What are the functions of windshield wiper?
To clean windshield if you have was circuit on switch, other than that to wipe water off windshield when raining so you can see where you're going. Rubber part of blades should be replaced annually.
You seriously cannot tell from the name? It's fairly obvious isn't it?
*facepalm*. To wipe the windshield, particularly to wipe water off of it.
