Sponsored

ESS quit working

Hinxster

Well-Known Member
Joined
Sep 28, 2018
Threads
15
Messages
54
Reaction score
12
Location
Redondo Beach, CA
Vehicle(s)
2018 Rubicon JL
The ESS (electric start stop) system stopped working on my JLUR today. There are no warning displays and voltage is normal. Does anyone know what might be the cause of this?
Sponsored

 

am1978

Well-Known Member
Joined
Mar 10, 2018
Threads
24
Messages
1,333
Reaction score
1,277
Location
MD
Vehicle(s)
2018 JLU Sahara Bright White, 2018 JLU Sahara HellaYella
Occupation
ā€˜Merica

DanFelix

Well-Known Member
Joined
Dec 22, 2018
Threads
25
Messages
275
Reaction score
124
Location
Riverside, CA
Vehicle(s)
2018 Wrangler JL Sport S
What does the ESS display say on the driver console? If it says battery charging then it might be one or both of the batteries. The system knows when it is not working so I am guessing there is a message.
 
OP
OP

Hinxster

Well-Known Member
Joined
Sep 28, 2018
Threads
15
Messages
54
Reaction score
12
Location
Redondo Beach, CA
Vehicle(s)
2018 Rubicon JL
What does the ESS display say on the driver console? If it says battery charging then it might be one or both of the batteries. The system knows when it is not working so I am guessing there is a message.
I had to scroll to the proper screen. It said battery charging. Took the vehicle to the dealer today. They tested both batteries and found that the main one was bad. Small ESS battery tested fine. Replaced the main battery under warranty and all is well again.
 

Sponsored

jdegrave

Well-Known Member
First Name
Joe
Joined
May 13, 2019
Threads
7
Messages
129
Reaction score
88
Location
Tampa, FL
Vehicle(s)
Kia Forte, Pathfinder, JLU Rubicon
Occupation
Director Financial Systems Support & Governance
I had to scroll to the proper screen. It said battery charging. Took the vehicle to the dealer today. They tested both batteries and found that the main one was bad. Small ESS battery tested fine. Replaced the main battery under warranty and all is well again.
I'm having this exact issue right now. My battery has been in a charging status for the last 2 1/2 weeks. Going to the dealer on Tuesday...
 

jespey

Well-Known Member
First Name
John
Joined
Mar 12, 2018
Threads
4
Messages
148
Reaction score
166
Location
St. Augustine FL
Vehicle(s)
2020 JLUR White; 2021 Ford Bronco Sport Badlands
I'm having this exact issue right now. My battery has been in a charging status for the last 2 1/2 weeks. Going to the dealer on Tuesday...
Iā€™m having the same issue. Did yours get fixed?
 

jdegrave

Well-Known Member
First Name
Joe
Joined
May 13, 2019
Threads
7
Messages
129
Reaction score
88
Location
Tampa, FL
Vehicle(s)
Kia Forte, Pathfinder, JLU Rubicon
Occupation
Director Financial Systems Support & Governance
Iā€™m having the same issue. Did yours get fixed?
I did. The main battery needed to be replaced which surprised me. I would have thought it would be the smaller one. The technician said heā€™s actually done quite a few of these. It was done under warranty so nothing out of pocket for me.
 

FWB FL

Well-Known Member
First Name
LArry
Joined
Aug 19, 2018
Threads
3
Messages
181
Reaction score
96
Location
Fort Walton Beach Fl
Vehicle(s)
2018 Wrangler JL unlimited
The ESS (electric start stop) system stopped working on my JLUR today. There are no warning displays and voltage is normal. Does anyone know what might be the cause of this?
Mine did the same, another bad battery, that is 3 of them
 

jdegrave

Well-Known Member
First Name
Joe
Joined
May 13, 2019
Threads
7
Messages
129
Reaction score
88
Location
Tampa, FL
Vehicle(s)
Kia Forte, Pathfinder, JLU Rubicon
Occupation
Director Financial Systems Support & Governance
Mine did the same, another bad battery, that is 3 of them
The tech told me heā€™s seeing quite a bit of this. Not sure if itā€™s a bad batch of batteries or Jeep doesnā€™t have the ESS completely figured out yet. Could be a combination.
 

Sponsored

jespey

Well-Known Member
First Name
John
Joined
Mar 12, 2018
Threads
4
Messages
148
Reaction score
166
Location
St. Augustine FL
Vehicle(s)
2020 JLUR White; 2021 Ford Bronco Sport Badlands
On my wifeā€™s JLUR we noticed the ESS not working, no warning lights but ā€battery chargingā€ on EVIC. Dealer found a code that said the driver seat sensor bad and so they replaced it. Didnā€™t help, so took it back. They couldnā€™t find anything wrong so I reminded them that it simply wasnā€™t working so something was wrong. They looked some more and said both batteries perfect but the IBS needed to be replaced. After they did that, my wife saw that it was working. She promptly shut it off because she hates itšŸ˜†. Hopefully the problem is solved.
 

Johnbuz

Well-Known Member
First Name
John
Joined
Oct 24, 2017
Threads
4
Messages
108
Reaction score
90
Location
Pittsburgh
Vehicle(s)
Subaru Tribeca
My ESS has been in charging only mode for months. I'm going to take it in.
 

jdegrave

Well-Known Member
First Name
Joe
Joined
May 13, 2019
Threads
7
Messages
129
Reaction score
88
Location
Tampa, FL
Vehicle(s)
Kia Forte, Pathfinder, JLU Rubicon
Occupation
Director Financial Systems Support & Governance
My ESS has been in charging only mode for months. I'm going to take it in.
Same symptoms mine had. Would put money on they changing the main battery.
 

Mwags

Well-Known Member
First Name
Mike
Joined
Jul 22, 2019
Threads
14
Messages
196
Reaction score
84
Location
Abington,Pennsylvania
Vehicle(s)
2018 wrangler unlimited JLU Sport S
Mine stopped working for a couple days then started working again for a couple days now stopped working again!..
 

JL Fan

Well-Known Member
First Name
JL Fan
Joined
Jun 14, 2019
Threads
5
Messages
163
Reaction score
212
Location
Fort Worth
Vehicle(s)
Jeep Wrangler JLU Sport S
Dealer replaced the battery. All under warranty. Iā€™m in the habit of turning ESS off at start up. So not sure how long it wasnā€™t working. But i asked them to take a look when i took it in for last oil change under the Jeep Wave Program. No hassle at all.
Sponsored

 
 



Top