No problem and thanks for watching, I appreciate it. Yes! I called the dealership before hand and they wanted almost $900 to replace the batteries, so ended up doing it myself and saving a lot of money!
@@moeh9437 - No, the new battery doesn't need to be programmed at all. Just plug it in and go. Just make sure you remove the terminals and replace the terminals in the same order that I show in the video and you should be good to go! Thanks for watching!
Had the same error message, Autozone was out of batteries, found one at Oreillys, changed out the pins and replaced the Aux battery following the video's instructions, Error code disappeared immediately. Thank you very much!! A+++++
First I want to say thank you for creating this video tutorial. You saved me $150 dollars. Sorry for the long write up. Hopefully this will help others. I managed to remove the auxiliary battery from my wife's 2018 GC Laredo. It was the factory battery model 560297 AB 12V 12Ah 200 CCA (SAE/EN) MFG. for FCA US LLC, 1000 Chrysler Dr., Auburn Hills, MI 48326. Made in the USA with US and imporied materials. No English instructions; everything was in Portuguese. I found the same replacement battery at Batteries Plus for $99.99. Before driving to the shop, I disconnected the battery first and drove batteries plus. I wanted to compare the old and the new to make sure it was the same. Everything looked good. At Batteries Plus, I installed the battery and noticed the horn sound went off two times. I drove off and noticed that the yellow A with the circle turned on. The guy said drive it for about 10 minutes; it should go away. I drove for 30 minutes and had no luck. Back home, I saw your video again. I noticed that you removed the negative terminal from the main battery. I disconnected the negative terminal, and I also disconnected the auxiliary terminals. I waited 15 minutes and followed your video instructions. I connected the auxiliary positive terminal, then I connected the negative main terminal, and lastly the negative auxiliary terminal. I turned the Jeep on, and the light was GONE!
@NRHTX1 - Thank you for the feedback, I really appreciate it and I'm glad to read that your warning light went away after you rewatched the video. Glad that you found the video useful, and that you got to save some money too. I was quoted over $900 by the dealership to replace both batteries before I recorded this video! And your username looks like you're local to me - North Richland Hills!
@@CUPRADESIGN I loved your video, I tried it myself and ended up using the wrong socket and stripped my pin, I called auto zone and o'rielly and they told me that they are terminal screws, i live alone and have no ride to get replacements, anyone know what the pins are called so I may order them online? thanks again for the great content.
Very straightforward and instructional video for those seeking to replace the auxiliary battery - nicely done. That said, I can't stand the ESS and last time I checked there was no defeat module available for the 2018 model. However, I recently noticed the ESS was no longer functioning. That being a benefit, not a drawback, in my opinion, I did not seek out the cause. However, I later figured it out after noticing the message center displaying "Start/Stop Not Ready, Auxiliary Battery Low". So now I'm wondering if there's any harm to removing the aux battery altogether as a way to permanently disable the ESS. Everything else seems to be functioning normally.
I agree, mine eventually stopped displaying the "start/stop notice" so now I'm fine with it not working and it doesnt ever bother me with the notification lol.
Thanks for the feedback, I appreciate it. I looked into the module to deactivate ESS and you’re right, there’s something about the 2018 models, especially the Altitude model that isn’t compatible with the modules. Never did find a work around aside from disconnecting the AUX battery but then you have the ESS light on the dash constantly.
Thank you for your video. Couple comments for others - I was able to unscrew and transfer over the terminal posts on the Aux battery using a 5/32rd wrench socket. So a female torx (smaller than E8, that's all I had on hand, and it was too big) is not needed. The posts come out quite easy, and even if the top part gets slight damage it does not make contact with the nut so I do not see how this could hurt the post/terminal/battery. 2nd comment, my main negative terminal post connector (main battery, not Aux) was difficult to remove. A screwdriver can be used to pry open the side of the clamp to make it easier to remove. 3rd comment, there is a plate underneath the Aux battery that needs to be removed to pull out the main battery. There are two nuts that are hard to see that hold the plate down, but take a deep socket 13mm (or 1/2"). 4th the main battery can be pulled out more easily by tipping it towards its side. 5th, I used a small 12V ice fishing battery (and booster cables) to maintain the car memory (positive and negative posts on paasenger side of engine bay). With both batteries out of the car, the ice fishing battery was still running the interior lights.
Your tips were very helpful, thank you. I'd say a 13mm deep socket and 4" extension would be best. I tried a 13mm deep and 2" extension and it still wasn't long enough.
We have the 2018 Grand Cherokee Overland CRD. I suspect that the aux battery is on the way out and may need changing as it is now just over 6 years old. If I measure across the terminals of the main battery, it shows 12v or slightly less. If I measure across the aux battery. it reads exactly the same. My big concern is changing the battery and then losing all the settings and then having to go to a dealer to reset. We are in the UK.
Hey @iank6273 - thanks for the question. As you can tell from the video, I’m British too, just happen to live in the USA, so this was a US spec Grand Cherokee. The day before recording this video, I actually switched out the main battery. At the time, both batteries were 3 years old and here in Texas with the heat, you can expect a battery to last about 3 years. When switching out the main battery, I had no issues with the Jeep remembering the settings and then again the following day, replacing the auxiliary battery, no issues with the memory settings. I believe there is a small rechargeable battery somewhere that saves that information while the battery is being changed. You shouldn’t have to go to the dealership at all. Hope that helps and thanks for watching, I appreciate it!
@@CUPRADESIGNThanks for the heads up. Two national chains advised that battery was on its way out, but an Inde checked this morning and both batteries are healthy!
Thank you! The most difficult part was getting the last part of the cover off, it didn't want to let go! And running around to find the correct battery, but that was my fault for not following your link in the first place.
had the same issue i had to go to O'riellys $149.00 flat with military discount. it took me 15 mins to swap it out. i used the same top posts from the old battery. the light turned off. thank you for this Video
@ArkenAvan - the vent tube is there to vent any dangerous gases out of the battery and away from the vehicle so they aren’t built up under the passenger seat. The gasses that batteries give off is both toxic and flammable, so good that you caught it and hopefully reattached the vent tube! Hope that answered your question. Thanks for watching!
@@CUPRADESIGN Excellent video! But now I'm wondering if maybe I need a 'vent hose' myself. Usually after dining at Taco Bell, I have a tendency to vent dangerous and flammable gases that seem to build up in the interior of my Jeep.
So, I was in a pinch when I recorded the video, I ended up taking it back to Autozone and had them transfer the pins for me. However, after the fact I purchased a set of female torx bits. These are the ones I ordered: amzn.to/3NcSDnl
Thanks for the excellent video. You did not mention whether, after disconnecting both batteries, you had to redo ll of the preference settings for time, radio, navigation system, seat position, etc. If no, was that because you attached a memory saver battery or power supply? If yes, would the resets be avoided if the main battery was not disconnected? Thanks.
Hi George, thanks for the great feedback and glad you found the video useful. I didn’t have any issues at all, everything remained just fine. I had replaced the main battery the day before this video and again had no issues. No memory saver or anything like that. Just changed the battery and all was fine.
Walmart wont touch my vehicle because its under the seat and because its AMG he said about the memory saver and they need a battery saver that basically charges the old one while installing the new one so nothing gets fried or nothing deletes is that true ???? Please help asap.
I replaced with new main and auxiliary battery on my 2018 jeep grand cherokee, however the auto start/stop still not working, would I need to replace the battery sensor as well?
To be honest I am not sure. You may have a faulty Start Stop switch in the dash. Did you reconnect the Start Stop sensor on the battery firmly too? If it’s not connected fully it will give an error. And did you disconnect and reconnect the battery in the same order as the video, as it can cause problems if you don’t.
@oscarbravo8835 - So, I needed a set of female torx bits, I went back to Autozone and they actually swapped them over for me. However since then I purchased a set of female torx bits so I can switch them out in the future. Here is a link to a set: amzn.to/3NsV04t Hope that helps! Thanks for watching!
Great video with instructions. Quick questions, I want to replace both batteries. Is it okay if I disconnect and remove both at the same time? Do you recommend swapping the main battery first and then aux? I assume I don’t have to disconnect aux to be able to remove the main battery. Appreciate your help
You’re welcome, glad you found the video useful! That is exactly what I did, I replaced the main battery the day before I did this AUX battery. And actually you have to remove the AUX battery to get to the main battery so it benefits you to do them both at the same time. I ended up with double the work, so yes, do them both at the same time! Good luck!
Some of your accessories or functions may stop working, you may have an AUX battery light illuminate on your dash, or you car simply won’t start/stop. In my case I changed it out because the day before I changed out the main battery and wanted to make sure they both had the same shelf life. Hope that helps.
@MackTh8Knight - The pins require female torx bits to remove them. Didn’t have a set at the time so quickly took the battery back to Autozone and they switched them over for me and I purchased the set of female torx bits for future use. Hope that helps. Here are the ones I purchased: amzn.to/3QMszQK
@CUPRADESIGN I know this video was posted almost 3 years ago but did you notice if the Duralast AUX battery had more play in the retention strap than the OEM? Thanks for the video, very helpful.
@bent8131 - It’s been a while for sure, and unfortunately I don’t have the vehicle any more to be able to confirm for you, but as I recall, I don’t believe there was any difference in tension on the strap that held the battery in place. I think it held just the same. At 3:25 in the video I show the cover back on the battery and I don’t see it being loose there, or any looser than it was originally. I wish I could be of more help, thank you for watching, I really appreciate it!
