Mazda CX-9 2019 Owner's Manual page 530

Maintenance and Care
Owner Maintenance
9. Align the blade component projection
with the wiper arm notch.
Projection
10. Slide the blade component and install
it to the wiper arm.
11. Slowly lower the wiper arm onto the
windshield.
▼ Replacing Rear Window Wiper
Blade
When the wiper no longer cleans well, the
blade is probably worn or cracked.
Replace it.
CAUTION
To prevent damage to the wiper arm and
other components, do not move the wiper
by hand.
6-32
Notch
1. Remove the cover and raise the wiper
arm.
2. Firmly rotate the wiper blade to the
right until it unlocks, then remove the
blade.
CAUTION
To prevent damage to the rear window,
do not let the wiper arm fall on it.