How do you disable the theft system on a 1998 Pontiac grand am?

To disable the theft system on a 1998 Pontiac Grand Am, you can try using the key in the driver's door to unlock it, as this can sometimes reset the system. If that doesn't work, you can disconnect the battery for about 10-15 minutes and reconnect it to reset the system. If the problem persists, it may be necessary to consult a professional or refer to the vehicle's service manual for further troubleshooting.