Do you know where the fuses near the battery are located? I’m looking for the mysterious radio fuse located near the battery! Great video - thanks for the help!
Hey Ben, thanks for the question, unfortunately, I can’t help you, I don’t know where the radio fuse you are looking for and I actually don’t have the Grand Cherokee anymore, traded it in on a 2023 Camaro SS Convertible!
Hey @jwdibbs71 - I can think of 3 options: 1) Cut off the portion that you are putting in the new battery, it may have been crushed from the old battery and not fit snugly. 2) You could wrap electrical tape around that end to make it slightly thicker and then insert it into the new battery 3) You could purchase a new piece of hose for the new battery. Those are my thoughts, hopefully one of them will help you out. Thanks for watching, I appreciate it!
No, absolutely not. I replaced my main battery and then the AUX battery with Duralast batteries from Autozone. There is no reason that you have to stick with the OEM battery at all. Hope that helps.
Thanks very much for watching, I appreciate it. That's odd - where did you purchase the battery? I assumed that they were all vented, but especially being as it's under the passenger seat, it's definitely a good idea for it to be vented.
@gonzogonz915 - I ended up having to use some female torx bits to get them out. I actually went back to Autozone and they removed them for me, but I picked up some female torx bits for future use. You can find what I used here: amzn.to/3MLRSkJ
@jaeshungrier9278 - In some cases it does, in others you may need to drive 30-40 miles for it to get a good cycle through it and then it will go away. You may need to double check the connection of the negative terminal as well, that has the control module for the start/stop system on it. If that is loose, the light will still be on too. Hope that helps. Thanks for watching, I appreciate it!
how did you transfer the pins?? Also why didn't you mention the size of the retaining nut? I was half way through this and found out I needed to make a trip to the tool store to get the 10mm deep socket. Had to put everything back together again, used up most of my night.
Thanks for the feedback, I appreciate it. This was one of my first automotive videos I recorded, and I was replacing the battery for the first time on the fly as I recorded it. At 3:40 I did mention that the nut for the retaining strap is a 10mm. As for the battery terminal pins, I had to use a female torx bit to remove the pins and transfer them over. Hope that helps.
It’s been a while since I changed out this battery, but if memory serves me right, I didn’t lose the settings at all when disconnecting the battery. I believe there is a back up battery in the head unit that keeps those small memory pieces intact.
The two studs used a female torx to remove them. I didn’t have any at the time, so took the battery back to AutoZone and they removed them for me. I have since then purchased female torx bits!
So my wife's 2017 jeep grand cherokee battery needs replaced I noticed when starting her vehicle it's starting to have a hard time kicking over to start signs of battery going bad only question is should I change the bigger main battery or is it the smaller battery causing this, batteries are original oem they have lasted 5 years or change out both of them
At the time I made this video, I had changed out the main battery the day before. They were both the OEM batteries, both 4 years old. It is recommended that you change out both batteries at the same time, so that you can maintain optimal use, and keep the date codes of the batteries close to each other. The age of the batteries is key to this decision for you. Also consider your starter motor and your alternator as well. Hope that helps.
So, I am no engineer or electrician, take my comment with a pinch of salt. Technically you could run without the battery, but the battery doesn’t only just run the auto stop start. It also helps power other accessories in the vehicle. Also, you would end up with a constant light on the dash that the auto start stop was malfunctioning. The Aux battery is only $99 at Auto Zone. So it’s totally up to you. Hope that helps.
You may have other issues. If the Jeep won’t start period, it could be the main battery (not the aux - there are actually 2 batteries), it could be a bad starter motor, there could be an issue with your alternator. Hope that gives you something you can follow up with and troubleshoot.
@lynndavis6872 - Here you go: Duralast Platinum AGM Auxiliary Battery AUX14: www.autozone.com/batteries-starting-and-charging/battery/p/duralast-platinum-agm-battery-bci-group-size-48-760-cca-h6-agm/319460_0_0?rrec=true Duralast Platinum AGM Battery BCI Group Size 48 760 CCA H6-AGM (with Auto Start Stop): www.autozone.com/batteries-starting-and-charging/battery/p/duralast-platinum-agm-auxiliary-battery-aux14/755654_0_0 Hope that helps. Thanks for watching!
Should have added to my post - mine is the 2017 Grand Cherokee 3.0 diesel. I only bought it 6 months ago and didn’t know anything about the start/stop - as this doesn't work on my car? Maybe it's only on petrol versions? Any ideas?
I recently bought a main battery for my jeep 2 months ago and bought the aux battery a few days ago. in trying to replace the aux, when starting up the car, it says "10 V" . I don't know if my main battery is now drained. We tried putting the old aux back in and it's the same results of a drained main battery.
That does sound like you might have another issue. Depending on the age of your Grand Cherokee, you may have an alternator issue that aided the need to replace your battery. Definitely worth having it checked out.
So, I went out one night and the Jeep drove just fine. I went to start it the following morning and it was completely dead. Nothing. So I went and purchased a new battery and installed it. Did some more research and it was recommended to replace both batteries at the same time, so that’s what I did, replaced the Aux battery as well the following day. That’s the reason I switched it out. Not the ideal answer for your scenario unfortunately, but it is the reason I switched it out.
So I swapped the main battery since the the car didn't have enough juice to start. After replacing main battery still no power. Did yours start after replacing main battery without replacing the auxilary battery?
At the time, I had to take the batteries to Autozone and have them swap over the pins as I didn’t have female torx bits, subsequently I’ve purchased female torx bits.
My overland … was slowly dying and I changed her main battery . She didn’t crank nor click . After I changed her battery. When I realized it correlated with the start / stop function as it was not able to charge . Could it be my aux battery not letting her start ? Any ideas ?
That may definitely be the case, however, you may have an issue with your starter motor or your alternator potentially. Replacing the AUX battery is one of the cheaper fixes here, at only $100 or so. Mine wouldn't crank over at all or click when I had this issue, I did replace the main battery first and it did turn over after that. I chose to replace the AUX battery the following day to keep them both within the same time frame. Hope that helps.
@juniorgarcia114 - Hey there, thanks for watching, I appreciate it. Unfortunately, I no longer have the Jeep Grand Cherokee. My channel now has a lot of videos of my wife's 2021 Ford Bronco modifications, and of my 2024 Corvette Convertible, which I am slowly but surely working on as well. Again, thanks for watching, and good luck with your project!
Excellent step by step instruction! You made replacement seem simple. I had my battery replaced recently and now my auto start/stop disable dash light stays on. Did they forget to connect something or do I need to "reset" something in my control panel?
Thank you, I appreciate it. So, as far as I am aware from the research I’ve done, the control module for the Start/Stop feature is on the negative terminal of the battery. You can technically disable the Start/Stop feature by disconnecting it, but it will leave that dash light on. So yes, I would double check the connections to the AUX battery and make sure they are fully seated. I did NOT have to reset anything after replacing the battery. And for frame of reference, I replaced the main battery the day before, without issue. So both batteries were new and didn’t have to be reset. Hope that helps.
So I purchased a jeep 2016 there was a light with the letter A and a circle around it they had it looked at and said it was the small battery they replaced said the light letter A would go away after driving for while if that was even what caused it that’s what mechanic said it was do you know if the battery would cause that light it does say start stop unavailable??
Yes, the battery is one of the things that can cause that light. Ours was a 2018 and at the time I recorded this video, the battery was 3 years old and the batteries were in need of changing. Now if you look at the connection for the AUX battery, there is also a controller that sends a signal about the start stop system. You can actually disconnect it and disable the start stop that way. So if there is any damage to that connector then that would throw the error as well.
Love the step by step instructions, my aux just went out 3 days ago I went and bought a new but when I attempted to replace it I notice the two pin screw where terminal is how did you get to transfer those two screws ?.
So, when I realized that, I went back to Autozone and they swapped them over for me. However since then I purchased a set of inverted torx bits so I can switch them out in the future. Here is a link to a set: amzn.to/3NsV04t
The AUX battery is the one that controls the accessories when the Start/Stop function is active, it keeps the accessories running when the engine turns off. It's a good rule of thumb to replace both batteries at the same time.
Thank you- But what I’m asking is if that light is on on your dash that there’s a problem how do you know that it’s not some thing else within that start stop fault system
@@Michelle-gv3ry Apologies for not answering your question properly. Well, without testing anything, it's hard to determine what the issue is. You could go to Autozone and they will read the codes in the vehicle and they might be able to let you know. That is what I did when I had the issue with my ESIM Module that failed in another one of my videos, I simply went to Autozone and they pointed out what the issue was. Hope that helps a little better.
In all honesty, I don’t have a good answer for you. In my research before tacking this, each application recommended disconnecting the main battery during this process. I personally had just replaced the main battery the day before replacing this auxiliary battery, so it wasn’t a concern for me. Wish I could give you a categorical answer, but my research had me disconnecting the main battery as well to do this.
While the main black lead is connected, touching anything metal on the car with the flopping around red loose lead will arc and blow fuses. To avoid that disconnect both black leads before any red ones.
My start/stop wasnt working so i replaced the batteries now i get a low voltage message despite the new batteries. Even swapped out thenlow voltage sensor and still get the same message
Sorry to hear that. I am not sure what would cause that. The only thing I can think of is to double check the tightness of the connections. I also do recall that you had to remove the terminals in the same order as the video and put them back in the same order as the video. That might help. You may have an alternator issue, if you are still getting a low voltage message. Or maybe there is an issue with your Start Stop switch itself, maybe someone disabled it from behind? (that answer assumes you are not the original owner). That's about all the advice I've got. Hope it helps.
