service stop/start system warning

[Will]

I had this warning sometimes when I turn off the stop/start function. Does anyone has the same issue? Please see the warning message in the below picture.

 

[ai5580]

its probably a weak battery... take it in.

 

[SweetAndLow]

I had this warning sometimes when I turn off the stop/start function. Does anyone has the same issue? Please see the warning message in the below picture.View attachment 3530

Happens to us all the time. In the 12 months we have owned the GCL the start/stop has worked for maybe 2 months total. It will go months without working and then one day it will just work. I suspect it's related to driving style, we do not use the highway much. Normally drive between 0 - 25mph 99% of the time.

 

[Texas93]

Had this happen to us and got told that it is due to a faulty hood latch. Have to take it back in to get it replaced. Also still do not have functional High beam headlights lol. way to go @JeepCares

 

[eleceng1979]

Multiple post about the start stop system, dead batteries, bad batteries, etc…

There are 2 batteries in the V6 system and they constantly fail on new vehicles owned less than a few months. The only way you kill batteries is chronic over/under charging or constantly pulling too much current overloading them. Or worse, leaving it in a low charge state while trying to use it. This is a design issue folks.

IMO and per engineering common sense, 2 different sized batteries in parallel, being charged together will always not charge the the larger starting battery correctly to full charge OR it will charge the large battery correctly and then overcharge smaller. It is simple physics. Disabling the start/stop via the button doesn’t change the fact it still doesn’t charge them correctly, only extends the interval between failed batteries.

Try to fill a 5G bucket and 1G bucket plumbed together from the same hose, tell me how that works out.

I call BS on the hood latch. My V8 battery (1) was dead one morning and they blamed it on a rubber Matt blocking the rear hatch by 0.1” from closing fully. Told me to remove the Mopar factory accessory from the area… it was dead again 4 more times after this. Had to install a battery tender permanently in order to have time to sell it.

 

[SweetAndLow]

Multiple post about the start stop system, dead batteries, bad batteries, etc…

There are 2 batteries in the V6 system and they constantly fail on new vehicles owned less than a few months. The only way you kill batteries is chronic over/under charging or constantly pulling too much current overloading them. Or worse, leaving it in a low charge state while trying to use it. This is a design issue folks.

IMO and per engineering common sense, 2 different sized batteries in parallel, being charged together will always not charge the the larger starting battery correctly to full charge OR it will charge the large battery correctly and then overcharge smaller. It is simple physics. Disabling the start/stop via the button doesn’t change the fact it still doesn’t charge them correctly, only extends the interval between failed batteries.

Try to fill a 5G bucket and 1G bucket plumbed together from the same hose, tell me how that works out.

I call BS on the hood latch. My V8 battery (1) was dead one morning and they blamed it on a rubber Matt blocking the rear hatch by 0.1” from closing fully. Told me to remove the Mopar factory accessory from the area… it was dead again 4 more times after this. Had to install a battery tender permanently in order to have time to sell it.

That's not how batteries or charging work.

 

[Boggswade]

Multiple post about the start stop system, dead batteries, bad batteries, etc…

There are 2 batteries in the V6 system and they constantly fail on new vehicles owned less than a few months. The only way you kill batteries is chronic over/under charging or constantly pulling too much current overloading them. Or worse, leaving it in a low charge state while trying to use it. This is a design issue folks.

IMO and per engineering common sense, 2 different sized batteries in parallel, being charged together will always not charge the the larger starting battery correctly to full charge OR it will charge the large battery correctly and then overcharge smaller. It is simple physics. Disabling the start/stop via the button doesn’t change the fact it still doesn’t charge them correctly, only extends the interval between failed batteries.

Try to fill a 5G bucket and 1G bucket plumbed together from the same hose, tell me how that works out.

I call BS on the hood latch. My V8 battery (1) was dead one morning and they blamed it on a rubber Matt blocking the rear hatch by 0.1” from closing fully. Told me to remove the Mopar factory accessory from the area… it was dead again 4 more times after this. Had to install a battery tender permanently in order to have time to sell it.

After 4 trips to the service department including finally going to a 2nd dealer they finally fixed the ESS start/stop system. It had something to do with the IBS, (intelligent battery sensor). It had to be disconnected overnight and then reset to properly read the battery. There is also a specific way to charge the battery through the sensor or so I’m told. All I know is that it finally works after months of it not working.

 

[eleceng1979]

That's not how batteries or charging work.

Please explain?

Mine explanation is here…
https://www.optimabatteries.com/experience/blog/can-i-connect-dissimilar-batteries-in-parallel/

It is bad practice, not approved by any battery manufacturer, and always will result in premature failures. You don’t have to like my comments, my point was that Jeep is plagued with failures of the system due to these facts. Not to mention battery sensors that don’t work, added to prevent the scenarios I described.

I don’t even know why I bother with this site, with so much knowledge already here I obviously am redundant.