How do you replace turn signal falsher on a 1997 Cadillac Seville STS?

To replace the turn signal flasher on a 1997 Cadillac Seville STS, first locate the flasher unit, which is typically found under the dashboard near the steering column or in the fuse box. Disconnect the negative battery terminal to ensure safety, then remove the old flasher by pulling it out of its socket. Insert the new flasher into the socket, reconnect the battery, and test the turn signals to ensure proper functionality.