What issues were you having that made you change the battery? I’m having an extended crank issue that only does it when I start the vehicle manually. Never does it with remote start.
The problem I had was that the night before, nothing was wrong at all with the Jeep. The following morning I went to start it up to go for inspection and it was completely dead. Went and changed the main battery and the following day decided to change the AUX battery as it’s advised to change them both at the same time. It was purely precautionary for the AUX battery.
@jermainewilliams did you figure out your issue ? I’m having the same issue on my 2017 . Stop/start is unavailable and getting extended crank on first start up .
I didn't change the top post or pins as you did a few years back. Is the reason for changing the pins due to OEM products vs none OEM products or does it really matter?
@williamsmith151 - Great question, the reason for switching the pins over is because the new battery I picked up did NOT have the pins installed. I had to remove them from the OEM battery and insert them into the new battery. Took about 5 mins. Here's the kit I used, you need to have some female torx bits: amzn.to/3AG3ToN
Thanks for watching. The Dodge Durango and the Jeep Grand Cherokee are essentially the same platform, so depending on the model, if it has the Auto Start/Stop feature, then I would assume that it does. It should be easy to slide your passenger seat forwards, lift up the plastic cover and see if there are two batteries in that space. But presumably, you will have an Aux battery under there. Good luck!
Hi Amanda, our Grand Cherokee is the Altitude model, so only has a powered driver seat. The passenger seat is manually operated which means it can fold flat like that.
@oscarnadal1223 - When you replaced the battery, did you remove and reconnect the terminals in the same order as I showed? You need to make sure on the MAIN battery (not the AUX) that the controller module is attached (you'll see it on the negative terminal, it's like a 2" black box). If that is not connected properly, you will still get the 'A' symbol on the dash - leaving that disconnected is the cheat way to get around the 'A' system, but leaves the symbol on the dash. Also - there is a button on the dash, down low in the center that turns on and off the auto start stop, you may need to press that a couple of times to get the system to sync back up. Outside of that, you may have an issue that is still causing that to happen. Good luck.
At the time, I took the battery to Autozone and they transferred them over for me. However since that time, I purchased female torx bits to that I can switch them out again in the future if need be, by myself. Hope that helps.
Hi recently followed that step by step but unfortunately when i turned the truck back it was given my all kinds of lights on and it won’t fucntion properly. Do I need to take it to the dealer for a computer reset? Help!!!
I would slide the passenger seat forward, and check that nothing is causing it to arc at all. Check if you have any pinched wires. Check that you have the terminals tightened down and that one hasn’t come loose. Is the battery flat (horizontal) and tightened down properly. Did you reattach the vent tube? I’m just spitballing here as it’s been over a year since I replaced it and haven’t had to recheck it since.
@@dawnhale7542 The vent hose is there to help any build up of gases from the battery escape. The vent hose shouldn't stop the vehicle from starting, however, if the vent hose isn't connected, then there is the chance of gasses building up and the potential for an explosion in extreme cases. Definitely worth checking out.
Sorry to hear that. So, as far as I know, the start/stop battery lasts about 4 years. So depending on the age of your vehicle, that could be a factor. However if your vehicle was ‘dead’, it’s more than likely it was your main battery. When mine died, I replaced the main battery first and our Jeep fired right back up afterward doing so, so there was still charge in the Aux battery. It is, however, recommended to replace the Aux start/stop battery at the same time so that you can keep track of it for your records, but also only have to be under the passenger seat once, especially as you have to remove the Aux battery first to get to the main battery. This information came from the Jeep dealership. I paid $250 for the main battery and $100 for the Aux battery at Autozone (dealership wanted $900!). I changed them both myself at the same time (a day apart for me) for added piece of mind. Hope this helps and good luck.
@Mori11116 - I ended up taking the battery back to Autozone and they did it for me. You need female torx bit, which I didn't have. I did end up purchasing some and you can get them here: amzn.to/468ESys
So I took my 2019 grand Cherokee to jiffy lube for battery change absolutely nothing wrong with the jeep bought directly from the dealer wit 40,000 miles now it seem like those guys didn’t know what they were doing cause they seem a bit confused when I go to pick my jeep up it wouldn’t even turn on like literally nothing happens can’t turn it on for nothing in the world just all the lights in the jeep start blinking a lot was it the change of battery that caused the malfunction? Like they said the computer blew on it & im trying to figure out if their at fault for that cause there was absolutely nothing wrong wit my jeep when I brought it there now she’s completely dead don’t respond to anything
Woah, sorry to hear that. I’m no technician as I’ve mentioned a few times in my comments, but that sounds to me like an issue with Jiffy Lube, if the Jeep was working fine on the way in and now doesn’t work at all. Did you have both batteries replaced at the same time or just the AUX battery? I replaced both of mine within a day of each other.
Here’s a link to the one I purchased: www.autozone.com/batteries-starting-and-charging/battery/p/duralast-platinum-agm-battery-aux14-group-size-aux14-200-cca/755654_0?rrec=true
Great video! Did you need to use a battery registration tool? I was told when replacing either battery use must update the battery info in the vehicle's computer
Thank you, I appreciate it! Glad it helped you out. I didn't need to use any kind of battery registration tool when replacing them. When scrolling through the vehicles information center, the battery information automatically populated, i.e. I was able to see the battery's status. I watched a few videos as well, and didn't see any that required the use of a battery registration tool. It's been a couple of months now since I replaced the batteries, and I've monitored the battery's charge status without issue. However, for your peace of mind, and if you have a battery registration tool, it wouldn't hurt to do it, but it's not something that I did at this time, nor had I heard of to be honest.
@@CUPRADESIGN Thanks. I have searched online and through the Jeep manuals and nothing about battery registration for Jeep 2018. Just professional installation required. I have 2018 Jeep Laredo and was told by the dealership and auto parts stores the battery must be registered (updated) to the battery control module to prevent possible damage over time and may void warranty. Below is a TH-cam explanation. th-cam.com/video/TGKohKZHzr0/w-d-xo.html
@@rumrunner23 I appreciate the link, thank you! Agreed, I've looked online and don't see anything about the battery registration for a 2018 Jeep Grand Cherokee either. After you mentioned it, I did a dig around online as well. The dealership wanted $900 to replace the two batteries, so I decided to do it myself instead for just a little over 1/3 of the price. Same with my ESIM module replacement video. The dealership wanted $495 to replace that module. The part was $32 and I replaced it in 15 mins.
@@CUPRADESIGN Ha! Yeah the Jeep dealership said it would be a minimum $150 labor, $280 for main battery and $145 for the auxiliary battery so I started looking for a replacement battery and found out about the registration requirement. It might not be necessary for 2018 models. Its good to know you haven't had any issues. Your video was good and will be helpful if I decide to chance it and replace the batteries myself. I will let you know if I find out any more about the registration requirements for 2018 Jeep.
@@rumrunner23 Thanks again for the compliment on the video. I replaced the main battery the day before, but I didn't record a video. This video was one of my first how to videos after deciding to start creating some content. One word of advice, I purchased the battery from Autozone, and the terminal pins in the auto start/stop battery don't come with the new battery, you have to transfer them over from the OEM one. That required a female torx bit. I ended up taking both batteries back to Autozone and have them transfer the terminal pins. After that, I purchased my own female torx set, for future use. This is the set I purchased, if it helps: amzn.to/3J1IRkp
Thanks for this - searched for ages to find it. I'm in the UK - had the main battery changed out at Halfords (correct AGM Start/Stop). Now the Start/Stop dashboard warning light is permanently on. I'm wondering if it's the auxiliary battery that's the problem. Can't find the correct spec in the UK - the best I can find is Yuasa YTX14AH-BS 12V High Performance. Any thoughts?
So… whilst I’m a Brit, I live in the USA, so this was a challenge. Having a look around, I found this site: m.buycarparts.co.uk/jeep/grand-cherokee-iv-wk-wk2/129356/10142/battery They show a list of batteries, and this one looks to be the closest to the battery I switched out: m.buycarparts.co.uk/empex/16417477 That one is ‘close’ to the price I paid as well ($99) so it I looking likely that it might be the one. However, as I said, I can’t verify that, living in the USA. Hopefully this helps and thanks for watching!
@romangr17 - If you don't put in the AUX battery, your vehicle will still start and drive like normal. However, what you may encounter is some accessories may not function properly or not at all. Your Jeep also has a warning light on the dashboard that will illuminate when the battery is starting to fail or missing and will be constantly on.
At 1:00 I mentioned/showed that the first deep socket is a 13mm, and then at 1:21 I mentioned/showed that the second deep socket is a 10mm. Hope that helps.
@jovanies9751 - What's even wilder is that Jeep wanted $900 to replace the two! I did it for less than half of that by doing it myself! Thanks for watching, I really appreciate it, and good luck when switching out your batteries!
Hey ‘sins’, great question! So in the video I mentioned that I took the battery back to AutoZone and had them do it for me. Subsequently, I needed to order some female torx bits. That’s all you need to be able to transfer the pins over. At the time I never realized that female torx bots were a thing, but they are. So now I have a set for the future. You can pick them up easily on Amazon. These are the ones I ordered: amzn.to/3ZvoV0m Hope that helps!
