Cadillac 2004 Seville - Manual (Page 320)

Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected each time
maintenance is performed. See Wiper Blade Check
under Scheduled Maintenance on page 6-4 for more
information.
It is a good idea to clean or replace the wiper blade
assembly on a regular basis or when worn. For proper
windshield wiper blade length and type, see Normal
Maintenance Replacement Parts on page 6-13.
To replace the wiper blade assembly do the following:
1. Lift the wiper up from the windshield and set into the
vertically-locked position.
2. Press the tab that holds the wiper blade to the arm.
3. Slide the blade down and off the arm.
4. Slide in the new blade and snap into place.
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