ago. Everything was fine until about a week ago that the SAME warning light came on AGAIN. Any idea why this would be? Note, I did not replace the regular battery, only the auxillary. Thanks for any suggestions you might have. Scott McConnell Louisville KY
I had to replace the main battery a few months later so that may fix your issue as well. I haven’t had any issues at all with the warning light since I replaced the main battery.
This has become a well known problem with the Pacifica, and Chrysler has no fix for it. The aux battery failure associated with the start stop feature will eventually become an annual replacement of that battery. We had the same issue with ours last summer, replaced the aux and main battery. On the 4th of July (same month last year too) our Pacifica completely shut down at an intersection. We once again have the yellow warning light on the dash indicating start stop failure. We bought ours new in 2018, and it only has 50,000 miles on it. Even with lower mileage it’s developing numerous other electrical issues reported by other owners. Apparently the Pacifica’s are notorious for electrical problems that all seem to drain either the main battery or aux.., and both batteries with the start stop failure.
This video really helped me to change my auxiliary battery that was preventing our Pacifica from starting and shifting from park! After replacing the auxiliary battery, I began wondering if I should replace the main battery as well. Anyone have any insight on this?
Would love to find a video showing how you get your socket back if you drop it down into the well. There's a splash shield underneath on at least the 2020 and from what little I can see on my back, no way to get into there and get it back!
Hate Auto Start/Stop? This worked for me. Disconnect the Aux Battery Negative Terminal and insulate and secure the lead in a safe place. The defective battery will no longer suck down the main battery. The Start/Stop will not function. The Fult light on the Dashboard will stay on. Your 2 options are: Ignore it. Or cover with electrical tape.
I had to do this today due to the aux battery causing the transmission to slip at times. (The dealer told me that the aux battery powers parts of the transmission)
I changed both batteries yesterday. Took surprisingly little time. However, I noticed after checking later that when I turned the vehicle off, there was a sewing machine -like sound coming from under the dash board. I don't remember it doing that previously? Reviewed Pacifica forums and looks like some A/C door or switch? Why would this have been affected? Is there a system reset function that I need to perform in order to get everything working properly again? Notable that the radio stations were all still programmed, and it remembered Bluetooth connections, etc..
Ok mine had the same issue and they fixed the switch. However we are our 2nd main battery, and 3rd aux. getting an error for the 4th time. And I put the aux battery in on the 3rd time. i used a high quality interstate aux battery. Our car is a 2018 pacifica and we are also having hard shifts. So thanks whoever mentioned the aux does something for the transmission. We are also having weird electronic issues. Touch screen acting up, rear camera acting weird. I did find the box on the main battery the bolt that cranks the clamp on the positive terminal is broke from the dealer. Gonna throw the battery tender on as well to get it alll back up. Chrysler needs sued or recalled on this. What a shame. Great van except the battery issues and bullShiz.
Thank you so much for this and the video on how to replace the main battery! After I hooked up both a series of 3 beeps keeps sounding seemingly from the dashboard speakers every few seconds. I haven't been able to figure out what is causing this or how to stop it. Any ideas? Again, thanks for the videos!
You might try disconnecting the negative battery cable again for about 15 minutes and make sure all the colored connections on the aux harness are in the correct places. Thanks for watching.
I have the light on the dash with the an and circle around it with an exclamation mark. Battery seems fine what would you recommend is the problem. Or what to do first anyways
You may want to check the voltage on the aux battery with a multimeter, or take the car to an auto parts store where they will test the battery for free. In my experience, when the aux battery starts to go bad, it won’t be long before it drains the main battery and leaves you stranded somewhere.
Looks like it's been about 7 months since your battery replacement. Everything ok? Any issues? I have a 2017 pacifica (bought used in 18). I'm pretty sure I'm going to replace both batteries to be sure. Is that fairly easy? Which should I replace first?
I actually had to replace the main battery about 5 months later and should have a video for that out soon. If you don’t mind spending the money all at once, it’s probably best to replace them at the same time, but that’s probably going to cost about $350. I’m sure a dealer would want $1k or more to replace both batteries, so $350 doesn’t sound too bad when you think of it that way.
@@TorqueWagon The start stop system seems to chew through AUX batteries way too fast and then starts to shorten the lifespan of the main Pacifica battery. I hope Chrysler can do a recall/fix on this sometime.
