MattLaurence
Well-Known Member
- Thread starter
- #1
Hello All,
I've read around on a few threads looking for this issue, but haven't found anyone with this specific recurring issue.
2019 JLU Sport S, Manual, tow package, 52K miles on the clock.
Issue is recently ESS has been saying the usual nonsense seen elsewhere "service start stop system" and the ESS warning light comes on. Now, that wouldn't be a problem because I ALWAYS turn it off first thing getting in. But, when this warning comes on, my cruise control no longer functions, which is frustrating on long drives.
My thinking is that the aux battery is failing, but voltage is still 12.5 volts... i have looked for loose wires as others have mentioned, but failed to find any.
I mentioned my Jeep has a tow package because the issue happens more frequently when towing a 1200 lb camper, but happens now pretty regularly when not towing as well. Not sure if that is related...
The only fix I have is turning the jeep off and on, that will let it reset and i can use cruise control until the ESS decides to not work.
Have tried to reproduce issue, but it's at random... sometimes it happens right after start up, sometimes it happens 2 hours into a highway cruise. No idea why.
Any thoughts or advice are appreciated.
Cheers!
I've read around on a few threads looking for this issue, but haven't found anyone with this specific recurring issue.
2019 JLU Sport S, Manual, tow package, 52K miles on the clock.
Issue is recently ESS has been saying the usual nonsense seen elsewhere "service start stop system" and the ESS warning light comes on. Now, that wouldn't be a problem because I ALWAYS turn it off first thing getting in. But, when this warning comes on, my cruise control no longer functions, which is frustrating on long drives.
My thinking is that the aux battery is failing, but voltage is still 12.5 volts... i have looked for loose wires as others have mentioned, but failed to find any.
I mentioned my Jeep has a tow package because the issue happens more frequently when towing a 1200 lb camper, but happens now pretty regularly when not towing as well. Not sure if that is related...
The only fix I have is turning the jeep off and on, that will let it reset and i can use cruise control until the ESS decides to not work.
Have tried to reproduce issue, but it's at random... sometimes it happens right after start up, sometimes it happens 2 hours into a highway cruise. No idea why.
Any thoughts or advice are appreciated.
Cheers!
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