How do you program a key fob for a 2000 jaguar xk8?

To program a key fob for a 2000 Jaguar XK8, first, insert the key into the ignition and turn it to the "On" position without starting the engine. Within five seconds, press and hold the "Unlock" button on the fob while simultaneously pressing the "Lock" button three times. After that, release the "Unlock" button and turn the ignition off. The fob should now be programmed; test it to ensure it functions correctly.