How do you clear anti theft warning light on a Pontiac Sunfire?

To clear the anti-theft warning light on a Pontiac Sunfire, first, ensure that your vehicle is in the "On" position without starting the engine. Insert the key into the ignition and turn it to the "On" position for about 10 minutes until the light turns off. After that, turn the ignition off and then start the engine to see if the light remains off. If the warning persists, consult the vehicle's owner manual or a professional mechanic for further assistance.