A wiper blade insert can be removed from the wiper blade and replaced. A wiper blade insert replacement is needed because if the wiper blade fails or is damaged it can cause restricted visibility and permanent damage to the windshield. A windshield wiper blade insert replacement should be done on a yearly basis or when the blade starts to fail.
While most manufacturer's factory warranties only cover wiper blade inserts for a short period of time, there are maintenance plans that will cover the cost of a windshield wiper blade insert replacement as part of the vehicle's regularly scheduled maintenance.