@@Sophiasgamings Same this year. I reached out to Chrysler customer care and they are telling me to see my dealer. I will be making an appointment. Something is not right.
Thank you for the video. I hate the auto start/stop feature. Can I just not replace the auxillary battery and so I won't have this auto start/stop feature? Will there be any concerns for the main battery if my aux battery is dead?
I’m not 100% sure but I think the aux battery will draw power from the main battery and shorten its life if you let it go too long without changing it when it goes bad. I ended up having to replace my main battery about five months after the aux battery. I had the start/stop light on for over a year before I changed the aux battery and I’m sure that didn’t help my primary battery any.
If you disconnect that other connector on the negative battery terminal (main battery) it will disable the feature. No need to ever press the button. You will have a light on the dash, but I haven't notices any other effects.
I have not had to replace my start/stop battery since leaving it disconnected. And it is a more pleasant driving experience. Ignore the waring indicator on the dash board.
Hey! How to you all feel about the auto start/stop feature on newer cars. I hate it, but luckily the Pacifica has a button on the dash to turn it off.
When are you going to finish the nv4500? i feel like ive been waiting years
I completed my own swap in that time.
I definitely work slow. I think I’m about 2 1/2 years into the swap at this point. I really just have to hook up the clutch hydraulics, connect the linkage on the t-case, and add some fluids. I keep getting busy on projects around the house and fixing daily drivers, not to mention family time and extra curriculars with the kids. I’ll get around to finishing the nv4500 swap soon though.
What did you do for t-case linkage/shifter location? I’m considering switching to cable shift instead of the stock linkage.
@@TorqueWagon I ended up running a np205 cast iron t case so i bought the nv4500 shifter kit from advance adapters and just extended my shifter rods 1 1/2 inches to get it back to the factory location.
I also added andother point to attach the braket to the trans because i fond it too flimbsy.
We had a recall for a start/stop issue,
it apparently drained our batteries
It's a shitty feature that doesnt help fuel mileage in the least
I just changed my wife's 2020 Chrysler Pacifica's aux battery in under 10 min thanks to your video. Used a 5/32 socket on the posts. 👍
This saved my bacon!!! My husband hates start/stop and refuses to even drive my car so we ignored it when the light came on 2 months ago. This morning, van wouldn't start. Then the brake locked up( found a msg board that said this was from pressing break too many times without engine starting) and the dashboard message center told me there was a problem with the electrical stability control and anti-lock brake system. I found your video, followed the instructions, and FIXED my van MYSELF for about $100. It was just the auxiliary battery. Brake systems were fine once the new battery was in place. My hubby is working a double shift so I didn't even "inform" him I was having car trouble. Thank you so much!
That’s amazing! I’m so glad the video helped!
You're a very independent lady‼️ Good for you, hopefully he believes you once he notices you fixed it! 😉
These are exactly the problem I had. I was dreading my trip to the dealership I had scheduled in an hour. Cancelled it and saved me some money. Other than the aux battery cost.
This video gave much more thorough and comprehensive instructions for replacing the Chrysler Pacific Auxiliary Battery than any other video I watched on the subject. The comments were helpful as well. I ended up buying from AutoZone because of the price and the 3-year warranty. I couldn't find a single E5 bit (only sold in sets where I shopped) for the post swap-out, and my 4mm socket was too shallow for a good grip on the posts. I ended up threading a nut onto the post once the battery was on my workbench, then using small vise grips to grasp the non-threaded portion of the post, I successfully made the swap. My thought about threading the nut onto the post before using the vise grips was that if I damaged the threads in the process, I could re-shape the threads by removing the nut. I installed the replacement battery, hooked it up, reconnected the main battery ground, and started the car. The light was gone. The first time I took it out for a drive, the auto-stop feature worked as designed. Thanks for the great instructions.
Thanks for the help. I mainly work on heavy trucks and farm equipment. My girlfriend's van started this yesterday morning. I never knew it had 2 batteries. I tested both batteries. The auxiliary battery failed. I replaced it, all good now. The hardest part of the job was the clowns at autozone selling me the wrong battery.
One tip I would add, remove the little studs before removing the battery. It comes out easier.
That is a good tip. Thanks!
Thank you so much! I don’t have that annoying illuminated light on my dash anymore. Woke up to take my husband to work and battery was dead. Purchased the auxiliary and installed it step by step like you did and she’s fine now! THANKS AGAIN! I saved a ton of money too!
