The Jeep Grand Cherokee was redesigned for the 1999 model year; the 2000 models have minimal changes. This model is also known as Jeep WJ.

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That's not working,still won't crank over.

What next?.... That's not working,still won't crank over... Please I've tried new battery...it's a system problem, I think it's a keys,phobs, problem.....? HELP !!!

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Christine - first you have the wrong name to work well with autos. Maybe @jimfixer knows more about this.

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Christine are you sure its a security issue have you had the codes read . If it is a security issue I have had success in two different ways first being to disconnect the battery for a day with the headlights one to remove any residual power from the computer . this reset the computer and the security system will also reset and make sure you use a factory OEM key . If this brings no joy a new battery can also help. if the battery is week it often causes the system to activate hope this helps

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Christine Blair will be eternally grateful.
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