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I know how to turn off the auto start/stop I want to know how to DISABLE the system. My Compass draws over 3 amps when turned off and just sitting mostly through the F02 70 Amp fuse. It is a battery killer.
Do you check the current draw right after you shut the engine off? I know some things stay powered up to 2 minutes after engine shutoff. I have heard relays "click" sometime after shutoff.
 

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Wow...3 amps is going to take down the battery real quick. Unless this goes away after a few minutes something else is wrong. Perhaps the ESS is just responding to another issue. If you look at the vehicle in the dark are any lights still on after sitting awhile?
 

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I know how to turn off the auto start/stop I want to know how to DISABLE the system. My Compass draws over 3 amps when turned off and just sitting mostly through the F02 70 Amp fuse. It is a battery killer.
Are you sure it's your stop/start system? It shouldn't even be activated if your Compass isn't running.
 

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Are you sure it's your stop/start system? It shouldn't even be activated if your Compass isn't running.
It is the entire subsystem that includes remote start and start stop. I was reading on another forum that it was most likely the AUX battery. So I disconnected the Aux battery and sure enough 0.9 volts. Did a resistance test ant a direct short across the Aux battery. And apparently the car will not start without one. Is there an aftermarket battery available since from what I have read the dealer only carries the same low quality OEM battery.
 

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Are you sure it's your stop/start system? It shouldn't even be activated if your Compass isn't running.
It is in the auxiliary battery system. The battery was fried most likely to a failure of a relay somewhere that controls the charging of the AUX battery.
 

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The black box above the stop start battery (marked ++1830) is a power relay. Driven by the electrical connection plug to the left with the green wire. Not sure if this is part of the charging circuit however you can at least check that this plug is inserted correctly.

14222
 

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The best way to deal with the start/stop system is to disable it. There's a pin under the hood you remove and it disables the system, 30k+ miles later, the best decision ever.
 

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The best way to deal with the start/stop system is to disable it. There's a pin under the hood you remove and it disables the system, 30k+ miles later, the best decision ever.
Same here and I don't even notice the amber light in the dash anymore!
 

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Hi Key Reign,

We are sorry to hear that you are experiencing concerns with your battery and ESS. Please send us your VIN, mileage, and dealer so that we can create a case on your behalf to offer further assistance while in service.

Darlene
Jeep Social Care Specialist
Hi Jeep Drivers,
I am new to this forum but have similar experiences to all of these entries.
Before the pandemic started, I rarely drove my 2017 Compass during the week. I commuted to work on public transportation. Now, I have been driving three or more times a week.
Only a 30+ minute drive to work on back roads to the main city traffic. Throughout the whole summer, the ESS did not work until recently(three weeks) it started working properly but only for 5 stops. I continue to drive more frequently but no ESS activity.
I have taken it to the dealership where I bought my Jeep now twice for the ESS issue. The first time was last year, the ESS was diagnosed with a sensor issue. Afterwards, it worked for a couple weeks and then no more. Again, I did not drive frequently before the pandemic.
Now, it is back in the dealership for "severely discharged" battery. I dropped it off in the morning at 8:30. They will keep it until the next day.
I am not understanding why it would take this much time to charge the battery?
Is there still an underlying issue?
Or, do I just need to drive everyday?
 

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Unfortunately there are electronics in cars these days that stay on when the car is turned off. This can discharge the batteries in a relatively short time. If a car sits too long on a dealers lot or at home without being charged (or you leave something on, etc.) and the battery drops below 10V for a long time, the batteries can be permanently damaged to the point where they will not hold a charge. The voltage during re-charging looks to be OK but the battery will not support any significant load. If this is the case then it is time to just bite the bullet and get new batteries.
 
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New to a vehicle with the "Start/Stop" Engine System.

I noticed that the Dash was showing the "A" in "amber" with an "exclamation" mark (!) beside it. Also, when starting the vehicle it gives a message "Start/Stop Unavailable Service Start/Stop System"

I just picked this vehicle up as a dealer demo, and am wondering if the system was "overridden"? (It was the dealerships wife that was driving this)

I called the Service Dept and they asked if the battery had recently been removed. (I have no idea) They suggested trying it for a few days to see if the system "resets" itself.

Worst case scenario ................... I take it in for service.

Any suggestions?????
Mine did the same, & then it wouldn’t let me press down the break to do push button start.
I had to have it towed in. I was told the start stop has its own battery. When this goes bad, the other battery constantly works to try and recharge it causing that battery to fail also! Of course this doesn’t fall under the $2,000 extra 70,000 mile warranty I purchased. With towing it cost me $602! I would think this is a malfunction of this system and would be covered.My Jeep is a 2018 with 60,000 miles. You would think the batteries would be good, longer then that!
 

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Mine did the same, & then it wouldn’t let me press down the break to do push button start.
I had to have it towed in. I was told the start stop has its own battery. When this goes bad, the other battery constantly works to try and recharge it causing that battery to fail also! Of course this doesn’t fall under the $2,000 extra 70,000 mile warranty I purchased. With towing it cost me $602! I would think this is a malfunction of this system and would be covered.My Jeep is a 2018 with 60,000 miles. You would think the batteries would be good, longer then that!
I agree. Batteries should be good for 3 years minimum. I usually get 5+ years and I live in an area with pretty severe high and low temps -- drops as low as -35F in the winter, and we can hit 90+ in the summer. Isn't FCA in Michigan? Doesn't it get just as hot and cold there? If they are going to force this system on us, the least they can do is give us a back-up of some sort.
 

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We bought ours of our own accord. Who was it that forced you to buy one? I've never heard of someone being forced to buy a car against their will.
Not the car, the start/stop system.
 

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So, you bought the car, then someone forced you to add the ESS system to it against your will? I think not.
 

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So, you bought the car, then someone forced you to add the ESS system to it against your will? I think not.
You think not? You said it, not me. ;) Added to it? Do you think I would pay a dime to have someone install ESS? I wouldn't pay someone to install a catalytic converter or touch-screen controls, either. I presume you haven't tried to order a new Compass without these things. I haven't either because I know the answer.

Fortunately the Compass has a button to cancel the ESS, a thoughtful inclusion by the engineers at FCA. However, I expect the government will soon require manufacturers to delete this helpful switch. Other ways to disable the ESS will probably be made illegal like removing the catcon is today.
 

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Hi 10-64,
We recognize that you are just reaching out to other forum members at this time for advice. However, if you need any additional assistance when you visit the dealer, please feel free to send us a PM with additional information.
Julie
Jeep Social Care Specialist
Im having the same issue on my 2019 jeep compass 2.4l changed out the battery and now its telling me that my start/stop is unavailable and charging but never charges. What is going on?
 
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