Cadillac 2004 DeVille - Manual (Page 339)

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.
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. Turn the ignition to ACCESSORY and turn the
wipers on. Position the wipers on the windshield
in the mid-wipe position. Then with a door
open, turn the ignition to OFF.
2. Tip the blade up almost to a T position and push
down on the tab to release the wiper blade
assembly.
3. To install, align the wiper blade with the loop on the
wiper blade assembly, and push up to snap it into
place.
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