Cadillac 2010 STS - Manual (Page 407)

Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for wear
or cracking. See Scheduled Maintenance on page 7‑3.
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
Maintenance Replacement Parts on page 7‑11.
To replace the wiper blade assembly, do the following:
1. Pull the windshield wiper assembly away from the
windshield.
2. Squeeze the tabs on each side of the wiper blade
assembly and slide the assembly off the end of the
wiper arm.
3. Replace the blade assembly with a new one.
Allowing the wiper blade arm to touch the
windshield when no wiper blade is installed could
damage the windshield. Any damage that occurs
would not be covered by your warranty. Do not
allow the wiper blade arm to touch the windshield.
4. Repeat the steps for the other wiper.
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