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2018 WK2 Auto Start/Stop

Old 04-08-2019, 05:59 PM
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accarguy's Avatar
Join Date: Apr 2019
Posts: 1
Model: Cherokee (XJ)
Default 2018 WK2 Auto Start/Stop

Hello all

Hoping you can help me. My brother just bought a 2018 Grand Cherokee, he loves it but he hates the auto start stop feature. I have read about the tricks of turning the steering wheel, disconnecting the battery sensor (this turns the fault light on the dash), and keeping your foot lightly on the brake. My question is that what else can be done. I know on the ford end there is a guy that makes a wiring harness that plugs into the start stop button and it keep the switch always in the off position unless you want it on. Is there something like this available?

Thanks for your help.
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Old 04-09-2019, 02:30 AM
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94zj318's Avatar
Join Date: Feb 2012
Location: Baltimore
Posts: 513
Year: 2002
Model: Grand Cherokee
Engine: 4.0L (AMC) Straight Six

Have him email (

They may be able to sell him an OBD-II programmer that disables it permanently.

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Old 04-11-2019, 09:29 PM
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Join Date: Nov 2010
Location: Manlius, east of Syracuse, NY
Posts: 11,045
Year: 2000
Model: Grand Cherokee (WJ)
Engine: 4.0L

I've heard about a little cartridge that plugs into you OBD2 port that does the same thing.That way you don't void the warranty.
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