Question about 2000 Jeep Grand Cherokee

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Alarm system has stopped working on my x reg 4.0 cherokee jeep.Both key fobs have new batterys, was ok, up and till brakes where replaced recently.Jeeps battery showing charged.Alarm still wont work having to manualy lock doors. Local garage has no idea why it has failed to work what has gone wrong.

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Please explain what year a X registration vehicle is ,as i have no idea ,last one i remember was a T 1978 .Now i think that this alarm fob might need re-programming into the vehicle where you swing on the aerial whilst holding the key fob in teeth and pressing the brake and the FM button on the radio at the same time ,When my all data books arrive next week i might be able to help but yes i have had this problem before and yes we do have these vehicles here in spain but mainly diesels ,now last time it happened when a customer changed the batterys i held the button down on the fob then turned the ignition on and it all sort of bleeped and started working ,but perhaps an american person with more experiance than myself might know how to do it correctly ,Now if you ask me about a humber hawk or a morris minor??

Posted on Jul 29, 2010

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My 1997 jeep grand Cherokee alarm system keep arming itself about a minute after car is turned off even if car is unlocked with windows down can someone help


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what dont work?
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or car wont start? or dies in 3 seconds.
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thee are 3 or 4 things, all called antithieft.

the FOB battery only effects door locks and not RF ID side.

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The jeep car i just bought ,the key fob that open the car,or puts the alarm off does not work,but to put the alarm on that works at a close range.how can this be fixed


Check the key fob battery. Second take the key fob to your local parts store chain and have them check to see if it is transmitting a signal. Hope this helps.

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When my 1995 Jeep Grand Cherokee will unlock the doors but not deactivate the security system it is always time to change the battery in the key fob. Don't order a new fob, just pry the fob open (carefully) and replace the battery. I buy mine from Batteries + and they cost like $.80 a piece + tax.

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Replace the battery in th key fob to allow you to deactivate the alarm system. Use a small thin edged screw driver to pop open the cover on the fob to replace the battery.

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I have a 1999 jeep grand cherokee. the alarm goes off whenever i open the door if the vehicle has been locked the alarm stops when i start the vehicle i only have a key, no remote any ideas on how to fix...


If ithe alarm is factory when they will have to reset the alarm module with a scanner. If the alarm if aftermarket go to the control module and see if it has a reset button. FOBs (remote) can reset alarm. You Jeep is always set for break-in mode. The FOB sets this when ever the FOB is used to lock the doors. May be bad alarm module - Sorry - Good luck

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Remote goes off continueouslly and unless battery cable remove won't stop. Also, vechicle won't start.


Some Jeep models have the ability to reset the alarm by following this procedure. Connect the battery cables and allow the antitheft alarm to trigger (usually horn honking and lights flashing). Use your ignition key to lock, unlock, lock and unlock the passenger front door. This should reset the system to be used normally. If your key fob is the problem, remove batteries to stop alarm trigger and have dealership test and/or replace fob. Hope this helps.

Aug 14, 2009 | 1997 Jeep Grand Cherokee

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