Clean glass surfaces on a regular basis. Use GM Glass Cleaner GM P/N 1050427 or equivalent in order to remove normal tobacco smoke and dust films.

You may use a non abrasive cleaner such as Bon-Ami© or equivalent on the outside of the windshield. Clean the wiper blades with a cloth soaked solution of one-half water and one-half GM Optikleen GM P/N 1051515 or equivalent. You may also use a solution of one-half water and one-half isopropyl. Then, rinse the blade with water.