Chevrolet 2009 Equinox Owner's Manual page 338

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.
5-50
To replace the rear window wiper blade:
1. Lift the wiper blade arm straight toward you.
2. Push the blade release button and slide the whole
blade to the right to remove.
3. Install the new blade.
4. Push the wiper blade arm back into place.