The rearview mirror is secured with special rearview mirror glue purchased as a kit at any auto-parts store. It's the only type of adhesive that will work, because the adhesive is exposed to ultraviolet rays, which deteriorate most other adhesives. The rearview mirror adhesive kit comes with a primer for the glass and an adhesive. The most common mistake is to attach the wrong side of the mirror base to the window.
Remove the rearview mirror base--the part that attaches to the windshield--using a Phillips screwdriver to remove the screw securing it. Clean all excess adhesive left of the mirror base using a razor blade.
Look at the windshield and you can see the location of the mirror--adhesive residue is on the windshield. Draw a small line directly under the adhesive, on the outside of the window, so the mirror can be placed in the same position as removed. Placement of the mirror base is important, because the instant the base touches the window it can't be removed.
Cut the adhesive off the window with the razor blade. Clean the area on the window and the mirror base with a clean cloth soaked in alcohol. Allow a minute for it to dry.
Prime the area where the mirror will be attached. Take the cardboard cover off the primer. Hold it with two hands and bend it enough to break the plastic case. Hold the primer brush down so the primer can saturate the brush. Brush the entire area where the mirror will be located.
Position the mirror base with the dimpled side down. The base will be positioned on the window with the dimple toward you and the narrow part of the taped base up and the wide part on the bottom. An easy way to remember this is to make sure the side that gets stuck to the window is completely flat.
Cut the tip off the adhesive tube and place just one drop of adhesive in the center of the base. Carefully position the base close to the window. When satisfied with the position, press it to the window. Keep good pressure on the base for one minute before relaxing the pressure. Allow two hours before sliding the mirror onto the base and tightening the Phillips screw to hold it in place.
