Bonjour,
En complément de la réponse précédente..
Simply step outside of the baggage claim area on the median curb on the Arrival/Ground Level and flag-down your selected company's vehicle as you see them pass by.
Miami International Airport does not have any rental car return locations at the terminal facilities.
When returning the rental car, please follow the posted signs to the specific company. Be sure to allow at least a half hour for shuttle to the airport. If your company's sign is not posted, contact the rental agency for directions.
Et sur ce lien, cliquez sur le lien vous verrez où la navette vous conduira.
N'ayez aucune inquiétude, ça se passe toujours très bien.