Nissan LEAF 2023 Owners Manual
12.7. Cleaning
If the windscreen is not clear after using the windscreen washer or if a wiper blade chatters when running, wax or other material may be on the blade or windscreen.
Clean the outside of the windscreen with a washer solution or a mild detergent. The windscreen is clean if beads do not form when rinsing with clear water.
Clean each blade by wiping it with a cloth soaked in a washer solution or a mild detergent. Then rinse the blade with clear water. If the windscreen is still not clear after cleaning the blades and using the wiper, replace the blades.
After wiper blade replacement, return the wiper arm to its original position. Otherwise it may be damaged when the bonnet is opened.
Make sure the wiper blade contacts the glass. Otherwise, the arm may be damaged from wind pressure.
Do not open the bonnet when the front wiper is in the servicing position otherwise it can damage the paint surface of the bonnet.
Worn windscreen wiper blades can damage the windscreen and impair driver vision.
Debris or contamination can get trapped between the blade rubber and wiper arm. This can lead to streaking on the windscreen.