Cleaning
If your windshield is not clear after using the windshield washer or if a wiper blade chatters when running, wax or other material may be on the blade or windshield.
Clean the outside of the windshield with a washer solution or a mild detergent. Your windshield 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 your windshield is still not clear after cleaning the blades and using the wiper, replace the blades.

Worn windshield wiper blades can damage the windshield and impair driver vision.
See also:
Washing
Wash dirt off the vehicle with a wet sponge and
plenty of water. Clean the vehicle thoroughly
using a mild soap, a special vehicle soap or
general purpose dishwashing liquid mixed with
clean, ...
Windshield wiper and washer switch
In freezing temperatures the washer
solution may freeze on the windshield
and obscure your vision which may lead
to an accident. Warm windshield with
the defroster before you wash the
wi ...
Seats, seat belts and Supplemental Restraint System
(SRS)
Seats, seat belts and Supplemental Restraint System
(SRS)
1. Supplemental front-impact air bags
2. Front seat-mounted side-impact supplemental air bags
3. Seat belts
4. Head restraints
†...
