GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2009 🢒 Lucerne 🢒 Roof 🢒 Sunroof 🢒 Sunroof Frame Replacement

Removal Procedure

    Note: A new sunroof frame assembly will not have the sunroof window or the sunshade as components of the new service part.

  1. The old sunroof window and sunshade will need to be installed to the new sunroof frame assembly.

    2. Object Number: 1542792 Size: SH
  2. Remove the sunroof window. Refer to Sunroof Window Replacement.
  3. Remove the sunshade panel. Refer to Sunroof Sunshade Replacement.
  4. Remove the air deflector. Refer to Sunroof Air Deflector Replacement.

    5. Note: It is only necessary to lower the headliner. Only do the steps in headliner replacement that will lower the headliner enough to gain access.

  5. Lower the headliner. Refer to Headlining Trim Panel Replacement.
  6. Disconnect the electrical connector on the sunroof actuator.
  7. Cut the tie straps securing the electrical harness to the sunroof cable rear drive tube.

    8. Object Number: 758127 Size: SH
  8. Disconnect the drain hoses from the front sunroof frame drain spouts (1).

    9. Object Number: 758133 Size: SH
  9. Disconnect the drain hoses from the rear sunroof frame drain spouts.

    10. Object Number: 776057 Size: SH
  10. Remove the sunroof frame to the roof bolts (1).
  11. Remove the 2 center, side to side, bolts last in order to help support the sunroof frame to the roof ring.
  12. Remove the last 2 sunroof to roof ring bolts.
  13. With the aid of an assistant, lower and remove the sunroof frame assembly out the passenger side door.

Installation Procedure

    Object Number: 776057 Size: SH
  1. With the aid of an assistant, position the new sunroof frame assembly into the alignment pins (2) located on the roof ring.
  2. Hand start the 2 center, side to side, sunroof frame assembly to roof bolts (1) in order to hold the sunroof frame into place.
  3. Finger tighten the 2 center bolts.

    4. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the remaining sunroof frame to roof bolts and tighten the bolts to 9 N·m (80 lb in).

    5. Object Number: 758127 Size: SH
  5. Connect the front and rear drain hoses to the drain spouts (1) on the sunroof frame.

    6. Object Number: 1542792 Size: SH
  6. Install sunroof motor/actuator to the frame.
  7. Install the screws to the motor/actuator and tighten the bolts to 6 N·m (53 lb in).
  8. Connect the electrical connector to the sunroof motor/actuator.
  9. Secure the harness with suitable straps.
  10. Install the air deflector. Refer to Sunroof Air Deflector Replacement.
  11. Install the sunshade. Refer to Sunroof Sunshade Replacement.
  12. Install the sunroof window and loosely install the screws. Refer to Sunroof Window Replacement.
  13. Adjust the sunroof window. Refer to Sunroof Window Height and Opening Fit Adjustment.
  14. Verify the proper operation of the sunroof before securing the headliner.
  15. Initialization/Teach the sunroof motor. Refer to Sunroof Motor/Actuator Initialization/Teach Process.
  16. Raise and install the headliner, with the aid of an assistant. Refer to Headlining Trim Panel Replacement.