Clean and unscratched chrome shines and reflects brightly in the sunshine. Although plastic chrome is durable and resists scratching, accidents happen whether you are on the road, at the mall and parked at home. You can remove light scratches from plastic chrome by washing and buffing the scratches. If your plastic chrome has a deep scratch, you may need to take it to the auto bodyworks garage for a professional repair.
Wash the plastic chrome in warm water with a sponge in a solution car-wash soap made for washing plastic chrome. The proportions of soap and water vary depending on the brand of car-wash soap you have. Mix according to manufacturer's directions. Rinse the sponge frequently in clear water to avoid scratching the chrome more. You can use a brush, but make sure it has very soft bristles so it doesn't scratch the plastic chrome.
Rinse the washed area with clean water, then dry with a soft, thick-nap terry cloth or chamois.
Wrap a piece of cotton cloth around your index finger. Add a dot of mild or non-abrasive polish to the tip of the cloth and buff the polish in a circular motion.
Buff the polish away with a clean, dry cloth.