Chevrolet 2007 Monte Carlo Owner's Manual page 348

To remove and replace the wiper blade element
do the following:
1. The wiper blade element has two notches at
one end which are engaged by the bottom
claw set of the wiper blade. At the notched
end of the wiper blade, pull the wiper
blade element from the wiper blade assembly.
2. To replace the element, start at the heel end
of the wiper blade, which is the end nearest
to the base of the wiper arm, and slide
the wiper blade element, notched end last,
into the wiper blade claw sets.
3. To engage the last claw into the notched
end of the wiper blade element, squeeze
the wiper blade element at the notched area,
and push the wiper blade element so the
claw fits into the notch.
4. Be sure the two wiper blade element notches
are engaged by the last claw set, and that all
the other claws are properly engaged in the
slots of the wiper blade element on both sides.
348
A. Correct Installation
B. Incorrect Installation
For the proper type and size windshield wiper
blades, see Normal Maintenance Replacement
Parts on page 416.