How do you replace the right side mirror of a 2005 Buick Lacrosse?

To replace the right side mirror of a 2005 Buick Lacrosse, first, disconnect the negative battery cable to avoid electrical issues. Then, remove the interior door panel by unscrewing any fasteners and carefully prying it away to access the mirror mounting screws. Detach the old mirror by unscrewing it from the outside and disconnecting the wiring harness, then install the new mirror by reversing the process. Finally, reattach the door panel and reconnect the battery.