How can you disable theft deterrent system on a 2004 Malibu Classic?

To disable the theft deterrent system on a 2004 Malibu Classic, you can try using the key fob to unlock the doors or start the vehicle, as this may reset the system. If that doesn't work, you can disconnect the battery for about 10-15 minutes to reset the system. Additionally, if the issue persists, consulting the vehicle's manual or a professional mechanic may be necessary for further assistance.