2014+ Jeep Cherokee Forums banner

21 - 40 of 46 Posts

·
Registered
Joined
·
104 Posts
Good ! Fingers crossed...

About charging : a 20 minute drive may not be enough, but your boat battery charge overnight... that's the ticket ! Once you get back to driving more, it would still be a good idea to hook up the little charger once every other week, for an overnight top up. This practice can an dwill add a few years to a Cherokee's battery life, especially if you don't drive a whole lot..
Update with my problem: After recent service by dealer, ESS worked only for a couple of days. After which, the ESS Unavailable warning pops up on the EVIC and says ESS needs servicing. So I'm back to square one, as expected.
 

·
Registered
Joined
·
9,101 Posts
Update with my problem: After recent service by dealer, ESS worked only for a couple of days. After which, the ESS Unavailable warning pops up on the EVIC and says ESS needs servicing. So I'm back to square one, as expected.
Ok...

So if you can, try and charge the battery yourself overnight, at home. If you have a working ESS the following day, then a bad battery is a strong possibility. When was the original battery replaced ?

Not driving the Jeep a lot may drain it so that ESS won't work for a little while, but if the battery is healthy then it should charge right back up on a 20-30 minute drive. But getting the "Service Stop/Start" message is not typical of an undercharged battery... which is why I suspected the IBS. And now they say they tested it (IBS) so we have to believe they did it right.

So 2 things : charge the battery at home as often as you can and see if this has an impact on ESS. If it does, I would suggest you go to a shop or auto parts place (not the dealership) to have the battery load tested ; it's a 2 minute test. If you do that, please get a printout of the results. If you still get ESS errors with a home charged healthy battery (if healthy), then... I'd have to guess the IBS is really in need of replacement.
 

·
FCA Customer Support Group
Joined
·
1,358 Posts
I’ve been having ESS issues for more than a year on my 2019 Overland. I just had it to the dealer and found the battery was bad. It’s only 2 years old with 14K miles. Fortunately, it’s still under warranty. Mine has one battery. I thought it was the Grand Cherokee that had a separate battery for a ESS.
Hello @Old Car Guy
We are sorry to hear that your ESS system has had cause for concern. In the future, please know that our team is available for additional assistance during your dealer service. We are only a private message away!

Kathryn
JeepCares
 

·
Registered
Joined
·
104 Posts
Ok...

So if you can, try and charge the battery yourself overnight, at home. If you have a working ESS the following day, then a bad battery is a strong possibility. When was the original battery replaced ?

Not driving the Jeep a lot may drain it so that ESS won't work for a little while, but if the battery is healthy then it should charge right back up on a 20-30 minute drive. But getting the "Service Stop/Start" message is not typical of an undercharged battery... which is why I suspected the IBS. And now they say they tested it (IBS) so we have to believe they did it right.

So 2 things : charge the battery at home as often as you can and see if this has an impact on ESS. If it does, I would suggest you go to a shop or auto parts place (not the dealership) to have the battery load tested ; it's a 2 minute test. If you do that, please get a printout of the results. If you still get ESS errors with a home charged healthy battery (if healthy), then... I'd have to guess the IBS is really in need of replacement.
I replaced the original battery in May of last year with an OEM from Chrysler. In the previous trips to the dealer they said they checked the battery and it was fine. Since the battery is virtually new I don't think there should be a problem with the battery. So all components of the ESS system seem to check out but they don't seem to work that well together.

As update from my previous post, yesterday morning the ESS came on, as it should. On the trip home later that morning (after a few hours of sitting), I get the Unavailable/Service ESS warning. After getting back home, and going out again (about 1/2 hour later), ESS came on again, no Unavailable/Service ESS warning. So things are randomly intermittent.

Dealer is going to have a look at it again this morning. Sounds like they're going to do a "deep dive" into the system because they said they are going to have a tech check electrical circuits in the system to make sure they are operating properly and there are no weaknesses. We'll see. At the end of the day, I'm convincing myself that I should learn to live without. Afterall, vehicle still goes from point A to point B.
 

·
Registered
Joined
·
9,101 Posts
I replaced the original battery in May of last year with an OEM from Chrysler. In the previous trips to the dealer they said they checked the battery and it was fine. Since the battery is virtually new I don't think there should be a problem with the battery. So all components of the ESS system seem to check out but they don't seem to work that well together.

