Chevrolet 2000 Corvette Owner's Manual page 287

2. Lift the wiper arm until it locks into a vertical position.
A. Blade Assembly
B. Arm Assembly
C. Locking Tab
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3. Press down on the blade assembly pivot locking tab
4. Remove the insert from the blade assembly (A).
D. Blade Pivot
E. Hook Slot
F. Arm Hook
(C). Pull down on the blade assembly (A) to release
it from the wiper arm hook (F).
The insert has two notches at one end that are
locked by the bottom claws of the blade assembly.
At the notched end, pull the insert from the
blade assembly.