If your Jeep Wrangler's security system has been activated, there are a few ways that you can reset it. One way is to disconnect the battery for about 30 seconds and then reconnect it. This should reset the system and allow you to start your Jeep. Another way is to use the key fob to unlock the door manually. Once you have unlocked the door, the security system should be reset and you should be able to start your Jeep.