I have a 2020 Pacifica and I used a 5/32 to get the posts out of the battery, not an E6 and it worked very well.
I just completed this very quick repair thanks to your video! The recommendations for the exact tools needed were spot on and saved a lot of time. I literally spent more time watching the video a couple of times than actually executing your very accurate script.
Not to mention the savings from not having the dealership do it at 4x times the cost of the actual battery.
Thank you!!!!
I love to hear comments like this! Glad the video was helpful!
My issue is, I did those steps and still not wanting to work. Still gives me same error.
Thanks dealerships service is criminal!
Excellent and accurate video, easily followed taking about 15 minutes. Start/stop light and alert message is gone. Many thanks!
Great video for anyone with a small amount of knowledge and a few tools. THANKS - I'm 68 and this seems to have fixed my problem. You were right - the bolt holding the strap is tough to get out. If I could find the engineer that decided a screw that long was necessary, I would make him take it out and back in with a ratchet. I bought a Duralast battery because it was about the same price as others, and came with a 3-year warranty.
Good work
Such an informative video! My battery died on a 2019 Chrysler Pacifica. I was searching for a video on how to change the main battery and ran across this video regarding the auxiliary battery. For some time now, my start/stop feature hasn’t worked and I just ignored it. Now - I see that it was the root cause for my main battery dying earlier than it should. If it wasn’t for this video, I would’ve replaced the main battery and ended up having it die early again! Thanks so much for taking the time to post your lessons learned so others don’t end up fixing the symptom and not the root cause!
Oh and also - do you have a video on how to replace the main battery?
Just FYI, I had to replace the main battery about 5 months after the aux, so it’s probably a good idea to just do them both at the same time if that’s an option for you.
Just had this issue on our 2020 Pacifica, called the dealership because I had no clue what was going on. They were quoting around $800 to look at and repair a suspected Aux battery issue.
1 trip to NAPA and 10mins later and this was corrected for less than $150 - Thanks!
That’s amazing. There have been a lot of comments just like this for this video and that makes me so happy. I’m glad you were able to do this yourself and save some $$$.
First, thank you so much for posting this informative and encouraging video.
Second, you don't need any of the fancy tools shown here to actually do the replacement. I used a 10mm socket, a 10mm wrench, a screwdriver socket holder, a pair of locking vise grips and a little gorilla tape. The vise grips locking to the handle of the screwdriver gave me the needed length. The gorilla tape wrapped around the battery posts allowed me to unscrew them from the bad battery. My way took longer due to more hands on but basically completed within 30 minutes.
Thank you for giving us the courage to do this job 🛠️ !! 👏
4mm socket to extract battery posts
Just getting around to researching the Pacifica because my Company will be getting 2024 Chrysler Voyagers as fleet vehicles. Nice to hear from someone who obviously knows what he's talking about. Thanks for the video.
This video covers it nicely.
WARNING though if you go to advance auto parts: the battery they had in their system was the wrong one. The posts were different, and I had to take the one they gave me back. Luckily, they had one in the back that was not listed in their system as a fit, but it was the right battery. The problem is that there are batteries with the same geometry, but you need the terminal posts like on the original battery so that the positive cable fits.
Hi there, thank you for posting this and keeping it up. Just changed my wife's van's aux battery myself with your help and avoided calling a tow truck. Couldn't get the main battery negative terminal off, but the van started right up again after the battery replacement. 👍🏻
Outstanding video. Car wouldn't start and looks like it was just the Aux battery. Perfect explanations on how to fix. Thank you! The only thing that concerned me was that the Aux battery immediately started sparking when i reconnected the terminals to the new battery. Couldn't figure out how to stop that from happening. Just held my breath and screwed it in. Still alive, so that's good.
If you have the negative cable disconnected from the main battery, that should eliminate the chance of sparking.
I just bought my wife a preowned 2021 Chrysler Pacifica touring L last weekend at the dealership & it’s super nice leather & loaded but the start/stop service light was on in the dash when we got it and I didn’t know what it was until I looked it up and then I called the dealership and they were like oh yeah, we ran a diagnostics on it when we got it as a trade-in a couple of weeks ago and they forgot to replace the start/stop battery so since it’s under warranty we’re taking it back up there next week and they’re going to replace it but we haven’t got a chance to use this feature yet. I’ve heard a lot of people say they like it and a lot of people say they don’t so we’ll see. Also, I heard that when the auxiliary battery goes bad like you said it will cause the big battery to go bad or drain it but we’ve only had it a week and I haven’t had any issues with the main battery so I’m not sure about that.
