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Re: alarm not working on 1999 jeep cherokee
If this is an after market alarm, the alarm is in the off position.
Look under the dash on the drivers side for a push button or switch.
Turn the key to the run position without starting the car, either push
the button or move the switch in the opposite direction and turn the
This should turn the alarm back on.
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you can try resetting it by disconnecting battery ,wait 30 sec then reconnect two things make sure you have drivers side window all the way down and the keys in your hand it may set off auto locks (I have seen it happen)once you reconnect battery alarm will go off and lights will flash at this point put key in drivers side door and turn it to open close 3 times with out opening door that should do it.
Sounds like you need to perform a relearn on the anti theft system, it's not recognizing the key if this happens with the key inserted. Might want to look online for a reset procedure for Jeep. GM has you keeping the key in the ignition in the on position for 10 minutes.
Try turning the key..unlock-lock-unlock in the rear tailgate lock. That should turn off the factory security system. If it's an aftermarket alarm system, you will need an alarm installer's help in determining what type and model alarm it is, before you can figure out how to shut it off.
I found a solution on another site showing if i turn the ignition on and hold the reset button on behind the alarm light untill it turns to solid blue light then turn off the ignition , it will disable the alarm.
i have a 95 jeep grand cherokee lerado from time to time my alarm goes off i dont have a remote 4 my alarm but i found out that if you put the key in the driver door and unlock it. it will reset the alarm!!!!!
The ignition security on/off is located at the trunk lock. unlock and lock rear gate and the alarm will turn off. My jeep sat in my drive for a month before a jeep tech told me this. It still triggers the security sometimes when I unlock the passenger door with the key and I go straight to the rear gate lock and it shuts off instantly.