Just for thrills I ran down to the shop to see what sort of setup my "D" has and it's the "Hook Arm". As Timm9 suggests, get the wiper arm pointed down so that you can hinge the wiper arm away from the glass rather than have it hit one of the lights. Then as in Picture #2 in Xfaxman's post, rotate the wiper so it's basically perpendicular to the arm. The release tab that needs to be pressed in with a small blade screwdriver should be readily apparent. You'll need to take the little screwdriver and fiddle/cuss/etc with the little tab until the wiper blade easily releases. Took about 30 seconds but I'm an experienced fiddler/cusser/etc'er when it comes to my Toolcat. YMMV.