How do change a ignition switch on a 1989 Buick Electra?

To change the ignition switch on a 1989 Buick Electra, first disconnect the battery to ensure safety. Remove the steering column cover to access the ignition switch, then detach the wiring harness and any screws securing the switch. Replace the old switch with a new one, reattach the wiring, and reassemble the steering column cover. Finally, reconnect the battery and test the new ignition switch to ensure it's functioning properly.