Wash the area with soap and water
Warm the sticker with a hair dryer or heat gun on low
Lift an edge with a plastic card or plastic scraper
Peel the sticker off slowly
Apply adhesive remover, rubbing alcohol, or citrus cleaner to leftover residue
Wipe the residue with a microfiber cloth
Repeat heat and remover as needed
Wash the area again
Dry the surface completely
Apply wax or polish if needed to restore shine