GM Service Manual Online
For 1990-2009 cars only

Sunshade Removal Procedure

Caution: When working with any type of glass or sheet metal with exposed or rough edges, wear approved safety glasses and gloves in order to reduce the chance of personal injury.


    Object Number: 258907  Size: SH
  1. Remove the glass panel. Refer to Sunroof Glass Panel Replacement .
  2. Cycle the unit to the vent position.
  3. Slide the trough and shield forward.
  4. Slide the sunshade (1) forward.
  5. Lift and turn the front edge of the sunshade (1) in order to disengage the clips (3).

Sunshade Installation Procedure


    Object Number: 258907  Size: SH
  1. Slide the trough and shield forward.
  2. Flex the sunshade (1) in order to clear the stops.
  3. Keep the unit centered and slide the sunshade (1) to the rear.
  4. Slide the sunshade (1) forward.
  5. Install the glass panel. Refer to Sunroof Glass Panel Replacement .

Lifter Arm Replacement Procedure


    Object Number: 258904  Size: SH
  1. Remove the glass panel. Refer to Sunroof Glass Panel Replacement .
  2. Cycle the unit to the rear until the lift pin is clear.
  3. Remove the 3 screws and the cover plates (1) on each side.

  4. Object Number: 258907  Size: SH
  5. Cycle the unit rearward in order to expose the openings (2) in the track (4).
  6. Remove the front lifter guides (3) from the track (4).
  7. Cycle the unit forward in order to release the lifter arm from the trolley.

Lifter Arm Installation Procedure


    Object Number: 258907  Size: SH
  1. Install the lifter arms (3).

  2. Object Number: 258904  Size: SH

    Important: Install the machine screws (4) in the same location as before the removal.

  3. Install the cover plates (1).
  4. Cycle the trough and shield assembly to the full rear travel position.
  5. Install the glass panel. Refer to Sunroof Glass Panel Replacement .

Trough and Shield Replacement Procedure


    Object Number: 258904  Size: SH
  1. Remove the glass panel. Refer to Sunroof Glass Panel Replacement .
  2. Cycle the unit to the rear until the lift pin is clear.
  3. Remove the cover plates (1).

  4. Object Number: 258907  Size: SH
  5. Cycle the unit forward in order to expose the openings (2) in the track (4).
  6. Slide the lifter arms to the rear.
  7. Lift out the arms through the openings (2) in the track.
  8. Cycle the trolley forward. Do not disengage the cable from the transmission.
  9. Pull the trough and shield assembly forward.
  10. Lift out the trough and shield assembly through the opening (2) in the track (4).

Trough and Shield Installation Procedure


    Object Number: 258907  Size: SH
  1. Install the guide shoes (3) of the trough and shield assembly into the opening (2) in the track (4).
  2. Engage the guide shoes of the trough and shield assembly in the slot on the track (4).
  3. Center the trough and shield assembly.
  4. Push the trough and shield assembly into the housing until the assembly is seated.

  5. Object Number: 258904  Size: SH

    Important: Install the machine screws (4) in the same location as before the removal.

  6. Install the lifter arms and the cover plates (1).
  7. Cycle the trough and shield assembly to full rear travel.
  8. Install the glass panel. Refer to Sunroof Glass Panel Replacement .