Wash and dry the area
Warm the decal with a hair dryer or heat gun on low
Lift an edge with a plastic scraper, credit card, or fingernail
Peel the decal off slowly
Reheat stubborn spots as needed
Remove leftover adhesive with adhesive remover, rubbing alcohol, or citrus cleaner
Wipe the area with a microfiber cloth
Wash the spot with soap and water
Apply wax or polish to restore the finish