Hummer H2 2010 Owner's Manual page 439

To replace the windshield wiper blade assembly:
1. Lift the wiper arm away from the windshield.
2. Push the release lever (B) to disengage the hook
and push the wiper arm (A) out of the blade (C).
3. Push the new wiper blade securely on the wiper
arm until you hear the release lever click into
place.
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