As update from my previous post, yesterday morning the ESS came on, as it should. On the trip home later that morning (after a few hours of sitting), I get the Unavailable/Service ESS warning. After getting back home, and going out again (about 1/2 hour later), ESS came on again, no Unavailable/Service ESS warning. So things are randomly intermittent.

Dealer is going to have a look at it again this morning. Sounds like they're going to do a "deep dive" into the system because they said they are going to have a tech check electrical circuits in the system to make sure they are operating properly and there are no weaknesses. We'll see. At the end of the day, I'm convincing myself that I should learn to live without. Afterall, vehicle still goes from point A to point B.
I've seen a few members here install new batteries that turned out to be faulty (bad cell), so it is a possibility, though not very likely. The theory there is somewhere going on "deep inside" electrically is possible and, if true, they may or may not find it.

Is ESS a critical system ? Not at all. Is it Ok to drive without ? Sure. If the underlying issue deteriorates with time, you'll know. For now, as long as the dealer doesn't run up the labor costs on you excessively...
 

·
Registered
Joined
·
104 Posts
I've seen a few members here install new batteries that turned out to be faulty (bad cell), so it is a possibility, though not very likely. The theory there is somewhere going on "deep inside" electrically is possible and, if true, they may or may not find it.

Is ESS a critical system ? Not at all. Is it Ok to drive without ? Sure. If the underlying issue deteriorates with time, you'll know. For now, as long as the dealer doesn't run up the labor costs on you excessively...
Its still in there today so we'll hear back from them today. Diagnostic charge was paid last time so this time it is waived. To me, if it doesn't get fixed this time, I'm done with trying to get it fixed. The system is not critical, so I'll just chalk it up to one of the things they can't fix and move on.
 

·
Registered
Joined
·
3 Posts
I have never owned a Jeep previously to purchasing a 2017 Cherokee with 14,000 miles on it this week. Yesterday the same start/stop indicator light that is being discussed in this thread appeared on my dashboard. I have only a month left on the warranty and given I have also just received a message on the vehicles monthly health report from Uconnect that there is a transmission control module recall, I am really nervous about my purchase. I made an appointment for tomorrow with my local dealer to get it looked at but this is a bad start!
 

·
Registered
Joined
·
9,101 Posts
I have never owned a Jeep previously to purchasing a 2017 Cherokee with 14,000 miles on it this week. Yesterday the same start/stop indicator light that is being discussed in this thread appeared on my dashboard. I have only a month left on the warranty and given I have also just received a message on the vehicles monthly health report from Uconnect that there is a transmission control module recall, I am really nervous about my purchase. I made an appointment for tomorrow with my local dealer to get it looked at but this is a bad start!
Hi there and welcome to JCC. Oh and congrats on the new to you 2017 Cherokee :)

First : the ESS situation is something that is usually easily fixed. The situation @RandyC is facing is rather rare, but ESS problems are not rare at all. Does the message say : "Stop/Start unavailable Battery charging" ? Or "Service Stop/Start" ? Either way, there is a strong possibility the battery will need to be replaced. Usually, the battery is covered under basic 3/36 warranty, so I hope they will cover it under the agreement/contract you have with them. If it turns out to be the battery and they won't cover it, let us know and we'll point to less expensive (identical) batteries at different auto parts stores.

Second : a transmission module recall is not something you need to stress over. There have been many flashes to different modules done on recalls for these Cherokees, and they usually just fix minor issues with programming. It's actually a good thing you are getting this done, you may find the driving experience even better after the flash.

HTH
 

·
Registered
Joined
·
3 Posts
Hi there and welcome to JCC. Oh and congrats on the new to you 2017 Cherokee :)

First : the ESS situation is something that is usually easily fixed. The situation @RandyC is facing is rather rare, but ESS problems are not rare at all. Does the message say : "Stop/Start unavailable Battery charging" ? Or "Service Stop/Start" ? Either way, there is a strong possibility the battery will need to be replaced. Usually, the battery is covered under basic 3/36 warranty, so I hope they will cover it under the agreement/contract you have with them. If it turns out to be the battery and they won't cover it, let us know and we'll point to less expensive (identical) batteries at different auto parts stores.

Second : a transmission module recall is not something you need to stress over. There have been many flashes to different modules done on recalls for these Cherokees, and they usually just fix minor issues with programming. It's actually a good thing you are getting this done, you may find the driving experience even better after the flash.

