If your Glanza has the remote central locking fuction it's really easy to program - Unlock the car. Climb in and close the door. Insert the key into the ignition barrel, turn the ignition ON-OFF 3 times Pull the key out of the barrel then press the button on the new fob. Locks should now cycle on, off. Insert key back into the ignition, and then again turn the ignition ON-OFF 3 times. Pull the key out of the barrel and then, again press the button on the new fob. Locks should now cycle on, off. The fob is now programmed to the car, just double check by pressing the button on the fob a couple of times, the locks should go up and down. And for those of you who would like a fob heres the part number 89742-10010 Cost me £32.55 incl VAT from Toyota (30/01/10)