Locked my keys in the 2000 Jeep Grand Cherokee

https://www.fixya.com/cars/r26142776-want_bypass_vehicle_security_system

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First thing you need to try is wiggling the steering wheel back and worth while turning the key to try and unlock the steering column. If the key is worn out it may not turn well in the ignition. Another thing is to lubricate the ignition cylinder. If nothing works, it maybe the ignition cylinder tumbler is worn out and needs to be replaced.

the shifter linkage needs ajustment for it to go in to park if this does not fix it it will need a new tumbler set

IF this is the same problem as in the Dodge Caravan's, then put the key in the ignition and tap it with a hammer, big wrench, etc. Not too hard! My caravan does the same thing and I can jam the key in the lock and get it to turn fine. Eventually you will have to replace the igintion lock cylinder.

wriggle the steering wheel left to right while turning the key!
Cheers Rob

you need to check wiring between lf door and body..peel back rubber boot and pull on wires..you will find 1 or more broken wires..can be repaired

there is a sensor that tells the anti theft module you used the key to unlock the door, it is attached to the door latch or lock cylinder, u must have disconnected the wire to the sensor, so it thinks u are breaking into the car.

did you try calling a dealer sometimes they are the only ones that can reprogrm these things

try gently rocking wheel back an forth while wiggling the key