How do you change a passlock module on a 2001 Oldsmobile alero?

To change the passlock module on a 2001 Oldsmobile Alero, first disconnect the negative battery cable to ensure safety. Remove the steering column cover by unscrewing the necessary fasteners, then locate the passlock module, which is typically positioned near the ignition lock cylinder. Disconnect the wiring harness from the module, remove any mounting screws, and replace the old module with the new one. Reassemble the steering column cover, reconnect the battery, and follow any reprogramming steps necessary for the new module to function properly.