Thank you for the video. I also hear the auxiliary battery is there to run some other accessories in the car as well, beside the useless start/stop feature. Can anyone comment on that , please? I made it a habit to turn off the start/stop as soon as I start my grand Cherokee.
The aux battery strictly keeps everything going when ESS stops the engine. The first mod I did when I bought my WK2 was installing a Smart Stop Start module under the driver seat. It simply retains the last state of the ESS and Sport Mode switches so you don't have to keep turning it off. It's a little pricey but worth it in my opinion, especially if you turn it off all the time anyway. It connects in-line to an existing wiring harness so it takes as long to slide the seat back as it does to install it. I've had it in place for nearly 4 years now.
As Shane mentioned, the Aux battery keeps keeps accessories and computer alive when the ESS stops the engine. The size of the Aux battery is insufficient to provide cranking current to the starter motor anyway. It only is there to keep systems alive when the alternator is not producing anything. Like you, we turn off the ESS every time we step into the vehicle. (That and the reverse park sensors when pulling out of the garage, as the Jeep wants to auto brake every single time, being a double garage but with two single doors!)
Why did you have to replace both this and the main battery? Reason I ask is my 2018 would not start and I needed a jump to get it going. Wondering if I need both or just main battery? Sounds like the aux does not have the power to start the vehicle if main is dead. Mine is the original battery so prob time to replace eh?
@@Patriotvb That is exactly the reason. Both batteries were 3.5 years old and it was recommended if you replace on, replace them both. So I did the main battery the day before which is why I found out I needed an Aux battery, so thought I would record the replacement of that one. The Aux battery is essentially there as a back up battery, but runs some systems like the radio, infotainment, even the AC, but more importantly, the Auto Start/Stop system. It’s charged just like the main battery when driving.
I can only guess it's to relieve some of the strain off of the main battery with the constant stop/start process, but I asked the same question of myself when I started having a battery issue! Thankfully the auxiliary battery is only $99 to replace, vs the cost of the main battery.
@@CUPRADESIGN I am thinking that they should be replaced as a pair. It just cost me $259.98 for the pair. The main battery is only 650 amp. Couldn't they just put a bigger main battery
@@oldman6495 I totally agree, I ended up replacing both of mine within a day of each other just to be safe. I had replaced the main battery the day before, I just didn't record changing that one! I can understand 'some' logic with the aux battery, that gets used more often for the stop/start could wear out quicker, and can be replaced cheaply and not leave you stranded, as all you would really lose is the capability of the stop/start feature. I would be happier to not have the feature at all!
@@oldman6495 The same here! We have just made it an instinct to turn off the Auto Start/Stop system every single time we get into the Jeep. It's just habit now!
I wonder if a guy could just move the positive and negative wires from the Aux battery to the main battery and just get rid of the Aux battery all together.
So yes, technically, you can do as you describe - however - if you do, you will have the ‘A’ in a circle light on your dash for the stop start system not working, and also, if your battery dies, you won’t have access to anything (I don’t believe) as there will literally be no auxiliary power at all. The aux battery takes care of more than just the annoying start stop system. Now take this info with a pinch of salt, I am NOT a mechanic, I merely pretend (poorly) to portray one on the internet.
I mentioned in the video that the pins in the AUX battery need to be switched over. You need a female torx bit to be able to replace the pins from the old battery to the new battery. I didn't record that part as I ended up having Autozone do that for me, but I did mention it.
Hasta donde yo sé, la batería del Grand Cherokee 2015 está en el mismo lugar. No todos los modelos del Grand Cherokee tienen dos baterías. (As far as I know, the 2015 Grand Cherokee battery is in the same place. Not all models of the Grand Cherokee have two batteries.)
I purchased a set of female torx bits to remove the pins. This is the set that I purchased: amzn.to/30M7fVH They are in there pretty good, but a little effort and they came right out. Hope that helps.
@daveluhrs1504 - Thanks for the feedback! I was quoted $960 to replace both batteries, decided to do it myself for ⅓ of the cost! Glad you found the video useful! Thanks for watching!
Why would you do this ? I hate that system..I guess mine aux battery is dead because my 2018 JGC no longer requires me do press the disable button every fucking time I drive...
@mike8989ful - I did this because I didn't want to see the annoying light on the dash every time I got into the vehicle. But you are right, you can disconnect the AUX battery and not have to press the stop start function anymore each time you get in, but you will have amber that (A) symbol on the dash. Thanks for watching, I appreciate it!
You simply slide the seat as far forward as it will go on the runners. That’s all you need to do. You don’t need to remove it or anything else. That gives plenty of access to the battery cover panel. I show this exact step at the 0:14 mark in the video and explain you slide the seat forward to get to the access panel underneath.
Thank you. Short and to the point with clear filming. perfect.
Thanks very much, appreciate the feedback and thank you for watching, glad you found the video useful!
Had a appointment next week at the dealership. Cancelled the appointment. Thank you,you saved me CASH.
No problem and thanks for watching, I appreciate it. Yes! I called the dealership before hand and they wanted almost $900 to replace the batteries, so ended up doing it myself and saving a lot of money!
Does it need to be programmed or anything?
@@moeh9437 no
@@moeh9437 - No, the new battery doesn't need to be programmed at all. Just plug it in and go. Just make sure you remove the terminals and replace the terminals in the same order that I show in the video and you should be good to go! Thanks for watching!
Had the same error message, Autozone was out of batteries, found one at Oreillys, changed out the pins and replaced the Aux battery following the video's instructions, Error code disappeared immediately. Thank you very much!! A+++++
That’s awesome! So glad you found the video useful and you were able to take care of it yourself. The dealership prices were ridiculous!
First I want to say thank you for creating this video tutorial. You saved me $150 dollars. Sorry for the long write up. Hopefully this will help others.
I managed to remove the auxiliary battery from my wife's 2018 GC Laredo. It was the factory battery model 560297 AB 12V 12Ah 200 CCA (SAE/EN) MFG. for FCA US LLC, 1000 Chrysler Dr., Auburn Hills, MI 48326. Made in the USA with US and imporied materials.
No English instructions; everything was in Portuguese. I found the same replacement battery at Batteries Plus for $99.99. Before driving to the shop, I disconnected the battery first and drove batteries plus. I wanted to compare the old and the new to make sure it was the same. Everything looked good. At Batteries Plus, I installed the battery and noticed the horn sound went off two times.
I drove off and noticed that the yellow A with the circle turned on. The guy said drive it for about 10 minutes; it should go away. I drove for 30 minutes and had no luck.
Back home, I saw your video again. I noticed that you removed the negative terminal from the main battery. I disconnected the negative terminal, and I also disconnected the auxiliary terminals. I waited 15 minutes and followed your video instructions. I connected the auxiliary positive terminal, then I connected the negative main terminal, and lastly the negative auxiliary terminal. I turned the Jeep on, and the light was GONE!
@NRHTX1 - Thank you for the feedback, I really appreciate it and I'm glad to read that your warning light went away after you rewatched the video. Glad that you found the video useful, and that you got to save some money too. I was quoted over $900 by the dealership to replace both batteries before I recorded this video! And your username looks like you're local to me - North Richland Hills!
Truly pro video, right to the point, crisply edited. No need to watch any others.
@robertwieting7450 - Thank you so much for the kind feedback, I really appreciate it! Glad you found the video useful and thanks so much for watching!
Thank you so much for this video. I had to replace the AGR battery in my 2019 Grand Cherokee and this made it a breeze. Straight and to the point. 👏
@xoloft73 - Thanks so much for the feedback, I really appreciate it! Glad you found the video useful and thanks for watching!
Camera work @ explanation was straight forward and to the point. Well done!!! 👍🏻 🇨🇦
@404notfound..... - Thanks very much, appreciate it! Glad you found the video useful and thanks for watching!
Excellent video! Id like to add that swapping out those posts are easy with a 4mm socket. Slowly unscrew them and you have it!
@DaSmoov54 - Thanks, great tip! Appreciate it!
@@CUPRADESIGN I loved your video, I tried it myself and ended up using the wrong socket and stripped my pin, I called auto zone and o'rielly and they told me that they are terminal screws, i live alone and have no ride to get replacements, anyone know what the pins are called so I may order them online? thanks again for the great content.
Very straightforward and instructional video for those seeking to replace the auxiliary battery - nicely done. That said, I can't stand the ESS and last time I checked there was no defeat module available for the 2018 model. However, I recently noticed the ESS was no longer functioning. That being a benefit, not a drawback, in my opinion, I did not seek out the cause. However, I later figured it out after noticing the message center displaying "Start/Stop Not Ready, Auxiliary Battery Low". So now I'm wondering if there's any harm to removing the aux battery altogether as a way to permanently disable the ESS. Everything else seems to be functioning normally.
I agree, mine eventually stopped displaying the "start/stop notice" so now I'm fine with it not working and it doesnt ever bother me with the notification lol.
Thanks for the feedback, I appreciate it. I looked into the module to deactivate ESS and you’re right, there’s something about the 2018 models, especially the Altitude model that isn’t compatible with the modules. Never did find a work around aside from disconnecting the AUX battery but then you have the ESS light on the dash constantly.
