GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the wire cover.

  2. Object Number: 657850  Size: SH
  3. Disconnect the electrical connector (2) from the back of the mirror.
  4. Adjust the rearview mirror (1) to the full upright position.
  5. Remove the base trim cover.
  6. Loosen the screw (3) at the mirror base.
  7. Slide the rearview mirror assembly (1) upward in order to remove the rearview mirror assembly (1) from the mirror button.

Installation Procedure


    Object Number: 657850  Size: SH
  1. Position the center bottom of the rearview mirror (1) against the windshield at the top of the support button.
  2. Slide the base of the rearview mirror (1) onto the button.
  3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  4. Tighten the screw (3).
  5. Tighten
    Tighten the screw (3) to 1.8 N·m (16 lb in) in order to secure the mirror base to the button.

  6. Install the base trim cover.
  7. Connect the electrical connector (2).
  8. Install the wire cover.
  9. Reposition the mirror assembly.
  10. Calibrate the mirror compass, if equipped with DD7. Refer to Compass Calibration and Magnetic Variance .
  11. Refer to Control Module References for programming and setup information.