Auto Stop Feature

[Dynomite1371]

When the engine stops, what happens to the climate system? Because in cold weather if you leave your hvac on and your engine off, your windows will fog up in no time.

I noticed this morning with heat blaring, I got to first traffic light, and auto shut off kicked in and I noticed that the air in the vents was no longer hot. Freaked me out for a second...... I disabled it, while still at light, heat back on. I think it's annoying and if used in the right conditions, it's probably helpful, but otherwise it's not hard to touch a button to disable.

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[Dynomite1371]

I test drove a Rubi last night and the ESS was almost transparent. The saleswoman had to point out that the engine kicked off at the first stop light. Engine starts as soon as you release the brake and I fired the motor so fast I'd be hard pressed to see any problems with it. In fact, I doubt I could race from the brake to the gas and beat the engine restart.

I was concerned with it too, thinking I'd program it out. Now, not so sure. It's really hard to notice.

Just hit the button and turn it off

 

[Documan.Terry]

Is this feature for both auto and manual transmissions?

 

[rafaelsmith]

While auto stop is not something I would ask for, it does not really bother me. If its true what people fear would happen then you can disable it...if you forget to disable you will be reminded quickly since if you are correct it will be obvious

 

[Merica!]

Is this feature for both auto and manual transmissions?

Yes

 

[Documan.Terry]

Thanks for the info

 

[SmartStopStart.com]

I have kept up with it minimally since buying a GC. The smartstopstart maker, because of Jeep's new OBD2 firewall, has located a plug in location under the seat. Now this is for the GC and I don't know if he is trying or knows it's compatible with the JL.

It wlll not be under the seat on the JL, but I am in the process of deciding on the best location for the easiest possible installation. I have reviewed enough data on the JL already to know we need a new design.

 

[FrenchSSGTMike]

It wlll not be under the seat on the JL, but I am in the process of deciding on the best location for the easiest possible installation. I have reviewed enough data on the JL already to know we need a new design.

Stupid question but people have been mentioning a specific ESS battery in the engine bay... can’t we just unplug it ?! Lol

 

[SmartStopStart.com]

Stupid question but people have been mentioning a specific ESS battery in the engine bay... can’t we just unplug it ?! Lol

Sure, but you will be driving around with system faults and warnings.

Also, ESS makes sense to save some gas for some people who are frequently in heavy stop and go traffic when the outside temperature is not too hot or cold. With the SmartStopStart you can always press the dash button to turn the system back on instantly when you want it.

 

[OldGuyNewJeep]

How would ESS do in a traffic jam, otherwise known as my every day commute? I’ve read that they’ve enguneered for the extra wear and tear, but it seems to me that starting and stopping hundreds of times a week would be bad.

 

[kurt13]

Car manufacturers are way ahead of you. We've had start/stop over here for years, so they've had plenty of experience with this.

Here's a fairly simplistic explanation: https://www.autocar.co.uk/car-news/new-cars/stop-start-long-term-impact-your-car-s-engine

How would ESS do in a traffic jam, otherwise known as my every day commute? I’ve read that they’ve enguneered for the extra wear and tear, but it seems to me that starting and stopping hundreds of times a week would be bad.

I think the article @AlexK answers any concerns you may have. 50,000 vs 500,000 lifetime starts.

 

[OldGuyNewJeep]

I think the article @AlexK answers any concerns you may have. 50,000 vs 500,000 lifetime starts.

“But the current technology is still relatively new and only time will tell whether every car manufacturer has got it right.”

The article basically says it’s not going to wear out the engine faster because they are using more slippery oil between the crankshaft and the “plain” bearing.

I dunno. Starting/stopping over and over during a traffic jam (especially when it’s very hot or very cold outside) seems bad. Guessing I’ll be turning it off in heavy traffic, even though the claim is that is the scenario best suited to save fuel. :-/

 

[The Great Grape Ape]

To me it’s still a responsiveness thing. I will reserve final judgement until I test it in person, but having driven a few FCA implementations with ESS, and several other implementations, I find only the Hybrids are truly seamless when it come to things like yielding at an on-ramp and then trying to accelerate to make the next gap. Even in my gf’s dad’s Merc it lags, so I still have my doubts until I test the JL’s application.
It’s a major reason I’m waiting for the BSG equipped Pentastar. Yes, I want the traffic fuel savings, but I don’t like the disconnected feeling that makes me concerned about the safety of delayed throttle response.

I’m not worries anout engine wear, but people who plan on owning their JL for a decade might, and yes disabling the ESS will extend the life all thing being equal.

 

[DanW]

What are everyone's thought of the Auto Stop feature on the JL (Pages 330-332 of Owner's Manual).

I tried it tonight with the manual transmission. It worked great. I was shocked. I thought I'd hate it. It didn't bother me one bit. As soon as you depress the clutch, it starts right up. You barely notice it. The shut down is even harder to notice. No shake, rattle, or roll at start up, either. There may actually be times I use this. (Drive through windows).

 

[DanW]

To me it’s still a responsiveness thing. I will reserve final judgement until I test it in person, but having driven a few FCA implementations with ESS, and several other implementations, I find only the Hybrids are truly seamless when it come to things like yielding at an on-ramp and then trying to accelerate to make the next gap. Even in my gf’s dad’s Merc it lags, so I still have my doubts until I test the JL’s application.
It’s a major reason I’m waiting for the BSG equipped Pentastar. Yes, I want the traffic fuel savings, but I don’t like the disconnected feeling that makes me concerned about the safety of delayed throttle response.

I’m not worries anout engine wear, but people who plan on owning their JL for a decade might, and yes disabling the ESS will extend the life all thing being equal.

On the manual, there is no delay in throttle response, at all. The engine is started and running by the time you begin to let the clutch out. I wouldn't call it seemless, but it's damned close. I was shocked at how well it worked.

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