GMC 2007 Envoy - Manual (Page 436)

Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for
wear or cracking. See Scheduled Maintenance
on page 507.
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.
1. To remove the old wiper blades, lift the wiper
arm until it locks into a vertical position.
A. Blade Assembly
B. Arm Assembly
C. Locking Tab D. Blade Pivot
E. Hook Slot
F. Arm Hook
2. Press down on the blade assembly pivot
locking tab. Pull down on the blade assembly
to release it from the wiper arm hook.
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