Thank you for your video. Couple comments for others - I was able to unscrew and transfer over the terminal posts on the Aux battery using a 5/32rd wrench socket. So a female torx (smaller than E8, that's all I had on hand, and it was too big) is not needed. The posts come out quite easy, and even if the top part gets slight damage it does not make contact with the nut so I do not see how this could hurt the post/terminal/battery. 2nd comment, my main negative terminal post connector (main battery, not Aux) was difficult to remove. A screwdriver can be used to pry open the side of the clamp to make it easier to remove. 3rd comment, there is a plate underneath the Aux battery that needs to be removed to pull out the main battery. There are two nuts that are hard to see that hold the plate down, but take a deep socket 13mm (or 1/2"). 4th the main battery can be pulled out more easily by tipping it towards its side. 5th, I used a small 12V ice fishing battery (and booster cables) to maintain the car memory (positive and negative posts on paasenger side of engine bay). With both batteries out of the car, the ice fishing battery was still running the interior lights.
This is all great feedback, thank you! Thanks for taking the time to watch the video, I appreciate it and glad that you found it useful!
Your tips were very helpful, thank you. I'd say a 13mm deep socket and 4" extension would be best. I tried a 13mm deep and 2" extension and it still wasn't long enough.
@@bent7131 - Great feedback, thank you!
We have the 2018 Grand Cherokee Overland CRD. I suspect that the aux battery is on the way out and may need changing as it is now just over 6 years old. If I measure across the terminals of the main battery, it shows 12v or slightly less. If I measure across the aux battery. it reads exactly the same. My big concern is changing the battery and then losing all the settings and then having to go to a dealer to reset. We are in the UK.
Hey @iank6273 - thanks for the question. As you can tell from the video, I’m British too, just happen to live in the USA, so this was a US spec Grand Cherokee.
The day before recording this video, I actually switched out the main battery. At the time, both batteries were 3 years old and here in Texas with the heat, you can expect a battery to last about 3 years.
When switching out the main battery, I had no issues with the Jeep remembering the settings and then again the following day, replacing the auxiliary battery, no issues with the memory settings.
I believe there is a small rechargeable battery somewhere that saves that information while the battery is being changed. You shouldn’t have to go to the dealership at all. Hope that helps and thanks for watching, I appreciate it!
@@CUPRADESIGNThanks for the heads up. Two national chains advised that battery was on its way out, but an Inde checked this morning and both batteries are healthy!
Glad to hear that your batteries are doing well. Hopefully they last for a while for you, and if not, then bookmark this video for future reference!
Thank you! The most difficult part was getting the last part of the cover off, it didn't want to let go! And running around to find the correct battery, but that was my fault for not following your link in the first place.
Really glad that the video helped you out and you were able to get the battery changed! Thank you for the kind words!
Great video, super informative. Both my batteries had a bad cell. Replaced them right away. Thank you!
@Andres_Munoz96 - Awesome, glad you found the video useful, and thanks for watching, I appreciate it!
had the same issue i had to go to O'riellys $149.00 flat with military discount. it took me 15 mins to swap it out. i used the same top posts from the old battery. the light turned off. thank you for this Video
@oxman9626 - Glad this worked for you and you found the video useful - thanks for watching, I appreciate it!
What does vent hose do? In just found out mine was disconnect for a while
@ArkenAvan - the vent tube is there to vent any dangerous gases out of the battery and away from the vehicle so they aren’t built up under the passenger seat. The gasses that batteries give off is both toxic and flammable, so good that you caught it and hopefully reattached the vent tube! Hope that answered your question. Thanks for watching!
@@CUPRADESIGN Excellent video! But now I'm wondering if maybe I need a 'vent hose' myself. Usually after dining at Taco Bell, I have a tendency to vent dangerous and flammable gases that seem to build up in the interior of my Jeep.
@@santaclause2875 - Hahahaha! I see what you did there - nicely done! Thanks for the laugh!
Thanks! you saved me $150 from the dealership.
Awesome! Glad you found the video helpful!
My dealer is charging 347
Great Video 👌 What do you use to transfer the pins from the old battery to the new one? Size?
So, I was in a pinch when I recorded the video, I ended up taking it back to Autozone and had them transfer the pins for me. However, after the fact I purchased a set of female torx bits. These are the ones I ordered: amzn.to/3NcSDnl
Thanks for the excellent video. You did not mention whether, after disconnecting both batteries, you had to redo ll of the preference settings for time, radio, navigation system, seat position, etc. If no, was that because you attached a memory saver battery or power supply? If yes, would the resets be avoided if the main battery was not disconnected? Thanks.
Hi George, thanks for the great feedback and glad you found the video useful. I didn’t have any issues at all, everything remained just fine. I had replaced the main battery the day before this video and again had no issues. No memory saver or anything like that. Just changed the battery and all was fine.
Walmart wont touch my vehicle because its under the seat and because its AMG he said about the memory saver and they need a battery saver that basically charges the old one while installing the new one so nothing gets fried or nothing deletes is that true ???? Please help asap.
I replaced with new main and auxiliary battery on my 2018 jeep grand cherokee, however the auto start/stop still not working, would I need to replace the battery sensor as well?
To be honest I am not sure. You may have a faulty Start Stop switch in the dash.
Did you reconnect the Start Stop sensor on the battery firmly too? If it’s not connected fully it will give an error.
And did you disconnect and reconnect the battery in the same order as the video, as it can cause problems if you don’t.
Awesome video !! But how were you able to transfer over the pins from the previous batter ??
@oscarbravo8835 - So, I needed a set of female torx bits, I went back to Autozone and they actually swapped them over for me. However since then I purchased a set of female torx bits so I can switch them out in the future. Here is a link to a set: amzn.to/3NsV04t
Hope that helps! Thanks for watching!
Great video with instructions. Quick questions, I want to replace both batteries. Is it okay if I disconnect and remove both at the same time? Do you recommend swapping the main battery first and then aux? I assume I don’t have to disconnect aux to be able to remove the main battery. Appreciate your help
You’re welcome, glad you found the video useful! That is exactly what I did, I replaced the main battery the day before I did this AUX battery. And actually you have to remove the AUX battery to get to the main battery so it benefits you to do them both at the same time. I ended up with double the work, so yes, do them both at the same time! Good luck!
What issue would indicate the start/stop function not working to know it was that battery and not the main one?
Some of your accessories or functions may stop working, you may have an AUX battery light illuminate on your dash, or you car simply won’t start/stop.
In my case I changed it out because the day before I changed out the main battery and wanted to make sure they both had the same shelf life. Hope that helps.
I’m tryna figure out how he took the pins off the Aux Battery bc I’ve tried pliers and everything
Nvm i figured it out. 4mm ratchet will do the trick.
@MackTh8Knight - The pins require female torx bits to remove them. Didn’t have a set at the time so quickly took the battery back to Autozone and they switched them over for me and I purchased the set of female torx bits for future use. Hope that helps. Here are the ones I purchased: amzn.to/3QMszQK
@CUPRADESIGN I know this video was posted almost 3 years ago but did you notice if the Duralast AUX battery had more play in the retention strap than the OEM? Thanks for the video, very helpful.
@bent8131 - It’s been a while for sure, and unfortunately I don’t have the vehicle any more to be able to confirm for you, but as I recall, I don’t believe there was any difference in tension on the strap that held the battery in place. I think it held just the same. At 3:25 in the video I show the cover back on the battery and I don’t see it being loose there, or any looser than it was originally. I wish I could be of more help, thank you for watching, I really appreciate it!
Do you know where the fuses near the battery are located? I’m looking for the mysterious radio fuse located near the battery! Great video - thanks for the help!
Hey Ben, thanks for the question, unfortunately, I can’t help you, I don’t know where the radio fuse you are looking for and I actually don’t have the Grand Cherokee anymore, traded it in on a 2023 Camaro SS Convertible!
What do you do if your vent hose is too small and keeps falling out of the new auxiliary battery
Hey @jwdibbs71 - I can think of 3 options:
1) Cut off the portion that you are putting in the new battery, it may have been crushed from the old battery and not fit snugly.
2) You could wrap electrical tape around that end to make it slightly thicker and then insert it into the new battery
3) You could purchase a new piece of hose for the new battery.
Those are my thoughts, hopefully one of them will help you out. Thanks for watching, I appreciate it!
What was the socket size for the restraining strap?!
@grantbartow13 - Hi, at 3:40 I mention that it’s a 10mm nut that holds down the retaining strap. Hope that helps and thanks for watching!
Do we really need to go for an OEM battery or any standard one will do the job?
No, absolutely not. I replaced my main battery and then the AUX battery with Duralast batteries from Autozone. There is no reason that you have to stick with the OEM battery at all. Hope that helps.
great video, I change my aux battery yesterday , but the aux battery doesn't have the hole to install the vent hose !
Thanks very much for watching, I appreciate it. That's odd - where did you purchase the battery? I assumed that they were all vented, but especially being as it's under the passenger seat, it's definitely a good idea for it to be vented.
@@CUPRADESIGN
Batteries+ in Puerto Rico !
How did you pull the old studs out? Of the aux battery?
@gonzogonz915 - I ended up having to use some female torx bits to get them out. I actually went back to Autozone and they removed them for me, but I picked up some female torx bits for future use. You can find what I used here: amzn.to/3MLRSkJ
Does the light go away immediately? I just installed my aux battery and still getting same message on dashboard
@jaeshungrier9278 - In some cases it does, in others you may need to drive 30-40 miles for it to get a good cycle through it and then it will go away. You may need to double check the connection of the negative terminal as well, that has the control module for the start/stop system on it. If that is loose, the light will still be on too. Hope that helps. Thanks for watching, I appreciate it!
