Lift the arm up and where the arm hooks up you'll see a little clip pry it out and you can remove the arm. Then turn on the wipers on and watch the round piece. You should see it moving back and forth. If no check the wiper transmitting for being broken. Almost always the wiper arm gets striped and needs replacement.
Here are some guides to help you see what you have to do to fix it
Check out the diagrams (Below)
Please let us know if you need anything else to get the problem fixed.
Images (Click to enlarge)
Monday, April 8th, 2019 AT 5:00 PM