GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2006 🢒 LaCrosse 🢒 Body 🢒 Roof 🢒 Sunroof Module Assembly Replacement

Removal Procedure

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

  1. The old sunroof window and sunshade will need to be installed to the new sunroof module assembly.
  2. Remove the sunroof window. Refer to Sunroof Window Replacement .

    3. Object Number: 647217 Size: SH
  3. Remove the sunshade panel. Refer to Sunroof Sunshade Replacement .
  4. Remove the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.
  5. Disconnect the electrical connector from the sunroof module.

    6. Object Number: 791513 Size: SH
  6. Disconnect the front and rear drain hoses from the sunroof module.

    7. Object Number: 317129 Size: MH
  7. Have an assistant support the sunroof module.
  8. Remove the bolts from the sunroof module.
  9. Remove the sunroof module from the vehicle with an assistant.

Installation Procedure

    Object Number: 317129 Size: MH
  1. Position the sunroof module to the vehicle roof with an assistant.

    2. 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.

  2. Install the sunroof module bolts.

    3. Tighten
    Tighten the sunroof module bolts to 10 N·m (89 lb in).


    Object Number: 791513 Size: SH
  3. Connect the front and rear drain hoses to the sunroof module.

    4. Object Number: 647217 Size: SH
  4. Connect the electrical connector to the sunroof module.
  5. Install the sunshade panel. Refer to Sunroof Sunshade Replacement .
  6. Install the sunroof window. Refer to Sunroof Window Replacement .
  7. Perform the Initialization/Teach Procedure. Refer to Sunroof Motor/Actuator Initialization/Teach Process .
  8. Inspect for proper operation of the sunroof. Refer to Sunroof Description and Operation .
  9. Install the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.