Just replaced mine..took me about 30 minutes total thanks
Hey no problem, glad you found the video useful and that you got it replaced quickly!
how did you transfer the pins?? Also why didn't you mention the size of the retaining nut? I was half way through this and found out I needed to make a trip to the tool store to get the 10mm deep socket. Had to put everything back together again, used up most of my night.
Thanks for the feedback, I appreciate it. This was one of my first automotive videos I recorded, and I was replacing the battery for the first time on the fly as I recorded it.
At 3:40 I did mention that the nut for the retaining strap is a 10mm. As for the battery terminal pins, I had to use a female torx bit to remove the pins and transfer them over. Hope that helps.
Shut up and be grateful he created this video so we can all understand what needs to be done.
What size female torx bit did you used for the pins
I used a drill and tightened it around the pins then put it in reverse. Hope this helps.
When you disconnect the one main battery do you not loose all the memory / radio security details?
It’s been a while since I changed out this battery, but if memory serves me right, I didn’t lose the settings at all when disconnecting the battery. I believe there is a back up battery in the head unit that keeps those small memory pieces intact.
Question about the two studs you transferred over to new auxiliary battery. Is that a regular socket or torx? Great video.
The two studs used a female torx to remove them. I didn’t have any at the time, so took the battery back to AutoZone and they removed them for me. I have since then purchased female torx bits!
They are called E sockets as in External torx@@CUPRADESIGN
So my wife's 2017 jeep grand cherokee battery needs replaced I noticed when starting her vehicle it's starting to have a hard time kicking over to start signs of battery going bad only question is should I change the bigger main battery or is it the smaller battery causing this, batteries are original oem they have lasted 5 years or change out both of them
At the time I made this video, I had changed out the main battery the day before. They were both the OEM batteries, both 4 years old. It is recommended that you change out both batteries at the same time, so that you can maintain optimal use, and keep the date codes of the batteries close to each other.
The age of the batteries is key to this decision for you. Also consider your starter motor and your alternator as well. Hope that helps.
If i never use the Start-Stop, can i simply do without the Aux battery and just toss it???
So, I am no engineer or electrician, take my comment with a pinch of salt. Technically you could run without the battery, but the battery doesn’t only just run the auto stop start. It also helps power other accessories in the vehicle.
Also, you would end up with a constant light on the dash that the auto start stop was malfunctioning. The Aux battery is only $99 at Auto Zone. So it’s totally up to you. Hope that helps.
So my jeep lights and everything turn on, but it won’t start up. Will a bad aux battery cause my vehicle to not start? Plz help thanks
You may have other issues. If the Jeep won’t start period, it could be the main battery (not the aux - there are actually 2 batteries), it could be a bad starter motor, there could be an issue with your alternator. Hope that gives you something you can follow up with and troubleshoot.
Can you please give me the part number for both batteries have to change out the auto stop so I’ll be replacing both
@lynndavis6872 - Here you go:
Duralast Platinum AGM Auxiliary Battery AUX14: www.autozone.com/batteries-starting-and-charging/battery/p/duralast-platinum-agm-battery-bci-group-size-48-760-cca-h6-agm/319460_0_0?rrec=true
Duralast Platinum AGM Battery BCI Group Size 48 760 CCA H6-AGM (with Auto Start Stop): www.autozone.com/batteries-starting-and-charging/battery/p/duralast-platinum-agm-auxiliary-battery-aux14/755654_0_0
Hope that helps. Thanks for watching!
Should have added to my post - mine is the 2017 Grand Cherokee 3.0 diesel.
I only bought it 6 months ago and didn’t know anything about the start/stop - as this doesn't work on my car?
Maybe it's only on petrol versions?
Any ideas?
I recently bought a main battery for my jeep 2 months ago and bought the aux battery a few days ago. in trying to replace the aux, when starting up the car, it says "10 V" . I don't know if my main battery is now drained. We tried putting the old aux back in and it's the same results of a drained main battery.
That does sound like you might have another issue. Depending on the age of your Grand Cherokee, you may have an alternator issue that aided the need to replace your battery. Definitely worth having it checked out.
How did you know you needed to replace the battery? I have the auto start/stop warning light on. Same for you or something different??
So, I went out one night and the Jeep drove just fine. I went to start it the following morning and it was completely dead. Nothing. So I went and purchased a new battery and installed it. Did some more research and it was recommended to replace both batteries at the same time, so that’s what I did, replaced the Aux battery as well the following day.
That’s the reason I switched it out.
Not the ideal answer for your scenario unfortunately, but it is the reason I switched it out.
So I swapped the main battery since the the car didn't have enough juice to start. After replacing main battery still no power. Did yours start after replacing main battery without replacing the auxilary battery?
@@billstinson4937did it work after you switched the aux battery??
How did you transfer the pins on the battery terminal
At the time, I had to take the batteries to Autozone and have them swap over the pins as I didn’t have female torx bits, subsequently I’ve purchased female torx bits.
Thank you very simple step by step....not as easy to perform, but the video helped out tremendously
Thank you for the feedback, I appreciate it! Glad you found the video useful! Yeah, it can be a bit of a pain to get in there, it’s a little tight!
My overland … was slowly dying and I changed her main battery . She didn’t crank nor click . After I changed her battery. When I realized it correlated with the start / stop function as it was not able to charge . Could it be my aux battery not letting her start ? Any ideas ?
That may definitely be the case, however, you may have an issue with your starter motor or your alternator potentially. Replacing the AUX battery is one of the cheaper fixes here, at only $100 or so. Mine wouldn't crank over at all or click when I had this issue, I did replace the main battery first and it did turn over after that. I chose to replace the AUX battery the following day to keep them both within the same time frame. Hope that helps.
Can you show how to replace spark plugs?
@juniorgarcia114 - Hey there, thanks for watching, I appreciate it. Unfortunately, I no longer have the Jeep Grand Cherokee. My channel now has a lot of videos of my wife's 2021 Ford Bronco modifications, and of my 2024 Corvette Convertible, which I am slowly but surely working on as well. Again, thanks for watching, and good luck with your project!
Excellent step by step instruction! You made replacement seem simple. I had my battery replaced recently and now my auto start/stop disable dash light stays on. Did they forget to connect something or do I need to "reset" something in my control panel?
Thank you, I appreciate it. So, as far as I am aware from the research I’ve done, the control module for the Start/Stop feature is on the negative terminal of the battery. You can technically disable the Start/Stop feature by disconnecting it, but it will leave that dash light on.
So yes, I would double check the connections to the AUX battery and make sure they are fully seated. I did NOT have to reset anything after replacing the battery.
And for frame of reference, I replaced the main battery the day before, without issue. So both batteries were new and didn’t have to be reset. Hope that helps.
I have the same problem after replacing the aux battery. Did you find the issue.
So I purchased a jeep 2016 there was a light with the letter A and a circle around it they had it looked at and said it was the small battery they replaced said the light letter A would go away after driving for while if that was even what caused it that’s what mechanic said it was do you know if the battery would cause that light it does say start stop unavailable??
Yes, the battery is one of the things that can cause that light. Ours was a 2018 and at the time I recorded this video, the battery was 3 years old and the batteries were in need of changing.
Now if you look at the connection for the AUX battery, there is also a controller that sends a signal about the start stop system. You can actually disconnect it and disable the start stop that way. So if there is any damage to that connector then that would throw the error as well.
Did you have to use a memory box or could you just replace the batteries without any damage to the memory?
I simply replaced the batteries, no problem at all. No additional items were needed and had no issues once connected back up. Hope that helps.
Love the step by step instructions, my aux just went out 3 days ago I went and bought a new but when I attempted to replace it I notice the two pin screw where terminal is how did you get to transfer those two screws ?.
So, when I realized that, I went back to Autozone and they swapped them over for me. However since then I purchased a set of inverted torx bits so I can switch them out in the future. Here is a link to a set: amzn.to/3NsV04t
I was told I had to swap them myself! Lucky you lol. This is now my 3 set of battery swaps. So i swap them in my sleep now. Ha
@@jamn2boost Oh wow, that sucks, sorry to hear that, but at least you have it taken care of now! I have purchased female torx bits now for future use!
Female Torx bit. E5 size
How do you know its the aux battery when the start stop system warning light is in?
The AUX battery is the one that controls the accessories when the Start/Stop function is active, it keeps the accessories running when the engine turns off. It's a good rule of thumb to replace both batteries at the same time.
Thank you- But what I’m asking is if that light is on on your dash that there’s a problem how do you know that it’s not some thing else within that start stop fault system
@@Michelle-gv3ry Apologies for not answering your question properly. Well, without testing anything, it's hard to determine what the issue is. You could go to Autozone and they will read the codes in the vehicle and they might be able to let you know.
That is what I did when I had the issue with my ESIM Module that failed in another one of my videos, I simply went to Autozone and they pointed out what the issue was.
Hope that helps a little better.
As I recall on my 2018 Jeep Grand Cherokee, the message center says something along the lines of "Start/Stop Not Ready, Auxiliary Battery Low".
Is it necessary to disconnect the main battery? Or can you just remove the auxiliary without touching the main to avoid deleting the memory?
