Mazda Mazda3 2019 Owner's Manual page 434

Maintenance and Care
Owner Maintenance
CAUTION
To prevent damage to the rear window,
do not let the wiper arm fall on it.
2. Pull down the blade rubber and slide it
out of the blade holder.
3. Remove the metal stiffeners from the
blade rubber and install them in the
new blade.
CAUTION
Do not bend or discard the stiffeners.
You need to use them again.
6-22
4. Carefully insert the new blade rubber.
Then install the blade assembly in the
reverse order of removal.