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  #13  
Old 09-30-2014, 02:30 PM
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Re: 2015 Cherokee

Tried to live with the stop/start system for the first 400+ miles and decided to disable it after starting, at least for now. Here are my two reasons:
  1. At a stoplight I feel a slight rollback of the car just as the trans engages, wherever there's a very mild upward incline (less that the 7% or so where the hill-hold activates). I can't imagine that's a good thing for the trans.
  2. When I drive into driveway or parking spot, I hit the brakes [engine Stops] then shift to Park [engine Restarts] and then tap the stop button on dash. I need to figure out the best way to avoid this extra restart. I tried hitting stop button with car in gear and foot on brake that didn't shut engine... I tried a few times to remember to turn the Stop/Start system off as I approach the driveway... that worked when I remember.
So... for now, I'll train myself to hit the button no dash to disable the StopStart system every time I start the car. I can always engage it when in stop-and-go traffic when it is most useful. IMHO after only a few hundred miles, there should be a way to set the StopStart default either way.

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  #14  
Old 10-02-2014, 09:50 AM
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Re: 2015 Cherokee

Quote:
Originally Posted by rpasetto View Post
Tried to live with the stop/start system for the first 400+ miles and decided to disable it after starting, at least for now. Here are my two reasons:
  1. At a stoplight I feel a slight rollback of the car just as the trans engages, wherever there's a very mild upward incline (less that the 7% or so where the hill-hold activates). I can't imagine that's a good thing for the trans.
These are pretty good comments. Although I haven't received mine yet I will probably disable it for at least the first tank or two - if not forever. I can't see it being good for the transmission.
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  #15  
Old 10-02-2014, 10:09 AM
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2015 Cherokee

Thanks for sharing your feedback about the Stop & Start.

I know one thing for sure: I will keep it disengaged most of the time. The sheer idea of having the engine shut down on you is simply too much of an emotional discomfort, especially if you have driven some clunkers in the past like I have


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  #16  
Old 10-02-2014, 10:23 AM
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Re: 2015 Cherokee

There could be a simple way to change the default so StopStart stays off when you start the engine. Maybe someone has discovered it.
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  #17  
Old 10-02-2014, 10:42 AM
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Quote:
Originally Posted by rpasetto View Post
There could be a simple way to change the default so StopStart stays off when you start the engine. Maybe someone has discovered it.
Let's all hope
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Old 10-02-2014, 12:38 PM
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Re: 2015 Cherokee

I agree I wish had a way to disable like other vehicles do leave it in the last state you select. I never would want this "feature" on a "off-road" vehicle. The parking/shutdown double tap also is really is a pain. I also worry about long term reliability, wear and tear on the engine over 7-10 years.
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Old 10-02-2014, 12:40 PM
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Re: 2015 Cherokee

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Originally Posted by RescueRanger242 View Post
I agree I wish had a way to disable like other vehicles do leave it in the last state you select. I never would want this "feature" on a "off-road" vehicle. The parking/shutdown double tap also is really is a pain. I also worry about long term reliability, wear and tear on the engine over 7-10 years.

I'm with you on that.


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  #20  
Old 10-04-2014, 01:01 PM
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Re: 2015 Cherokee

Quote:
Originally Posted by rpasetto View Post
Tried to live with the stop/start system for the first 400+ miles and decided to disable it after starting, at least for now. Here are my two reasons:
  1. When I drive into driveway or parking spot, I hit the brakes [engine Stops] then shift to Park [engine Restarts] and then tap the stop button on dash. I need to figure out the best way to avoid this extra restart. I tried hitting stop button with car in gear and foot on brake that didn't shut engine... I tried a few times to remember to turn the Stop/Start system off as I approach the driveway... that worked when I remember.
There is usually a slight delay, when you stop, before the engine shuts off. It is during that delay that I shift into park avoiding the stop/start button pushing routine. I'm now at 600 miles with mine and I do like the stop/start. Noticed that a slight relaxation of pressure on the brake and the engine will start and stay running until you reach a predetermined speed before it can be activated again.

Just my $.02
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  #21  
Old 10-04-2014, 07:03 PM
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Re: 2015 Cherokee

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Originally Posted by Traveler0980 View Post
There is usually a slight delay, when you stop, before the engine shuts off. It is during that delay that I shift into park avoiding the stop/start button pushing routine. I'm now at 600 miles with mine and I do like the stop/start. Noticed that a slight relaxation of pressure on the brake and the engine will start and stay running until you reach a predetermined speed before it can be activated again.

Just my $.02
Agreed that Stop/Start is useful some times... when on streets with looong traffic lights it's great. In stop-and-go with short duration stops... not so much. I doubt that the restart after a second will improve efficiency, certainly doesn't help the environment and surely makes a greater contribution to wear. This is also the case when an extra restart is added to a short trip.

There's a threshhold somewhere between a trip with numerous long (60+ sec.) stop times and one with a bunch of short (2 sec) ones. I agree the former will effect savings... of fuel, atmospheric pollution and so on while the latter makes a greater contribution. Likewise the extra start/stop at the end of a long trip where stop/start has already resulted in significant savings is not too much a dent in those savings. The extra stop/start after each of numerous trips where the feature was of no use is just a negative.

I'd just like to have an easy method for avoiding the negatives while choosing to take advantage of the positives when I know they will be of benefit.
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