Cadillac 2004 CTS - Manual (Page 342)

Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected at least
twice a year for wear or cracking. See
Owner Checks
and Services on page 6-10.
It’s 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 6-15.
To replace the wiper blade assembly, do the following:
1. Turn the ignition to ON with the engine off.
2. Turn on the windshield wipers and turn them off
again when the wipers are in the out-wipe position.
The driver’s side blade will be straight up and
down on the windshield.
3. Pull the windshield wiper assembly away from the
windshield.
4. Lift the wiper blade assembly up so it is in a
T-shaped position. You should be able to see a tab.
5-56