Thank you makes total sense my 2017 pacifica didnt start this morning and my start stop wasnt working for several months why didnt the dealership tell me they wanted to keep my van for a week and a loaner for 50 a day.
I have a 2020 Pacifica and the same thing is happening with my vehicle. The "auto start/stop light keeps coming on and it doesn't work. My main battery seems fine but my remote start is not working correctly especially when I need it in the cold weather. I'm a handicapped driver. I drive right from my wheelchair. I just had my van in for a checkup and everything is fine. My warranty on the battery was 3yr or 36,000 miles. I am passed my warranty by 6 months. The technician told me I'm better doing exactly what you're showing in your video myself as they would charge me like $1,000. Crazy!
Where did you get your aux battery and how much did it cost you?
GREAT video and thanks for the education..
Nick
Ps I can't stand that start/stop feature anyway as I turn it off all the time. What an afterthought that was to be eco-friendly. 😊
I bought a 2020 Pacifica 4 weeks ago. I had no idea the stop/start system had a second battery. I have a lot to learn about my new-to-me van
Add me to that list
Great instructions thanks! FYI- a 4mm socket can get the old terminal posts off the old aux battery.
Thanks for this info!
Came to say the same thing. 4mm for the win!
Thank you! Had the same exact problem w/ inexplicable battery drain on a 5 month old main battery causing repeated incidents of a dead battery. Your video saved me a bunch of headache trying to figure out why the positive lead wouldn't come off. Removed the securing strap and the main battery positive lead apparatus and viola!. Thanks again. More than a little annoyed at the dealership not telling me when I took it in for the start stop service bulletin and they tried to charge me $175 for a diagnostic cuz start/stop still nonfunctional. Thanks again
Thank you for saving me from a trip to the dealership!!!! We would have never figured it out without this video.
Love the garage building in the background. Thanks for the update on how to change the auxiliary battery.
Thank you so much for posting this video, this was exactly what my 2019 was doing, we replaced AUX battery and all is running smooth again.
Ours didnt start because of this. It has been replaced twice. This time it wasnt under warranty so it ran $300, this video will be very helpful in the future.
Great video. Many thanks. Your instructions worked perfectly (including swapping the battery terminals). Just a tip for everyone...remember to hold the harness bolt firmly when finishing up... if it slips... it falls into the base of the radiator fan-housing and disappears. :)
Thank you.
Checked Aux battery at autozone and it was fine just needed charging. Took the negative lead off main battery for 15 minutes while removing aux battery. After putting aux battery back in, no ESS error and stop/start working. (Although I'll never use it!). Thanks again!
Thank you so much for posting this! A few years back I was having start stop issues like you, I ignored it since I hate the feature myself. It finally drained and took out my main battery, threw out many error codes and my car stopped running while I was driving. Turned out it also took out my alternator with it 😮.
I guess these aux batteries don't last 2 or 3 years because I'm starting to have the same exact issues now (start stop service message and angry red light). I'm getting the tools needed and a new aux battery today to fix it myself before more repairs are needed...I can do this!
Thanks for this great video! I swapped out the auxiliary battery on my '18 and it was a very easy job with your instructions.
Very good video. I replaced the aux battery in my 2018 Pacifica and it starts now with no problems or error lights. Purchased a replacement from Menards ($75) which was about 1/3rd the price of a dealer battery. I did have to modify the positive connector a bit.
Great Video! Thanks! Yes, you can remove and reinstall the battery posts with a 4mm socket.
Thanks, Mr. TorqueWagon. I'm having the same issue with the same car in 2019. Now I know where to start. The auto-start feature comes in handy on cold days so I can live with stop/start. Thanks again!
Good VID and info.
Am into like problems.
Hoping it works.
Used this to change my wife’s van’s aux battery. Thank you!
Thank you for very good instructions. Huge help. I saved on labor cost! I didn’t have an E6, so I used pliers with teeth.
4mm socket should fit the posts, it did for me
Thank you so much for this video! You are a lifesaver man!!! Turns out this is exactly what was wrong with my wife's Pacifica!
I have a 2019 Pacifica and I'm going on my 2nd auxiliary and main battery. The dealership won't change just one of the 2 because the main battery is drained because it works harder and now needs to be replaced. I've talked to many handy car guys and they concur with the evil dealerships. My experience with a new auxiliary battery needs to charge before it starts working, I experienced this when it was brand new. as well it's normal. Thanks for the informative video.