In all honesty, I don’t have a good answer for you. In my research before tacking this, each application recommended disconnecting the main battery during this process. I personally had just replaced the main battery the day before replacing this auxiliary battery, so it wasn’t a concern for me. Wish I could give you a categorical answer, but my research had me disconnecting the main battery as well to do this.
While the main black lead is connected, touching anything metal on the car with the flopping around red loose lead will arc and blow fuses. To avoid that disconnect both black leads before any red ones.
My start/stop wasnt working so i replaced the batteries now i get a low voltage message despite the new batteries. Even swapped out thenlow voltage sensor and still get the same message
Sorry to hear that. I am not sure what would cause that. The only thing I can think of is to double check the tightness of the connections. I also do recall that you had to remove the terminals in the same order as the video and put them back in the same order as the video. That might help. You may have an alternator issue, if you are still getting a low voltage message. Or maybe there is an issue with your Start Stop switch itself, maybe someone disabled it from behind? (that answer assumes you are not the original owner). That's about all the advice I've got. Hope it helps.
What issues were you having that made you change the battery? I’m having an extended crank issue that only does it when I start the vehicle manually. Never does it with remote start.
The problem I had was that the night before, nothing was wrong at all with the Jeep. The following morning I went to start it up to go for inspection and it was completely dead. Went and changed the main battery and the following day decided to change the AUX battery as it’s advised to change them both at the same time. It was purely precautionary for the AUX battery.
@jermainewilliams did you figure out your issue ? I’m having the same issue on my 2017 . Stop/start is unavailable and getting extended crank on first start up .
See response above.
I didn't change the top post or pins as you did a few years back. Is the reason for changing the pins due to OEM products vs none OEM products or does it really matter?
@williamsmith151 - Great question, the reason for switching the pins over is because the new battery I picked up did NOT have the pins installed. I had to remove them from the OEM battery and insert them into the new battery. Took about 5 mins. Here's the kit I used, you need to have some female torx bits: amzn.to/3AG3ToN
I forgot to remove the pins from the auxiliary battery, where can I get them?
@@romangr17 - You might try Autozone, or Batteries Plus, and failing that, potentially the dealership. That's my thought at least. Good luck!
does a durango has an auxiliary battery?
Thanks for watching. The Dodge Durango and the Jeep Grand Cherokee are essentially the same platform, so depending on the model, if it has the Auto Start/Stop feature, then I would assume that it does. It should be easy to slide your passenger seat forwards, lift up the plastic cover and see if there are two batteries in that space. But presumably, you will have an Aux battery under there. Good luck!
Good video. You should cover the negative terminal so it doesn't make contact with the negative cable.
Thanks for the feedback, I appreciate it, and thanks for watching! Glad you found the video useful!
How do you skip the size of rhe retaining bolt
Apologies, at 3:35 I mention that it’s a 10mm retaining nut. I’m not a professional at this, just trying to help!
How did you get your chair to fold flat like that - I have electric seats. Thanks
Hi Amanda, our Grand Cherokee is the Altitude model, so only has a powered driver seat. The passenger seat is manually operated which means it can fold flat like that.
Super super informative and instructional! Awesome my guy!
Thanks for the feedback, really appreciate it! Glad you found the video useful!
I change the battery,but the A! LIGHT STILL ON? HOW I TURN OFF
@oscarnadal1223 - When you replaced the battery, did you remove and reconnect the terminals in the same order as I showed? You need to make sure on the MAIN battery (not the AUX) that the controller module is attached (you'll see it on the negative terminal, it's like a 2" black box). If that is not connected properly, you will still get the 'A' symbol on the dash - leaving that disconnected is the cheat way to get around the 'A' system, but leaves the symbol on the dash. Also - there is a button on the dash, down low in the center that turns on and off the auto start stop, you may need to press that a couple of times to get the system to sync back up. Outside of that, you may have an issue that is still causing that to happen. Good luck.
How do you replace the pins!!!
At the time, I took the battery to Autozone and they transferred them over for me. However since that time, I purchased female torx bits to that I can switch them out again in the future if need be, by myself. Hope that helps.
Hi recently followed that step by step but unfortunately when i turned the truck back it was given my all kinds of lights on and it won’t fucntion properly. Do I need to take it to the dealer for a computer reset? Help!!!
I would slide the passenger seat forward, and check that nothing is causing it to arc at all. Check if you have any pinched wires. Check that you have the terminals tightened down and that one hasn’t come loose. Is the battery flat (horizontal) and tightened down properly. Did you reattach the vent tube?
I’m just spitballing here as it’s been over a year since I replaced it and haven’t had to recheck it since.
@@CUPRADESIGN do the vent hose have anything to do with starting the vehicle?
@@dawnhale7542 The vent hose is there to help any build up of gases from the battery escape. The vent hose shouldn't stop the vehicle from starting, however, if the vent hose isn't connected, then there is the chance of gasses building up and the potential for an explosion in extreme cases. Definitely worth checking out.
I had to get a jump this morning. How do I know if it’s the second battery?
Sorry to hear that. So, as far as I know, the start/stop battery lasts about 4 years. So depending on the age of your vehicle, that could be a factor. However if your vehicle was ‘dead’, it’s more than likely it was your main battery.
When mine died, I replaced the main battery first and our Jeep fired right back up afterward doing so, so there was still charge in the Aux battery.
It is, however, recommended to replace the Aux start/stop battery at the same time so that you can keep track of it for your records, but also only have to be under the passenger seat once, especially as you have to remove the Aux battery first to get to the main battery. This information came from the Jeep dealership.
I paid $250 for the main battery and $100 for the Aux battery at Autozone (dealership wanted $900!). I changed them both myself at the same time (a day apart for me) for added piece of mind. Hope this helps and good luck.
@@CUPRADESIGN Thank you for your help. I’m about to change the main one and see what happens🙏
@@Bmore_Eastside_Raised No problem at all. Both of the batteries are straightforward to replace. Good luck!
How to remove the pins on the battery?
@Mori11116 - I ended up taking the battery back to Autozone and they did it for me. You need female torx bit, which I didn't have. I did end up purchasing some and you can get them here: amzn.to/468ESys
Does this make the car sputter?
No, the Aux battery wouldn’t make the car sputter. That sounds like it’s more of a mechanical issue. Sorry I can’t be of more help.
So I took my 2019 grand Cherokee to jiffy lube for battery change absolutely nothing wrong with the jeep bought directly from the dealer wit 40,000 miles now it seem like those guys didn’t know what they were doing cause they seem a bit confused when I go to pick my jeep up it wouldn’t even turn on like literally nothing happens can’t turn it on for nothing in the world just all the lights in the jeep start blinking a lot was it the change of battery that caused the malfunction? Like they said the computer blew on it & im trying to figure out if their at fault for that cause there was absolutely nothing wrong wit my jeep when I brought it there now she’s completely dead don’t respond to anything
Woah, sorry to hear that. I’m no technician as I’ve mentioned a few times in my comments, but that sounds to me like an issue with Jiffy Lube, if the Jeep was working fine on the way in and now doesn’t work at all.
Did you have both batteries replaced at the same time or just the AUX battery? I replaced both of mine within a day of each other.
Well done demonstration video
@JamesTierney90 - Awesome! Thank you - glad you found the video useful and really appreciated you taking the time to watch it! Means a lot!
I cannot find a source for the aux batter
Here’s a link to the one I purchased: www.autozone.com/batteries-starting-and-charging/battery/p/duralast-platinum-agm-battery-aux14-group-size-aux14-200-cca/755654_0?rrec=true
Great Video! Thank you.
Thank you! Appreciate the feedback and glad you found it useful!
Great video! Did you need to use a battery registration tool? I was told when replacing either battery use must update the battery info in the vehicle's computer
Thank you, I appreciate it! Glad it helped you out.
I didn't need to use any kind of battery registration tool when replacing them. When scrolling through the vehicles information center, the battery information automatically populated, i.e. I was able to see the battery's status. I watched a few videos as well, and didn't see any that required the use of a battery registration tool. It's been a couple of months now since I replaced the batteries, and I've monitored the battery's charge status without issue. However, for your peace of mind, and if you have a battery registration tool, it wouldn't hurt to do it, but it's not something that I did at this time, nor had I heard of to be honest.
@@CUPRADESIGN Thanks. I have searched online and through the Jeep manuals and nothing about battery registration for Jeep 2018. Just professional installation required. I have 2018 Jeep Laredo and was told by the dealership and auto parts stores the battery must be registered (updated) to the battery control module to prevent possible damage over time and may void warranty. Below is a TH-cam explanation.
th-cam.com/video/TGKohKZHzr0/w-d-xo.html
@@rumrunner23 I appreciate the link, thank you! Agreed, I've looked online and don't see anything about the battery registration for a 2018 Jeep Grand Cherokee either. After you mentioned it, I did a dig around online as well. The dealership wanted $900 to replace the two batteries, so I decided to do it myself instead for just a little over 1/3 of the price.
Same with my ESIM module replacement video. The dealership wanted $495 to replace that module. The part was $32 and I replaced it in 15 mins.
@@CUPRADESIGN Ha! Yeah the Jeep dealership said it would be a minimum $150 labor, $280 for main battery and $145 for the auxiliary battery so I started looking for a replacement battery and found out about the registration requirement. It might not be necessary for 2018 models. Its good to know you haven't had any issues. Your video was good and will be helpful if I decide to chance it and replace the batteries myself. I will let you know if I find out any more about the registration requirements for 2018 Jeep.
