Question about 2002 Jeep Grand Cherokee
Hi, my jeep grand cherokee's ignition key won't turn at all
The key problem could be a worn out key that is not disengaging the tumblers in the ignition switch or tumblers that are sticking(squirt a little wd40 in the ignition cylinder and move the key in and out a couple of times) inside the switch. Make sure the shifter is fully in park.
Posted on Mar 04, 2009
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Posted on Jan 02, 2017
This is a tumbler problem. If you want to fix it yourself, you need to disassemble the the column untill you get to the lock cylinder and figure out how to remove it and remove the tumblers. This will allow many different keys to start the car however. Your other option is to replace the lock cylinder with a new one and new keys. That is up to you, but you should do something before the keys quit working all together.
Posted on Oct 13, 2008
if you have an original working fob and your owner's manual,it will explain procedure,otherwise will have to go to dealer to be programmed
Posted on May 17, 2009
It is likely one of your battery cables loose. Same thing just happened to me today. What you need to do is first lock the doors, and close them. Then you need to disconnect, and reconnect the battery cable, then if the security lights still blink you must use your key to unlock the door, then it should stop blinking, and start just fine.
Posted on Jun 02, 2009
Tips for a great answer:
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Unlock all of the Jeep Grand Cherokee's doors and open the driver's side door. Keeping the door open, lock it using the manual lock on the door itself.
Put the manual key into the ignition and switch it to the "On" or "Run" position, whichever applicable, without starting the engine.
Point the remote at the receiver (located by the little bulb on the car ceiling) and hold down the "Lock" button for up to 5 seconds.
When the driver's side door unlocks, you know the remote has been programmed correctly. If you are only programming one remote, jump to the next step. If not, manually re-lock the driver's side door and repeat steps 5 and 6 using each remote you would like to program and then continue.
Turn the key to the "Off" position and turn the ignition on immediately. This must be done within 20 seconds of programming the last remote. You're finished!
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