Jeep wont start because of security system how can i disarmmy 1997 i used key to lock doors and when i open with key it turns on when i open door fob inoperative

that's the antitheft open drivers door window , with door closed put key in door and turn open to lock 3 times in a row and remove key

With the door open engage the locks, then shut the locked door. After door is shut use the KEY note: (NOT THE REMOTE) after you've unlocked the door place key in ign and start the Jeep.

Use your key to turn the rear hatch key cylinder before going into your jeep. That will turn off the factory security system.

The VTSS (Vehicle Theft Security System) might be armed. To dissarm insert and rotate the key on the driver door lock or the passenger door lock or the liftgate door lock. You can also disarm it by pushing the button on the keyless control unit.

Might be the central locking system. Try using the key in the door (rather than the remote control) to deactivate the security system. Also make sure that the center console is completely closed (this is part of the central locking system).

Here is excerpt from the 1998 Jeep Grand Cherokee Service Manual ... i know you posted under 1997 JGC but this information may be helpful ... by "reset alarm" i believe you meant disarming the alarm?

“Arming
Passive arming of the Vehicle Theft Security System (VTSS) occurs when the vehicle is exited with the key removed from the ignition switch, the headlamps are turned off, and the doors are locked using power lock switch. The power lock switch will not function if the key is in the ignition switch or the headlamps are on with the driver’s door open. The VTSS will not arm if either front door or the liftgate are locked using the key in the lock cylinder.
Active arming of the VTSS occurs when the Remote Keyless Entry (RKE) transmitter is used to lock the vehicle, even if the doors and/or the liftgate are open when the RKE transmitter Lock button is depressed. However, the VTSS arming will not be complete until all the doors and the liftgate are closed.
Following successful passive or active VTSS arming, the VTSS set lamp on the top of the instrument panel will flash rapidly for about 15 seconds after the illuminated entry system times out. This indicates that the VTSS arming is in progress. If the light stays on steadily during the arming, it indicates that the hood switch is closed (the hood is open). The VTSS will still arm if the hood is open, but the engine compartment will not be protected. Once the 15 second arming function is complete, the set lamp will flash at a slower rate to indicate that the VTSS is armed. Disarming Passive disarming of the Vehicle Theft Security Sytem (VTSS) occurs when the vehicle is unlocked using the key to unlock either front door or the liftgate. Active disarming of the VTSS occurs when the vehicle is unlocked by depressing the Unlock button of the Remote Keyless Entry (RKE) transmitter. Once the alarm has been activated (horn sounding, exterior lights flashing, and the the engine no-run feature), either disarming method will also deactivate the alarm. Depressing the Panic button on the RKE transmitter will also disarm the VTSS, but the horm will sound and teh exterior lamps will flash for about three minutes as a part of the Panic feature function. ..." And as an additional note, if you have the courtesy interior lights set at 30 seconds like i do, you have to wait until lights go out (with alarm still sounding) before you can disarm the alarm via passive disarm method... what a pain when you don't have the actual RKE handy... Good Luck!

93 jeep grand cherokee limited only have ignition key and changed battery and now security lights and headlights wont quit flashing help!

when you battery goes dead, the security system locks the car. When you charge the bathery, use the key to lock the door and hold until the alarm activates. open your door and you can now start your [email protected]

you can get a regular key from the dealer to just open your doors and not start the vehicle. It will cost about $5, but you will need proof of ownership and have a picture id.

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.