Good video. I didn't see a mention but you only want to use a charger that has a setting for an AGM battery, they charge in a different manner than a standard battery.
Great video, thanks for posting! Only comment is that at 6:15 you mention using an E6 bit. I found that an E5 bit is better fit. I had to go out and buy one, brought the battery/posts to check I got the right bit, and found that E5 was exact fit. I had tried using a pair of pliers to take off post, but they're screwed in pretty tight and I felt like I was stripping the post, so I highly recommend using the torx socket as your video recommends. On price questions in other comments, I paid $99 for a Duralast Platinum AGM AUX114 battery at AutoZone; there's an additional $22 core charge that is refundable when I bring back old battery. Thanks again!
I thought the E6 may not have been the best fit, but it worked for me and I didn’t have anything smaller. Thanks for clarifying that the E5 is a more exact fit!
4mm socket worked on the battery posts
You are a hero my friend! Thanks for making this video which helped save us money. Wish I could buy you a beer!
Thank you for this video. 50k miles on our 2019 Touring L still with the original batteries. Alarm came up and going into winter I thought it was the main batt. Thanks to this video I got the AUX14 swapped. AUX14 are hard to find now at the local auto supplies. Amazon had an ACDelco.
I too used an 4mm socket on the terminals. I did not have a long enough extension for the 10mm socket which made that strap the hardest part.
Back together now. Followed instructions so the alarm is gone! I don’t mind the auto start. Why burn gas when not going anywhere? And it kicks on quick enough at the green lights. Thanks again!
I changed my auxiliary battery and kept getting the same message. I finally found online that the van requires 5 restarts each must be 4 hours apart, apparently sometimes it takes that long for the computer to pick up on the battery change. After the 5th restart the warning did go away
What do you mean by restart
Very helpful video!
We are out of town and replacing it when we get in town today. We are expecting to see a crack in our battery as well. My wife says that she's been noticing a smell after the van has been running warm. I will update my comment after the work is complete.
Any change in the smell?
@@callmesteam
We have not smelled it however the battery was not cracked.
I was able to use a 4mm socket to remove the battery posts and install on the new battery.
My 2018 actually was an E5 for the battery studs, but thanks for walking us through it. I had no idea where the stinking AUX battery even was.
Have had our Pacifica since 2019. It's a 2017 and we both despise the stop/ start feature. But this is the second time we are replacing this auxiliary battery
Thank you for this! Wife’s Van now fixed!
Thanks for the tip. It helped a lot. Also, I used the E5 instead of the E6.
Hey thanks for the battery information on the Chrysler Pacifica. Everything is great, saved a bunch of cash and time not taking to the Dealer.
Very nice explanation and information,I think it always recommended to remplace both baterries(main and Aux)blessings
So true
Thank you so much for putting this video out. It was very informative direct into the point and edited very well. Thank you for taking the time to help people like myself that struggle with working with cars. This might have been simple for most people but without your video I definitely would have struggled or overpaid at the dealership thank you and have a good day
OMG you are amazing and you win the internet! Solved my car problems and I'm sure a ton of money had I brought it to the dealer
Great video. I was able to swap my battery with your instructions very easy
Thanks for this informative video, was going to use this if I had to replace the auxiliary battery in my 2017 Pacifica, I had the shop replace it once back in May. The light came again just a few weeks ago, I’m assuming it’s the battery again so I’m having the dealership warranty the battery out. I was going to use this video in case they tried to charge me to change the battery I was going to do it myself. Will save this video for future reference. Has the light came back one since you replaced your auxiliary battery?
It freakin’ worked!!! Thanks for the vid! My van was out for 5 months!!!
Helped me too this this week and saved me a lot of money! Thank you!
Great video, very well explained ! I really enjoyed watching it!!!... will do the change today!!! cheers from Monterrey, Mexico!!
Oh My God! Thanks for making that video. I’m having the identical issue with my van. I’ll go ahead and replace the battery and see if it fixes everything. This will save me a trip to the dealership. You Da Man!!
Awesome! I am having the same issue. On a side note could you post a picture of the positive side of the main battery. I think I am missing a couple of the nuts on A D and E.
THANKS SO MUCH!!!
This worked on our 2020 Chrysler voyager as well.
