Battery/Stop-Start Issue

xpsruler

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I've gotten this screen a couple times..
20180526_173058.jpg
anyone else have this issue? I used a multimeter to check the battery with the vehicle off and am showing 12.73 volts. Was hoping someone had some info before I take it to the dealer. Thanks!
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Hootbro

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It is not a fault of the start/stop, just stating a condition on why it is not ready and in this case, one of the parameter is not ready for it to be enabled and it is protecting the battery(s).

The owners manual really sucks in this regard. You can take it in, but you will be wasting the dealers time and yours.
 

Driggs

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I have had this same problem for the last two days. But my screen just says start/stop not ready” nothing else. And the start stop function doesn’t work when I drive it. Doesn’t matter if the start stop button is on or off
 

WranglerMan

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There are like a dozen things that cause the ESS not to work, unless all conditions are met the ESS won’t engage
 
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xpsruler

xpsruler

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Got a message today saying to service stop/start as well as stability control now with error lights.
 

Capricorn

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I bought my JL Unlimited on Friday evening - 2 nights ago.
As I was driving to take it home and hit 4 or 5 stop lights, the orange A! sign came up with a chime. I didn;t give enough notice to it but on Saturday when I started it, it was gone. Then again it came up and keeps coming up - and the reason was battery in protection mode. I am going to take it to the dealer on Tuesday.
I am wondering too if it is a battery issue - that the Aux battery may not be getting charged enough? The orange A! light comes up when the light turns green and I take the foot off the brake. And it remains on till I restart it again.
 

Capricorn

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I have had this same problem for the last two days. But my screen just says start/stop not ready” nothing else. And the start stop function doesn’t work when I drive it. Doesn’t matter if the start stop button is on or off
Are you driving with the MaxAc on? If so, ESS will never turn on.
 

JeepCares

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I bought my JL Unlimited on Friday evening - 2 nights ago.
As I was driving to take it home and hit 4 or 5 stop lights, the orange A! sign came up with a chime. I didn;t give enough notice to it but on Saturday when I started it, it was gone. Then again it came up and keeps coming up - and the reason was battery in protection mode. I am going to take it to the dealer on Tuesday.
I am wondering too if it is a battery issue - that the Aux battery may not be getting charged enough? The orange A! light comes up when the light turns green and I take the foot off the brake. And it remains on till I restart it again.
Hi Capricorn,

Congratulations on the purchase of your new JL! We are sorry to hear that you have a concern with a warning light. How did your appointment go at the dealer on Tuesday? Please feel free to send us a PM if additional assistance is needed.

Darlene
Jeep Social Care Specialist
 

Capricorn

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Hi Capricorn,

Congratulations on the purchase of your new JL! We are sorry to hear that you have a concern with a warning light. How did your appointment go at the dealer on Tuesday? Please feel free to send us a PM if additional assistance is needed.

Darlene
Jeep Social Care Specialist
Hi Darlene,
I am at the dealership now as we speak. They are putting the battery to the test so I will know in a few hours. I will PM if additional assistance is needed from you. Thanks!
 

JeepCares

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I've gotten this screen a couple times..
20180526_173058.jpg
anyone else have this issue? I used a multimeter to check the battery with the vehicle off and am showing 12.73 volts. Was hoping someone had some info before I take it to the dealer. Thanks!
Got a message today saying to service stop/start as well as stability control now with error lights.
Hi xpsruler,
We understand that you are looking for feedback from other forum members at this time before you visit the dealer. However, when you do have an appointment set up, we would be more than happy to offer an additional layer of assistance. Feel free to send us a private message if this is something that interest you.
Julie
Jeep Social Care Specialist
 

Capricorn

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My battery is good. The problem is a bad relay. Part is being ordered and will be received in a few days.
 

Capricorn

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Got a message today saying to service stop/start as well as stability control now with error lights.
I had the same problem - a micro relay needs to be replaced. It is a 5 minute job to fix it but the part has to be ordered and has an ETA of about 7 days. Costs about $10.65. I am thinking it is a communication error between the ESS and the computer.

It is a minor problem and localized only to ESS - the only inconvenience is to find the right dealer and spend half a day to get the problem diagnosed. Drive with ESS shut off until then to be on the safe side.

But I don't have the stability control error.
 
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xpsruler

xpsruler

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I went through every fuse and relay under the hood and found about 20 that werent fully seated. I made sure that all are seated and will see how the Jeep does. The past couple days have been good and my battery voltage has gone up as well while idling. I'm hoping the issue is resolved but will take it in if it returns.
 

Desert Dog

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My JLU Sahara is in the shop after 2 days of ownership for similar start/stop issue. Mine would shudder real bad at idle and would even shudder at freeway speed. Disabling with the the dash button made no difference. Dealer says it’s a problem with aux battery but I have my doubts. Hope to have an update today.
 
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Desert Dog

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Forgot to mention that while shuddering at idle, I got the message “ start stop unavailable. Service start stop system”
882DC2A1-C156-4A4D-8D7A-6652FC5F1460.jpeg
 
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