How do you change a ignition switch on a 2001 Buick park avenue?

To change the ignition switch on a 2001 Buick Park Avenue, first, disconnect the negative battery cable to ensure safety. Remove the steering column cover by unscrewing the fasteners, then detach the ignition lock cylinder by inserting the key and turning it to the "Run" position while pressing the release pin. Next, disconnect the wiring harness from the ignition switch, remove the old switch, and install the new one in reverse order. Finally, reassemble the steering column cover and reconnect the battery.