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  #1  
Old 02-18-2015, 05:25 AM
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2015 Jeep Grand Cherokee srt problems

Hi members
I have not long taken delivery of a 2015 jeep srt. It's been doing some crazy things but the biggest problem is a vibration felt through the steering wheel and chassis when vehicle is coasting and at around 1500rpm in gears 5-8. Doesn't matter if you doing 60km or 110km. As soon as torque is applied the vibration goes away. Dealer tells me it's the mds working. Is anyone else experiencing this problem?

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  #2  
Old 02-24-2015, 04:29 AM
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Re: 2015 Jeep Grand Cherokee srt problems

Yes it's true. Try selecting sport shifting that way MDS is deactivated. I wish they would eliminate MDS unless you pushed the ECO button. It's a very annoying feature.


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Old 02-25-2015, 08:35 PM
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Re: 2015 Jeep Grand Cherokee srt problems

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Originally Posted by Dluco View Post
Hi members
I have not long taken delivery of a 2015 jeep srt. It's been doing some crazy things but the biggest problem is a vibration felt through the steering wheel and chassis when vehicle is coasting and at around 1500rpm in gears 5-8. Doesn't matter if you doing 60km or 110km. As soon as torque is applied the vibration goes away. Dealer tells me it's the mds working. Is anyone else experiencing this problem?
I too have only 200 miles or so on my '15 and noticed the same vibration at 1400-1600 RPMs in both Auto and Snow mode. It's annoying and I'd expect much more from a $70K vehicle. Looks like I'll need to just drive in sport mode around town to eliminate that annoyance.......
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Old 02-25-2015, 09:05 PM
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Re: 2015 Jeep Grand Cherokee srt problems

2,282 on mine and same problems you are reporting. The MDS should ONLY work with the Eco mode button selected WTF were they thinking. I may buy a tuner just to shut it off its that annoying. The noise cancellation though the audio system is a total joke, it does nothing to reduce the sound. It like driving down the road with only the back windows down, you know that awful pounding you get in your ears. Total fail on jeeps part.


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Old 02-27-2015, 12:23 AM
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Re: 2015 Jeep Grand Cherokee srt problems

FWIW, what they were thinking is trying to attempt to meet increasingly restrictive EPA MPG standards. If the MDS was deactivated entirely until the button was pushed, that would lower the apparent MPG under "normal operation".

Note that in "Auto" select-trak mode, even if you shift to "S" transmission mode, the MDS will still activate with the Eco button OFF. You have to select "Sport" mode on the Select Trak dial in order to completely deactivate the MDS.

Kind of confusing and I agree it's a bit annoying. I actually mind the MDS (since I know what it is and what it's doing) a lot less than the host of other issues the vehicle has.
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Old 03-22-2015, 01:51 PM
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Re: 2015 Jeep Grand Cherokee srt problems

That's the MDS, which is more apparent in ECO mode. Since I have installed a blower, my MDS probably doesn't work, because I don't hear or feel that anymore.
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Old 04-09-2015, 01:38 AM
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Re: 2015 Jeep Grand Cherokee srt problems

I'm not sure what you all are talking about? When I go to work tomorrow I'll keep this in mind and let you know what happens on mine. I just went over 1800 miles on my 2015 JGC SRT.


Are all talking about the drag like the vehicle doesn't seem to coast when you let off the gas?
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Old 04-09-2015, 10:11 AM
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Re: 2015 Jeep Grand Cherokee srt problems

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Originally Posted by RubexCube View Post
I'm not sure what you all are talking about? When I go to work tomorrow I'll keep this in mind and let you know what happens on mine. I just went over 1800 miles on my 2015 JGC SRT.


Are all talking about the drag like the vehicle doesn't seem to coast when you let off the gas?

That's not drag, that's the gearing/engine braking. Performance vehicles don't coast unless you're in neutral. When you let your foot off the pedal the transmission stays in the gear that will have the most available power at the vehicle's current speed.


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Old 07-06-2015, 08:02 PM
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Re: 2015 Jeep Grand Cherokee srt problems

Hello guys, new here.
I noticed that vibration and really had not in my mind it was related to the mds. If i drive the srt in Sport setting, and shifter in D, is the mds completely disabled?
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Old 07-06-2015, 08:28 PM
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Re: 2015 Jeep Grand Cherokee srt problems

Yes it's correct I had have the same problem. Try putting gearshift into sports mode (flag will light up on dashboard) and problem disappears. It seems jeep MDS design is not very sophisticated
Remember MDS cuts off cylinders by not actuating valves. Essentially turn you ending into a pump
My Hyundai van has a better MDS than jeep!


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Old 08-02-2015, 07:15 AM
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Re: 2015 Jeep Grand Cherokee srt problems

Sorry for the basic question but what does MDS stand for? Thx!


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Old 08-02-2015, 07:41 PM
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Re: 2015 Jeep Grand Cherokee srt problems

The effort required to find this was titanic.

Jeep - Multi-Displacement System(MDS)
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