After the swap, our ( @! ) Warring Light on the dash went out. Just like in your first test, our start/stop did also not work right away. However the start/stop did start working on its own (without any additional programming/code clearing) after driving about 8-10 miles.
You definitely earned a 👍 for this video and a new subscriber.
The video is very helpful. My kids left a door open and drained the battery. We had replaced the aux battery about 18 months ago and the van is starting fine. However, the start /stop feature stopped working and we have the error message. Can I simply put a battery charger on the aux battery rather than replacing it? My wife's van is a 2019 pacifica-Thank you!
Hey, I just wanted to tell you thanks for how easy your video was to help do this! I did it about 2-3 months ago. Everything was fine until about a week ago that the SAME warning light came on AGAIN. Any idea why this would be? Note, I did not replace the regular battery, only the auxillary. Thanks for any suggestions you might have. Scott McConnell Louisville KY
I had to replace the main battery a few months later so that may fix your issue as well. I haven’t had any issues at all with the warning light since I replaced the main battery.
This has become a well known problem with the Pacifica, and Chrysler has no fix for it. The aux battery failure associated with the start stop feature will eventually become an annual replacement of that battery. We had the same issue with ours last summer, replaced the aux and main battery. On the 4th of July (same month last year too) our Pacifica completely shut down at an intersection. We once again have the yellow warning light on the dash indicating start stop failure. We bought ours new in 2018, and it only has 50,000 miles on it. Even with lower mileage it’s developing numerous other electrical issues reported by other owners. Apparently the Pacifica’s are notorious for electrical problems that all seem to drain either the main battery or aux.., and both batteries with the start stop failure.
I hate the start stop feature in modern cars, and it seems like you almost can’t avoid it these days.
I was able to reset the light with my code reader, and it's reset function. Didn't try the unhooking negative cable -might have worked too.
This video really helped me to change my auxiliary battery that was preventing our Pacifica from starting and shifting from park! After replacing the auxiliary battery, I began wondering if I should replace the main battery as well. Anyone have any insight on this?
My 2019 I’ve had to deal with it three times during the 4 years. One double replacement and two more aux replacements.
Worked like a charm, thanks for the video!
Would love to find a video showing how you get your socket back if you drop it down into the well. There's a splash shield underneath on at least the 2020 and from what little I can see on my back, no way to get into there and get it back!
Very nice video. Clear instructions!
You can loosen the red terminal on the main battery to remove the auxiliary battery.
Great and timely info for me, Thank You
Excellent. Thanks for the walk through 👍
Hate Auto Start/Stop?
This worked for me.
Disconnect the Aux Battery Negative Terminal and insulate and secure the lead in a safe place.
The defective battery will no longer suck down the main battery. The Start/Stop will not function. The Fult light on the Dashboard will stay on. Your 2 options are: Ignore it. Or cover with electrical tape.
I had to do this today due to the aux battery causing the transmission to slip at times. (The dealer told me that the aux battery powers parts of the transmission)
I changed both batteries yesterday. Took surprisingly little time. However, I noticed after checking later that when I turned the vehicle off, there was a sewing machine -like sound coming from under the dash board. I don't remember it doing that previously? Reviewed Pacifica forums and looks like some A/C door or switch? Why would this have been affected?
Is there a system reset function that I need to perform in order to get everything working properly again? Notable that the radio stations were all still programmed, and it remembered Bluetooth connections, etc..
My car also has that noise is your car all right now?what method was used ，thank you
It's an actuator you can replace through the glove box they all make a crazy sound just replace it, $20 part
Ok mine had the same issue and they fixed the switch. However we are our 2nd main battery, and 3rd aux. getting an error for the 4th time. And I put the aux battery in on the 3rd time. i used a high quality interstate aux battery. Our car is a 2018 pacifica and we are also having hard shifts. So thanks whoever mentioned the aux does something for the transmission. We are also having weird electronic issues. Touch screen acting up, rear camera acting weird. I did find the box on the main battery the bolt that cranks the clamp on the positive terminal is broke from the dealer. Gonna throw the battery tender on as well to get it alll back up. Chrysler needs sued or recalled on this. What a shame. Great van except the battery issues and bullShiz.
Thank you so much for this and the video on how to replace the main battery! After I hooked up both a series of 3 beeps keeps sounding seemingly from the dashboard speakers every few seconds. I haven't been able to figure out what is causing this or how to stop it. Any ideas? Again, thanks for the videos!
