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Old 03-23-2014, 05:15 PM
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2014 jeep GC Gearbox Surge

I own a 2014 Jeep GC Summit with the 3.6L engine. About a month ago, the dealership where I bought the Jeep updated the gearbox software. Since then, the engine surges by a few hundred RPM when shifting from first to second when cold. I took the Jeep back to the dealership, and according to them (as well as the Enhanced Customer Care people at Jeep), there is nothing that Jeep can do about this. The service advisor at the dealership went so far as to way that the 8 speed gearbox is 'not good technology' (his words, not mine), and that problems should be expected. I was curious as to whether other owners had experienced this problem. Prior to the software update, there was no problem.
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Old 03-24-2014, 09:43 AM
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Re: 2014 jeep GC Gearbox Surge

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Originally Posted by dwpringle View Post
The service advisor at the dealership went so far as to way that the 8 speed gearbox is 'not good technology' (his words, not mine), and that problems should be expected
He's full of it. That's what someone who doesn't know his a** from a hole in the ground would say. On the other hand, there have been a number of complaints here about post software update issues. I've had mine almost a year now, and haven't had the update done. My tranny has adapted very nicely to my driving style, and I wouldn't want to change it. Problem is, I don't think you can revert back to the original software once you update. Doing updates for update's sake can be problematic. If it ain't broke, don't fix it. Many were very unhappy with the original programming of the tranny, so the update was developed. I'll pass, mine's fine.
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Old 03-24-2014, 11:19 AM
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Re: 2014 jeep GC Gearbox Surge

@jacko15. Unfortunately you are correct - you cannot revert back to the original software. I guess that the only thing I can hope for is that with time, this issue will disappear as the gearbox learns my driving style (which is pretty relaxed). This really is a pity as I enjoy driving the Jeep. Thanks for the reply.
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Old 03-24-2014, 11:27 AM
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The tranny is nice though I will at least do the update that negates the pulsing or pausing as the car downshifts to the lower gears. The new flash is supposed to take care of that and make the transition more smooth.
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Old 03-24-2014, 11:56 AM
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Re: 2014 jeep GC Gearbox Surge

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Originally Posted by jacko15 View Post
He's full of it. That's what someone who doesn't know his a** from a hole in the ground would say. On the other hand, there have been a number of complaints here about post software update issues. I've had mine almost a year now, and haven't had the update done. My tranny has adapted very nicely to my driving style, and I wouldn't want to change it. Problem is, I don't think you can revert back to the original software once you update. Doing updates for update's sake can be problematic. If it ain't broke, don't fix it. Many were very unhappy with the original programming of the tranny, so the update was developed. I'll pass, mine's fine.
You really should have it done. I didn't think mine was that bad before last update. But wow, what a joy to drive now. My MPG has gone down though. Not because of the update, I just can't resist stepping on it a bit more now. The old firmware might even possible cause damage. I'm not saying it will but it's possible. And might explain why when some people did get the update they still have issues (like clunking). Perhaps old firmware prematurely wears out valves in the valve body. I write code for living and yeah, old firmware can break things To be honest I think it should be a mandatory recall. I think it's dangerous the way it was.

To the OP. I suggest going to another dealer and nicely explain it feels wrong and if they could reapply the full update.

Seems odd they said only gear box. Because the two updates I had involved both the transfer case and transmission. So perhaps yours is only half done.

Also it may change over time. Every ones Jeep may adapt differently. Results might vary too if some dealers do accidently or on purpose clear the adaptive learning.

Most folks on the forum have had a very positive experience with the latest update.
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Old 03-24-2014, 02:20 PM
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Re: 2014 jeep GC Gearbox Surge

@mswlogo. Some good information you gave there. I will definitely take my Jeep to another dealer to get a second opinion. I am also going to check the paperwork to try figure out what software updates were applied. I appreciate all the replies received so far.
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Old 03-24-2014, 03:38 PM
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Any TSBs that are done should have a sticker of some sort applied to the engine compartment to let any techs know what's previously been done. It should show up possibly in the dealers maintenance history but it won't show in the owners section of the uconnect online.
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Old 03-29-2014, 12:46 PM
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Re: 2014 jeep GC Gearbox Surge

I experienced three other issues (jerking at around 40mph, jerky downshift, jerk when vehicle is started) with the transmission, and Jeep is finally going to replace it. I got the feeling that the dealer did not take me seriously, until I took one of their technicians for a drive when the Jeep was cold.
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