@@rumrunner23 Thanks again for the compliment on the video. I replaced the main battery the day before, but I didn't record a video. This video was one of my first how to videos after deciding to start creating some content. One word of advice, I purchased the battery from Autozone, and the terminal pins in the auto start/stop battery don't come with the new battery, you have to transfer them over from the OEM one. That required a female torx bit. I ended up taking both batteries back to Autozone and have them transfer the terminal pins. After that, I purchased my own female torx set, for future use. This is the set I purchased, if it helps: amzn.to/3J1IRkp
Thanks for this - searched for ages to find it. I'm in the UK - had the main battery changed out at Halfords (correct AGM Start/Stop).
Now the Start/Stop dashboard warning light is permanently on.
I'm wondering if it's the auxiliary battery that's the problem.
Can't find the correct spec in the UK - the best I can find is Yuasa YTX14AH-BS 12V High Performance.
Any thoughts?
So… whilst I’m a Brit, I live in the USA, so this was a challenge. Having a look around, I found this site: m.buycarparts.co.uk/jeep/grand-cherokee-iv-wk-wk2/129356/10142/battery
They show a list of batteries, and this one looks to be the closest to the battery I switched out: m.buycarparts.co.uk/empex/16417477
That one is ‘close’ to the price I paid as well ($99) so it I looking likely that it might be the one. However, as I said, I can’t verify that, living in the USA. Hopefully this helps and thanks for watching!
What happens if I don't put in the auxiliary battery?
@romangr17 - If you don't put in the AUX battery, your vehicle will still start and drive like normal. However, what you may encounter is some accessories may not function properly or not at all. Your Jeep also has a warning light on the dashboard that will illuminate when the battery is starting to fail or missing and will be constantly on.
What size deep socket is that?
Is it a 10 mm or 13 mm. It looks very small
At 1:00 I mentioned/showed that the first deep socket is a 13mm, and then at 1:21 I mentioned/showed that the second deep socket is a 10mm. Hope that helps.
This is wild. I did not know they had a 2nd battery
@jovanies9751 - What's even wilder is that Jeep wanted $900 to replace the two! I did it for less than half of that by doing it myself! Thanks for watching, I really appreciate it, and good luck when switching out your batteries!
Excellent video! Thanks.
@DaSmoov54 - Awesome, thank you! Glad you found it useful and thanks for watching!
Just did this, battery cost 150
Thank you
@leogonzalez-rf1je - Awesome - glad the video helped you out! Thanks for watching, I appreciate it!
Duh... How do you "transfer" the "pins" over to the new battery?????????????
Hey ‘sins’, great question! So in the video I mentioned that I took the battery back to AutoZone and had them do it for me. Subsequently, I needed to order some female torx bits. That’s all you need to be able to transfer the pins over. At the time I never realized that female torx bots were a thing, but they are. So now I have a set for the future. You can pick them up easily on Amazon. These are the ones I ordered: amzn.to/3ZvoV0m
Hope that helps!
E torx socket
This video is very good! Helped me change out the auxiliary battery on my 2017 Grand Cherokee!
Well done, thanks for this guide
Thank you for the feedback Colin, I appreciate it. Glad the video was useful to you!
Thank you for the video.
I also hear the auxiliary battery is there to run some other accessories in the car as well, beside the useless start/stop feature. Can anyone comment on that , please?
I made it a habit to turn off the start/stop as soon as I start my grand Cherokee.
The aux battery strictly keeps everything going when ESS stops the engine. The first mod I did when I bought my WK2 was installing a Smart Stop Start module under the driver seat. It simply retains the last state of the ESS and Sport Mode switches so you don't have to keep turning it off. It's a little pricey but worth it in my opinion, especially if you turn it off all the time anyway. It connects in-line to an existing wiring harness so it takes as long to slide the seat back as it does to install it. I've had it in place for nearly 4 years now.
As Shane mentioned, the Aux battery keeps keeps accessories and computer alive when the ESS stops the engine. The size of the Aux battery is insufficient to provide cranking current to the starter motor anyway. It only is there to keep systems alive when the alternator is not producing anything.
Like you, we turn off the ESS every time we step into the vehicle. (That and the reverse park sensors when pulling out of the garage, as the Jeep wants to auto brake every single time, being a double garage but with two single doors!)
Thank you both for your input.
Why did you have to replace both this and the main battery? Reason I ask is my 2018 would not start and I needed a jump to get it going. Wondering if I need both or just main battery? Sounds like the aux does not have the power to start the vehicle if main is dead. Mine is the original battery so prob time to replace eh?
@@Patriotvb That is exactly the reason. Both batteries were 3.5 years old and it was recommended if you replace on, replace them both. So I did the main battery the day before which is why I found out I needed an Aux battery, so thought I would record the replacement of that one.
The Aux battery is essentially there as a back up battery, but runs some systems like the radio, infotainment, even the AC, but more importantly, the Auto Start/Stop system. It’s charged just like the main battery when driving.
Very helpful, thank you!!
Thank you, glad it helped you out and thank you so much for watching!
That was helpful, thank you
Awesome, so glad you found the video useful. And thank you for the feedback!
Thanks bro! 🎉
Thank you, appreciate it. Thanks for watching and glad you found the video useful!
Why please tell me why does it need to have a auxiliary battery?
I can only guess it's to relieve some of the strain off of the main battery with the constant stop/start process, but I asked the same question of myself when I started having a battery issue! Thankfully the auxiliary battery is only $99 to replace, vs the cost of the main battery.
@@CUPRADESIGN I am thinking that they should be replaced as a pair. It just cost me $259.98 for the pair. The main battery is only 650 amp. Couldn't they just put a bigger main battery
@@oldman6495 I totally agree, I ended up replacing both of mine within a day of each other just to be safe. I had replaced the main battery the day before, I just didn't record changing that one!
I can understand 'some' logic with the aux battery, that gets used more often for the stop/start could wear out quicker, and can be replaced cheaply and not leave you stranded, as all you would really lose is the capability of the stop/start feature. I would be happier to not have the feature at all!
@@CUPRADESIGN Its my wifes vehicle, she drives 30 miles to work and has to stop at one stop sign. if she stops LOL Not a feature she uses
@@oldman6495 The same here! We have just made it an instinct to turn off the Auto Start/Stop system every single time we get into the Jeep. It's just habit now!
I wonder if a guy could just move the positive and negative wires from the Aux battery to the main battery and just get rid of the Aux battery all together.
So yes, technically, you can do as you describe - however - if you do, you will have the ‘A’ in a circle light on your dash for the stop start system not working, and also, if your battery dies, you won’t have access to anything (I don’t believe) as there will literally be no auxiliary power at all. The aux battery takes care of more than just the annoying start stop system.
Now take this info with a pinch of salt, I am NOT a mechanic, I merely pretend (poorly) to portray one on the internet.
I could only get the Aux-14 battery from my dealer and it had different fittings
I mentioned in the video that the pins in the AUX battery need to be switched over. You need a female torx bit to be able to replace the pins from the old battery to the new battery. I didn't record that part as I ended up having Autozone do that for me, but I did mention it.
En español una camioneta cherokee 2015 cómo se quita
Hasta donde yo sé, la batería del Grand Cherokee 2015 está en el mismo lugar. No todos los modelos del Grand Cherokee tienen dos baterías.
(As far as I know, the 2015 Grand Cherokee battery is in the same place. Not all models of the Grand Cherokee have two batteries.)
Thank you so much it's so helpful
That's great that you found this video useful, thank you!
Thanks you video help me 👍
@skytenius - Thanks for the feedback, I appreciate it, glad you found the video useful and thanks for watching!
Thank you 🎉❤
@hollyfernandez25 - No worries, thanks for watching and glad you found the video useful!
Thanks!
How to remove the pins
I purchased a set of female torx bits to remove the pins. This is the set that I purchased: amzn.to/30M7fVH
They are in there pretty good, but a little effort and they came right out. Hope that helps.
What size torx?
@@TheBudaCrunk E5
Thanks!!
You’re welcome! Glad you found the video useful!
nice vid
Thank you, appreciate it! Thanks for watching!
Awesome video - dealer wanted $640 for that
@daveluhrs1504 - Thanks for the feedback! I was quoted $960 to replace both batteries, decided to do it myself for ⅓ of the cost! Glad you found the video useful! Thanks for watching!
No lame into? quick and to the point? you Sir get a like and a Subscribe!!!!
Hahaha! Thanks, I appreciate it! And thanks for watching!
Why would you do this ? I hate that system..I guess mine aux battery is dead because my 2018 JGC no longer requires me do press the disable button every fucking time I drive...
@mike8989ful - I did this because I didn't want to see the annoying light on the dash every time I got into the vehicle. But you are right, you can disconnect the AUX battery and not have to press the stop start function anymore each time you get in, but you will have amber that (A) symbol on the dash. Thanks for watching, I appreciate it!
How did you move the seat out of the way. This video is useless
You simply slide the seat as far forward as it will go on the runners. That’s all you need to do. You don’t need to remove it or anything else. That gives plenty of access to the battery cover panel. I show this exact step at the 0:14 mark in the video and explain you slide the seat forward to get to the access panel underneath.
"How did you move the seat out of the way" 😂😂 Take your car to a mechanic bro. You shouldn't even attempt to wipe your butt on your own.
Thank you very much. Super helpful!
You’re so welcome! Thanks for watching and so glad that you found the video useful!