Inside every key there is a small chip and every one of these chips has a different code that matches your car's security system, that only way to change the codes is to take it to the dealer and have them re-program the new key. It's a hassle and a little on the expensive side but that's one more evil way for them to get money out of us!
I may not be right but try holding down your lock button until the doors lock?
To reprogram the lock codes on a Schlage lock, first, ensure the lock is in the programming mode by entering the existing user code followed by the “#” key. Then press the “6” key to access the programming menu, followed by the user number you want to change (e.g., 1 for the first user). Enter the new code and confirm by pressing “#” again. Remember to check the user manual for specific instructions, as steps may vary by model.
You may reset the code by pressing either the unlock or lock buttons on the remote control. Within 1 minute of doing this, insert the key into the driver door and turn the key to the lock or unlock position.
Take to dealer as they have to reprogram with the computer. I have to do the same thing on mine.
When you turn the key to the on position, the theft light should begin to flash. You must leave the key in the on position for approxamately 10 min. This will reprogram the key to the car. When this problem occurs, it is because the lock cylinder (ignition switch) needs to be replaced.
change batteries and reprogram lock
you will need to go to a main dealer to get it reprogram it
No
To reprogram a Lexus RX300 key fob, first, sit in the vehicle and close all doors. Insert the key into the ignition and turn it to the "ON" position without starting the engine, then turn it back to "OFF." Repeat this process twice, then turn the ignition back to "ON" a final time. Press and hold the "lock" button on the key fob for a few seconds, and this should reprogram the fob. If this doesn't work, consult the owner's manual or a professional locksmith for assistance.
To reprogram the remote key for a 1996 Mercedes S320, first, insert the key into the ignition and turn it to the "On" position without starting the engine. Within 5 seconds, press and hold the "Lock" button on the remote for approximately 5 seconds. Then, turn the key back to the "Off" position and remove it. Your remote should now be reprogrammed and ready to use.
You normally do not have to reprogram the key when you replace the battery. If you do you will have to contact your VW dealer.
To reprogram the key fob for a 2002 Mercedes, first, ensure you have all the keys you want to program. Insert the key into the ignition and turn it to the "On" position without starting the engine. Press and hold the "Lock" button on the key fob for about 5 seconds, then release it. Turn the ignition off and remove the key; the fob should now be reprogrammed. If you have multiple fobs, repeat the process for each one.