Wash the sticker area with soap and water
Warm the sticker with a hair dryer or heat gun on low
Lift one corner with a plastic scraper, credit card, or fingernail
Peel the sticker off slowly at a low angle
Reheat stubborn sections as needed while peeling
Remove leftover adhesive with adhesive remover, rubbing alcohol, or citrus cleaner
Wipe the area with a microfiber cloth
Wash the spot again with soap and water
Dry the surface completely
Apply car wax or polish if needed to restore shine