GM Service Manual Online
For 1990-2009 cars only
  1. Determine the location of the rearview mirror support:
  2. 1.1. Use a wax pencil in order to draw a centerline on the windshield from the roof panel to the windshield base.
    1.2. Draw a line intersecting the centerline 86.75 mm (3.41 in) from the top of the windshield at the blackout line.

    The base of the rearview mirror support will be located at the intersection of these lines.

  3. Use a window cleaning solution and a paper towel in order to clean the inside of the windshield surface within 3 in of the intersecting lines until the area is completely clean and dry.
  4. Remove the rearview mirror support from the inside rearview mirror.
  5. 3.1. Sand the bonding surface of the rearview mirror support with no. 320 or no. 360 fine grit emery cloth or sandpaper.

    If you reuse the rearview mirror support, remove all traces of the factory installed adhesive.

    3.2. Wipe the sanded mirror support with a clean, alcohol-saturated paper towel.
    3.3. Allow the mirror to dry.
  6. Apply Loctite Minute-Bond Adhesive 312, or equivalent to the rearview mirror support. Follow the manufacturer's instructions.
  7. Position the bottom of the rearview mirror support at the premarked line. The rounded edge of the support should face upward.

  8. Object Number: 311791  Size: SH
  9. Press the rearview mirror support against the window for 30-60 seconds with a steady pressure.
  10. Allow the adhesive to dry for 5 minutes.
  11. Clean the following components with an alcohol moistened paper towel:
  12. • Excess adhesive from around the mirror support
    •  Clean the wax marks from the windshield