How do you disarm anti theft system on 1993 Lexus gs 300?

To disarm the anti-theft system on a 1993 Lexus GS 300, insert the key into the ignition and turn it to the "On" position without starting the engine. Wait for about 30 seconds; the system should reset itself. If the system remains activated, you may need to use the key fob to unlock the doors or consult the owner's manual for specific reset procedures. If issues persist, professional assistance may be required.