How do you replace the blower motor fan on a 2001 Buick century?

To replace the blower motor fan on a 2001 Buick Century, first disconnect the battery to ensure safety. Next, remove the passenger side lower dash panel and locate the blower motor, which is typically positioned under the glove compartment. Disconnect the wiring harness and remove the screws securing the blower motor, then take out the old motor and install the new one by reversing the process. Finally, reattach the dash panel and reconnect the battery to complete the installation.