How do I remove the metal slide clip from the back of a 1995 Toyota Avalon rear view mirror so that it can be re-mounted?

SOURCE: Rear view mirror bumped and fell off - how do I reinstall?

Go to Auto Zone or any other auto place and buy some rear-view mirror adhesive its a kit with a cleaner and a clear glue it Works will re-attach mirror. Good Luck

SOURCE: Toyota Avalon Rear View Mirror

The "button" or metal disc you speak of comes off the mirror assembly by loosening the small torx/allen screw hidden under the sheath that covers the mirror "stalk"...follow the rearview mirror directions, to the letter. If you cannot get the button out...carefully clean the face of that button off using a safety razor, being careful not to nick or abrade the button...make sure the same spot on the windshield by marking it with a felt tip marker on the outside of the windshield BEFORE you clean the residue off the glass!
Good Luck

SOURCE: toyota avalon inside rear view mirror came off of mount

sliding the rear view mirror onto the metal tab on the window. look at the part of the mirror that slides over the peice on the window. one end is open and has grooves on the side. you have to put the base of the mirror above the metal mount and flat against the window then slide it down over the mount. there may be a screw to hold it in place.

SOURCE: 1997 Buick Park Avenue Need to reglue to rear view mirror

there should be a small screw that is preventing the metal anchor from sliding free of the assrmbly. It will most likely be a phillips or allen wrench or t drive.

SOURCE: rear view mirror fell off...how do i get metal

some have a small set screw in the center an allen screw or torks screw and some just slide in take a flat head screw driver and carefully pry it up and it will slide towards the top and out hope this helps please dont forget to rate my solution