Important:  The rearview mirror is attached to a rearview mirror support which is bonded to the windshield. This rearview mirror support is installed by the windshield supplier using a plastic-polyvinyl butyral adhesive. To install a detached rearview mirror support or install a new part, the following items are needed.

1. Measure from top of the windshield (1) to top of the rearview mirror support.

This dimension is 135 mm (5.32 inches).




2. Mark the location on the outside of the windshield with wax pencil or crayon. (1) is the centerline. (2) is the locating circle and base of support line on the outside of the windshield surface. (3) is the circle on the outside of the windshield surface witch indicates the area to be cleaned. Also make larger diameter circle around the rearview mirror support circle on the outside windshield surface.
3. On the inside windshield surface, clean large circle with paper towel and domestic scouring cleanser, GM Window Cleaner GM P/N 1050427 or polishing compound. Rub until area is completely clean and dry. When dry, clean area with an isopropyl alcohol saturated paper towel to remove any traces of scouring powder or cleaning solution.
4. With a piece of fine grit (320 or 360) emery cloth or sandpaper, sand bonding surface of the new rearview mirror support or factory installed rearview mirror support. If the original rearview mirror support is to be reused, all traces of factory installed adhesive must be removed prior to reinstallation.
5. Wipe the sanded rearview mirror support with clean paper towel saturated with isopropyl alcohol and allow to dry.
6. Follow the directions on the manufacturer's kit to prepare the rearview mirror support prior to installation on the windshield.
7. Properly position the rearview mirror support to its premarked location, with rounded end pointed upward; press rearview mirror support against windshield for 30 to 60 seconds, exerting steady pressure against the windshield.
8. After five minutes, remove any excess adhesive with an isopropyl alcohol moistened paper towel or window cleaning solution.
9. Install the rearview mirror. Inside Rearview Mirror Replacement