HTH
Hi there and welcome to JCC. Oh and congrats on the new to you 2017 Cherokee :)

First : the ESS situation is something that is usually easily fixed. The situation @RandyC is facing is rather rare, but ESS problems are not rare at all. Does the message say : "Stop/Start unavailable Battery charging" ? Or "Service Stop/Start" ? Either way, there is a strong possibility the battery will need to be replaced. Usually, the battery is covered under basic 3/36 warranty, so I hope they will cover it under the agreement/contract you have with them. If it turns out to be the battery and they won't cover it, let us know and we'll point to less expensive (identical) batteries at different auto parts stores.

Second : a transmission module recall is not something you need to stress over. There have been many flashes to different modules done on recalls for these Cherokees, and they usually just fix minor issues with programming. It's actually a good thing you are getting this done, you may find the driving experience even better after the flash.

HTH
It says Stop/Start unavailable battery charging
 

·
Registered
Joined
·
9,101 Posts
It says Stop/Start unavailable battery charging
Thanks. Chances are very high the battery is not healthy enough for ESS anymore. In other words, battery might still test "good" with older testing equipment, even "good" with modern equipment, but the health aspect is critical for Cherokee batteries and ESS. So while many testers show "good" with a battery testing above 50% health, these Cherokees require somewhere near 60% minimum. There have been many reports here that some Jeep dealerships tested batteries and said "good", because the tech wasn't familiar with the needs for this particular application, then finally tested it "bad" after one or two return visits. Bottom line is : ask them to load test the battery and ask for the results (printout) so you can show us here, if they insist battery is still "good". Test results will include : state of charge, state of health (super important here), CCA remaining and more that are less important/critical.

When these batteries are on the decline, we usually notice ESS taking longer and longer to work after seeing "Battery charging" messages, up to ESS no longer working even after a long drive. Charging the battery at home usually allows ESS to work for a bit : this is a clear sign the battery is slowly dying. If you push it over time, like I did (I did this on purpose), you'll eventually get into some funky problems like 4WD tempporarily unavailable, steering assit unavailable, and the lisat goes on and on... Final stage, when battery is functionnally dead, is you being stranded, Jeep quits and refuses to start., and this can happen while rolling.

If you want, you can get your battery load tested for free at most auto parts places, like Autozone, Advanced Auto Parts, etc... Again, if you get this done, ask for the printout and share here, unless they flat out tell you it needs to be replaced..
 

·
Registered
Joined
·
3 Posts
Thanks. Chances are very high the battery is not healthy enough for ESS anymore. In other words, battery might still test "good" with older testing equipment, even "good" with modern equipment, but the health aspect is critical for Cherokee batteries and ESS. So while many testers show "good" with a battery testing above 50% health, these Cherokees require somewhere near 60% minimum. There have been many reports here that some Jeep dealerships tested batteries and said "good", because the tech wasn't familiar with the needs for this particular application, then finally tested it "bad" after one or two return visits. Bottom line is : ask them to load test the battery and ask for the results (printout) so you can show us here, if they insist battery is still "good". Test results will include : state of charge, state of health (super important here), CCA remaining and more that are less important/critical.

When these batteries are on the decline, we usually notice ESS taking longer and longer to work after seeing "Battery charging" messages, up to ESS no longer working even after a long drive. Charging the battery at home usually allows ESS to work for a bit : this is a clear sign the battery is slowly dying. If you push it over time, like I did (I did this on purpose), you'll eventually get into some funky problems like 4WD tempporarily unavailable, steering assit unavailable, and the lisat goes on and on... Final stage, when battery is functionnally dead, is you being stranded, Jeep quits and refuses to start., and this can happen while rolling.

If you want, you can get your battery load tested for free at most auto parts places, like Autozone, Advanced Auto Parts, etc... Again, if you get this done, ask for the printout and share here, unless they flat out tell you it needs to be replaced..
Thank you so much - tons of help!! I'll get the battery load tested today.
 

·
FCA Customer Support Group
Joined
·
1,358 Posts
I have never owned a Jeep previously to purchasing a 2017 Cherokee with 14,000 miles on it this week. Yesterday the same start/stop indicator light that is being discussed in this thread appeared on my dashboard. I have only a month left on the warranty and given I have also just received a message on the vehicles monthly health report from Uconnect that there is a transmission control module recall, I am really nervous about my purchase. I made an appointment for tomorrow with my local dealer to get it looked at but this is a bad start!
We're sorry to hear about this. If you need any additional assistance throughout your service visit, please send our team a private message. We would be happy to connect you with a Case Specialist to assist.
Alex
Jeep Cares
 

·
Registered
Joined
·
104 Posts
I've seen a few members here install new batteries that turned out to be faulty (bad cell), so it is a possibility, though not very likely. The theory there is somewhere going on "deep inside" electrically is possible and, if true, they may or may not find it.