You might try disconnecting the negative battery cable again for about 15 minutes and make sure all the colored connections on the aux harness are in the correct places. Thanks for watching.
Hi, thanks I think that’s what is going on with my pacífica, I will try this, thank you, blessings!
Fantastic 👏🏻👏🏻👏🏻👏🏻👏🏻 it solve my $1200.00 dollars Problem (dealer price) with just $109.00
As soon as you said 10mm my anxiety level shot through the roof. Any car guy will know exactly why.
Why? Love 10mm. Very standard. Lots of small engines use them too. You just don't use 160 psi to torque.
@@robertvance2790 You are obviously not a car person because if you were, you would have known exactly what I meant.
Can you just connect the battery wires to the main battery and just use the one?
Any idea what you can use to replace the stud posts. I lost one changing mine out and Im not even sure what to google search. Thanks and great video!
parts.chryslerjeepdodgecityofmckinney.com/p/Chrysler_2021_Pacifica/STUD-Double-Ended-Negative--Positive/70230666/06512377AA.html
You can pay about $100 and buy a device to plug into your port that disables auto start/stop when you turn the car on. I LOVE IT. :D
I have seen those and strongly considered getting one!
I have the light on the dash with the an and circle around it with an exclamation mark. Battery seems fine what would you recommend is the problem. Or what to do first anyways
You may want to check the voltage on the aux battery with a multimeter, or take the car to an auto parts store where they will test the battery for free. In my experience, when the aux battery starts to go bad, it won’t be long before it drains the main battery and leaves you stranded somewhere.
Looks like it's been about 7 months since your battery replacement. Everything ok? Any issues? I have a 2017 pacifica (bought used in 18). I'm pretty sure I'm going to replace both batteries to be sure. Is that fairly easy? Which should I replace first?
I actually had to replace the main battery about 5 months later and should have a video for that out soon. If you don’t mind spending the money all at once, it’s probably best to replace them at the same time, but that’s probably going to cost about $350. I’m sure a dealer would want $1k or more to replace both batteries, so $350 doesn’t sound too bad when you think of it that way.
@@TorqueWagon The start stop system seems to chew through AUX batteries way too fast and then starts to shorten the lifespan of the main Pacifica battery. I hope Chrysler can do a recall/fix on this sometime.
I’m having to replace my AUX battery for the second time in a year in my 2018. I hate it.
@@Sophiasgamings Same this year. I reached out to Chrysler customer care and they are telling me to see my dealer. I will be making an appointment. Something is not right.
Thank you for the video. I hate the auto start/stop feature. Can I just not replace the auxillary battery and so I won't have this auto start/stop feature? Will there be any concerns for the main battery if my aux battery is dead?
I’m not 100% sure but I think the aux battery will draw power from the main battery and shorten its life if you let it go too long without changing it when it goes bad. I ended up having to replace my main battery about five months after the aux battery. I had the start/stop light on for over a year before I changed the aux battery and I’m sure that didn’t help my primary battery any.
Question I have a service shifter issue on a 2019 pacifica and the dealership determines it's the auxiliary battery is this true
Dealer wanted $518 for this lmao. Thank you
That’s insane, but not surprising. They must be including the time the techs spend looking up the video on RUclips as part of the hourly rate.
What size of battery did you use to replace?
Thanks for the details.
Would this also cause the AC not to turn on? Everything was working fine until the start/stop light came on!!
If you disconnect that other connector on the negative battery terminal (main battery) it will disable the feature. No need to ever press the button. You will have a light on the dash, but I haven't notices any other effects.
I also hate that A.S.S. feature. It only works when I pull up to a stop sign, but never in the drive thru lane.
If we don't care for the start/stop, can we just remove the aux battery?
Take main battery out and auxiliary comes out easier
Start/stop function doesnt work without a seatbelt on, i noticed the indicator light was on when you were testing, thats probably why.
Wow! I sold my wagon to get our minivan
Good video but I didn't hear you say the name or the group number for the battery
H6 Size, minimum 660 CCA - MUST be AGM. Also, AUX14 AGM on ESS / Auxiliary Battery. Took me 20 minutes with power tool and sockets.
I love my Pacifica and the start stop.(once I got used to it)
I have not had to replace my start/stop battery since leaving it disconnected. And it is a more pleasant driving experience. Ignore the waring indicator on the dash board.