Is ESS a critical system ? Not at all. Is it Ok to drive without ? Sure. If the underlying issue deteriorates with time, you'll know. For now, as long as the dealer doesn't run up the labor costs on you excessively...
Hi Mark, here's the latest on my ESS problem and probably the last word for me since I'm fed up in dealing with this.

The dealer did a bunch of tests over a period of a few days to check out the various components of the ESS system, including replacing my battery with a new one. Their bottom line is that all the components check out but the the battery. Recall, this battery was new in May 2019. Their explanation is that each time the ESS is engaged, the power used to restart the engine depletes the charge in the battery. Since many of my trips are short, the battery doesn't get a chance to fully recharge. So the SOC for the battery is low. They replaced the battery under warranty. They suggest that for short trips, I disable the ESS (button on dash) so that it won't engage and the battery does not get depleted with an engine restart.

I can understand if I keep getting "ESS not ready due to battery charging" their explanation makes sense. But when you get the "ESS Unavailable Service ESS System" warning right after the ESS was working normally, I find their explanation hard to believe. In any case, what I will do is use the disable ESS button and at least that should stop the "ESS Unavailable Service ESS System" warning alarm. Not the best option but it is an option compared to changing my driving habits to suit the limitations of the vehicle.
 

·
Registered
Joined
·
9,101 Posts
Hi Mark, here's the latest on my ESS problem and probably the last word for me since I'm fed up in dealing with this.

The dealer did a bunch of tests over a period of a few days to check out the various components of the ESS system, including replacing my battery with a new one. Their bottom line is that all the components check out but the the battery. Recall, this battery was new in May 2019. Their explanation is that each time the ESS is engaged, the power used to restart the engine depletes the charge in the battery. Since many of my trips are short, the battery doesn't get a chance to fully recharge. So the SOC for the battery is low. They replaced the battery under warranty. They suggest that for short trips, I disable the ESS (button on dash) so that it won't engage and the battery does not get depleted with an engine restart.

I can understand if I keep getting "ESS not ready due to battery charging" their explanation makes sense. But when you get the "ESS Unavailable Service ESS System" warning right after the ESS was working normally, I find their explanation hard to believe. In any case, what I will do is use the disable ESS button and at least that should stop the "ESS Unavailable Service ESS System" warning alarm. Not the best option but it is an option compared to changing my driving habits to suit the limitations of the vehicle.
Hmmm. From what I've seen and experienced, ESS will throw "battery charging" when battery health (including SOC - state of charge) is too low for ESS engagement. That's it, no "Service ESS"...

So I don't know what's going on with yours right now.

Experiment with disabling ESS some of the time and see what happens. We'll take it from there I guess ;)
 

·
Registered
Joined
·
158 Posts
Last couple of weeks I have been getting the "Service ESS " message. On my Limited, disabling ESS at the start of the trip does NOT prevent the "Service ESS" message from appearing. Just going to live with the loud chime every time message appears.
 

·
Registered
Joined
·
104 Posts
Hmmm. From what I've seen and experienced, ESS will throw "battery charging" when battery health (including SOC - state of charge) is too low for ESS engagement. That's it, no "Service ESS"...

So I don't know what's going on with yours right now.

Experiment with disabling ESS some of the time and see what happens. We'll take it from there I guess ;)
Hey Mark, I took your advice and tried driving with the ESS disabled. I've been doing that for a couple of days now. Today, with it disabled, I get the Service ESS warning again. Go figure. As well, it pops up when the vehicle is still in motion, so not under braking? I think I need an exorcist.
 

·
Registered
Joined
·
9,101 Posts
Hey Mark, I took your advice and tried driving with the ESS disabled. I've been doing that for a couple of days now. Today, with it disabled, I get the Service ESS warning again. Go figure. As well, it pops up when the vehicle is still in motion, so not under braking? I think I need an exorcist.
So you and @roger33 are experiencing pretty much the same thing. Free beer to the one who gets to the bottom of this first 😁🍻

Kidding aside... I wish I knew what was going on. IBS ? Bad connection/ground somewhere ? BCM needing a flash ?
Hmmm.
 
21 - 40 of 46 Posts
Top